Update module spf13/viper to v1.6.2 (#272)

Update module spf13/viper to v1.6.2

Reviewed-on: https://kolaente.dev/vikunja/api/pulls/272

go.mod

@@ -62,7 +62,7 @@ require (
 	github.com/spf13/afero v1.2.2
 	github.com/spf13/cobra v0.0.3
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
-	github.com/spf13/viper v1.3.2
+	github.com/spf13/viper v1.6.2
 	github.com/stretchr/testify v1.4.0
 	github.com/swaggo/swag v1.6.3
 	github.com/ulule/limiter/v3 v3.3.0

go.sum

@@ -19,6 +19,7 @@ github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ
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@@ -46,13 +47,17 @@ github.com/c2h5oh/datasize v0.0.0-20171227191756-4eba002a5eae h1:2Zmk+8cNvAGuY8A
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@@ -70,6 +75,7 @@ github.com/denisenkom/go-mssqldb v0.0.0-20200206145737-bbfc9a55622e h1:LzwWXEScf
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@@ -90,6 +96,7 @@ github.com/gin-gonic/gin v1.4.0/go.mod h1:OW2EZn3DO8Ln9oIKOvM++LBO+5UPHJJDH72/q/
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@@ -131,9 +138,11 @@ github.com/go-xorm/xorm v0.7.9/go.mod h1:XiVxrMMIhFkwSkh96BW7PACl7UhLtx2iJIHMdmj
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@@ -144,17 +153,23 @@ github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs
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@@ -175,11 +190,14 @@ github.com/jgautheron/goconst v0.0.0-20200227150835-cda7ea3bf591 h1:x/BpEhm6aL26
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@@ -252,6 +272,7 @@ github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3Rllmb
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@@ -310,6 +337,10 @@ github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeV
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@@ -328,6 +359,8 @@ github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
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@@ -337,11 +370,14 @@ github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0
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@@ -360,10 +396,15 @@ github.com/valyala/fasttemplate v1.0.1 h1:tY9CJiPnMXf1ERmG2EyK7gNUd+c6RKGD0IfU8W
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@@ -384,6 +425,7 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
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@@ -404,6 +446,7 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
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@@ -427,6 +470,7 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
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@@ -455,12 +499,15 @@ golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3
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@@ -488,6 +535,7 @@ google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRn
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@@ -503,12 +551,17 @@ gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8
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 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

vendor/github.com/magiconair/properties/.travis.yml

@@ -7,4 +7,6 @@ go:
     - 1.8.x
     - 1.9.x
     - "1.10.x"
+    - "1.11.x"
+    - "1.12.x"
     - tip

vendor/github.com/magiconair/properties/CHANGELOG.md

@@ -1,5 +1,13 @@
 ## Changelog
 
+### [1.8.1](https://github.com/magiconair/properties/tree/v1.8.1) - 10 May 2019
+
+ * [PR #26](https://github.com/magiconair/properties/pull/35): Close body always after request
+
+   This patch ensures that in `LoadURL` the response body is always closed.
+
+   Thanks to [@liubog2008](https://github.com/liubog2008) for the patch.
+
 ### [1.8](https://github.com/magiconair/properties/tree/v1.8) - 15 May 2018
 
  * [PR #26](https://github.com/magiconair/properties/pull/26): Disable expansion during loading

vendor/github.com/magiconair/properties/README.md

@@ -1,6 +1,6 @@
 [![](https://img.shields.io/github/tag/magiconair/properties.svg?style=flat-square&label=release)](https://github.com/magiconair/properties/releases)
 [![Travis CI Status](https://img.shields.io/travis/magiconair/properties.svg?branch=master&style=flat-square&label=travis)](https://travis-ci.org/magiconair/properties)
-[![Codeship CI Status](https://img.shields.io/codeship/16aaf660-f615-0135-b8f0-7e33b70920c0/master.svg?label=codeship&style=flat-square)](https://app.codeship.com/projects/274177")
+[![CircleCI Status](https://img.shields.io/circleci/project/github/magiconair/properties.svg?label=circle+ci&style=flat-square)](https://circleci.com/gh/magiconair/properties)
 [![License](https://img.shields.io/badge/License-BSD%202--Clause-orange.svg?style=flat-square)](https://raw.githubusercontent.com/magiconair/properties/master/LICENSE)
 [![GoDoc](http://img.shields.io/badge/godoc-reference-5272B4.svg?style=flat-square)](http://godoc.org/github.com/magiconair/properties)
 
@@ -30,7 +30,7 @@ changed from `panic` to `log.Fatal` but this is configurable and custom
 error handling functions can be provided. See the package documentation for
 details.
 
-Read the full documentation on [GoDoc](https://godoc.org/github.com/magiconair/properties)   [![GoDoc](https://godoc.org/github.com/magiconair/properties?status.png)](https://godoc.org/github.com/magiconair/properties)
+Read the full documentation on [![GoDoc](http://img.shields.io/badge/godoc-reference-5272B4.svg?style=flat-square)](http://godoc.org/github.com/magiconair/properties)
 
 ## Getting Started
 

vendor/github.com/magiconair/properties/go.mod

@@ -0,0 +1 @@
+module github.com/magiconair/properties

vendor/github.com/magiconair/properties/load.go

@@ -115,6 +115,7 @@ func (l *Loader) LoadURL(url string) (*Properties, error) {
 	if err != nil {
 		return nil, fmt.Errorf("properties: error fetching %q. %s", url, err)
 	}
+	defer resp.Body.Close()
 
 	if resp.StatusCode == 404 && l.IgnoreMissing {
 		LogPrintf("properties: %s returned %d. skipping", url, resp.StatusCode)
@@ -129,7 +130,6 @@ func (l *Loader) LoadURL(url string) (*Properties, error) {
 	if err != nil {
 		return nil, fmt.Errorf("properties: %s error reading response. %s", url, err)
 	}
-	defer resp.Body.Close()
 
 	ct := resp.Header.Get("Content-Type")
 	var enc Encoding

vendor/github.com/spf13/viper/.gitignore

@@ -1,29 +1,20 @@
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
+/bin/
-*.o
+/build/
-*.a
+/var/
-*.so
+/vendor/
 
-# Folders
+# IDE integration
-_obj
+/.vscode/*
-_test
+!/.vscode/launch.json
-
+!/.vscode/tasks.json
-# Architecture specific extensions/prefixes
+/.idea/*
-*.[568vq]
+!/.idea/codeStyles/
-[568vq].out
+!/.idea/copyright/
-
+!/.idea/dataSources.xml
-*.cgo1.go
+!/.idea/*.iml
-*.cgo2.c
+!/.idea/externalDependencies.xml
-_cgo_defun.c
+!/.idea/go.imports.xml
-_cgo_gotypes.go
+!/.idea/modules.xml
-_cgo_export.*
+!/.idea/runConfigurations/
-
+!/.idea/scopes/
-_testmain.go
+!/.idea/sqldialects.xml
-
-*.exe
-*.test
-*.bench
-
-.vscode
-
-# exclude dependencies in the `/vendor` folder
-vendor

vendor/github.com/spf13/viper/.golangci.yml

@@ -0,0 +1,24 @@
+linters-settings:
+    golint:
+        min-confidence: 0.1
+    goimports:
+        local-prefixes: github.com/spf13/viper
+
+linters:
+    enable-all: true
+    disable:
+        - funlen
+        - maligned
+
+        # TODO: fix me
+        - wsl
+        - gochecknoinits
+        - gosimple
+        - gochecknoglobals
+        - errcheck
+        - lll
+        - godox
+        - scopelint
+        - gocyclo
+        - gocognit
+        - gocritic

vendor/github.com/spf13/viper/.travis.yml

@@ -5,9 +5,12 @@ language: go
 env:
   global:
     - GO111MODULE="on"
+    - GOFLAGS="-mod=readonly"
 
 go:
   - 1.11.x
+  - 1.12.x
+  - 1.13.x
   - tip
 
 os:
@@ -27,5 +30,3 @@ script:
 after_success:
   - go get -u -d github.com/spf13/hugo
   - cd $GOPATH/src/github.com/spf13/hugo && make && ./hugo -s docs && cd -
-
-sudo: false

vendor/github.com/spf13/viper/Makefile

@@ -0,0 +1,76 @@
+# A Self-Documenting Makefile: http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
+
+OS = $(shell uname | tr A-Z a-z)
+export PATH := $(abspath bin/):${PATH}
+
+# Build variables
+BUILD_DIR ?= build
+export CGO_ENABLED ?= 0
+export GOOS = $(shell go env GOOS)
+ifeq (${VERBOSE}, 1)
+ifeq ($(filter -v,${GOARGS}),)
+	GOARGS += -v
+endif
+TEST_FORMAT = short-verbose
+endif
+
+# Dependency versions
+GOTESTSUM_VERSION = 0.4.0
+GOLANGCI_VERSION = 1.21.0
+
+# Add the ability to override some variables
+# Use with care
+-include override.mk
+
+.PHONY: clear
+clear: ## Clear the working area and the project
+	rm -rf bin/
+
+.PHONY: check
+check: test lint ## Run tests and linters
+
+bin/gotestsum: bin/gotestsum-${GOTESTSUM_VERSION}
+	@ln -sf gotestsum-${GOTESTSUM_VERSION} bin/gotestsum
+bin/gotestsum-${GOTESTSUM_VERSION}:
+	@mkdir -p bin
+	curl -L https://github.com/gotestyourself/gotestsum/releases/download/v${GOTESTSUM_VERSION}/gotestsum_${GOTESTSUM_VERSION}_${OS}_amd64.tar.gz | tar -zOxf - gotestsum > ./bin/gotestsum-${GOTESTSUM_VERSION} && chmod +x ./bin/gotestsum-${GOTESTSUM_VERSION}
+
+TEST_PKGS ?= ./...
+.PHONY: test
+test: TEST_FORMAT ?= short
+test: SHELL = /bin/bash
+test: export CGO_ENABLED=1
+test: bin/gotestsum ## Run tests
+	@mkdir -p ${BUILD_DIR}
+	bin/gotestsum --no-summary=skipped --junitfile ${BUILD_DIR}/coverage.xml --format ${TEST_FORMAT} -- -race -coverprofile=${BUILD_DIR}/coverage.txt -covermode=atomic $(filter-out -v,${GOARGS}) $(if ${TEST_PKGS},${TEST_PKGS},./...)
+
+bin/golangci-lint: bin/golangci-lint-${GOLANGCI_VERSION}
+	@ln -sf golangci-lint-${GOLANGCI_VERSION} bin/golangci-lint
+bin/golangci-lint-${GOLANGCI_VERSION}:
+	@mkdir -p bin
+	curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b ./bin/ v${GOLANGCI_VERSION}
+	@mv bin/golangci-lint $@
+
+.PHONY: lint
+lint: bin/golangci-lint ## Run linter
+	bin/golangci-lint run
+
+.PHONY: fix
+fix: bin/golangci-lint ## Fix lint violations
+	bin/golangci-lint run --fix
+
+# Add custom targets here
+-include custom.mk
+
+.PHONY: list
+list: ## List all make targets
+	@${MAKE} -pRrn : -f $(MAKEFILE_LIST) 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | egrep -v -e '^[^[:alnum:]]' -e '^$@$$' | sort
+
+.PHONY: help
+.DEFAULT_GOAL := help
+help:
+	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+# Variable outputting/exporting rules
+var-%: ; @echo $($*)
+varexport-%: ; @echo $*=$($*)

vendor/github.com/spf13/viper/README.md

@@ -2,6 +2,10 @@
 
 Go configuration with fangs!
 
+[![Actions](https://github.com/spf13/viper/workflows/CI/badge.svg)](https://github.com/spf13/viper)
+[![Join the chat at https://gitter.im/spf13/viper](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/spf13/viper?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![GoDoc](https://godoc.org/github.com/spf13/viper?status.svg)](https://godoc.org/github.com/spf13/viper)
+
 Many Go projects are built using Viper including:
 
 * [Hugo](http://gohugo.io)
@@ -12,8 +16,14 @@ Many Go projects are built using Viper including:
 * [BloomApi](https://www.bloomapi.com/)
 * [doctl](https://github.com/digitalocean/doctl)
 * [Clairctl](https://github.com/jgsqware/clairctl)
+* [Mercure](https://mercure.rocks)
 
-[![Build Status](https://travis-ci.org/spf13/viper.svg)](https://travis-ci.org/spf13/viper) [![Join the chat at https://gitter.im/spf13/viper](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/spf13/viper?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![GoDoc](https://godoc.org/github.com/spf13/viper?status.svg)](https://godoc.org/github.com/spf13/viper)
+
+## Install
+
+```console
+go get github.com/spf13/viper
+```
 
 
 ## What is Viper?
@@ -23,7 +33,7 @@ to work within an application, and can handle all types of configuration needs
 and formats. It supports:
 
 * setting defaults
-* reading from JSON, TOML, YAML, HCL, and Java properties config files
+* reading from JSON, TOML, YAML, HCL, envfile and Java properties config files
 * live watching and re-reading of config files (optional)
 * reading from environment variables
 * reading from remote config systems (etcd or Consul), and watching changes
@@ -31,8 +41,8 @@ and formats. It supports:
 * reading from buffer
 * setting explicit values
 
-Viper can be thought of as a registry for all of your applications
+Viper can be thought of as a registry for all of your applications configuration needs.
-configuration needs.
+
 
 ## Why Viper?
 
@@ -42,34 +52,31 @@ Viper is here to help with that.
 
 Viper does the following for you:
 
-1. Find, load, and unmarshal a configuration file in JSON, TOML, YAML, HCL, or Java properties formats.
+1. Find, load, and unmarshal a configuration file in JSON, TOML, YAML, HCL, INI, envfile or Java properties formats.
-2. Provide a mechanism to set default values for your different
+2. Provide a mechanism to set default values for your different configuration options.
-   configuration options.
+3. Provide a mechanism to set override values for options specified through command line flags.
-3. Provide a mechanism to set override values for options specified through
+4. Provide an alias system to easily rename parameters without breaking existing code.
-   command line flags.
+5. Make it easy to tell the difference between when a user has provided a command line or config file which is the same as the default.
-4. Provide an alias system to easily rename parameters without breaking existing
-   code.
-5. Make it easy to tell the difference between when a user has provided a
-   command line or config file which is the same as the default.
 
-Viper uses the following precedence order. Each item takes precedence over the
+Viper uses the following precedence order. Each item takes precedence over the item below it:
-item below it:
 
- * explicit call to Set
+ * explicit call to `Set`
  * flag
  * env
  * config
  * key/value store
  * default
 
-Viper configuration keys are case insensitive.
+**Important:** Viper configuration keys are case insensitive.
+There are ongoing discussions about making that optional.
+
 
 ## Putting Values into Viper
 
 ### Establishing Defaults
 
 A good configuration system will support default values. A default value is not
-required for a key, but it’s useful in the event that a key hasn’t been set via
+required for a key, but it’s useful in the event that a key hasn't been set via
 config file, environment variable, remote configuration or flag.
 
 Examples:
@@ -83,7 +90,7 @@ viper.SetDefault("Taxonomies", map[string]string{"tag": "tags", "category": "cat
 ### Reading Config Files
 
 Viper requires minimal configuration so it knows where to look for config files.
-Viper supports JSON, TOML, YAML, HCL, and Java Properties files. Viper can search multiple paths, but
+Viper supports JSON, TOML, YAML, HCL, INI, envfile and Java Properties files. Viper can search multiple paths, but
 currently a single Viper instance only supports a single configuration file.
 Viper does not default to any configuration search paths leaving defaults decision
 to an application.
@@ -94,6 +101,7 @@ where a configuration file is expected.
 
 ```go
 viper.SetConfigName("config") // name of config file (without extension)
+viper.SetConfigType("yaml") // REQUIRED if the config file does not have the extension in the name
 viper.AddConfigPath("/etc/appname/")   // path to look for the config file in
 viper.AddConfigPath("$HOME/.appname")  // call multiple times to add many search paths
 viper.AddConfigPath(".")               // optionally look for config in the working directory
@@ -103,6 +111,44 @@ if err != nil { // Handle errors reading the config file
 }
 ```
 
+You can handle the specific case where no config file is found like this:
+
+```go
+if err := viper.ReadInConfig(); err != nil {
+    if _, ok := err.(viper.ConfigFileNotFoundError); ok {
+        // Config file not found; ignore error if desired
+    } else {
+        // Config file was found but another error was produced
+    }
+}
+
+// Config file found and successfully parsed
+```
+
+*NOTE [since 1.6]:* You can also have a file without an extension and specify the format programmaticaly. For those configuration files that lie in the home of the user without any extension like `.bashrc`
+
+### Writing Config Files
+
+Reading from config files is useful, but at times you want to store all modifications made at run time.
+For that, a bunch of commands are available, each with its own purpose:
+
+* WriteConfig - writes the current viper configuration to the predefined path, if exists. Errors if no predefined path. Will overwrite the current config file, if it exists.
+* SafeWriteConfig - writes the current viper configuration to the predefined path. Errors if no predefined path. Will not overwrite the current config file, if it exists.
+* WriteConfigAs - writes the current viper configuration to the given filepath. Will overwrite the given file, if it exists.
+* SafeWriteConfigAs - writes the current viper configuration to the given filepath. Will not overwrite the given file, if it exists.
+
+As a rule of the thumb, everything marked with safe won't overwrite any file, but just create if not existent, whilst the default behavior is to create or truncate.
+
+A small examples section:
+
+```go
+viper.WriteConfig() // writes current config to predefined path set by 'viper.AddConfigPath()' and 'viper.SetConfigName'
+viper.SafeWriteConfig()
+viper.WriteConfigAs("/path/to/my/.config")
+viper.SafeWriteConfigAs("/path/to/my/.config") // will error since it has already been written
+viper.SafeWriteConfigAs("/path/to/my/.other_config")
+```
+
 ### Watching and re-reading config files
 
 Viper supports the ability to have your application live read a config file while running.
@@ -186,7 +232,7 @@ with ENV:
  * `BindEnv(string...) : error`
  * `SetEnvPrefix(string)`
  * `SetEnvKeyReplacer(string...) *strings.Replacer`
-  * `AllowEmptyEnvVar(bool)`
+ * `AllowEmptyEnv(bool)`
 
 _When working with ENV variables, it’s important to recognize that Viper
 treats ENV variables as case sensitive._
@@ -199,9 +245,9 @@ prefix.
 `BindEnv` takes one or two parameters. The first parameter is the key name, the
 second is the name of the environment variable. The name of the environment
 variable is case sensitive. If the ENV variable name is not provided, then
-Viper will automatically assume that the key name matches the ENV variable name,
+Viper will automatically assume that the ENV variable matches the following format: prefix + "_" + the key name in ALL CAPS. When you explicitly provide the ENV variable name (the second parameter),
-but the ENV variable is IN ALL CAPS. When you explicitly provide the ENV
+it **does not** automatically add the prefix. For example if the second parameter is "id",
-variable name, it **does not** automatically add the prefix.
+Viper will look for the ENV variable "ID".
 
 One important thing to recognize when working with ENV variables is that the
 value will be read each time it is accessed. Viper does not fix the value when
@@ -218,6 +264,9 @@ keys to an extent. This is useful if you want to use `-` or something in your
 `Get()` calls, but want your environmental variables to use `_` delimiters. An
 example of using it can be found in `viper_test.go`.
 
