39 lines
666 B
Go
39 lines
666 B
Go
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package lint
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import (
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"bufio"
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"bytes"
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"io"
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)
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var (
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// used by cgo before Go 1.11
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oldCgo = []byte("// Created by cgo - DO NOT EDIT")
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prefix = []byte("// Code generated ")
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suffix = []byte(" DO NOT EDIT.")
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nl = []byte("\n")
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crnl = []byte("\r\n")
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)
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func isGenerated(r io.Reader) bool {
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br := bufio.NewReader(r)
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for {
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s, err := br.ReadBytes('\n')
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if err != nil && err != io.EOF {
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return false
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}
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s = bytes.TrimSuffix(s, crnl)
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s = bytes.TrimSuffix(s, nl)
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if bytes.HasPrefix(s, prefix) && bytes.HasSuffix(s, suffix) {
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return true
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}
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if bytes.Equal(s, oldCgo) {
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return true
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}
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if err == io.EOF {
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break
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}
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}
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return false
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}
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