ea1afb945d
Replace #22117. Implement it in a more maintainable way. Some licenses have placeholders e.g. the BSD licenses start with this line: ``` Copyright (c) <year> <owner>. ``` This PR replaces the placeholders with the correct value when initialize a new repo. ### FAQ - Why not use a regex? It will be a pretty complicated regex which could be hard to maintain. - There're still missing placeholders. There are over 500 licenses, it's impossible for anyone to inspect all of them alone. Please help to add them if you find any, and it is also OK to leave them for the future. --------- Co-authored-by: Giteabot <teabot@gitea.io>
123 lines
2.8 KiB
Go
123 lines
2.8 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go:build ignore
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package main
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import (
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"encoding/json"
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"fmt"
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"io/fs"
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"os"
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"path"
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"path/filepath"
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"regexp"
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"sort"
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"strings"
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)
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// regexp is based on go-license, excluding README and NOTICE
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// https://github.com/google/go-licenses/blob/master/licenses/find.go
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var licenseRe = regexp.MustCompile(`^(?i)((UN)?LICEN(S|C)E|COPYING).*$`)
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type LicenseEntry struct {
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Name string `json:"name"`
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Path string `json:"path"`
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LicenseText string `json:"licenseText"`
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}
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func main() {
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if len(os.Args) != 3 {
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fmt.Println("usage: go run generate-go-licenses.go <base-dir> <out-json-file>")
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os.Exit(1)
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}
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base, out := os.Args[1], os.Args[2]
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// Add ext for excluded files because license_test.go will be included for some reason.
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// And there are more files that should be excluded, check with:
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//
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// go run github.com/google/go-licenses@v1.6.0 save . --force --save_path=.go-licenses 2>/dev/null
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// find .go-licenses -type f | while read FILE; do echo "${$(basename $FILE)##*.}"; done | sort -u
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// AUTHORS
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// COPYING
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// LICENSE
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// Makefile
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// NOTICE
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// gitignore
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// go
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// md
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// mod
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// sum
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// toml
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// txt
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// yml
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//
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// It could be removed once we have a better regex.
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excludedExt := map[string]bool{
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".gitignore": true,
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".go": true,
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".mod": true,
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".sum": true,
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".toml": true,
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".yml": true,
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}
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var paths []string
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err := filepath.WalkDir(base, func(path string, entry fs.DirEntry, err error) error {
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if err != nil {
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return err
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}
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if entry.IsDir() || !licenseRe.MatchString(entry.Name()) || excludedExt[filepath.Ext(entry.Name())] {
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return nil
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}
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paths = append(paths, path)
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return nil
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})
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if err != nil {
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panic(err)
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}
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sort.Strings(paths)
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var entries []LicenseEntry
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for _, filePath := range paths {
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licenseText, err := os.ReadFile(filePath)
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if err != nil {
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panic(err)
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}
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pkgPath := filepath.ToSlash(filePath)
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pkgPath = strings.TrimPrefix(pkgPath, base+"/")
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pkgName := path.Dir(pkgPath)
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// There might be a bug somewhere in go-licenses that sometimes interprets the
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// root package as "." and sometimes as "code.gitea.io/gitea". Workaround by
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// removing both of them for the sake of stable output.
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if pkgName == "." || pkgName == "code.gitea.io/gitea" {
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continue
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}
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entries = append(entries, LicenseEntry{
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Name: pkgName,
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Path: pkgPath,
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LicenseText: string(licenseText),
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})
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}
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jsonBytes, err := json.MarshalIndent(entries, "", " ")
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if err != nil {
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panic(err)
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}
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// Ensure file has a final newline
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if jsonBytes[len(jsonBytes)-1] != '\n' {
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jsonBytes = append(jsonBytes, '\n')
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}
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err = os.WriteFile(out, jsonBytes, 0o644)
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if err != nil {
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panic(err)
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}
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}
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