+Alternatively, you can use `EnvKeyReplacer` with `NewWithOptions` factory function.
+Unlike `SetEnvKeyReplacer`, it accepts a `StringReplacer` interface allowing you to write custom string replacing logic.
+
 By default empty environment variables are considered unset and will fall back to
 the next configuration source. To treat empty environment variables as set, use
 the `AllowEmptyEnv` method.
@@ -346,7 +395,7 @@ package:
 
 `import _ "github.com/spf13/viper/remote"`
 
-Viper will read a config string (as JSON, TOML, YAML or HCL) retrieved from a path
+Viper will read a config string (as JSON, TOML, YAML, HCL or envfile) retrieved from a path
 in a Key/Value store such as etcd or Consul.  These values take precedence over
 default values, but are overridden by configuration values retrieved from disk,
 flags, or environment variables.
@@ -381,7 +430,7 @@ how to use Consul.
 #### etcd
 ```go
 viper.AddRemoteProvider("etcd", "http://127.0.0.1:4001","/config/hugo.json")
-viper.SetConfigType("json") // because there is no file extension in a stream of bytes, supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop"
+viper.SetConfigType("json") // because there is no file extension in a stream of bytes, supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop", "env", "dotenv"
 err := viper.ReadRemoteConfig()
 ```
 
@@ -409,7 +458,7 @@ fmt.Println(viper.Get("hostname")) // myhostname.com
 
 ```go
 viper.AddSecureRemoteProvider("etcd","http://127.0.0.1:4001","/config/hugo.json","/etc/secrets/mykeyring.gpg")
-viper.SetConfigType("json") // because there is no file extension in a stream of bytes,  supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop"
+viper.SetConfigType("json") // because there is no file extension in a stream of bytes,  supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop", "env", "dotenv"
 err := viper.ReadRemoteConfig()
 ```
 
@@ -420,7 +469,7 @@ err := viper.ReadRemoteConfig()
 var runtime_viper = viper.New()
 
 runtime_viper.AddRemoteProvider("etcd", "http://127.0.0.1:4001", "/config/hugo.yml")
-runtime_viper.SetConfigType("yaml") // because there is no file extension in a stream of bytes, supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop"
+runtime_viper.SetConfigType("yaml") // because there is no file extension in a stream of bytes, supported extensions are "json", "toml", "yaml", "yml", "properties", "props", "prop", "env", "dotenv"
 
 // read from remote config the first time.
 err := runtime_viper.ReadRemoteConfig()
@@ -456,6 +505,7 @@ The following functions and methods exist:
  * `GetBool(key string) : bool`
  * `GetFloat64(key string) : float64`
  * `GetInt(key string) : int`
+ * `GetIntSlice(key string) : []int`
  * `GetString(key string) : string`
  * `GetStringMap(key string) : map[string]interface{}`
  * `GetStringMapString(key string) : map[string]string`
@@ -611,15 +661,74 @@ type config struct {
 
 var C config
 
-err := Unmarshal(&C)
+err := viper.Unmarshal(&C)
 if err != nil {
 	t.Fatalf("unable to decode into struct, %v", err)
 }
 ```
 
+If you want to unmarshal configuration where the keys themselves contain dot (the default key delimiter),
+you have to change the delimiter:
+
+```go
+v := viper.NewWithOptions(viper.KeyDelimiter("::"))
+
+v.SetDefault("chart::values", map[string]interface{}{
+    "ingress": map[string]interface{}{
+        "annotations": map[string]interface{}{
+            "traefik.frontend.rule.type":                 "PathPrefix",
+            "traefik.ingress.kubernetes.io/ssl-redirect": "true",
+        },
+    },
+})
+
+type config struct {
+	Chart struct{
+        Values map[string]interface{}
+    }
+}
+
+var C config
+
+v.Unmarshal(&C)
+```
+
+Viper also supports unmarshaling into embedded structs:
+
+```go
+/*
+Example config:
+
+module:
+    enabled: true
+    token: 89h3f98hbwf987h3f98wenf89ehf
+*/
+type config struct {
+	Module struct {
+		Enabled bool
+
+		moduleConfig `mapstructure:",squash"`
+	}
+}
+
+// moduleConfig could be in a module specific package
+type moduleConfig struct {
+	Token string
+}
+
+var C config
+
+err := viper.Unmarshal(&C)
+if err != nil {
+	t.Fatalf("unable to decode into struct, %v", err)
+}
+```
+
+Viper uses [github.com/mitchellh/mapstructure](https://github.com/mitchellh/mapstructure) under the hood for unmarshaling values which uses `mapstructure` tags by default.
+
 ### Marshalling to string
 
-You may need to marhsal all the settings held in viper into a string rather than write them to a file. 
+You may need to marshal all the settings held in viper into a string rather than write them to a file. 
 You can use your favorite format's marshaller with the config returned by `AllSettings()`.
 
 ```go
@@ -632,7 +741,7 @@ func yamlStringSettings() string {
     c := viper.AllSettings()
     bs, err := yaml.Marshal(c)
     if err != nil {
-        t.Fatalf("unable to marshal config to YAML: %v", err)
+        log.Fatalf("unable to marshal config to YAML: %v", err)
     }
     return string(bs)
 }
@@ -672,13 +781,6 @@ different vipers.
 
 ## Q & A
 
-Q: Why not INI files?
-
-A: Ini files are pretty awful. There’s no standard format, and they are hard to
-validate. Viper is designed to work with JSON, TOML or YAML files. If someone
-really wants to add this feature, I’d be happy to merge it. It’s easy to specify
-which formats your application will permit.
-
 Q: Why is it called “Viper”?
 
 A: Viper is designed to be a [companion](http://en.wikipedia.org/wiki/Viper_(G.I._Joe))

vendor/github.com/spf13/viper/flags.go

@@ -36,7 +36,7 @@ type pflagValue struct {
 	flag *pflag.Flag
 }
 
-// HasChanges returns whether the flag has changes or not.
+// HasChanged returns whether the flag has changes or not.
 func (p pflagValue) HasChanged() bool {
 	return p.flag.Changed
 }

vendor/github.com/spf13/viper/go.mod

@@ -1,24 +1,48 @@
 module github.com/spf13/viper
 
+go 1.12
+
 require (
 	github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6 // indirect
+	github.com/coreos/bbolt v1.3.2 // indirect
 	github.com/coreos/etcd v3.3.10+incompatible // indirect
-	github.com/coreos/go-etcd v2.0.0+incompatible // indirect
 	github.com/coreos/go-semver v0.2.0 // indirect
+	github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e // indirect
+	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/fsnotify/fsnotify v1.4.7
+	github.com/gogo/protobuf v1.2.1 // indirect
+	github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef // indirect
+	github.com/google/btree v1.0.0 // indirect
+	github.com/gorilla/websocket v1.4.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway v1.9.0 // indirect
 	github.com/hashicorp/hcl v1.0.0
-	github.com/magiconair/properties v1.8.0
+	github.com/jonboulle/clockwork v0.1.0 // indirect
+	github.com/magiconair/properties v1.8.1
 	github.com/mitchellh/mapstructure v1.1.2
 	github.com/pelletier/go-toml v1.2.0
+	github.com/prometheus/client_golang v0.9.3 // indirect
+	github.com/smartystreets/goconvey v1.6.4 // indirect
+	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/spf13/afero v1.1.2
 	github.com/spf13/cast v1.3.0
 	github.com/spf13/jwalterweatherman v1.0.0
 	github.com/spf13/pflag v1.0.3
 	github.com/stretchr/testify v1.2.2
-	github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8 // indirect
+	github.com/subosito/gotenv v1.2.0
+	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
+	github.com/ugorji/go v1.1.4 // indirect
+	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
 	github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77
-	golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9 // indirect
+	go.etcd.io/bbolt v1.3.2 // indirect
-	golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a // indirect
+	go.uber.org/atomic v1.4.0 // indirect
-	golang.org/x/text v0.3.0 // indirect
+	go.uber.org/multierr v1.1.0 // indirect
-	gopkg.in/yaml.v2 v2.2.2
+	go.uber.org/zap v1.10.0 // indirect
+	golang.org/x/net v0.0.0-20190522155817-f3200d17e092 // indirect
+	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
+	google.golang.org/grpc v1.21.0 // indirect
+	gopkg.in/ini.v1 v1.51.0
+	gopkg.in/yaml.v2 v2.2.4
 )

vendor/github.com/spf13/viper/go.sum

@@ -1,19 +1,117 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
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 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
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+github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
+github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
+github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
+github.com/sirupsen/logrus v1.2.0 h1:juTguoYk5qI21pwyTXY3B3Y5cOTH3ZUyZCg1v/mihuo=
+github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
+github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
+github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
+github.com/smartystreets/goconvey v1.6.4 h1:fv0U8FUIMPNf1L9lnHLvLhgicrIVChEkdzIKYqbNC9s=
+github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
+github.com/soheilhy/cmux v0.1.4 h1:0HKaf1o97UwFjHH9o5XsHUOF+tqmdA7KEzXLpiyaw0E=
+github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
+github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spf13/afero v1.1.2 h1:m8/z1t7/fwjysjQRYbP0RD+bUIF/8tJwPdEZsI83ACI=
 github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
 github.com/spf13/cast v1.3.0 h1:oget//CVOEoFewqQxwr0Ej5yjygnqGkvggSE/gB35Q8=
@@ -22,14 +120,73 @@ github.com/spf13/jwalterweatherman v1.0.0 h1:XHEdyB+EcvlqZamSM4ZOMGlc93t6AcsBEu9
 github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
 github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
+github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
+github.com/subosito/gotenv v1.2.0 h1:Slr1R9HxAlEKefgq5jn9U+DnETlIUa6HfgEzj0g5d7s=
+github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
+github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 h1:LnC5Kc/wtumK+WB441p7ynQJzVuNRJiqddSIE3IlSEQ=
+github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
+github.com/ugorji/go v1.1.4 h1:j4s+tAvLfL3bZyefP2SEWmhBzmuIlH/eqNuPdFPgngw=
+github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
+github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 h1:eY9dn8+vbi4tKz5Qo6v2eYzo7kUS51QINcR5jNpbZS8=
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+github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77 h1:ESFSdwYZvkeru3RtdrYueztKhOBCSAAzS4Gf+k0tEow=
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
-golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+go.etcd.io/bbolt v1.3.2 h1:Z/90sZLPOeCy2PwprqkFa25PdkusRzaj9P8zm/KNyvk=
-golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a h1:1n5lsVfiQW3yfsRGu98756EH1YthsFqr/5mxHduZW2A=
+go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
-golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+go.uber.org/atomic v1.4.0 h1:cxzIVoETapQEqDhQu3QfnvXAV4AlzcvUCxkVUFw3+EU=
+go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
+go.uber.org/multierr v1.1.0 h1:HoEmRHQPVSqub6w2z2d2EOVs2fjyFRGyofhKuyDq0QI=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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+gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
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vendor/github.com/spf13/viper/util.go

@@ -114,11 +114,11 @@ func absPathify(inPath string) string {
 	return ""
 }
 
-// Check if File / Directory Exists
+// Check if file Exists
 func exists(fs afero.Fs, path string) (bool, error) {
-	_, err := fs.Stat(path)
+	stat, err := fs.Stat(path)
 	if err == nil {
-		return true, nil
+		return !stat.IsDir(), nil
 	}
 	if os.IsNotExist(err) {
 		return false, nil

vendor/github.com/spf13/viper/viper.go

@@ -3,7 +3,7 @@
 // Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
-// Viper is a application configuration system.
+// Viper is an application configuration system.
 // It believes that applications can be configured a variety of ways
 // via flags, ENVIRONMENT variables, configuration files retrieved
 // from the file system, or a remote key/value store.
@@ -23,6 +23,7 @@ import (
 	"bytes"
 	"encoding/csv"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"log"
@@ -33,18 +34,19 @@ import (
 	"sync"
 	"time"
 
-	yaml "gopkg.in/yaml.v2"
-
 	"github.com/fsnotify/fsnotify"
 	"github.com/hashicorp/hcl"
 	"github.com/hashicorp/hcl/hcl/printer"
 	"github.com/magiconair/properties"
 	"github.com/mitchellh/mapstructure"
-	toml "github.com/pelletier/go-toml"
+	"github.com/pelletier/go-toml"
 	"github.com/spf13/afero"
 	"github.com/spf13/cast"
 	jww "github.com/spf13/jwalterweatherman"
 	"github.com/spf13/pflag"
+	"github.com/subosito/gotenv"
+	"gopkg.in/ini.v1"
+	"gopkg.in/yaml.v2"
 )
 
 // ConfigMarshalError happens when failing to marshal the configuration.
@@ -114,6 +116,14 @@ func (fnfe ConfigFileNotFoundError) Error() string {
 	return fmt.Sprintf("Config File %q Not Found in %q", fnfe.name, fnfe.locations)
 }
 
+// ConfigFileAlreadyExistsError denotes failure to write new configuration file.
+type ConfigFileAlreadyExistsError string
+
+// Error returns the formatted error when configuration already exists.
+func (faee ConfigFileAlreadyExistsError) Error() string {
+	return fmt.Sprintf("Config File %q Already Exists", string(faee))
+}
+
 // A DecoderConfigOption can be passed to viper.Unmarshal to configure
 // mapstructure.DecoderConfig options
 type DecoderConfigOption func(*mapstructure.DecoderConfig)
@@ -183,10 +193,11 @@ type Viper struct {
 	configName        string
 	configFile        string
 	configType        string
+	configPermissions os.FileMode
 	envPrefix         string
 
 	automaticEnvApplied bool
-	envKeyReplacer      *strings.Replacer
+	envKeyReplacer      StringReplacer
 	allowEmptyEnv       bool
 
 	config         map[string]interface{}
@@ -210,6 +221,7 @@ func New() *Viper {
 	v := new(Viper)
 	v.keyDelim = "."
 	v.configName = "config"
+	v.configPermissions = os.FileMode(0644)
 	v.fs = afero.NewOsFs()
 	v.config = make(map[string]interface{})
 	v.override = make(map[string]interface{})
@@ -223,12 +235,58 @@ func New() *Viper {
 	return v
 }
 
-// Intended for testing, will reset all to default settings.
+// Option configures Viper using the functional options paradigm popularized by Rob Pike and Dave Cheney.
+// If you're unfamiliar with this style,
+// see https://commandcenter.blogspot.com/2014/01/self-referential-functions-and-design.html and
+// https://dave.cheney.net/2014/10/17/functional-options-for-friendly-apis.
+type Option interface {
+	apply(v *Viper)
+}
+
+type optionFunc func(v *Viper)
+
+func (fn optionFunc) apply(v *Viper) {
+	fn(v)
+}
+
+// KeyDelimiter sets the delimiter used for determining key parts.
+// By default it's value is ".".
+func KeyDelimiter(d string) Option {
+	return optionFunc(func(v *Viper) {
+		v.keyDelim = d
+	})
+}
+
+// StringReplacer applies a set of replacements to a string.
+type StringReplacer interface {
+	// Replace returns a copy of s with all replacements performed.
+	Replace(s string) string
+}
+
+// EnvKeyReplacer sets a replacer used for mapping environment variables to internal keys.
+func EnvKeyReplacer(r StringReplacer) Option {
+	return optionFunc(func(v *Viper) {
+		v.envKeyReplacer = r
+	})
+}
+
+// NewWithOptions creates a new Viper instance.
+func NewWithOptions(opts ...Option) *Viper {
+	v := New()
+
+	for _, opt := range opts {
+		opt.apply(v)
+	}
+
+	return v
+}
+
+// Reset is intended for testing, will reset all to default settings.
 // In the public interface for the viper package so applications
 // can use it in their testing as well.
 func Reset() {
 	v = New()
-	SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl"}
+	SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl", "dotenv", "env", "ini"}
 	SupportedRemoteProviders = []string{"etcd", "consul"}
 }
 
@@ -267,7 +325,7 @@ type RemoteProvider interface {
 }
 
 // SupportedExts are universally supported extensions.
-var SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl"}
+var SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl", "dotenv", "env", "ini"}
 
 // SupportedRemoteProviders are universally supported remote providers.
 var SupportedRemoteProviders = []string{"etcd", "consul"}
@@ -292,6 +350,7 @@ func (v *Viper) WatchConfig() {
 		filename, err := v.getConfigFile()
 		if err != nil {
 			log.Printf("error: %v\n", err)
+			initWG.Done()
 			return
 		}
 
@@ -341,7 +400,7 @@ func (v *Viper) WatchConfig() {
 			}
 		}()
 		watcher.Add(configDir)
-		initWG.Done()   // done initalizing the watch in this go routine, so the parent routine can move on...
+		initWG.Done()   // done initializing the watch in this go routine, so the parent routine can move on...
 		eventsWG.Wait() // now, wait for event loop to end in this go-routine...
 	}()
 	initWG.Wait() // make sure that the go routine above fully ended before returning
@@ -666,7 +725,7 @@ func GetViper() *Viper {
 func Get(key string) interface{} { return v.Get(key) }
 func (v *Viper) Get(key string) interface{} {
 	lcaseKey := strings.ToLower(key)
-	val := v.find(lcaseKey)
+	val := v.find(lcaseKey, true)
 	if val == nil {
 		return nil
 	}
@@ -687,6 +746,12 @@ func (v *Viper) Get(key string) interface{} {
 			return cast.ToString(val)
 		case int32, int16, int8, int:
 			return cast.ToInt(val)
+		case uint:
+			return cast.ToUint(val)
+		case uint32:
+			return cast.ToUint32(val)
+		case uint64:
+			return cast.ToUint64(val)
 		case int64:
 			return cast.ToInt64(val)
 		case float64, float32:
@@ -697,6 +762,8 @@ func (v *Viper) Get(key string) interface{} {
 			return cast.ToDuration(val)
 		case []string:
 			return cast.ToStringSlice(val)
+		case []int:
+			return cast.ToIntSlice(val)
 		}
 	}
 
@@ -750,6 +817,24 @@ func (v *Viper) GetInt64(key string) int64 {
 	return cast.ToInt64(v.Get(key))
 }
 
+// GetUint returns the value associated with the key as an unsigned integer.
+func GetUint(key string) uint { return v.GetUint(key) }
+func (v *Viper) GetUint(key string) uint {
+	return cast.ToUint(v.Get(key))
+}
+
+// GetUint32 returns the value associated with the key as an unsigned integer.
+func GetUint32(key string) uint32 { return v.GetUint32(key) }
+func (v *Viper) GetUint32(key string) uint32 {
+	return cast.ToUint32(v.Get(key))
+}
+
+// GetUint64 returns the value associated with the key as an unsigned integer.
+func GetUint64(key string) uint64 { return v.GetUint64(key) }
+func (v *Viper) GetUint64(key string) uint64 {
+	return cast.ToUint64(v.Get(key))
+}
+
 // GetFloat64 returns the value associated with the key as a float64.
 func GetFloat64(key string) float64 { return v.GetFloat64(key) }
 func (v *Viper) GetFloat64(key string) float64 {
@@ -768,6 +853,12 @@ func (v *Viper) GetDuration(key string) time.Duration {
 	return cast.ToDuration(v.Get(key))
 }
 
+// GetIntSlice returns the value associated with the key as a slice of int values.
+func GetIntSlice(key string) []int { return v.GetIntSlice(key) }
+func (v *Viper) GetIntSlice(key string) []int {
+	return cast.ToIntSlice(v.Get(key))
+}
+
 // GetStringSlice returns the value associated with the key as a slice of strings.
 func GetStringSlice(key string) []string { return v.GetStringSlice(key) }
 func (v *Viper) GetStringSlice(key string) []string {
@@ -858,8 +949,11 @@ func decode(input interface{}, config *mapstructure.DecoderConfig) error {
 
 // UnmarshalExact unmarshals the config into a Struct, erroring if a field is nonexistent
 // in the destination struct.
-func (v *Viper) UnmarshalExact(rawVal interface{}) error {
+func UnmarshalExact(rawVal interface{}, opts ...DecoderConfigOption) error {
-	config := defaultDecoderConfig(rawVal)
+	return v.UnmarshalExact(rawVal, opts...)
+}
+func (v *Viper) UnmarshalExact(rawVal interface{}, opts ...DecoderConfigOption) error {
+	config := defaultDecoderConfig(rawVal, opts...)
 	config.ErrorUnused = true
 
 	err := decode(v.AllSettings(), config)
@@ -924,7 +1018,7 @@ func BindEnv(input ...string) error { return v.BindEnv(input...) }
 func (v *Viper) BindEnv(input ...string) error {
 	var key, envkey string
 	if len(input) == 0 {
-		return fmt.Errorf("BindEnv missing key to bind to")
+		return fmt.Errorf("missing key to bind to")
 	}
 
 	key = strings.ToLower(input[0])
@@ -941,12 +1035,15 @@ func (v *Viper) BindEnv(input ...string) error {
 }
 
