forgejo/build/generate-go-licenses.go
silverwind b5d21c0adf
Generate go-licenses during tidy again (#21108)
We can not have the `frontend` target depend on golang because of they
way drone is set up. Move the `go-licenses` generation back into `tidy`
where it will now also be checked for consistency during `tidy-check`.

(I assume all `main` branch builds should currently fail [like
this](https://drone.gitea.io/go-gitea/gitea/60244/1/11)).

The reasony why it shouldn't be treated the same as for example `go
generate` is because output files are checked in. tidy is imho the
optimal target to run this after.

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2022-09-09 11:33:01 -04:00

82 lines
1.8 KiB
Go

// 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)
name := filepath.Dir(path)
// There might be a bug somewhere in go-licenses that sometimes interprets the
// root package as "." and sometimes as "code.gitea.io/gitea". Workaround by
// removing both of them for the sake of stable output.
if name == "." || name == "code.gitea.io/gitea" {
continue
}
entries = append(entries, LicenseEntry{
Name: name,
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)
}
}