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gitea/build/generate-go-licenses.go

75 lines
1.5 KiB

// Copyright 2022 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.
//go:build ignore
package main
import (
"encoding/json"
"io/fs"
"os"
"path/filepath"
"regexp"
"sort"
"strings"
)
// regexp is based on go-license, excluding README and NOTICE
// https://github.com/google/go-licenses/blob/master/licenses/find.go
var licenseRe = regexp.MustCompile(`^(?i)((UN)?LICEN(S|C)E|COPYING).*$`)
type LicenseEntry struct {
Name string `json:"name"`
Path string `json:"path"`
LicenseText string `json:"licenseText"`
}
func main() {
base, out := os.Args[1], os.Args[2]
paths := []string{}
err := filepath.WalkDir(base, func(path string, entry fs.DirEntry, err error) error {
if err != nil {
return err
}
if entry.IsDir() || !licenseRe.MatchString(entry.Name()) {
return nil
}
paths = append(paths, path)
return nil
})
if err != nil {
panic(err)
}
sort.Strings(paths)
entries := []LicenseEntry{}
for _, path := range paths {
licenseText, err := os.ReadFile(path)
if err != nil {
panic(err)
}
path := strings.Replace(path, base+string(os.PathSeparator), "", 1)
entries = append(entries, LicenseEntry{
Name: filepath.Dir(path),
Path: path,
LicenseText: string(licenseText),
})
}
jsonBytes, err := json.MarshalIndent(entries, "", " ")
if err != nil {
panic(err)
}
err = os.WriteFile(out, jsonBytes, 0o644)
if err != nil {
panic(err)
}
}