 // Given a key, find the value.
-// Viper will check in the following order:
+//
-// flag, env, config file, key/value store, default.
 // Viper will check to see if an alias exists first.
+// Viper will then check in the following order:
+// flag, env, config file, key/value store.
+// Lastly, if no value was found and flagDefault is true, and if the key
+// corresponds to a flag, the flag's default value is returned.
+//
 // Note: this assumes a lower-cased key given.
-func (v *Viper) find(lcaseKey string) interface{} {
+func (v *Viper) find(lcaseKey string, flagDefault bool) interface{} {
-
 	var (
 		val    interface{}
 		exists bool
@@ -986,6 +1083,11 @@ func (v *Viper) find(lcaseKey string) interface{} {
 			s = strings.TrimSuffix(s, "]")
 			res, _ := readAsCSV(s)
 			return res
+		case "intSlice":
+			s := strings.TrimPrefix(flag.ValueString(), "[")
+			s = strings.TrimSuffix(s, "]")
+			res, _ := readAsCSV(s)
+			return cast.ToIntSlice(res)
 		default:
 			return flag.ValueString()
 		}
@@ -1042,8 +1144,9 @@ func (v *Viper) find(lcaseKey string) interface{} {
 		return nil
 	}
 
-	// last chance: if no other value is returned and a flag does exist for the value,
+	if flagDefault {
-	// get the flag's value even if the flag's value has not changed
+		// last chance: if no value is found and a flag does exist for the key,
+		// get the flag's default value even if the flag's value has not been set.
 		if flag, exists := v.pflags[lcaseKey]; exists {
 			switch flag.ValueType() {
 			case "int", "int8", "int16", "int32", "int64":
@@ -1055,11 +1158,17 @@ func (v *Viper) find(lcaseKey string) interface{} {
 				s = strings.TrimSuffix(s, "]")
 				res, _ := readAsCSV(s)
 				return res
+			case "intSlice":
+				s := strings.TrimPrefix(flag.ValueString(), "[")
+				s = strings.TrimSuffix(s, "]")
+				res, _ := readAsCSV(s)
+				return cast.ToIntSlice(res)
 			default:
 				return flag.ValueString()
 			}
 		}
 		// last item, no need to check shadowing
+	}
 
 	return nil
 }
@@ -1078,7 +1187,7 @@ func readAsCSV(val string) ([]string, error) {
 func IsSet(key string) bool { return v.IsSet(key) }
 func (v *Viper) IsSet(key string) bool {
 	lcaseKey := strings.ToLower(key)
-	val := v.find(lcaseKey)
+	val := v.find(lcaseKey, false)
 	return val != nil
 }
 
@@ -1097,8 +1206,8 @@ func (v *Viper) SetEnvKeyReplacer(r *strings.Replacer) {
 	v.envKeyReplacer = r
 }
 
-// Aliases provide another accessor for the same key.
+// RegisterAlias creates an alias that provides another accessor for the same key.
-// This enables one to change a name without breaking the application
+// This enables one to change a name without breaking the application.
 func RegisterAlias(alias string, key string) { v.RegisterAlias(alias, key) }
 func (v *Viper) RegisterAlias(alias string, key string) {
 	v.registerAlias(alias, strings.ToLower(key))
@@ -1285,11 +1394,10 @@ func (v *Viper) WriteConfig() error {
 // SafeWriteConfig writes current configuration to file only if the file does not exist.
 func SafeWriteConfig() error { return v.SafeWriteConfig() }
 func (v *Viper) SafeWriteConfig() error {
-	filename, err := v.getConfigFile()
+	if len(v.configPaths) < 1 {
-	if err != nil {
+		return errors.New("missing configuration for 'configPath'")
-		return err
 	}
-	return v.writeConfig(filename, false)
+	return v.SafeWriteConfigAs(filepath.Join(v.configPaths[0], v.configName+"."+v.configType))
 }
 
 // WriteConfigAs writes current configuration to a given filename.
@@ -1301,15 +1409,18 @@ func (v *Viper) WriteConfigAs(filename string) error {
 // SafeWriteConfigAs writes current configuration to a given filename if it does not exist.
 func SafeWriteConfigAs(filename string) error { return v.SafeWriteConfigAs(filename) }
 func (v *Viper) SafeWriteConfigAs(filename string) error {
+	alreadyExists, err := afero.Exists(v.fs, filename)
+	if alreadyExists && err == nil {
+		return ConfigFileAlreadyExistsError(filename)
+	}
 	return v.writeConfig(filename, false)
 }
 
-func writeConfig(filename string, force bool) error { return v.writeConfig(filename, force) }
 func (v *Viper) writeConfig(filename string, force bool) error {
 	jww.INFO.Println("Attempting to write configuration to file.")
 	ext := filepath.Ext(filename)
 	if len(ext) <= 1 {
-		return fmt.Errorf("Filename: %s requires valid extension.", filename)
+		return fmt.Errorf("filename: %s requires valid extension", filename)
 	}
 	configType := ext[1:]
 	if !stringInSlice(configType, SupportedExts) {
@@ -1318,21 +1429,21 @@ func (v *Viper) writeConfig(filename string, force bool) error {
 	if v.config == nil {
 		v.config = make(map[string]interface{})
 	}
-	var flags int
+	flags := os.O_CREATE | os.O_TRUNC | os.O_WRONLY
-	if force == true {
+	if !force {
-		flags = os.O_CREATE | os.O_TRUNC | os.O_WRONLY
+		flags |= os.O_EXCL
-	} else {
-		if _, err := os.Stat(filename); os.IsNotExist(err) {
-			flags = os.O_WRONLY
-		} else {
-			return fmt.Errorf("File: %s exists. Use WriteConfig to overwrite.", filename)
 	}
-	}
+	f, err := v.fs.OpenFile(filename, flags, v.configPermissions)
-	f, err := v.fs.OpenFile(filename, flags, os.FileMode(0644))
 	if err != nil {
 		return err
 	}
-	return v.marshalWriter(f, configType)
+	defer f.Close()
+
+	if err := v.marshalWriter(f, configType); err != nil {
+		return err
+	}
+
+	return f.Sync()
 }
 
 // Unmarshal a Reader into a map.
@@ -1356,7 +1467,7 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
 		}
 
 	case "hcl":
-		obj, err := hcl.Parse(string(buf.Bytes()))
+		obj, err := hcl.Parse(buf.String())
 		if err != nil {
 			return ConfigParseError{err}
 		}
@@ -1374,6 +1485,15 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
 			c[k] = v
 		}
 
+	case "dotenv", "env":
+		env, err := gotenv.StrictParse(buf)
+		if err != nil {
+			return ConfigParseError{err}
+		}
+		for k, v := range env {
+			c[k] = v
+		}
+
 	case "properties", "props", "prop":
 		v.properties = properties.NewProperties()
 		var err error
@@ -1389,6 +1509,23 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
 			// set innermost value
 			deepestMap[lastKey] = value
 		}
+
+	case "ini":
+		cfg := ini.Empty()
+		err := cfg.Append(buf.Bytes())
+		if err != nil {
+			return ConfigParseError{err}
+		}
+		sections := cfg.Sections()
+		for i := 0; i < len(sections); i++ {
+			section := sections[i]
+			keys := section.Keys()
+			for j := 0; j < len(keys); j++ {
+				key := keys[j]
+				value := cfg.Section(section.Name()).Key(key.Name()).String()
+				c[section.Name()+"."+key.Name()] = value
+			}
+		}
 	}
 
 	insensitiviseMap(c)
@@ -1396,9 +1533,6 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
 }
 
 // Marshal a map into Writer.
-func marshalWriter(f afero.File, configType string) error {
-	return v.marshalWriter(f, configType)
-}
 func (v *Viper) marshalWriter(f afero.File, configType string) error {
 	c := v.AllSettings()
 	switch configType {
@@ -1414,6 +1548,9 @@ func (v *Viper) marshalWriter(f afero.File, configType string) error {
 
 	case "hcl":
 		b, err := json.Marshal(c)
+		if err != nil {
+			return ConfigMarshalError{err}
+		}
 		ast, err := hcl.Parse(string(b))
 		if err != nil {
 			return ConfigMarshalError{err}
@@ -1439,6 +1576,18 @@ func (v *Viper) marshalWriter(f afero.File, configType string) error {
 			return ConfigMarshalError{err}
 		}
 
+	case "dotenv", "env":
+		lines := []string{}
+		for _, key := range v.AllKeys() {
+			envName := strings.ToUpper(strings.Replace(key, ".", "_", -1))
+			val := v.Get(key)
+			lines = append(lines, fmt.Sprintf("%v=%v", envName, val))
+		}
+		s := strings.Join(lines, "\n")
+		if _, err := f.WriteString(s); err != nil {
+			return ConfigMarshalError{err}
+		}
+
 	case "toml":
 		t, err := toml.TreeFromMap(c)
 		if err != nil {
@@ -1457,6 +1606,22 @@ func (v *Viper) marshalWriter(f afero.File, configType string) error {
 		if _, err = f.WriteString(string(b)); err != nil {
 			return ConfigMarshalError{err}
 		}
+
+	case "ini":
+		keys := v.AllKeys()
+		cfg := ini.Empty()
+		ini.PrettyFormat = false
+		for i := 0; i < len(keys); i++ {
+			key := keys[i]
+			lastSep := strings.LastIndex(key, ".")
+			sectionName := key[:(lastSep)]
+			keyName := key[(lastSep + 1):]
+			if sectionName == "default" {
+				sectionName = ""
+			}
+			cfg.Section(sectionName).Key(keyName).SetValue(Get(key).(string))
+		}
+		cfg.WriteTo(f)
 	}
 	return nil
 }
@@ -1639,7 +1804,7 @@ func (v *Viper) watchRemoteConfig(provider RemoteProvider) (map[string]interface
 }
 
 // AllKeys returns all keys holding a value, regardless of where they are set.
-// Nested keys are returned with a v.keyDelim (= ".") separator
+// Nested keys are returned with a v.keyDelim separator
 func AllKeys() []string { return v.AllKeys() }
 func (v *Viper) AllKeys() []string {
 	m := map[string]bool{}
@@ -1653,7 +1818,7 @@ func (v *Viper) AllKeys() []string {
 	m = v.flattenAndMergeMap(m, v.defaults, "")
 
 	// convert set of paths to list
-	a := []string{}
+	a := make([]string, 0, len(m))
 	for x := range m {
 		a = append(a, x)
 	}
@@ -1662,7 +1827,7 @@ func (v *Viper) AllKeys() []string {
 
 // flattenAndMergeMap recursively flattens the given map into a map[string]bool
 // of key paths (used as a set, easier to manipulate than a []string):
-// - each path is merged into a single key string, delimited with v.keyDelim (= ".")
+// - each path is merged into a single key string, delimited with v.keyDelim
 // - if a path is shadowed by an earlier value in the initial shadow map,
 //   it is skipped.
 // The resulting set of paths is merged to the given shadow set at the same time.
@@ -1702,7 +1867,7 @@ func (v *Viper) flattenAndMergeMap(shadow map[string]bool, m map[string]interfac
 func (v *Viper) mergeFlatMap(shadow map[string]bool, m map[string]interface{}) map[string]bool {
 	// scan keys
 outer:
-	for k, _ := range m {
+	for k := range m {
 		path := strings.Split(k, v.keyDelim)
 		// scan intermediate paths
 		var parentKey string
@@ -1765,6 +1930,12 @@ func (v *Viper) SetConfigType(in string) {
 	}
 }
 
+// SetConfigPermissions sets the permissions for the config file.
+func SetConfigPermissions(perm os.FileMode) { v.SetConfigPermissions(perm) }
+func (v *Viper) SetConfigPermissions(perm os.FileMode) {
+	v.configPermissions = perm.Perm()
+}
+
 func (v *Viper) getConfigType() string {
 	if v.configType != "" {
 		return v.configType
@@ -1805,6 +1976,12 @@ func (v *Viper) searchInPath(in string) (filename string) {
 		}
 	}
 
+	if v.configType != "" {
+		if b, _ := exists(v.fs, filepath.Join(in, v.configName)); b {
+			return filepath.Join(in, v.configName)
+		}
+	}
+
 	return ""
 }
 

vendor/github.com/subosito/gotenv/.env

@@ -0,0 +1 @@
+HELLO=world

vendor/github.com/subosito/gotenv/.env.invalid

@@ -0,0 +1 @@
+lol$wut

vendor/github.com/subosito/gotenv/.gitignore

@@ -0,0 +1,3 @@
+*.test
+*.out
+annotate.json

vendor/github.com/subosito/gotenv/.travis.yml

@@ -0,0 +1,10 @@
+language: go
+go:
+  - 1.x
+os:
+  - linux
+  - osx
+script:
+  - go test -test.v -coverprofile=coverage.out -covermode=count
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

vendor/github.com/subosito/gotenv/CHANGELOG.md

@@ -0,0 +1,47 @@
+# Changelog
+
+## [1.2.0] - 2019-08-03
+
+### Added
+
+- Add `Must` helper to raise an error as panic. It can be used with `Load` and `OverLoad`.
+- Add more tests to be 100% coverage.
+- Add CHANGELOG
+- Add more OS for the test: OSX and Windows
+
+### Changed
+
+- Reduce complexity and improve source code for having `A+` score in [goreportcard](https://goreportcard.com/report/github.com/subosito/gotenv).
+- Updated README with mentions to all available functions
+
+### Removed
+
+- Remove `ErrFormat`
+- Remove `MustLoad` and `MustOverload`, replaced with `Must` helper.
+
+## [1.1.1] - 2018-06-05
+
+### Changed
+
+- Replace `os.Getenv` with `os.LookupEnv` to ensure that the environment variable is not set, by [radding](https://github.com/radding)
+
+## [1.1.0] - 2017-03-20
+
+### Added
+
+- Supports carriage return in env
+- Handle files with UTF-8 BOM 
+
+### Changed
+
+- Whitespace handling
+
+### Fixed
+
+- Incorrect variable expansion
+- Handling escaped '$' characters
+
+## [1.0.0] - 2014-10-05
+
+First stable release.
+

vendor/github.com/subosito/gotenv/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Alif Rachmawadi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/github.com/subosito/gotenv/README.md

@@ -0,0 +1,131 @@
+# gotenv
+
+[![Build Status](https://travis-ci.org/subosito/gotenv.svg?branch=master)](https://travis-ci.org/subosito/gotenv)
+[![Build status](https://ci.appveyor.com/api/projects/status/wb2e075xkfl0m0v2/branch/master?svg=true)](https://ci.appveyor.com/project/subosito/gotenv/branch/master)
+[![Coverage Status](https://badgen.net/codecov/c/github/subosito/gotenv)](https://codecov.io/gh/subosito/gotenv)
+[![Go Report Card](https://goreportcard.com/badge/github.com/subosito/gotenv)](https://goreportcard.com/report/github.com/subosito/gotenv)
+[![GoDoc](https://godoc.org/github.com/subosito/gotenv?status.svg)](https://godoc.org/github.com/subosito/gotenv)
+
+Load environment variables dynamically in Go.
+
+## Usage
+
+Put the gotenv package on your `import` statement:
+
+```go
+import "github.com/subosito/gotenv"
+```
+
+To modify your app environment variables, `gotenv` expose 2 main functions:
+
+- `gotenv.Load`
+- `gotenv.Apply`
+
+By default, `gotenv.Load` will look for a file called `.env` in the current working directory.
+
+Behind the scene, it will then load `.env` file and export the valid variables to the environment variables. Make sure you call the method as soon as possible to ensure it loads all variables, say, put it on `init()` function.
+
+Once loaded you can use `os.Getenv()` to get the value of the variable.
+
+Let's say you have `.env` file:
+
+```
+APP_ID=1234567
+APP_SECRET=abcdef
+```
+
+Here's the example of your app:
+
+```go
+package main
+
+import (
+	"github.com/subosito/gotenv"
+	"log"
+	"os"
+)
+
+func init() {
+	gotenv.Load()
+}
+
+func main() {
+	log.Println(os.Getenv("APP_ID"))     // "1234567"
+	log.Println(os.Getenv("APP_SECRET")) // "abcdef"
+}
+```
+
+You can also load other than `.env` file if you wish. Just supply filenames when calling `Load()`. It will load them in order and the first value set for a variable will win.:
+
+```go
+gotenv.Load(".env.production", "credentials")
+```
+
+While `gotenv.Load` loads entries from `.env` file, `gotenv.Apply` allows you to use any `io.Reader`:
+
+```go
+gotenv.Apply(strings.NewReader("APP_ID=1234567"))
+
+log.Println(os.Getenv("APP_ID"))
+// Output: "1234567"
+```
+
+Both `gotenv.Load` and `gotenv.Apply` **DO NOT** overrides existing environment variables. If you want to override existing ones, you can see section below.
+
+### Environment Overrides
+
+Besides above functions, `gotenv` also provides another functions that overrides existing:
+
+- `gotenv.OverLoad`
+- `gotenv.OverApply`
+
+
+Here's the example of this overrides behavior:
+
+```go
+os.Setenv("HELLO", "world")
+
+// NOTE: using Apply existing value will be reserved
+gotenv.Apply(strings.NewReader("HELLO=universe"))
+fmt.Println(os.Getenv("HELLO"))
+// Output: "world"
+
+// NOTE: using OverApply existing value will be overridden
+gotenv.OverApply(strings.NewReader("HELLO=universe"))
+fmt.Println(os.Getenv("HELLO"))
+// Output: "universe"
+```
+
+### Throw a Panic
+
+Both `gotenv.Load` and `gotenv.OverLoad` returns an error on something wrong occurred, like your env file is not exist, and so on. To make it easier to use, `gotenv` also provides `gotenv.Must` helper, to let it panic when an error returned.
+
+```go
+err := gotenv.Load(".env-is-not-exist")
+fmt.Println("error", err)
+// error: open .env-is-not-exist: no such file or directory
+
+gotenv.Must(gotenv.Load, ".env-is-not-exist")
+// it will throw a panic
+// panic: open .env-is-not-exist: no such file or directory
+```
+
+### Another Scenario
+
+Just in case you want to parse environment variables from any `io.Reader`, gotenv keeps its `Parse` and `StrictParse` function as public API so you can use that.
+
+```go
+// import "strings"
+
+pairs := gotenv.Parse(strings.NewReader("FOO=test\nBAR=$FOO"))
+// gotenv.Env{"FOO": "test", "BAR": "test"}
+
+err, pairs = gotenv.StrictParse(strings.NewReader(`FOO="bar"`))
+// gotenv.Env{"FOO": "bar"}
+```
+
+`Parse` ignores invalid lines and returns `Env` of valid environment variables, while `StrictParse` returns an error for invalid lines.
+
+## Notes
+
+The gotenv package is a Go port of [`dotenv`](https://github.com/bkeepers/dotenv) project with some additions made for Go. For general features, it aims to be compatible as close as possible.

