8000 go-tools/lint/generated.go at 2019.1 · dominikh/go-tools · GitHub
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generated.go

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package lint
import (
"bufio"
"bytes"
"io"
)
var (
prefix = []byte("// Code generated ")
suffix = []byte(" DO NOT EDIT.")
nl = []byte("\n")
crnl = []byte("\r\n")
)
func isGenerated(r io.Reader) bool {
br := bufio.NewReader(r)
for {
s, err := br.ReadBytes('\n')
if err != nil && err != io.EOF {
return false
}
s = bytes.TrimSuffix(s, crnl)
s = bytes.TrimSuffix(s, nl)
if bytes.HasPrefix(s, prefix) && bytes.HasSuffix(s, suffix) {
return true
}
if err == io.EOF {
break
}
}
return false
}
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