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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package checks
import (
"regexp"
"strings"
"golang.org/x/tools/go/analysis"
)
var (
header = regexp.MustCompile(`.*Copyright.*\d{4}.*(Gitea|Gogs)`)
goGenerate = "//go:generate"
buildTag = "// +build"
)
var License = &analysis.Analyzer{
Name: "license",
Doc: "check for a copyright header",
Run: runLicense,
}
func runLicense(pass *analysis.Pass) (interface{}, error) {
for _, file := range pass.Files {
if len(file.Comments) == 0 {
pass.Reportf(file.Pos(), "Copyright not found")
continue
}
if len(file.Comments[0].List) == 0 {
pass.Reportf(file.Pos(), "Copyright not found or wrong")
continue
}
commentGroup := 0
if strings.HasPrefix(file.Comments[0].List[0].Text, goGenerate) {
if len(file.Comments[0].List) > 1 {
pass.Reportf(file.Pos(), "Must be an empty line between the go:generate and the Copyright")
continue
}
commentGroup++
}
if strings.HasPrefix(file.Comments[0].List[0].Text, buildTag) {
commentGroup++
}
if len(file.Comments) < commentGroup+1 {
pass.Reportf(file.Pos(), "Copyright not found")
continue
}
if len(file.Comments[commentGroup].List) < 1 {
pass.Reportf(file.Pos(), "Copyright not found or wrong")
continue
}
var check bool
for _, comment := range file.Comments[commentGroup].List {
if header.MatchString(comment.Text) {
check = true
}
}
if !check {
pass.Reportf(file.Pos(), "Copyright did not match check")
}
}
return nil, nil
}
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