vendor/github.com/subosito/gotenv/appveyor.yml

@@ -0,0 +1,9 @@
+build: off
+clone_folder: c:\gopath\src\github.com\subosito\gotenv
+environment:
+  GOPATH: c:\gopath
+stack: go 1.10
+before_test:
+  - go get -t
+test_script:
+  - go test -v -cover -race

vendor/github.com/subosito/gotenv/gotenv.go

@@ -0,0 +1,265 @@
+// Package gotenv provides functionality to dynamically load the environment variables
+package gotenv
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"regexp"
+	"strings"
+)
+
+const (
+	// Pattern for detecting valid line format
+	linePattern = `\A\s*(?:export\s+)?([\w\.]+)(?:\s*=\s*|:\s+?)('(?:\'|[^'])*'|"(?:\"|[^"])*"|[^#\n]+)?\s*(?:\s*\#.*)?\z`
+
+	// Pattern for detecting valid variable within a value
+	variablePattern = `(\\)?(\$)(\{?([A-Z0-9_]+)?\}?)`
+)
+
+// Env holds key/value pair of valid environment variable
+type Env map[string]string
+
+/*
+Load is a function to load a file or multiple files and then export the valid variables into environment variables if they do not exist.
+When it's called with no argument, it will load `.env` file on the current path and set the environment variables.
+Otherwise, it will loop over the filenames parameter and set the proper environment variables.
+*/
+func Load(filenames ...string) error {
+	return loadenv(false, filenames...)
+}
+
+/*
+OverLoad is a function to load a file or multiple files and then export and override the valid variables into environment variables.
+*/
+func OverLoad(filenames ...string) error {
+	return loadenv(true, filenames...)
+}
+
+/*
+Must is wrapper function that will panic when supplied function returns an error.
+*/
+func Must(fn func(filenames ...string) error, filenames ...string) {
+	if err := fn(filenames...); err != nil {
+		panic(err.Error())
+	}
+}
+
+/*
+Apply is a function to load an io Reader then export the valid variables into environment variables if they do not exist.
+*/
+func Apply(r io.Reader) error {
+	return parset(r, false)
+}
+
+/*
+OverApply is a function to load an io Reader then export and override the valid variables into environment variables.
+*/
+func OverApply(r io.Reader) error {
+	return parset(r, true)
+}
+
+func loadenv(override bool, filenames ...string) error {
+	if len(filenames) == 0 {
+		filenames = []string{".env"}
+	}
+
+	for _, filename := range filenames {
+		f, err := os.Open(filename)
+		if err != nil {
+			return err
+		}
+
+		err = parset(f, override)
+		if err != nil {
+			return err
+		}
+
+		f.Close()
+	}
+
+	return nil
+}
+
+// parse and set :)
+func parset(r io.Reader, override bool) error {
+	env, err := StrictParse(r)
+	if err != nil {
+		return err
+	}
+
+	for key, val := range env {
+		setenv(key, val, override)
+	}
+
+	return nil
+}
+
+func setenv(key, val string, override bool) {
+	if override {
+		os.Setenv(key, val)
+	} else {
+		if _, present := os.LookupEnv(key); !present {
+			os.Setenv(key, val)
+		}
+	}
+}
+
+// Parse is a function to parse line by line any io.Reader supplied and returns the valid Env key/value pair of valid variables.
+// It expands the value of a variable from the environment variable but does not set the value to the environment itself.
+// This function is skipping any invalid lines and only processing the valid one.
+func Parse(r io.Reader) Env {
+	env, _ := StrictParse(r)
+	return env
+}
+
+// StrictParse is a function to parse line by line any io.Reader supplied and returns the valid Env key/value pair of valid variables.
+// It expands the value of a variable from the environment variable but does not set the value to the environment itself.
+// This function is returning an error if there are any invalid lines.
+func StrictParse(r io.Reader) (Env, error) {
+	env := make(Env)
+	scanner := bufio.NewScanner(r)
+
+	i := 1
+	bom := string([]byte{239, 187, 191})
+
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		if i == 1 {
+			line = strings.TrimPrefix(line, bom)
+		}
+
+		i++
+
+		err := parseLine(line, env)
+		if err != nil {
+			return env, err
+		}
+	}
+
+	return env, nil
+}
+
+func parseLine(s string, env Env) error {
+	rl := regexp.MustCompile(linePattern)
+	rm := rl.FindStringSubmatch(s)
+
+	if len(rm) == 0 {
+		return checkFormat(s, env)
+	}
+
+	key := rm[1]
+	val := rm[2]
+
+	// determine if string has quote prefix
+	hdq := strings.HasPrefix(val, `"`)
+
+	// determine if string has single quote prefix
+	hsq := strings.HasPrefix(val, `'`)
+
+	// trim whitespace
+	val = strings.Trim(val, " ")
+
+	// remove quotes '' or ""
+	rq := regexp.MustCompile(`\A(['"])(.*)(['"])\z`)
+	val = rq.ReplaceAllString(val, "$2")
+
+	if hdq {
+		val = strings.Replace(val, `\n`, "\n", -1)
+		val = strings.Replace(val, `\r`, "\r", -1)
+
+		// Unescape all characters except $ so variables can be escaped properly
+		re := regexp.MustCompile(`\\([^$])`)
+		val = re.ReplaceAllString(val, "$1")
+	}
+
+	rv := regexp.MustCompile(variablePattern)
+	fv := func(s string) string {
+		return varReplacement(s, hsq, env)
+	}
+
+	val = rv.ReplaceAllStringFunc(val, fv)
+	val = parseVal(val, env)
+
+	env[key] = val
+	return nil
+}
+
+func parseExport(st string, env Env) error {
+	if strings.HasPrefix(st, "export") {
+		vs := strings.SplitN(st, " ", 2)
+
+		if len(vs) > 1 {
+			if _, ok := env[vs[1]]; !ok {
+				return fmt.Errorf("line `%s` has an unset variable", st)
+			}
+		}
+	}
+
+	return nil
+}
+
+func varReplacement(s string, hsq bool, env Env) string {
+	if strings.HasPrefix(s, "\\") {
+		return strings.TrimPrefix(s, "\\")
+	}
+
+	if hsq {
+		return s
+	}
+
+	sn := `(\$)(\{?([A-Z0-9_]+)\}?)`
+	rn := regexp.MustCompile(sn)
+	mn := rn.FindStringSubmatch(s)
+
+	if len(mn) == 0 {
+		return s
+	}
+
+	v := mn[3]
+
+	replace, ok := env[v]
+	if !ok {
+		replace = os.Getenv(v)
+	}
+
+	return replace
+}
+
+func checkFormat(s string, env Env) error {
+	st := strings.TrimSpace(s)
+
+	if (st == "") || strings.HasPrefix(st, "#") {
+		return nil
+	}
+
+	if err := parseExport(st, env); err != nil {
+		return err
+	}
+
+	return fmt.Errorf("line `%s` doesn't match format", s)
+}
+
+func parseVal(val string, env Env) string {
+	if strings.Contains(val, "=") {
+		if !(val == "\n" || val == "\r") {
+			kv := strings.Split(val, "\n")
+
+			if len(kv) == 1 {
+				kv = strings.Split(val, "\r")
+			}
+
+			if len(kv) > 1 {
+				val = kv[0]
+
+				for i := 1; i < len(kv); i++ {
+					parseLine(kv[i], env)
+				}
+			}
+		}
+	}
+
+	return val
+}

vendor/gopkg.in/ini.v1/.gitignore

@@ -0,0 +1,6 @@
+testdata/conf_out.ini
+ini.sublime-project
+ini.sublime-workspace
+testdata/conf_reflect.ini
+.idea
+/.vscode

vendor/gopkg.in/ini.v1/.travis.yml

@@ -0,0 +1,20 @@
+sudo: false
+language: go
+go:
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x
+  - 1.9.x
+  - 1.10.x
+  - 1.11.x
+  - 1.12.x
+  - 1.13.x
+
+install: skip
+script:
+  - go get golang.org/x/tools/cmd/cover
+  - go get github.com/smartystreets/goconvey
+  - mkdir -p $HOME/gopath/src/gopkg.in
+  - ln -s $HOME/gopath/src/github.com/go-ini/ini $HOME/gopath/src/gopkg.in/ini.v1
+  - cd $HOME/gopath/src/gopkg.in/ini.v1
+  - go test -v -cover -race

vendor/gopkg.in/ini.v1/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct or
+indirect, to cause the direction or management of such entity, whether by
+contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+"Object" form shall mean any form resulting from mechanical transformation or
+translation of a Source form, including but not limited to compiled object code,
+generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form, made
+available under the License, as indicated by a copyright notice that is included
+in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that
+is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
+name) to the interfaces of, the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative Works
+thereof, that is intentionally submitted to Licensor for inclusion in the Work
+by the copyright owner or by an individual or Legal Entity authorized to submit
+on behalf of the copyright owner. For the purposes of this definition,
+"submitted" means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, the Licensor for
+the purpose of discussing and improving the Work, but excluding communication
+that is conspicuously marked or otherwise designated in writing by the copyright
+owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
+
+2. Grant of Copyright License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable copyright license to reproduce, prepare Derivative Works of,
+publicly display, publicly perform, sublicense, and distribute the Work and such
+Derivative Works in Source or Object form.
+
+3. Grant of Patent License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable (except as stated in this section) patent license to make, have
+made, use, offer to sell, sell, import, and otherwise transfer the Work, where
+such license applies only to those patent claims licensable by such Contributor
+that are necessarily infringed by their Contribution(s) alone or by combination
+of their Contribution(s) with the Work to which such Contribution(s) was
+submitted. If You institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work or a
+Contribution incorporated within the Work constitutes direct or contributory
+patent infringement, then any patent licenses granted to You under this License
+for that Work shall terminate as of the date such litigation is filed.
+
+4. Redistribution.
+
+You may reproduce and distribute copies of the Work or Derivative Works thereof
+in any medium, with or without modifications, and in Source or Object form,
+provided that You meet the following conditions:
+
+You must give any other recipients of the Work or Derivative Works a copy of
+this License; and
+You must cause any modified files to carry prominent notices stating that You
+changed the files; and
+You must retain, in the Source form of any Derivative Works that You distribute,
+all copyright, patent, trademark, and attribution notices from the Source form
+of the Work, excluding those notices that do not pertain to any part of the
+Derivative Works; and
+If the Work includes a "NOTICE" text file as part of its distribution, then any
+Derivative Works that You distribute must include a readable copy of the
+attribution notices contained within such NOTICE file, excluding those notices
+that do not pertain to any part of the Derivative Works, in at least one of the
+following places: within a NOTICE text file distributed as part of the
+Derivative Works; within the Source form or documentation, if provided along
+with the Derivative Works; or, within a display generated by the Derivative
+Works, if and wherever such third-party notices normally appear. The contents of
+the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works that
+You distribute, alongside or as an addendum to the NOTICE text from the Work,
+provided that such additional attribution notices cannot be construed as
+modifying the License.
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction, or
+distribution of Your modifications, or for any such Derivative Works as a whole,
+provided Your use, reproduction, and distribution of the Work otherwise complies
+with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify the terms of
+any separate license agreement you may have executed with Licensor regarding
+such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks,
+service marks, or product names of the Licensor, except as required for
+reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
+including, without limitation, any warranties or conditions of TITLE,
+NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
+out of the use or inability to use the Work (including but not limited to
+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
+been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
+offer, and charge a fee for, acceptance of support, warranty, indemnity, or
+other liability obligations and/or rights consistent with this License. However,
+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
+the same "printed page" as the copyright notice for easier identification within
+third-party archives.
+
+   Copyright 2014 Unknwon
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/gopkg.in/ini.v1/Makefile

@@ -0,0 +1,15 @@
+.PHONY: build test bench vet coverage
+
+build: vet bench
+
+test:
+	go test -v -cover -race
+
+bench:
+	go test -v -cover -race -test.bench=. -test.benchmem
+
+vet:
+	go vet
+
+coverage:
+	go test -coverprofile=c.out && go tool cover -html=c.out && rm c.out

vendor/gopkg.in/ini.v1/README.md

@@ -0,0 +1,39 @@
+# INI
+
+[![Build Status](https://img.shields.io/travis/go-ini/ini/master.svg?style=for-the-badge&logo=travis)](https://travis-ci.org/go-ini/ini) [![Sourcegraph](https://img.shields.io/badge/view%20on-Sourcegraph-brightgreen.svg?style=for-the-badge&logo=sourcegraph)](https://sourcegraph.com/github.com/go-ini/ini)
+
+![](https://avatars0.githubusercontent.com/u/10216035?v=3&s=200)
+
+Package ini provides INI file read and write functionality in Go.
+
+## Features
+
+- Load from multiple data sources(`[]byte`, file and `io.ReadCloser`) with overwrites.
+- Read with recursion values.
+- Read with parent-child sections.
+- Read with auto-increment key names.
+- Read with multiple-line values.
+- Read with tons of helper methods.
+- Read and convert values to Go types.
+- Read and **WRITE** comments of sections and keys.
+- Manipulate sections, keys and comments with ease.
+- Keep sections and keys in order as you parse and save.
+
+## Installation
+
+The minimum requirement of Go is **1.6**.
+
+```sh
+$ go get gopkg.in/ini.v1
+```
+
+Please add `-u` flag to update in the future.
+
+## Getting Help
+
+- [Getting Started](https://ini.unknwon.io/docs/intro/getting_started)
+- [API Documentation](https://gowalker.org/gopkg.in/ini.v1)
+
+## License
+
+This project is under Apache v2 License. See the [LICENSE](LICENSE) file for the full license text.

vendor/gopkg.in/ini.v1/data_source.go

@@ -0,0 +1,74 @@
+// Copyright 2019 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+)
+
+var (
+	_ dataSource = (*sourceFile)(nil)
+	_ dataSource = (*sourceData)(nil)
+	_ dataSource = (*sourceReadCloser)(nil)
+)
+
+// dataSource is an interface that returns object which can be read and closed.
+type dataSource interface {
+	ReadCloser() (io.ReadCloser, error)
+}
+
+// sourceFile represents an object that contains content on the local file system.
+type sourceFile struct {
+	name string
+}
+
+func (s sourceFile) ReadCloser() (_ io.ReadCloser, err error) {
+	return os.Open(s.name)
+}
+
+// sourceData represents an object that contains content in memory.
+type sourceData struct {
+	data []byte
+}
+
+func (s *sourceData) ReadCloser() (io.ReadCloser, error) {
+	return ioutil.NopCloser(bytes.NewReader(s.data)), nil
+}
+
+// sourceReadCloser represents an input stream with Close method.
+type sourceReadCloser struct {
+	reader io.ReadCloser
+}
+
+func (s *sourceReadCloser) ReadCloser() (io.ReadCloser, error) {
+	return s.reader, nil
+}
+
+func parseDataSource(source interface{}) (dataSource, error) {
+	switch s := source.(type) {
+	case string:
+		return sourceFile{s}, nil
+	case []byte:
+		return &sourceData{s}, nil
+	case io.ReadCloser:
+		return &sourceReadCloser{s}, nil
+	default:
+		return nil, fmt.Errorf("error parsing data source: unknown type %q", s)
+	}
+}

vendor/gopkg.in/ini.v1/deprecated.go

@@ -0,0 +1,25 @@
+// Copyright 2019 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+const (
+	// Deprecated: Use "DefaultSection" instead.
+	DEFAULT_SECTION = DefaultSection
+)
+
+var (
+	// Deprecated: AllCapsUnderscore converts to format ALL_CAPS_UNDERSCORE.
+	AllCapsUnderscore = SnackCase
+)

vendor/gopkg.in/ini.v1/error.go

@@ -0,0 +1,34 @@
+// Copyright 2016 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+import (
+	"fmt"
+)
+
+// ErrDelimiterNotFound indicates the error type of no delimiter is found which there should be one.
+type ErrDelimiterNotFound struct {
+	Line string
+}
+
+// IsErrDelimiterNotFound returns true if the given error is an instance of ErrDelimiterNotFound.
+func IsErrDelimiterNotFound(err error) bool {
+	_, ok := err.(ErrDelimiterNotFound)
+	return ok
+}
+
+func (err ErrDelimiterNotFound) Error() string {
+	return fmt.Sprintf("key-value delimiter not found: %s", err.Line)
+}

vendor/gopkg.in/ini.v1/file.go

@@ -0,0 +1,418 @@
+// Copyright 2017 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"strings"
+	"sync"
+)
+
+// File represents a combination of a or more INI file(s) in memory.
+type File struct {
+	options     LoadOptions
+	dataSources []dataSource
+
+	// Should make things safe, but sometimes doesn't matter.
+	BlockMode bool
+	lock      sync.RWMutex
+
+	// To keep data in order.
+	sectionList []string
+	// Actual data is stored here.
+	sections map[string]*Section
+
+	NameMapper
+	ValueMapper
+}
+
+// newFile initializes File object with given data sources.
+func newFile(dataSources []dataSource, opts LoadOptions) *File {
+	if len(opts.KeyValueDelimiters) == 0 {
+		opts.KeyValueDelimiters = "=:"
+	}
+	return &File{
+		BlockMode:   true,
+		dataSources: dataSources,
+		sections:    make(map[string]*Section),
+		sectionList: make([]string, 0, 10),
+		options:     opts,
+	}
+}
+
+// Empty returns an empty file object.
+func Empty() *File {
+	// Ignore error here, we sure our data is good.
+	f, _ := Load([]byte(""))
+	return f
+}
+
+// NewSection creates a new section.
+func (f *File) NewSection(name string) (*Section, error) {
+	if len(name) == 0 {
+		return nil, errors.New("error creating new section: empty section name")
+	} else if f.options.Insensitive && name != DefaultSection {
+		name = strings.ToLower(name)
+	}
+
+	if f.BlockMode {
+		f.lock.Lock()
+		defer f.lock.Unlock()
+	}
+
+	if inSlice(name, f.sectionList) {
+		return f.sections[name], nil
+	}
+
+	f.sectionList = append(f.sectionList, name)
+	f.sections[name] = newSection(f, name)
+	return f.sections[name], nil
+}
+
+// NewRawSection creates a new section with an unparseable body.
+func (f *File) NewRawSection(name, body string) (*Section, error) {
+	section, err := f.NewSection(name)
+	if err != nil {
+		return nil, err
+	}
+
+	section.isRawSection = true
+	section.rawBody = body
+	return section, nil
+}
+
+// NewSections creates a list of sections.
+func (f *File) NewSections(names ...string) (err error) {
+	for _, name := range names {
+		if _, err = f.NewSection(name); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GetSection returns section by given name.
+func (f *File) GetSection(name string) (*Section, error) {
+	if len(name) == 0 {
+		name = DefaultSection
+	}
+	if f.options.Insensitive {
+		name = strings.ToLower(name)
+	}
+
+	if f.BlockMode {
+		f.lock.RLock()
+		defer f.lock.RUnlock()
+	}
+
+	sec := f.sections[name]
+	if sec == nil {
+		return nil, fmt.Errorf("section '%s' does not exist", name)
+	}
+	return sec, nil
+}
+
+// Section assumes named section exists and returns a zero-value when not.
+func (f *File) Section(name string) *Section {
+	sec, err := f.GetSection(name)
+	if err != nil {
+		// Note: It's OK here because the only possible error is empty section name,
+		// but if it's empty, this piece of code won't be executed.
+		sec, _ = f.NewSection(name)
+		return sec
+	}
+	return sec
+}
+
+// Sections returns a list of Section stored in the current instance.
+func (f *File) Sections() []*Section {
+	if f.BlockMode {
+		f.lock.RLock()
+		defer f.lock.RUnlock()
+	}
+
+	sections := make([]*Section, len(f.sectionList))
+	for i, name := range f.sectionList {
+		sections[i] = f.sections[name]
+	}
+	return sections
+}
+
+// ChildSections returns a list of child sections of given section name.
+func (f *File) ChildSections(name string) []*Section {
+	return f.Section(name).ChildSections()
+}
+
+// SectionStrings returns list of section names.
+func (f *File) SectionStrings() []string {
+	list := make([]string, len(f.sectionList))
+	copy(list, f.sectionList)
+	return list
+}
+
+// DeleteSection deletes a section.
+func (f *File) DeleteSection(name string) {
+	if f.BlockMode {
+		f.lock.Lock()
+		defer f.lock.Unlock()
+	}
+
+	if len(name) == 0 {
+		name = DefaultSection
+	}
+
+	for i, s := range f.sectionList {
+		if s == name {
+			f.sectionList = append(f.sectionList[:i], f.sectionList[i+1:]...)
+			delete(f.sections, name)
+			return
+		}
+	}
+}
+
+func (f *File) reload(s dataSource) error {
+	r, err := s.ReadCloser()
+	if err != nil {
+		return err
+	}
+	defer r.Close()
+
+	return f.parse(r)
+}
+
+// Reload reloads and parses all data sources.
+func (f *File) Reload() (err error) {
+	for _, s := range f.dataSources {
+		if err = f.reload(s); err != nil {
+			// In loose mode, we create an empty default section for nonexistent files.
+			if os.IsNotExist(err) && f.options.Loose {
+				f.parse(bytes.NewBuffer(nil))
+				continue
+			}
+			return err
+		}
+	}
+	return nil
+}
+
+// Append appends one or more data sources and reloads automatically.
+func (f *File) Append(source interface{}, others ...interface{}) error {
+	ds, err := parseDataSource(source)
+	if err != nil {
+		return err
+	}
+	f.dataSources = append(f.dataSources, ds)
+	for _, s := range others {
+		ds, err = parseDataSource(s)
+		if err != nil {
+			return err
+		}
+		f.dataSources = append(f.dataSources, ds)
+	}
+	return f.Reload()
+}
+
+func (f *File) writeToBuffer(indent string) (*bytes.Buffer, error) {
+	equalSign := DefaultFormatLeft + "=" + DefaultFormatRight
+
+	if PrettyFormat || PrettyEqual {
+		equalSign = " = "
+	}
+
+	// Use buffer to make sure target is safe until finish encoding.
+	buf := bytes.NewBuffer(nil)
+	for i, sname := range f.sectionList {
+		sec := f.Section(sname)
+		if len(sec.Comment) > 0 {
+			// Support multiline comments
+			lines := strings.Split(sec.Comment, LineBreak)
+			for i := range lines {
+				if lines[i][0] != '#' && lines[i][0] != ';' {
+					lines[i] = "; " + lines[i]
+				} else {
+					lines[i] = lines[i][:1] + " " + strings.TrimSpace(lines[i][1:])
+				}
+
+				if _, err := buf.WriteString(lines[i] + LineBreak); err != nil {
+					return nil, err
+				}
+			}
+		}
+
+		if i > 0 || DefaultHeader {
+			if _, err := buf.WriteString("[" + sname + "]" + LineBreak); err != nil {
+				return nil, err
+			}
+		} else {
+			// Write nothing if default section is empty
+			if len(sec.keyList) == 0 {
+				continue
+			}
+		}
+
+		if sec.isRawSection {
+			if _, err := buf.WriteString(sec.rawBody); err != nil {
+				return nil, err
+			}
+
+			if PrettySection {
+				// Put a line between sections
+				if _, err := buf.WriteString(LineBreak); err != nil {
+					return nil, err
+				}
+			}
+			continue
+		}
+
+		// Count and generate alignment length and buffer spaces using the
+		// longest key. Keys may be modifed if they contain certain characters so
+		// we need to take that into account in our calculation.
+		alignLength := 0
+		if PrettyFormat {
+			for _, kname := range sec.keyList {
+				keyLength := len(kname)
+				// First case will surround key by ` and second by """
+				if strings.Contains(kname, "\"") || strings.ContainsAny(kname, f.options.KeyValueDelimiters) {
+					keyLength += 2
+				} else if strings.Contains(kname, "`") {
+					keyLength += 6
+				}
+
+				if keyLength > alignLength {
+					alignLength = keyLength
+				}
+			}
+		}
+		alignSpaces := bytes.Repeat([]byte(" "), alignLength)
+
+	KeyList:
+		for _, kname := range sec.keyList {
+			key := sec.Key(kname)
+			if len(key.Comment) > 0 {
+				if len(indent) > 0 && sname != DefaultSection {
+					buf.WriteString(indent)
+				}
+
+				// Support multiline comments
+				lines := strings.Split(key.Comment, LineBreak)
+				for i := range lines {
+					if lines[i][0] != '#' && lines[i][0] != ';' {
+						lines[i] = "; " + strings.TrimSpace(lines[i])
+					} else {
+						lines[i] = lines[i][:1] + " " + strings.TrimSpace(lines[i][1:])
+					}
+
+					if _, err := buf.WriteString(lines[i] + LineBreak); err != nil {
+						return nil, err
+					}
+				}
+			}
+
+			if len(indent) > 0 && sname != DefaultSection {
+				buf.WriteString(indent)
+			}
+
+			switch {
+			case key.isAutoIncrement:
+				kname = "-"
+			case strings.Contains(kname, "\"") || strings.ContainsAny(kname, f.options.KeyValueDelimiters):
+				kname = "`" + kname + "`"
+			case strings.Contains(kname, "`"):
+				kname = `"""` + kname + `"""`
+			}
+
+			for _, val := range key.ValueWithShadows() {
+				if _, err := buf.WriteString(kname); err != nil {
+					return nil, err
+				}
+
+				if key.isBooleanType {
+					if kname != sec.keyList[len(sec.keyList)-1] {
+						buf.WriteString(LineBreak)
+					}
+					continue KeyList
+				}
+
+				// Write out alignment spaces before "=" sign
+				if PrettyFormat {
+					buf.Write(alignSpaces[:alignLength-len(kname)])
+				}
+
+				// In case key value contains "\n", "`", "\"", "#" or ";"
+				if strings.ContainsAny(val, "\n`") {
+					val = `"""` + val + `"""`
+				} else if !f.options.IgnoreInlineComment && strings.ContainsAny(val, "#;") {
+					val = "`" + val + "`"
+				}
+				if _, err := buf.WriteString(equalSign + val + LineBreak); err != nil {
+					return nil, err
+				}
+			}
+
+			for _, val := range key.nestedValues {
+				if _, err := buf.WriteString(indent + "  " + val + LineBreak); err != nil {
+					return nil, err
+				}
+			}
+		}
+
+		if PrettySection {
+			// Put a line between sections
+			if _, err := buf.WriteString(LineBreak); err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	return buf, nil
+}
+
+// WriteToIndent writes content into io.Writer with given indention.
+// If PrettyFormat has been set to be true,
+// it will align "=" sign with spaces under each section.
+func (f *File) WriteToIndent(w io.Writer, indent string) (int64, error) {
+	buf, err := f.writeToBuffer(indent)
+	if err != nil {
+		return 0, err
+	}
+	return buf.WriteTo(w)
+}
+
+// WriteTo writes file content into io.Writer.
+func (f *File) WriteTo(w io.Writer) (int64, error) {
+	return f.WriteToIndent(w, "")
+}
+
+// SaveToIndent writes content to file system with given value indention.
+func (f *File) SaveToIndent(filename, indent string) error {
+	// Note: Because we are truncating with os.Create,
+	// 	so it's safer to save to a temporary file location and rename afte done.
+	buf, err := f.writeToBuffer(indent)
+	if err != nil {
+		return err
+	}
+
+	return ioutil.WriteFile(filename, buf.Bytes(), 0666)
+}
+
+// SaveTo writes content to file system.
+func (f *File) SaveTo(filename string) error {
+	return f.SaveToIndent(filename, "")
+}

vendor/gopkg.in/ini.v1/helper.go

@@ -0,0 +1,24 @@
+// Copyright 2019 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+func inSlice(str string, s []string) bool {
+	for _, v := range s {
+		if str == v {
+			return true
+		}
+	}
+	return false
+}

vendor/gopkg.in/ini.v1/ini.go

@@ -0,0 +1,166 @@
+// +build go1.6
+
+// Copyright 2014 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package ini provides INI file read and write functionality in Go.
+package ini
+
+import (
+	"regexp"
+	"runtime"
+)
+
+const (
+	// DefaultSection is the name of default section. You can use this constant or the string literal.
+	// In most of cases, an empty string is all you need to access the section.
+	DefaultSection = "DEFAULT"
+
+	// Maximum allowed depth when recursively substituing variable names.
+	depthValues = 99
+	version     = "1.51.0"
+)
+
+// Version returns current package version literal.
+func Version() string {
+	return version
+}
+
+var (
+	// LineBreak is the delimiter to determine or compose a new line.
+	// This variable will be changed to "\r\n" automatically on Windows at package init time.
+	LineBreak = "\n"
+
+	// Variable regexp pattern: %(variable)s
+	varPattern = regexp.MustCompile(`%\(([^)]+)\)s`)
+
+	// DefaultHeader explicitly writes default section header.
+	DefaultHeader = false
+
+	// PrettySection indicates whether to put a line between sections.
+	PrettySection = true
+	// PrettyFormat indicates whether to align "=" sign with spaces to produce pretty output
+	// or reduce all possible spaces for compact format.
+	PrettyFormat = true
+	// PrettyEqual places spaces around "=" sign even when PrettyFormat is false.
+	PrettyEqual = false
+	// DefaultFormatLeft places custom spaces on the left when PrettyFormat and PrettyEqual are both disabled.
+	DefaultFormatLeft = ""
+	// DefaultFormatRight places custom spaces on the right when PrettyFormat and PrettyEqual are both disabled.
+	DefaultFormatRight = ""
+)
+
+func init() {
+	if runtime.GOOS == "windows" {
+		LineBreak = "\r\n"
+	}
+}
+
+// LoadOptions contains all customized options used for load data source(s).
+type LoadOptions struct {
+	// Loose indicates whether the parser should ignore nonexistent files or return error.
+	Loose bool
+	// Insensitive indicates whether the parser forces all section and key names to lowercase.
+	Insensitive bool
+	// IgnoreContinuation indicates whether to ignore continuation lines while parsing.
+	IgnoreContinuation bool
+	// IgnoreInlineComment indicates whether to ignore comments at the end of value and treat it as part of value.
+	IgnoreInlineComment bool
+	// SkipUnrecognizableLines indicates whether to skip unrecognizable lines that do not conform to key/value pairs.
+	SkipUnrecognizableLines bool
+	// AllowBooleanKeys indicates whether to allow boolean type keys or treat as value is missing.
+	// This type of keys are mostly used in my.cnf.
+	AllowBooleanKeys bool
+	// AllowShadows indicates whether to keep track of keys with same name under same section.
+	AllowShadows bool
+	// AllowNestedValues indicates whether to allow AWS-like nested values.
+	// Docs: http://docs.aws.amazon.com/cli/latest/topic/config-vars.html#nested-values
+	AllowNestedValues bool
+	// AllowPythonMultilineValues indicates whether to allow Python-like multi-line values.
+	// Docs: https://docs.python.org/3/library/configparser.html#supported-ini-file-structure
+	// Relevant quote:  Values can also span multiple lines, as long as they are indented deeper
+	// than the first line of the value.
+	AllowPythonMultilineValues bool
+	// SpaceBeforeInlineComment indicates whether to allow comment symbols (\# and \;) inside value.
+	// Docs: https://docs.python.org/2/library/configparser.html
+	// Quote: Comments may appear on their own in an otherwise empty line, or may be entered in lines holding values or section names.
+	// In the latter case, they need to be preceded by a whitespace character to be recognized as a comment.
+	SpaceBeforeInlineComment bool
+	// UnescapeValueDoubleQuotes indicates whether to unescape double quotes inside value to regular format
+	// when value is surrounded by double quotes, e.g. key="a \"value\"" => key=a "value"
+	UnescapeValueDoubleQuotes bool
+	// UnescapeValueCommentSymbols indicates to unescape comment symbols (\# and \;) inside value to regular format
+	// when value is NOT surrounded by any quotes.
+	// Note: UNSTABLE, behavior might change to only unescape inside double quotes but may noy necessary at all.
+	UnescapeValueCommentSymbols bool
+	// UnparseableSections stores a list of blocks that are allowed with raw content which do not otherwise
+	// conform to key/value pairs. Specify the names of those blocks here.
+	UnparseableSections []string
+	// KeyValueDelimiters is the sequence of delimiters that are used to separate key and value. By default, it is "=:".
+	KeyValueDelimiters string
+	// PreserveSurroundedQuote indicates whether to preserve surrounded quote (single and double quotes).
+	PreserveSurroundedQuote bool
+	// DebugFunc is called to collect debug information (currently only useful to debug parsing Python-style multiline values).
+	DebugFunc DebugFunc
+	// ReaderBufferSize is the buffer size of the reader in bytes.
+	ReaderBufferSize int
+}
+
+// DebugFunc is the type of function called to log parse events.
+type DebugFunc func(message string)
+
+// LoadSources allows caller to apply customized options for loading from data source(s).
+func LoadSources(opts LoadOptions, source interface{}, others ...interface{}) (_ *File, err error) {
+	sources := make([]dataSource, len(others)+1)
+	sources[0], err = parseDataSource(source)
+	if err != nil {
+		return nil, err
+	}
+	for i := range others {
+		sources[i+1], err = parseDataSource(others[i])
+		if err != nil {
+			return nil, err
+		}
+	}
+	f := newFile(sources, opts)
+	if err = f.Reload(); err != nil {
+		return nil, err
+	}
+	return f, nil
+}
+
+// Load loads and parses from INI data sources.
+// Arguments can be mixed of file name with string type, or raw data in []byte.
+// It will return error if list contains nonexistent files.
+func Load(source interface{}, others ...interface{}) (*File, error) {
+	return LoadSources(LoadOptions{}, source, others...)
+}
+
+// LooseLoad has exactly same functionality as Load function
+// except it ignores nonexistent files instead of returning error.
+func LooseLoad(source interface{}, others ...interface{}) (*File, error) {
+	return LoadSources(LoadOptions{Loose: true}, source, others...)
+}
+
+// InsensitiveLoad has exactly same functionality as Load function
+// except it forces all section and key names to be lowercased.
+func InsensitiveLoad(source interface{}, others ...interface{}) (*File, error) {
+	return LoadSources(LoadOptions{Insensitive: true}, source, others...)
+}
+
+// ShadowLoad has exactly same functionality as Load function
+// except it allows have shadow keys.
+func ShadowLoad(source interface{}, others ...interface{}) (*File, error) {
+	return LoadSources(LoadOptions{AllowShadows: true}, source, others...)
+}

vendor/gopkg.in/ini.v1/key.go

@@ -0,0 +1,801 @@
+// Copyright 2014 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// Key represents a key under a section.
+type Key struct {
+	s               *Section
+	Comment         string
+	name            string
+	value           string
+	isAutoIncrement bool
+	isBooleanType   bool
+
+	isShadow bool
+	shadows  []*Key
+
+	nestedValues []string
+}
+
+// newKey simply return a key object with given values.
+func newKey(s *Section, name, val string) *Key {
+	return &Key{
+		s:     s,
+		name:  name,
+		value: val,
+	}
+}
+
+func (k *Key) addShadow(val string) error {
+	if k.isShadow {
+		return errors.New("cannot add shadow to another shadow key")
+	} else if k.isAutoIncrement || k.isBooleanType {
+		return errors.New("cannot add shadow to auto-increment or boolean key")
+	}
+
+	// Deduplicate shadows based on their values.
+	if k.value == val {
+		return nil
+	}
+	for i := range k.shadows {
+		if k.shadows[i].value == val {
+			return nil
+		}
+	}
+
+	shadow := newKey(k.s, k.name, val)
+	shadow.isShadow = true
+	k.shadows = append(k.shadows, shadow)
+	return nil
+}
+
+// AddShadow adds a new shadow key to itself.
+func (k *Key) AddShadow(val string) error {
+	if !k.s.f.options.AllowShadows {
+		return errors.New("shadow key is not allowed")
+	}
+	return k.addShadow(val)
+}
+
+func (k *Key) addNestedValue(val string) error {
+	if k.isAutoIncrement || k.isBooleanType {
+		return errors.New("cannot add nested value to auto-increment or boolean key")
+	}
+
+	k.nestedValues = append(k.nestedValues, val)
+	return nil
+}
+
+// AddNestedValue adds a nested value to the key.
+func (k *Key) AddNestedValue(val string) error {
+	if !k.s.f.options.AllowNestedValues {
+		return errors.New("nested value is not allowed")
+	}
+	return k.addNestedValue(val)
+}
+
+// ValueMapper represents a mapping function for values, e.g. os.ExpandEnv
+type ValueMapper func(string) string
+
+// Name returns name of key.
+func (k *Key) Name() string {
+	return k.name
+}
+
+// Value returns raw value of key for performance purpose.
+func (k *Key) Value() string {
+	return k.value
+}
+
+// ValueWithShadows returns raw values of key and its shadows if any.
+func (k *Key) ValueWithShadows() []string {
+	if len(k.shadows) == 0 {
+		return []string{k.value}
+	}
+	vals := make([]string, len(k.shadows)+1)
+	vals[0] = k.value
+	for i := range k.shadows {
+		vals[i+1] = k.shadows[i].value
+	}
+	return vals
+}
+
+// NestedValues returns nested values stored in the key.
+// It is possible returned value is nil if no nested values stored in the key.
+func (k *Key) NestedValues() []string {
+	return k.nestedValues
+}
+
+// transformValue takes a raw value and transforms to its final string.
+func (k *Key) transformValue(val string) string {
+	if k.s.f.ValueMapper != nil {
+		val = k.s.f.ValueMapper(val)
+	}
+
+	// Fail-fast if no indicate char found for recursive value
+	if !strings.Contains(val, "%") {
+		return val
+	}
+	for i := 0; i < depthValues; i++ {
+		vr := varPattern.FindString(val)
+		if len(vr) == 0 {
+			break
+		}
+
+		// Take off leading '%(' and trailing ')s'.
+		noption := vr[2 : len(vr)-2]
+
+		// Search in the same section.
+		// If not found or found the key itself, then search again in default section.
+		nk, err := k.s.GetKey(noption)
+		if err != nil || k == nk {
+			nk, _ = k.s.f.Section("").GetKey(noption)
+			if nk == nil {
+				// Stop when no results found in the default section,
+				// and returns the value as-is.
+				break
+			}
+		}
+
+		// Substitute by new value and take off leading '%(' and trailing ')s'.
+		val = strings.Replace(val, vr, nk.value, -1)
+	}
+	return val
+}
+
+// String returns string representation of value.
+func (k *Key) String() string {
+	return k.transformValue(k.value)
+}
+
+// Validate accepts a validate function which can
+// return modifed result as key value.
+func (k *Key) Validate(fn func(string) string) string {
+	return fn(k.String())
+}
+
+// parseBool returns the boolean value represented by the string.
+//
+// It accepts 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On,
+// 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off.
+// Any other value returns an error.
+func parseBool(str string) (value bool, err error) {
+	switch str {
+	case "1", "t", "T", "true", "TRUE", "True", "YES", "yes", "Yes", "y", "ON", "on", "On":
+		return true, nil
+	case "0", "f", "F", "false", "FALSE", "False", "NO", "no", "No", "n", "OFF", "off", "Off":
+		return false, nil
+	}
+	return false, fmt.Errorf("parsing \"%s\": invalid syntax", str)
+}
+
+// Bool returns bool type value.
+func (k *Key) Bool() (bool, error) {
+	return parseBool(k.String())
+}
+
+// Float64 returns float64 type value.
+func (k *Key) Float64() (float64, error) {
+	return strconv.ParseFloat(k.String(), 64)
+}
+
+// Int returns int type value.
+func (k *Key) Int() (int, error) {
+	v, err := strconv.ParseInt(k.String(), 0, 64)
+	return int(v), err
+}
+
+// Int64 returns int64 type value.
+func (k *Key) Int64() (int64, error) {
+	return strconv.ParseInt(k.String(), 0, 64)
+}
+
+// Uint returns uint type valued.
+func (k *Key) Uint() (uint, error) {
+	u, e := strconv.ParseUint(k.String(), 0, 64)
+	return uint(u), e
+}
+
+// Uint64 returns uint64 type value.
+func (k *Key) Uint64() (uint64, error) {
+	return strconv.ParseUint(k.String(), 0, 64)
+}
+
+// Duration returns time.Duration type value.
+func (k *Key) Duration() (time.Duration, error) {
+	return time.ParseDuration(k.String())
+}
+
+// TimeFormat parses with given format and returns time.Time type value.
+func (k *Key) TimeFormat(format string) (time.Time, error) {
+	return time.Parse(format, k.String())
+}
+
+// Time parses with RFC3339 format and returns time.Time type value.
+func (k *Key) Time() (time.Time, error) {
+	return k.TimeFormat(time.RFC3339)
+}
+
+// MustString returns default value if key value is empty.
+func (k *Key) MustString(defaultVal string) string {
+	val := k.String()
+	if len(val) == 0 {
+		k.value = defaultVal
+		return defaultVal
+	}
+	return val
+}
+
+// MustBool always returns value without error,
+// it returns false if error occurs.
+func (k *Key) MustBool(defaultVal ...bool) bool {
+	val, err := k.Bool()
+	if len(defaultVal) > 0 && err != nil {
+		k.value = strconv.FormatBool(defaultVal[0])
+		return defaultVal[0]
+	}
+	return val
+}
+
+// MustFloat64 always returns value without error,
+// it returns 0.0 if error occurs.
+func (k *Key) MustFloat64(defaultVal ...float64) float64 {
+	val, err := k.Float64()
+	if len(defaultVal) > 0 && err != nil {
+		k.value = strconv.FormatFloat(defaultVal[0], 'f', -1, 64)
+		return defaultVal[0]
+	}
+	return val
+}
+
+// MustInt always returns value without error,
+// it returns 0 if error occurs.
+func (k *Key) MustInt(defaultVal ...int) int {
+	val, err := k.Int()
+	if len(defaultVal) > 0 && err != nil {
+		k.value = strconv.FormatInt(int64(defaultVal[0]), 10)
+		return defaultVal[0]
+	}
+	return val
+}
+
+// MustInt64 always returns value without error,
+// it returns 0 if error occurs.
+func (k *Key) MustInt64(defaultVal ...int64) int64 {
+	val, err := k.Int64()
+	if len(defaultVal) > 0 && err != nil {
+		k.value = strconv.FormatInt(defaultVal[0], 10)
+		return defaultVal[0]
+	}
+	return val
+}
+
+// MustUint always returns value without error,
+// it returns 0 if error occurs.
+func (k *Key) MustUint(defaultVal ...uint) uint {
+	val, err := k.Uint()
+	if len(defaultVal) > 0 && err != nil {
+		k.value = strconv.FormatUint(uint64(defaultVal[0]), 10)
+		return defaultVal[0]
+	}
+	return val
+}
+
+// MustUint64 always returns value without error,
+// it returns 0 if error occurs.
+func (k *Key) MustUint64(defaultVal ...uint64) uint64 {
+	val, err := k.Uint64()
+	if len(defaultVal) > 0 && err != nil {
+		k.value = strconv.FormatUint(defaultVal[0], 10)
+		return defaultVal[0]
+	}
+	return val
+}
+
+// MustDuration always returns value without error,
+// it returns zero value if error occurs.
+func (k *Key) MustDuration(defaultVal ...time.Duration) time.Duration {
+	val, err := k.Duration()
+	if len(defaultVal) > 0 && err != nil {
+		k.value = defaultVal[0].String()
+		return defaultVal[0]
+	}
+	return val
+}
+
+// MustTimeFormat always parses with given format and returns value without error,
+// it returns zero value if error occurs.
+func (k *Key) MustTimeFormat(format string, defaultVal ...time.Time) time.Time {
+	val, err := k.TimeFormat(format)
+	if len(defaultVal) > 0 && err != nil {
+		k.value = defaultVal[0].Format(format)
+		return defaultVal[0]
+	}
+	return val
+}
+
+// MustTime always parses with RFC3339 format and returns value without error,
+// it returns zero value if error occurs.
+func (k *Key) MustTime(defaultVal ...time.Time) time.Time {
+	return k.MustTimeFormat(time.RFC3339, defaultVal...)
+}
+
+// In always returns value without error,
+// it returns default value if error occurs or doesn't fit into candidates.
+func (k *Key) In(defaultVal string, candidates []string) string {
+	val := k.String()
+	for _, cand := range candidates {
+		if val == cand {
+			return val
+		}
+	}
+	return defaultVal
+}
+
+// InFloat64 always returns value without error,
+// it returns default value if error occurs or doesn't fit into candidates.
+func (k *Key) InFloat64(defaultVal float64, candidates []float64) float64 {
+	val := k.MustFloat64()
+	for _, cand := range candidates {
+		if val == cand {
+			return val
+		}
+	}
+	return defaultVal
+}
+
+// InInt always returns value without error,
+// it returns default value if error occurs or doesn't fit into candidates.
+func (k *Key) InInt(defaultVal int, candidates []int) int {
+	val := k.MustInt()
+	for _, cand := range candidates {
+		if val == cand {
+			return val
+		}
+	}
+	return defaultVal
+}
+
+// InInt64 always returns value without error,
+// it returns default value if error occurs or doesn't fit into candidates.
+func (k *Key) InInt64(defaultVal int64, candidates []int64) int64 {
+	val := k.MustInt64()
+	for _, cand := range candidates {
+		if val == cand {
+			return val
+		}
+	}
+	return defaultVal
+}
+
+// InUint always returns value without error,
+// it returns default value if error occurs or doesn't fit into candidates.
+func (k *Key) InUint(defaultVal uint, candidates []uint) uint {
+	val := k.MustUint()
+	for _, cand := range candidates {
+		if val == cand {
+			return val
+		}
+	}
+	return defaultVal
+}
+
+// InUint64 always returns value without error,
+// it returns default value if error occurs or doesn't fit into candidates.
+func (k *Key) InUint64(defaultVal uint64, candidates []uint64) uint64 {
+	val := k.MustUint64()
+	for _, cand := range candidates {
+		if val == cand {
+			return val
+		}
+	}
+	return defaultVal
+}
+
+// InTimeFormat always parses with given format and returns value without error,
+// it returns default value if error occurs or doesn't fit into candidates.
+func (k *Key) InTimeFormat(format string, defaultVal time.Time, candidates []time.Time) time.Time {
+	val := k.MustTimeFormat(format)
+	for _, cand := range candidates {
+		if val == cand {
+			return val
+		}
+	}
+	return defaultVal
+}
+
+// InTime always parses with RFC3339 format and returns value without error,
+// it returns default value if error occurs or doesn't fit into candidates.
+func (k *Key) InTime(defaultVal time.Time, candidates []time.Time) time.Time {
+	return k.InTimeFormat(time.RFC3339, defaultVal, candidates)
+}
+
+// RangeFloat64 checks if value is in given range inclusively,
+// and returns default value if it's not.
+func (k *Key) RangeFloat64(defaultVal, min, max float64) float64 {
+	val := k.MustFloat64()
+	if val < min || val > max {
+		return defaultVal
+	}
+	return val
+}
+
+// RangeInt checks if value is in given range inclusively,
+// and returns default value if it's not.
+func (k *Key) RangeInt(defaultVal, min, max int) int {
+	val := k.MustInt()
+	if val < min || val > max {
+		return defaultVal
+	}
+	return val
+}
+
+// RangeInt64 checks if value is in given range inclusively,
+// and returns default value if it's not.
+func (k *Key) RangeInt64(defaultVal, min, max int64) int64 {
+	val := k.MustInt64()
+	if val < min || val > max {
+		return defaultVal
+	}
+	return val
+}
+
+// RangeTimeFormat checks if value with given format is in given range inclusively,
+// and returns default value if it's not.
+func (k *Key) RangeTimeFormat(format string, defaultVal, min, max time.Time) time.Time {
+	val := k.MustTimeFormat(format)
+	if val.Unix() < min.Unix() || val.Unix() > max.Unix() {
+		return defaultVal
+	}
+	return val
+}
+
+// RangeTime checks if value with RFC3339 format is in given range inclusively,
+// and returns default value if it's not.
+func (k *Key) RangeTime(defaultVal, min, max time.Time) time.Time {
+	return k.RangeTimeFormat(time.RFC3339, defaultVal, min, max)
+}
+
+// Strings returns list of string divided by given delimiter.
+func (k *Key) Strings(delim string) []string {
+	str := k.String()
+	if len(str) == 0 {
+		return []string{}
+	}
+
+	runes := []rune(str)
+	vals := make([]string, 0, 2)
+	var buf bytes.Buffer
+	escape := false
+	idx := 0
+	for {
+		if escape {
+			escape = false
+			if runes[idx] != '\\' && !strings.HasPrefix(string(runes[idx:]), delim) {
+				buf.WriteRune('\\')
+			}
+			buf.WriteRune(runes[idx])
+		} else {
+			if runes[idx] == '\\' {
+				escape = true
+			} else if strings.HasPrefix(string(runes[idx:]), delim) {
+				idx += len(delim) - 1
+				vals = append(vals, strings.TrimSpace(buf.String()))
+				buf.Reset()
+			} else {
+				buf.WriteRune(runes[idx])
+			}
+		}
+		idx++
+		if idx == len(runes) {
+			break
+		}
+	}
+
+	if buf.Len() > 0 {
+		vals = append(vals, strings.TrimSpace(buf.String()))
+	}
+
+	return vals
+}
+
+// StringsWithShadows returns list of string divided by given delimiter.
+// Shadows will also be appended if any.
+func (k *Key) StringsWithShadows(delim string) []string {
+	vals := k.ValueWithShadows()
+	results := make([]string, 0, len(vals)*2)
+	for i := range vals {
+		if len(vals) == 0 {
+			continue
+		}
+
+		results = append(results, strings.Split(vals[i], delim)...)
+	}
+
+	for i := range results {
+		results[i] = k.transformValue(strings.TrimSpace(results[i]))
+	}
+	return results
+}
+
+// Float64s returns list of float64 divided by given delimiter. Any invalid input will be treated as zero value.
+func (k *Key) Float64s(delim string) []float64 {
+	vals, _ := k.parseFloat64s(k.Strings(delim), true, false)
+	return vals
+}
+
+// Ints returns list of int divided by given delimiter. Any invalid input will be treated as zero value.
+func (k *Key) Ints(delim string) []int {
+	vals, _ := k.parseInts(k.Strings(delim), true, false)
+	return vals
+}
+
+// Int64s returns list of int64 divided by given delimiter. Any invalid input will be treated as zero value.
+func (k *Key) Int64s(delim string) []int64 {
+	vals, _ := k.parseInt64s(k.Strings(delim), true, false)
+	return vals
+}
+
+// Uints returns list of uint divided by given delimiter. Any invalid input will be treated as zero value.
+func (k *Key) Uints(delim string) []uint {
+	vals, _ := k.parseUints(k.Strings(delim), true, false)
+	return vals
+}
+
+// Uint64s returns list of uint64 divided by given delimiter. Any invalid input will be treated as zero value.
+func (k *Key) Uint64s(delim string) []uint64 {
+	vals, _ := k.parseUint64s(k.Strings(delim), true, false)
+	return vals
+}
+
+// Bools returns list of bool divided by given delimiter. Any invalid input will be treated as zero value.
+func (k *Key) Bools(delim string) []bool {
+	vals, _ := k.parseBools(k.Strings(delim), true, false)
+	return vals
+}
+
+// TimesFormat parses with given format and returns list of time.Time divided by given delimiter.
+// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC).
+func (k *Key) TimesFormat(format, delim string) []time.Time {
+	vals, _ := k.parseTimesFormat(format, k.Strings(delim), true, false)
+	return vals
+}
+
+// Times parses with RFC3339 format and returns list of time.Time divided by given delimiter.
+// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC).
+func (k *Key) Times(delim string) []time.Time {
+	return k.TimesFormat(time.RFC3339, delim)
+}
+
+// ValidFloat64s returns list of float64 divided by given delimiter. If some value is not float, then
+// it will not be included to result list.
+func (k *Key) ValidFloat64s(delim string) []float64 {
+	vals, _ := k.parseFloat64s(k.Strings(delim), false, false)
+	return vals
+}
+
+// ValidInts returns list of int divided by given delimiter. If some value is not integer, then it will
+// not be included to result list.
+func (k *Key) ValidInts(delim string) []int {
+	vals, _ := k.parseInts(k.Strings(delim), false, false)
+	return vals
+}
+
+// ValidInt64s returns list of int64 divided by given delimiter. If some value is not 64-bit integer,
+// then it will not be included to result list.
+func (k *Key) ValidInt64s(delim string) []int64 {
+	vals, _ := k.parseInt64s(k.Strings(delim), false, false)
+	return vals
+}
+
+// ValidUints returns list of uint divided by given delimiter. If some value is not unsigned integer,
+// then it will not be included to result list.
+func (k *Key) ValidUints(delim string) []uint {
+	vals, _ := k.parseUints(k.Strings(delim), false, false)
+	return vals
+}
+
+// ValidUint64s returns list of uint64 divided by given delimiter. If some value is not 64-bit unsigned
+// integer, then it will not be included to result list.
+func (k *Key) ValidUint64s(delim string) []uint64 {
+	vals, _ := k.parseUint64s(k.Strings(delim), false, false)
+	return vals
+}
+
+// ValidBools returns list of bool divided by given delimiter. If some value is not 64-bit unsigned
+// integer, then it will not be included to result list.
+func (k *Key) ValidBools(delim string) []bool {
+	vals, _ := k.parseBools(k.Strings(delim), false, false)
+	return vals
+}
+
+// ValidTimesFormat parses with given format and returns list of time.Time divided by given delimiter.
+func (k *Key) ValidTimesFormat(format, delim string) []time.Time {
+	vals, _ := k.parseTimesFormat(format, k.Strings(delim), false, false)
+	return vals
+}
+
+// ValidTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter.
+func (k *Key) ValidTimes(delim string) []time.Time {
+	return k.ValidTimesFormat(time.RFC3339, delim)
+}
+
+// StrictFloat64s returns list of float64 divided by given delimiter or error on first invalid input.
+func (k *Key) StrictFloat64s(delim string) ([]float64, error) {
+	return k.parseFloat64s(k.Strings(delim), false, true)
+}
+
+// StrictInts returns list of int divided by given delimiter or error on first invalid input.
+func (k *Key) StrictInts(delim string) ([]int, error) {
+	return k.parseInts(k.Strings(delim), false, true)
+}
+
+// StrictInt64s returns list of int64 divided by given delimiter or error on first invalid input.
+func (k *Key) StrictInt64s(delim string) ([]int64, error) {
+	return k.parseInt64s(k.Strings(delim), false, true)
+}
+
+// StrictUints returns list of uint divided by given delimiter or error on first invalid input.
+func (k *Key) StrictUints(delim string) ([]uint, error) {
+	return k.parseUints(k.Strings(delim), false, true)
+}
+
+// StrictUint64s returns list of uint64 divided by given delimiter or error on first invalid input.
+func (k *Key) StrictUint64s(delim string) ([]uint64, error) {
+	return k.parseUint64s(k.Strings(delim), false, true)
+}
+
+// StrictBools returns list of bool divided by given delimiter or error on first invalid input.
+func (k *Key) StrictBools(delim string) ([]bool, error) {
+	return k.parseBools(k.Strings(delim), false, true)
+}
+
+// StrictTimesFormat parses with given format and returns list of time.Time divided by given delimiter
+// or error on first invalid input.
+func (k *Key) StrictTimesFormat(format, delim string) ([]time.Time, error) {
+	return k.parseTimesFormat(format, k.Strings(delim), false, true)
+}
+
+// StrictTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter
+// or error on first invalid input.
+func (k *Key) StrictTimes(delim string) ([]time.Time, error) {
+	return k.StrictTimesFormat(time.RFC3339, delim)
+}
+
+// parseBools transforms strings to bools.
+func (k *Key) parseBools(strs []string, addInvalid, returnOnInvalid bool) ([]bool, error) {
+	vals := make([]bool, 0, len(strs))
+	for _, str := range strs {
+		val, err := parseBool(str)
+		if err != nil && returnOnInvalid {
+			return nil, err
+		}
+		if err == nil || addInvalid {
+			vals = append(vals, val)
+		}
+	}
+	return vals, nil
+}
+
+// parseFloat64s transforms strings to float64s.
+func (k *Key) parseFloat64s(strs []string, addInvalid, returnOnInvalid bool) ([]float64, error) {
+	vals := make([]float64, 0, len(strs))
+	for _, str := range strs {
+		val, err := strconv.ParseFloat(str, 64)
+		if err != nil && returnOnInvalid {
+			return nil, err
+		}
+		if err == nil || addInvalid {
+			vals = append(vals, val)
+		}
+	}
+	return vals, nil
+}
+
+// parseInts transforms strings to ints.
+func (k *Key) parseInts(strs []string, addInvalid, returnOnInvalid bool) ([]int, error) {
+	vals := make([]int, 0, len(strs))
+	for _, str := range strs {
+		valInt64, err := strconv.ParseInt(str, 0, 64)
+		val := int(valInt64)
+		if err != nil && returnOnInvalid {
+			return nil, err
+		}
+		if err == nil || addInvalid {
+			vals = append(vals, val)
+		}
+	}
+	return vals, nil
+}
+
+// parseInt64s transforms strings to int64s.
+func (k *Key) parseInt64s(strs []string, addInvalid, returnOnInvalid bool) ([]int64, error) {
+	vals := make([]int64, 0, len(strs))
+	for _, str := range strs {
+		val, err := strconv.ParseInt(str, 0, 64)
+		if err != nil && returnOnInvalid {
+			return nil, err
+		}
+		if err == nil || addInvalid {
+			vals = append(vals, val)
+		}
+	}
+	return vals, nil
+}
+
+// parseUints transforms strings to uints.
+func (k *Key) parseUints(strs []string, addInvalid, returnOnInvalid bool) ([]uint, error) {
+	vals := make([]uint, 0, len(strs))
+	for _, str := range strs {
+		val, err := strconv.ParseUint(str, 0, 0)
+		if err != nil && returnOnInvalid {
+			return nil, err
+		}
+		if err == nil || addInvalid {
+			vals = append(vals, uint(val))
+		}
+	}
+	return vals, nil
+}
+
+// parseUint64s transforms strings to uint64s.
+func (k *Key) parseUint64s(strs []string, addInvalid, returnOnInvalid bool) ([]uint64, error) {
+	vals := make([]uint64, 0, len(strs))
+	for _, str := range strs {
+		val, err := strconv.ParseUint(str, 0, 64)
+		if err != nil && returnOnInvalid {
+			return nil, err
+		}
+		if err == nil || addInvalid {
+			vals = append(vals, val)
+		}
+	}
+	return vals, nil
+}
+
+// parseTimesFormat transforms strings to times in given format.
+func (k *Key) parseTimesFormat(format string, strs []string, addInvalid, returnOnInvalid bool) ([]time.Time, error) {
+	vals := make([]time.Time, 0, len(strs))
+	for _, str := range strs {
+		val, err := time.Parse(format, str)
+		if err != nil && returnOnInvalid {
+			return nil, err
+		}
+		if err == nil || addInvalid {
+			vals = append(vals, val)
+		}
+	}
+	return vals, nil
+}
+
+// SetValue changes key value.
+func (k *Key) SetValue(v string) {
+	if k.s.f.BlockMode {
+		k.s.f.lock.Lock()
+		defer k.s.f.lock.Unlock()
+	}
+
+	k.value = v
+	k.s.keysHash[k.name] = v
+}

vendor/gopkg.in/ini.v1/parser.go

@@ -0,0 +1,526 @@
+// Copyright 2015 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io"
+	"regexp"
+	"strconv"
+	"strings"
+	"unicode"
+)
+
+const minReaderBufferSize = 4096
+
+var pythonMultiline = regexp.MustCompile(`^([\t\f ]+)(.*)`)
+
+type parserOptions struct {
+	IgnoreContinuation          bool
+	IgnoreInlineComment         bool
+	AllowPythonMultilineValues  bool
+	SpaceBeforeInlineComment    bool
+	UnescapeValueDoubleQuotes   bool
+	UnescapeValueCommentSymbols bool
+	PreserveSurroundedQuote     bool
+	DebugFunc                   DebugFunc
+	ReaderBufferSize            int
+}
+
+type parser struct {
+	buf     *bufio.Reader
+	options parserOptions
+
+	isEOF   bool
+	count   int
+	comment *bytes.Buffer
+}
+
+func (p *parser) debug(format string, args ...interface{}) {
+	if p.options.DebugFunc != nil {
+		p.options.DebugFunc(fmt.Sprintf(format, args...))
+	}
+}
+
+func newParser(r io.Reader, opts parserOptions) *parser {
+	size := opts.ReaderBufferSize
+	if size < minReaderBufferSize {
+		size = minReaderBufferSize
+	}
+
+	return &parser{
+		buf:     bufio.NewReaderSize(r, size),
+		options: opts,
+		count:   1,
+		comment: &bytes.Buffer{},
+	}
+}
+
+// BOM handles header of UTF-8, UTF-16 LE and UTF-16 BE's BOM format.
+// http://en.wikipedia.org/wiki/Byte_order_mark#Representations_of_byte_order_marks_by_encoding
+func (p *parser) BOM() error {
+	mask, err := p.buf.Peek(2)
+	if err != nil && err != io.EOF {
+		return err
+	} else if len(mask) < 2 {
+		return nil
+	}
+
+	switch {
+	case mask[0] == 254 && mask[1] == 255:
+		fallthrough
+	case mask[0] == 255 && mask[1] == 254:
+		p.buf.Read(mask)
+	case mask[0] == 239 && mask[1] == 187:
+		mask, err := p.buf.Peek(3)
+		if err != nil && err != io.EOF {
+			return err
+		} else if len(mask) < 3 {
+			return nil
+		}
+		if mask[2] == 191 {
+			p.buf.Read(mask)
+		}
+	}
+	return nil
+}
+
+func (p *parser) readUntil(delim byte) ([]byte, error) {
+	data, err := p.buf.ReadBytes(delim)
+	if err != nil {
+		if err == io.EOF {
+			p.isEOF = true
+		} else {
+			return nil, err
+		}
+	}
+	return data, nil
+}
+
+func cleanComment(in []byte) ([]byte, bool) {
+	i := bytes.IndexAny(in, "#;")
+	if i == -1 {
+		return nil, false
+	}
+	return in[i:], true
+}
+
+func readKeyName(delimiters string, in []byte) (string, int, error) {
+	line := string(in)
+
+	// Check if key name surrounded by quotes.
+	var keyQuote string
+	if line[0] == '"' {
+		if len(line) > 6 && string(line[0:3]) == `"""` {
+			keyQuote = `"""`
+		} else {
+			keyQuote = `"`
+		}
+	} else if line[0] == '`' {
+		keyQuote = "`"
+	}
+
+	// Get out key name
+	endIdx := -1
+	if len(keyQuote) > 0 {
+		startIdx := len(keyQuote)
+		// FIXME: fail case -> """"""name"""=value
+		pos := strings.Index(line[startIdx:], keyQuote)
+		if pos == -1 {
+			return "", -1, fmt.Errorf("missing closing key quote: %s", line)
+		}
+		pos += startIdx
+
+		// Find key-value delimiter
+		i := strings.IndexAny(line[pos+startIdx:], delimiters)
+		if i < 0 {
+			return "", -1, ErrDelimiterNotFound{line}
+		}
+		endIdx = pos + i
+		return strings.TrimSpace(line[startIdx:pos]), endIdx + startIdx + 1, nil
+	}
+
+	endIdx = strings.IndexAny(line, delimiters)
+	if endIdx < 0 {
+		return "", -1, ErrDelimiterNotFound{line}
+	}
+	return strings.TrimSpace(line[0:endIdx]), endIdx + 1, nil
+}
+
+func (p *parser) readMultilines(line, val, valQuote string) (string, error) {
+	for {
+		data, err := p.readUntil('\n')
+		if err != nil {
+			return "", err
+		}
+		next := string(data)
+
+		pos := strings.LastIndex(next, valQuote)
+		if pos > -1 {
+			val += next[:pos]
+
+			comment, has := cleanComment([]byte(next[pos:]))
+			if has {
+				p.comment.Write(bytes.TrimSpace(comment))
+			}
+			break
+		}
+		val += next
+		if p.isEOF {
+			return "", fmt.Errorf("missing closing key quote from '%s' to '%s'", line, next)
+		}
+	}
+	return val, nil
+}
+
+func (p *parser) readContinuationLines(val string) (string, error) {
+	for {
+		data, err := p.readUntil('\n')
+		if err != nil {
+			return "", err
+		}
+		next := strings.TrimSpace(string(data))
+
+		if len(next) == 0 {
+			break
+		}
+		val += next
+		if val[len(val)-1] != '\\' {
+			break
+		}
+		val = val[:len(val)-1]
+	}
+	return val, nil
+}
+
+// hasSurroundedQuote check if and only if the first and last characters
+// are quotes \" or \'.
+// It returns false if any other parts also contain same kind of quotes.
+func hasSurroundedQuote(in string, quote byte) bool {
+	return len(in) >= 2 && in[0] == quote && in[len(in)-1] == quote &&
+		strings.IndexByte(in[1:], quote) == len(in)-2
+}
+
+func (p *parser) readValue(in []byte, bufferSize int) (string, error) {
+
+	line := strings.TrimLeftFunc(string(in), unicode.IsSpace)
+	if len(line) == 0 {
+		if p.options.AllowPythonMultilineValues && len(in) > 0 && in[len(in)-1] == '\n' {
+			return p.readPythonMultilines(line, bufferSize)
+		}
+		return "", nil
+	}
+
+	var valQuote string
+	if len(line) > 3 && string(line[0:3]) == `"""` {
+		valQuote = `"""`
+	} else if line[0] == '`' {
+		valQuote = "`"
+	} else if p.options.UnescapeValueDoubleQuotes && line[0] == '"' {
+		valQuote = `"`
+	}
+
+	if len(valQuote) > 0 {
+		startIdx := len(valQuote)
+		pos := strings.LastIndex(line[startIdx:], valQuote)
+		// Check for multi-line value
+		if pos == -1 {
+			return p.readMultilines(line, line[startIdx:], valQuote)
+		}
+
+		if p.options.UnescapeValueDoubleQuotes && valQuote == `"` {
+			return strings.Replace(line[startIdx:pos+startIdx], `\"`, `"`, -1), nil
+		}
+		return line[startIdx : pos+startIdx], nil
+	}
+
+	lastChar := line[len(line)-1]
+	// Won't be able to reach here if value only contains whitespace
+	line = strings.TrimSpace(line)
+	trimmedLastChar := line[len(line)-1]
+
+	// Check continuation lines when desired
+	if !p.options.IgnoreContinuation && trimmedLastChar == '\\' {
+		return p.readContinuationLines(line[:len(line)-1])
+	}
+
+	// Check if ignore inline comment
+	if !p.options.IgnoreInlineComment {
+		var i int
+		if p.options.SpaceBeforeInlineComment {
+			i = strings.Index(line, " #")
+			if i == -1 {
+				i = strings.Index(line, " ;")
+			}
+
+		} else {
+			i = strings.IndexAny(line, "#;")
+		}
+
+		if i > -1 {
+			p.comment.WriteString(line[i:])
+			line = strings.TrimSpace(line[:i])
+		}
+
+	}
+
+	// Trim single and double quotes
+	if (hasSurroundedQuote(line, '\'') ||
+		hasSurroundedQuote(line, '"')) && !p.options.PreserveSurroundedQuote {
+		line = line[1 : len(line)-1]
+	} else if len(valQuote) == 0 && p.options.UnescapeValueCommentSymbols {
+		if strings.Contains(line, `\;`) {
+			line = strings.Replace(line, `\;`, ";", -1)
+		}
+		if strings.Contains(line, `\#`) {
+			line = strings.Replace(line, `\#`, "#", -1)
+		}
+	} else if p.options.AllowPythonMultilineValues && lastChar == '\n' {
+		return p.readPythonMultilines(line, bufferSize)
+	}
+
+	return line, nil
+}
+
+func (p *parser) readPythonMultilines(line string, bufferSize int) (string, error) {
+	parserBufferPeekResult, _ := p.buf.Peek(bufferSize)
+	peekBuffer := bytes.NewBuffer(parserBufferPeekResult)
+
+	indentSize := 0
+	for {
+		peekData, peekErr := peekBuffer.ReadBytes('\n')
+		if peekErr != nil {
+			if peekErr == io.EOF {
+				p.debug("readPythonMultilines: io.EOF, peekData: %q, line: %q", string(peekData), line)
+				return line, nil
+			}
+
+			p.debug("readPythonMultilines: failed to peek with error: %v", peekErr)
+			return "", peekErr
+		}
+
+		p.debug("readPythonMultilines: parsing %q", string(peekData))
+
+		peekMatches := pythonMultiline.FindStringSubmatch(string(peekData))
+		p.debug("readPythonMultilines: matched %d parts", len(peekMatches))
+		for n, v := range peekMatches {
+			p.debug("   %d: %q", n, v)
+		}
+
+		// Return if not a Python multiline value.
+		if len(peekMatches) != 3 {
+			p.debug("readPythonMultilines: end of value, got: %q", line)
+			return line, nil
+		}
+
+		// Determine indent size and line prefix.
+		currentIndentSize := len(peekMatches[1])
+		if indentSize < 1 {
+			indentSize = currentIndentSize
+			p.debug("readPythonMultilines: indent size is %d", indentSize)
+		}
+
+		// Make sure each line is indented at least as far as first line.
+		if currentIndentSize < indentSize {
+			p.debug("readPythonMultilines: end of value, current indent: %d, expected indent: %d, line: %q", currentIndentSize, indentSize, line)
+			return line, nil
+		}
+
+		// Advance the parser reader (buffer) in-sync with the peek buffer.
+		_, err := p.buf.Discard(len(peekData))
+		if err != nil {
+			p.debug("readPythonMultilines: failed to skip to the end, returning error")
+			return "", err
+		}
+
+		// Handle indented empty line.
+		line += "\n" + peekMatches[1][indentSize:] + peekMatches[2]
+	}
+}
+
+// parse parses data through an io.Reader.
+func (f *File) parse(reader io.Reader) (err error) {
+	p := newParser(reader, parserOptions{
+		IgnoreContinuation:          f.options.IgnoreContinuation,
+		IgnoreInlineComment:         f.options.IgnoreInlineComment,
+		AllowPythonMultilineValues:  f.options.AllowPythonMultilineValues,
+		SpaceBeforeInlineComment:    f.options.SpaceBeforeInlineComment,
+		UnescapeValueDoubleQuotes:   f.options.UnescapeValueDoubleQuotes,
+		UnescapeValueCommentSymbols: f.options.UnescapeValueCommentSymbols,
+		PreserveSurroundedQuote:     f.options.PreserveSurroundedQuote,
+		DebugFunc:                   f.options.DebugFunc,
+		ReaderBufferSize:            f.options.ReaderBufferSize,
+	})
+	if err = p.BOM(); err != nil {
+		return fmt.Errorf("BOM: %v", err)
+	}
+
+	// Ignore error because default section name is never empty string.
+	name := DefaultSection
+	if f.options.Insensitive {
+		name = strings.ToLower(DefaultSection)
+	}
+	section, _ := f.NewSection(name)
+
+	// This "last" is not strictly equivalent to "previous one" if current key is not the first nested key
+	var isLastValueEmpty bool
+	var lastRegularKey *Key
+
+	var line []byte
+	var inUnparseableSection bool
+
+	// NOTE: Iterate and increase `currentPeekSize` until
+	// the size of the parser buffer is found.
+	// TODO(unknwon): When Golang 1.10 is the lowest version supported, replace with `parserBufferSize := p.buf.Size()`.
+	parserBufferSize := 0
+	// NOTE: Peek 4kb at a time.
+	currentPeekSize := minReaderBufferSize
+
+	if f.options.AllowPythonMultilineValues {
+		for {
+			peekBytes, _ := p.buf.Peek(currentPeekSize)
+			peekBytesLength := len(peekBytes)
+
+			if parserBufferSize >= peekBytesLength {
+				break
+			}
+
+			currentPeekSize *= 2
+			parserBufferSize = peekBytesLength
+		}
+	}
+
+	for !p.isEOF {
+		line, err = p.readUntil('\n')
+		if err != nil {
+			return err
+		}
+
+		if f.options.AllowNestedValues &&
+			isLastValueEmpty && len(line) > 0 {
+			if line[0] == ' ' || line[0] == '\t' {
+				lastRegularKey.addNestedValue(string(bytes.TrimSpace(line)))
+				continue
+			}
+		}
+
+		line = bytes.TrimLeftFunc(line, unicode.IsSpace)
+		if len(line) == 0 {
+			continue
+		}
+
+		// Comments
+		if line[0] == '#' || line[0] == ';' {
+			// Note: we do not care ending line break,
+			// it is needed for adding second line,
+			// so just clean it once at the end when set to value.
+			p.comment.Write(line)
+			continue
+		}
+
+		// Section
+		if line[0] == '[' {
+			// Read to the next ']' (TODO: support quoted strings)
+			closeIdx := bytes.LastIndexByte(line, ']')
+			if closeIdx == -1 {
+				return fmt.Errorf("unclosed section: %s", line)
+			}
+
+			name := string(line[1:closeIdx])
+			section, err = f.NewSection(name)
+			if err != nil {
+				return err
+			}
+
+			comment, has := cleanComment(line[closeIdx+1:])
+			if has {
+				p.comment.Write(comment)
+			}
+
+			section.Comment = strings.TrimSpace(p.comment.String())
+
+			// Reset aotu-counter and comments
+			p.comment.Reset()
+			p.count = 1
+
+			inUnparseableSection = false
+			for i := range f.options.UnparseableSections {
+				if f.options.UnparseableSections[i] == name ||
+					(f.options.Insensitive && strings.ToLower(f.options.UnparseableSections[i]) == strings.ToLower(name)) {
+					inUnparseableSection = true
+					continue
+				}
+			}
+			continue
+		}
+
+		if inUnparseableSection {
+			section.isRawSection = true
+			section.rawBody += string(line)
+			continue
+		}
+
+		kname, offset, err := readKeyName(f.options.KeyValueDelimiters, line)
+		if err != nil {
+			// Treat as boolean key when desired, and whole line is key name.
+			if IsErrDelimiterNotFound(err) {
+				switch {
+				case f.options.AllowBooleanKeys:
+					kname, err := p.readValue(line, parserBufferSize)
+					if err != nil {
+						return err
+					}
+					key, err := section.NewBooleanKey(kname)
+					if err != nil {
+						return err
+					}
+					key.Comment = strings.TrimSpace(p.comment.String())
+					p.comment.Reset()
+					continue
+
+				case f.options.SkipUnrecognizableLines:
+					continue
+				}
+			}
+			return err
+		}
+
+		// Auto increment.
+		isAutoIncr := false
+		if kname == "-" {
+			isAutoIncr = true
+			kname = "#" + strconv.Itoa(p.count)
+			p.count++
+		}
+
+		value, err := p.readValue(line[offset:], parserBufferSize)
+		if err != nil {
+			return err
+		}
+		isLastValueEmpty = len(value) == 0
+
+		key, err := section.NewKey(kname, value)
+		if err != nil {
+			return err
+		}
+		key.isAutoIncrement = isAutoIncr
+		key.Comment = strings.TrimSpace(p.comment.String())
+		p.comment.Reset()
+		lastRegularKey = key
+	}
+	return nil
+}

vendor/gopkg.in/ini.v1/section.go

@@ -0,0 +1,256 @@
+// Copyright 2014 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+)
+
+// Section represents a config section.
+type Section struct {
+	f        *File
+	Comment  string
+	name     string
+	keys     map[string]*Key
+	keyList  []string
+	keysHash map[string]string
+
+	isRawSection bool
+	rawBody      string
+}
+
+func newSection(f *File, name string) *Section {
+	return &Section{
+		f:        f,
+		name:     name,
+		keys:     make(map[string]*Key),
+		keyList:  make([]string, 0, 10),
+		keysHash: make(map[string]string),
+	}
+}
+
+// Name returns name of Section.
+func (s *Section) Name() string {
+	return s.name
+}
+
+// Body returns rawBody of Section if the section was marked as unparseable.
+// It still follows the other rules of the INI format surrounding leading/trailing whitespace.
+func (s *Section) Body() string {
+	return strings.TrimSpace(s.rawBody)
+}
+
+// SetBody updates body content only if section is raw.
+func (s *Section) SetBody(body string) {
+	if !s.isRawSection {
+		return
+	}
+	s.rawBody = body
+}
+
+// NewKey creates a new key to given section.
+func (s *Section) NewKey(name, val string) (*Key, error) {
+	if len(name) == 0 {
+		return nil, errors.New("error creating new key: empty key name")
+	} else if s.f.options.Insensitive {
+		name = strings.ToLower(name)
+	}
+
+	if s.f.BlockMode {
+		s.f.lock.Lock()
+		defer s.f.lock.Unlock()
+	}
+
+	if inSlice(name, s.keyList) {
+		if s.f.options.AllowShadows {
+			if err := s.keys[name].addShadow(val); err != nil {
+				return nil, err
+			}
+		} else {
+			s.keys[name].value = val
+			s.keysHash[name] = val
+		}
+		return s.keys[name], nil
+	}
+
+	s.keyList = append(s.keyList, name)
+	s.keys[name] = newKey(s, name, val)
+	s.keysHash[name] = val
+	return s.keys[name], nil
+}
+
+// NewBooleanKey creates a new boolean type key to given section.
+func (s *Section) NewBooleanKey(name string) (*Key, error) {
+	key, err := s.NewKey(name, "true")
+	if err != nil {
+		return nil, err
+	}
+
+	key.isBooleanType = true
+	return key, nil
+}
+
+// GetKey returns key in section by given name.
+func (s *Section) GetKey(name string) (*Key, error) {
+	if s.f.BlockMode {
+		s.f.lock.RLock()
+	}
+	if s.f.options.Insensitive {
+		name = strings.ToLower(name)
+	}
+	key := s.keys[name]
+	if s.f.BlockMode {
+		s.f.lock.RUnlock()
+	}
+
+	if key == nil {
+		// Check if it is a child-section.
+		sname := s.name
+		for {
+			if i := strings.LastIndex(sname, "."); i > -1 {
+				sname = sname[:i]
+				sec, err := s.f.GetSection(sname)
+				if err != nil {
+					continue
+				}
+				return sec.GetKey(name)
+			}
+			break
+		}
+		return nil, fmt.Errorf("error when getting key of section '%s': key '%s' not exists", s.name, name)
+	}
+	return key, nil
+}
+
+// HasKey returns true if section contains a key with given name.
+func (s *Section) HasKey(name string) bool {
+	key, _ := s.GetKey(name)
+	return key != nil
+}
+
+// Deprecated: Use "HasKey" instead.
+func (s *Section) Haskey(name string) bool {
+	return s.HasKey(name)
+}
+
+// HasValue returns true if section contains given raw value.
+func (s *Section) HasValue(value string) bool {
+	if s.f.BlockMode {
+		s.f.lock.RLock()
+		defer s.f.lock.RUnlock()
+	}
+
+	for _, k := range s.keys {
+		if value == k.value {
+			return true
+		}
+	}
+	return false
+}
+
+// Key assumes named Key exists in section and returns a zero-value when not.
+func (s *Section) Key(name string) *Key {
+	key, err := s.GetKey(name)
+	if err != nil {
+		// It's OK here because the only possible error is empty key name,
+		// but if it's empty, this piece of code won't be executed.
+		key, _ = s.NewKey(name, "")
+		return key
+	}
+	return key
+}
+
+// Keys returns list of keys of section.
+func (s *Section) Keys() []*Key {
+	keys := make([]*Key, len(s.keyList))
+	for i := range s.keyList {
+		keys[i] = s.Key(s.keyList[i])
+	}
+	return keys
+}
+
+// ParentKeys returns list of keys of parent section.
+func (s *Section) ParentKeys() []*Key {
+	var parentKeys []*Key
+	sname := s.name
+	for {
+		if i := strings.LastIndex(sname, "."); i > -1 {
+			sname = sname[:i]
+			sec, err := s.f.GetSection(sname)
+			if err != nil {
+				continue
+			}
+			parentKeys = append(parentKeys, sec.Keys()...)
+		} else {
+			break
+		}
+
+	}
+	return parentKeys
+}
+
+// KeyStrings returns list of key names of section.
+func (s *Section) KeyStrings() []string {
+	list := make([]string, len(s.keyList))
+	copy(list, s.keyList)
+	return list
+}
+
+// KeysHash returns keys hash consisting of names and values.
+func (s *Section) KeysHash() map[string]string {
+	if s.f.BlockMode {
+		s.f.lock.RLock()
+		defer s.f.lock.RUnlock()
+	}
+
+	hash := map[string]string{}
+	for key, value := range s.keysHash {
+		hash[key] = value
+	}
+	return hash
+}
+
+// DeleteKey deletes a key from section.
+func (s *Section) DeleteKey(name string) {
+	if s.f.BlockMode {
+		s.f.lock.Lock()
+		defer s.f.lock.Unlock()
+	}
+
+	for i, k := range s.keyList {
+		if k == name {
+			s.keyList = append(s.keyList[:i], s.keyList[i+1:]...)
+			delete(s.keys, name)
+			delete(s.keysHash, name)
+			return
+		}
+	}
+}
+
+// ChildSections returns a list of child sections of current section.
+// For example, "[parent.child1]" and "[parent.child12]" are child sections
+// of section "[parent]".
+func (s *Section) ChildSections() []*Section {
+	prefix := s.name + "."
+	children := make([]*Section, 0, 3)
+	for _, name := range s.f.sectionList {
+		if strings.HasPrefix(name, prefix) {
+			children = append(children, s.f.sections[name])
+		}
+	}
+	return children
+}

vendor/gopkg.in/ini.v1/struct.go

@@ -0,0 +1,603 @@
+// Copyright 2014 Unknwon
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package ini
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+	"time"
+	"unicode"
+)
+
+// NameMapper represents a ini tag name mapper.
+type NameMapper func(string) string
+
+// Built-in name getters.
+var (
+	// SnackCase converts to format SNACK_CASE.
+	SnackCase NameMapper = func(raw string) string {
+		newstr := make([]rune, 0, len(raw))
+		for i, chr := range raw {
+			if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
+				if i > 0 {
+					newstr = append(newstr, '_')
+				}
+			}
+			newstr = append(newstr, unicode.ToUpper(chr))
+		}
+		return string(newstr)
+	}
+	// TitleUnderscore converts to format title_underscore.
+	TitleUnderscore NameMapper = func(raw string) string {
+		newstr := make([]rune, 0, len(raw))
+		for i, chr := range raw {
+			if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
+				if i > 0 {
+					newstr = append(newstr, '_')
+				}
+				chr -= 'A' - 'a'
+			}
+			newstr = append(newstr, chr)
+		}
+		return string(newstr)
+	}
+)
+
+func (s *Section) parseFieldName(raw, actual string) string {
+	if len(actual) > 0 {
+		return actual
+	}
+	if s.f.NameMapper != nil {
+		return s.f.NameMapper(raw)
+	}
+	return raw
+}
+
+func parseDelim(actual string) string {
+	if len(actual) > 0 {
+		return actual
+	}
+	return ","
+}
+
+var reflectTime = reflect.TypeOf(time.Now()).Kind()
+
+// setSliceWithProperType sets proper values to slice based on its type.
+func setSliceWithProperType(key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
+	var strs []string
+	if allowShadow {
+		strs = key.StringsWithShadows(delim)
+	} else {
+		strs = key.Strings(delim)
+	}
+
+	numVals := len(strs)
+	if numVals == 0 {
+		return nil
+	}
+
+	var vals interface{}
+	var err error
+
+	sliceOf := field.Type().Elem().Kind()
+	switch sliceOf {
+	case reflect.String:
+		vals = strs
+	case reflect.Int:
+		vals, err = key.parseInts(strs, true, false)
+	case reflect.Int64:
+		vals, err = key.parseInt64s(strs, true, false)
+	case reflect.Uint:
+		vals, err = key.parseUints(strs, true, false)
+	case reflect.Uint64:
+		vals, err = key.parseUint64s(strs, true, false)
+	case reflect.Float64:
+		vals, err = key.parseFloat64s(strs, true, false)
+	case reflect.Bool:
+		vals, err = key.parseBools(strs, true, false)
+	case reflectTime:
+		vals, err = key.parseTimesFormat(time.RFC3339, strs, true, false)
+	default:
+		return fmt.Errorf("unsupported type '[]%s'", sliceOf)
+	}
+	if err != nil && isStrict {
+		return err
+	}
+
+	slice := reflect.MakeSlice(field.Type(), numVals, numVals)
+	for i := 0; i < numVals; i++ {
+		switch sliceOf {
+		case reflect.String:
+			slice.Index(i).Set(reflect.ValueOf(vals.([]string)[i]))
+		case reflect.Int:
+			slice.Index(i).Set(reflect.ValueOf(vals.([]int)[i]))
+		case reflect.Int64:
+			slice.Index(i).Set(reflect.ValueOf(vals.([]int64)[i]))
+		case reflect.Uint:
+			slice.Index(i).Set(reflect.ValueOf(vals.([]uint)[i]))
+		case reflect.Uint64:
+			slice.Index(i).Set(reflect.ValueOf(vals.([]uint64)[i]))
+		case reflect.Float64:
+			slice.Index(i).Set(reflect.ValueOf(vals.([]float64)[i]))
+		case reflect.Bool:
+			slice.Index(i).Set(reflect.ValueOf(vals.([]bool)[i]))
+		case reflectTime:
+			slice.Index(i).Set(reflect.ValueOf(vals.([]time.Time)[i]))
+		}
+	}
+	field.Set(slice)
+	return nil
+}
+
+func wrapStrictError(err error, isStrict bool) error {
+	if isStrict {
+		return err
+	}
+	return nil
+}
+
+// setWithProperType sets proper value to field based on its type,
+// but it does not return error for failing parsing,
+// because we want to use default value that is already assigned to struct.
+func setWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
+	vt := t
+	isPtr := t.Kind() == reflect.Ptr
+	if isPtr {
+		vt = t.Elem()
+	}
+	switch vt.Kind() {
+	case reflect.String:
+		stringVal := key.String()
+		if isPtr {
+			field.Set(reflect.ValueOf(&stringVal))
+		} else if len(stringVal) > 0 {
+			field.SetString(key.String())
+		}
+	case reflect.Bool:
+		boolVal, err := key.Bool()
+		if err != nil {
+			return wrapStrictError(err, isStrict)
+		}
+		if isPtr {
+			field.Set(reflect.ValueOf(&boolVal))
+		} else {
+			field.SetBool(boolVal)
+		}
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		// ParseDuration will not return err for `0`, so check the type name
+		if vt.Name() == "Duration" {
+			durationVal, err := key.Duration()
+			if err != nil {
+				return wrapStrictError(err, isStrict)
+			}
+			if isPtr {
+				field.Set(reflect.ValueOf(&durationVal))
+			} else if int64(durationVal) > 0 {
+				field.Set(reflect.ValueOf(durationVal))
+			}
+			return nil
+		}
+
+		intVal, err := key.Int64()
+		if err != nil {
+			return wrapStrictError(err, isStrict)
+		}
+		if isPtr {
+			pv := reflect.New(t.Elem())
+			pv.Elem().SetInt(intVal)
+			field.Set(pv)
+		} else {
+			field.SetInt(intVal)
+		}
+	//	byte is an alias for uint8, so supporting uint8 breaks support for byte
+	case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		durationVal, err := key.Duration()
+		// Skip zero value
+		if err == nil && uint64(durationVal) > 0 {
+			if isPtr {
+				field.Set(reflect.ValueOf(&durationVal))
+			} else {
+				field.Set(reflect.ValueOf(durationVal))
+			}
+			return nil
+		}
+
+		uintVal, err := key.Uint64()
+		if err != nil {
+			return wrapStrictError(err, isStrict)
+		}
+		if isPtr {
+			pv := reflect.New(t.Elem())
+			pv.Elem().SetUint(uintVal)
+			field.Set(pv)
+		} else {
+			field.SetUint(uintVal)
+		}
+
+	case reflect.Float32, reflect.Float64:
+		floatVal, err := key.Float64()
+		if err != nil {
+			return wrapStrictError(err, isStrict)
+		}
+		if isPtr {
+			pv := reflect.New(t.Elem())
+			pv.Elem().SetFloat(floatVal)
+			field.Set(pv)
+		} else {
+			field.SetFloat(floatVal)
+		}
+	case reflectTime:
+		timeVal, err := key.Time()
+		if err != nil {
+			return wrapStrictError(err, isStrict)
+		}
+		if isPtr {
+			field.Set(reflect.ValueOf(&timeVal))
+		} else {
+			field.Set(reflect.ValueOf(timeVal))
+		}
+	case reflect.Slice:
+		return setSliceWithProperType(key, field, delim, allowShadow, isStrict)
+	default:
+		return fmt.Errorf("unsupported type '%s'", t)
+	}
+	return nil
+}
+
+func parseTagOptions(tag string) (rawName string, omitEmpty bool, allowShadow bool) {
+	opts := strings.SplitN(tag, ",", 3)
+	rawName = opts[0]
+	if len(opts) > 1 {
+		omitEmpty = opts[1] == "omitempty"
+	}
+	if len(opts) > 2 {
+		allowShadow = opts[2] == "allowshadow"
+	}
+	return rawName, omitEmpty, allowShadow
+}
+
+func (s *Section) mapTo(val reflect.Value, isStrict bool) error {
+	if val.Kind() == reflect.Ptr {
+		val = val.Elem()
+	}
+	typ := val.Type()
+
+	for i := 0; i < typ.NumField(); i++ {
+		field := val.Field(i)
+		tpField := typ.Field(i)
+
+		tag := tpField.Tag.Get("ini")
+		if tag == "-" {
+			continue
+		}
+
+		rawName, _, allowShadow := parseTagOptions(tag)
+		fieldName := s.parseFieldName(tpField.Name, rawName)
+		if len(fieldName) == 0 || !field.CanSet() {
+			continue
+		}
+
+		isStruct := tpField.Type.Kind() == reflect.Struct
+		isStructPtr := tpField.Type.Kind() == reflect.Ptr && tpField.Type.Elem().Kind() == reflect.Struct
+		isAnonymous := tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous
+		if isAnonymous {
+			field.Set(reflect.New(tpField.Type.Elem()))
+		}
+
+		if isAnonymous || isStruct || isStructPtr {
+			if sec, err := s.f.GetSection(fieldName); err == nil {
+				// Only set the field to non-nil struct value if we have
+				// a section for it. Otherwise, we end up with a non-nil
+				// struct ptr even though there is no data.
+				if isStructPtr && field.IsNil() {
+					field.Set(reflect.New(tpField.Type.Elem()))
+				}
+				if err = sec.mapTo(field, isStrict); err != nil {
+					return fmt.Errorf("error mapping field(%s): %v", fieldName, err)
+				}
+				continue
+			}
+		}
+		if key, err := s.GetKey(fieldName); err == nil {
+			delim := parseDelim(tpField.Tag.Get("delim"))
+			if err = setWithProperType(tpField.Type, key, field, delim, allowShadow, isStrict); err != nil {
+				return fmt.Errorf("error mapping field(%s): %v", fieldName, err)
+			}
+		}
+	}
+	return nil
+}
+
+// MapTo maps section to given struct.
+func (s *Section) MapTo(v interface{}) error {
+	typ := reflect.TypeOf(v)
+	val := reflect.ValueOf(v)
+	if typ.Kind() == reflect.Ptr {
+		typ = typ.Elem()
+		val = val.Elem()
+	} else {
+		return errors.New("cannot map to non-pointer struct")
+	}
+
+	return s.mapTo(val, false)
+}
+
+// StrictMapTo maps section to given struct in strict mode,
+// which returns all possible error including value parsing error.
+func (s *Section) StrictMapTo(v interface{}) error {
+	typ := reflect.TypeOf(v)
+	val := reflect.ValueOf(v)
+	if typ.Kind() == reflect.Ptr {
+		typ = typ.Elem()
+		val = val.Elem()
+	} else {
+		return errors.New("cannot map to non-pointer struct")
+	}
+
+	return s.mapTo(val, true)
+}
+
+// MapTo maps file to given struct.
+func (f *File) MapTo(v interface{}) error {
+	return f.Section("").MapTo(v)
+}
+
+// StrictMapTo maps file to given struct in strict mode,
+// which returns all possible error including value parsing error.
+func (f *File) StrictMapTo(v interface{}) error {
+	return f.Section("").StrictMapTo(v)
+}
+
+// MapToWithMapper maps data sources to given struct with name mapper.
+func MapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error {
+	cfg, err := Load(source, others...)
+	if err != nil {
+		return err
+	}
+	cfg.NameMapper = mapper
+	return cfg.MapTo(v)
+}
+
+// StrictMapToWithMapper maps data sources to given struct with name mapper in strict mode,
+// which returns all possible error including value parsing error.
+func StrictMapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error {
+	cfg, err := Load(source, others...)
+	if err != nil {
+		return err
+	}
+	cfg.NameMapper = mapper
+	return cfg.StrictMapTo(v)
+}
+
+// MapTo maps data sources to given struct.
+func MapTo(v, source interface{}, others ...interface{}) error {
+	return MapToWithMapper(v, nil, source, others...)
+}
+
+// StrictMapTo maps data sources to given struct in strict mode,
+// which returns all possible error including value parsing error.
+func StrictMapTo(v, source interface{}, others ...interface{}) error {
+	return StrictMapToWithMapper(v, nil, source, others...)
+}
+
+// reflectSliceWithProperType does the opposite thing as setSliceWithProperType.
+func reflectSliceWithProperType(key *Key, field reflect.Value, delim string, allowShadow bool) error {
+	slice := field.Slice(0, field.Len())
+	if field.Len() == 0 {
+		return nil
+	}
+	sliceOf := field.Type().Elem().Kind()
+
+	if allowShadow {
+		var keyWithShadows *Key
+		for i := 0; i < field.Len(); i++ {
+			var val string
+			switch sliceOf {
+			case reflect.String:
+				val = slice.Index(i).String()
+			case reflect.Int, reflect.Int64:
+				val = fmt.Sprint(slice.Index(i).Int())
+			case reflect.Uint, reflect.Uint64:
+				val = fmt.Sprint(slice.Index(i).Uint())
+			case reflect.Float64:
+				val = fmt.Sprint(slice.Index(i).Float())
+			case reflect.Bool:
+				val = fmt.Sprint(slice.Index(i).Bool())
+			case reflectTime:
+				val = slice.Index(i).Interface().(time.Time).Format(time.RFC3339)
+			default:
+				return fmt.Errorf("unsupported type '[]%s'", sliceOf)
+			}
+
+			if i == 0 {
+				keyWithShadows = newKey(key.s, key.name, val)
+			} else {
+				keyWithShadows.AddShadow(val)
+			}
+		}
+		key = keyWithShadows
+		return nil
+	}
+
+	var buf bytes.Buffer
+	for i := 0; i < field.Len(); i++ {
+		switch sliceOf {
+		case reflect.String:
+			buf.WriteString(slice.Index(i).String())
+		case reflect.Int, reflect.Int64:
+			buf.WriteString(fmt.Sprint(slice.Index(i).Int()))
+		case reflect.Uint, reflect.Uint64:
+			buf.WriteString(fmt.Sprint(slice.Index(i).Uint()))
+		case reflect.Float64:
+			buf.WriteString(fmt.Sprint(slice.Index(i).Float()))
+		case reflect.Bool:
+			buf.WriteString(fmt.Sprint(slice.Index(i).Bool()))
+		case reflectTime:
+			buf.WriteString(slice.Index(i).Interface().(time.Time).Format(time.RFC3339))
+		default:
+			return fmt.Errorf("unsupported type '[]%s'", sliceOf)
+		}
+		buf.WriteString(delim)
+	}
+	key.SetValue(buf.String()[:buf.Len()-len(delim)])
+	return nil
+}
+
+// reflectWithProperType does the opposite thing as setWithProperType.
+func reflectWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string, allowShadow bool) error {
+	switch t.Kind() {
+	case reflect.String:
+		key.SetValue(field.String())
+	case reflect.Bool:
+		key.SetValue(fmt.Sprint(field.Bool()))
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		key.SetValue(fmt.Sprint(field.Int()))
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		key.SetValue(fmt.Sprint(field.Uint()))
+	case reflect.Float32, reflect.Float64:
+		key.SetValue(fmt.Sprint(field.Float()))
+	case reflectTime:
+		key.SetValue(fmt.Sprint(field.Interface().(time.Time).Format(time.RFC3339)))
+	case reflect.Slice:
+		return reflectSliceWithProperType(key, field, delim, allowShadow)
+	case reflect.Ptr:
+		if !field.IsNil() {
+			return reflectWithProperType(t.Elem(), key, field.Elem(), delim, allowShadow)
+		}
+	default:
+		return fmt.Errorf("unsupported type '%s'", t)
+	}
+	return nil
+}
+
+// CR: copied from encoding/json/encode.go with modifications of time.Time support.
+// TODO: add more test coverage.
+func isEmptyValue(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
+		return v.Len() == 0
+	case reflect.Bool:
+		return !v.Bool()
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.Interface, reflect.Ptr:
+		return v.IsNil()
+	case reflectTime:
+		t, ok := v.Interface().(time.Time)
+		return ok && t.IsZero()
+	}
+	return false
+}
+
+func (s *Section) reflectFrom(val reflect.Value) error {
+	if val.Kind() == reflect.Ptr {
+		val = val.Elem()
+	}
+	typ := val.Type()
+
+	for i := 0; i < typ.NumField(); i++ {
+		field := val.Field(i)
+		tpField := typ.Field(i)
+
+		tag := tpField.Tag.Get("ini")
+		if tag == "-" {
+			continue
+		}
+
+		rawName, omitEmpty, allowShadow := parseTagOptions(tag)
+		if omitEmpty && isEmptyValue(field) {
+			continue
+		}
+
+		fieldName := s.parseFieldName(tpField.Name, rawName)
+		if len(fieldName) == 0 || !field.CanSet() {
+			continue
+		}
+
+		if (tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous) ||
+			(tpField.Type.Kind() == reflect.Struct && tpField.Type.Name() != "Time") {
+			// Note: The only error here is section doesn't exist.
+			sec, err := s.f.GetSection(fieldName)
+			if err != nil {
+				// Note: fieldName can never be empty here, ignore error.
+				sec, _ = s.f.NewSection(fieldName)
+			}
+
+			// Add comment from comment tag
+			if len(sec.Comment) == 0 {
+				sec.Comment = tpField.Tag.Get("comment")
+			}
+
+			if err = sec.reflectFrom(field); err != nil {
+				return fmt.Errorf("error reflecting field (%s): %v", fieldName, err)
+			}
+			continue
+		}
+
+		// Note: Same reason as secion.
+		key, err := s.GetKey(fieldName)
+		if err != nil {
+			key, _ = s.NewKey(fieldName, "")
+		}
+
+		// Add comment from comment tag
+		if len(key.Comment) == 0 {
+			key.Comment = tpField.Tag.Get("comment")
+		}
+
+		if err = reflectWithProperType(tpField.Type, key, field, parseDelim(tpField.Tag.Get("delim")), allowShadow); err != nil {
+			return fmt.Errorf("error reflecting field (%s): %v", fieldName, err)
+		}
+
+	}
+	return nil
+}
+
+// ReflectFrom reflects secion from given struct.
+func (s *Section) ReflectFrom(v interface{}) error {
+	typ := reflect.TypeOf(v)
+	val := reflect.ValueOf(v)
+	if typ.Kind() == reflect.Ptr {
+		typ = typ.Elem()
+		val = val.Elem()
+	} else {
+		return errors.New("cannot reflect from non-pointer struct")
+	}
+
+	return s.reflectFrom(val)
+}
+
+// ReflectFrom reflects file from given struct.
+func (f *File) ReflectFrom(v interface{}) error {
+	return f.Section("").ReflectFrom(v)
+}
+
+// ReflectFromWithMapper reflects data sources from given struct with name mapper.
+func ReflectFromWithMapper(cfg *File, v interface{}, mapper NameMapper) error {
+	cfg.NameMapper = mapper
+	return cfg.ReflectFrom(v)
+}
+
+// ReflectFrom reflects data sources from given struct.
+func ReflectFrom(cfg *File, v interface{}) error {
+	return ReflectFromWithMapper(cfg, v, nil)
+}

vendor/modules.txt

@@ -108,7 +108,7 @@ github.com/laurent22/ical-go
 github.com/lib/pq
 github.com/lib/pq/oid
 github.com/lib/pq/scram
-# github.com/magiconair/properties v1.8.0
+# github.com/magiconair/properties v1.8.1
 github.com/magiconair/properties
 # github.com/mailru/easyjson v0.7.0
 github.com/mailru/easyjson/buffer
@@ -182,10 +182,12 @@ github.com/spf13/cobra
 github.com/spf13/jwalterweatherman
 # github.com/spf13/pflag v1.0.5
 github.com/spf13/pflag
-# github.com/spf13/viper v1.3.2
+# github.com/spf13/viper v1.6.2
 github.com/spf13/viper
 # github.com/stretchr/testify v1.4.0
 github.com/stretchr/testify/assert
+# github.com/subosito/gotenv v1.2.0
+github.com/subosito/gotenv
 # github.com/swaggo/swag v1.6.3
 github.com/swaggo/swag
 github.com/swaggo/swag/cmd/swag
@@ -247,6 +249,8 @@ gopkg.in/alexcesaro/quotedprintable.v3
 gopkg.in/d4l3k/messagediff.v1
 # gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df
 gopkg.in/gomail.v2
+# gopkg.in/ini.v1 v1.51.0
+gopkg.in/ini.v1
 # gopkg.in/yaml.v2 v2.2.7
 gopkg.in/yaml.v2
 # honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a