forked from gitea/gitea
291 lines
7.2 KiB
Go
291 lines
7.2 KiB
Go
// Copyright 2021 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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"fmt"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"regexp"
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"strconv"
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"strings"
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"code.gitea.io/gitea/build/codeformat"
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)
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// Windows has a limitation for command line arguments, the size can not exceed 32KB.
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// So we have to feed the files to some tools (like gofmt) batch by batch
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// We also introduce a `gitea-fmt` command, it does better import formatting than gofmt/goimports. `gitea-fmt` calls `gofmt` internally.
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var optionLogVerbose bool
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func logVerbose(msg string, args ...interface{}) {
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if optionLogVerbose {
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log.Printf(msg, args...)
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}
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}
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func passThroughCmd(cmd string, args []string) error {
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foundCmd, err := exec.LookPath(cmd)
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if err != nil {
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log.Fatalf("can not find cmd: %s", cmd)
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}
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c := exec.Cmd{
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Path: foundCmd,
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Args: append([]string{cmd}, args...),
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Stdin: os.Stdin,
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Stdout: os.Stdout,
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Stderr: os.Stderr,
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}
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return c.Run()
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}
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type fileCollector struct {
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dirs []string
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includePatterns []*regexp.Regexp
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excludePatterns []*regexp.Regexp
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batchSize int
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}
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func newFileCollector(fileFilter string, batchSize int) (*fileCollector, error) {
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co := &fileCollector{batchSize: batchSize}
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if fileFilter == "go-own" {
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co.dirs = []string{
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"build",
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"cmd",
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"contrib",
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"tests",
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"models",
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"modules",
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"routers",
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"services",
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}
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co.includePatterns = append(co.includePatterns, regexp.MustCompile(`.*\.go$`))
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co.excludePatterns = append(co.excludePatterns, regexp.MustCompile(`.*\bbindata\.go$`))
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co.excludePatterns = append(co.excludePatterns, regexp.MustCompile(`tests/gitea-repositories-meta`))
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co.excludePatterns = append(co.excludePatterns, regexp.MustCompile(`tests/integration/migration-test`))
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co.excludePatterns = append(co.excludePatterns, regexp.MustCompile(`modules/git/tests`))
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co.excludePatterns = append(co.excludePatterns, regexp.MustCompile(`models/fixtures`))
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co.excludePatterns = append(co.excludePatterns, regexp.MustCompile(`models/migrations/fixtures`))
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co.excludePatterns = append(co.excludePatterns, regexp.MustCompile(`services/gitdiff/testdata`))
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}
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if co.dirs == nil {
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return nil, fmt.Errorf("unknown file-filter: %s", fileFilter)
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}
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return co, nil
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}
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func (fc *fileCollector) matchPatterns(path string, regexps []*regexp.Regexp) bool {
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path = strings.ReplaceAll(path, "\\", "/")
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for _, re := range regexps {
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if re.MatchString(path) {
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return true
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}
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}
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return false
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}
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func (fc *fileCollector) collectFiles() (res [][]string, err error) {
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var batch []string
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for _, dir := range fc.dirs {
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err = filepath.WalkDir(dir, func(path string, d os.DirEntry, err error) error {
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include := len(fc.includePatterns) == 0 || fc.matchPatterns(path, fc.includePatterns)
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exclude := fc.matchPatterns(path, fc.excludePatterns)
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process := include && !exclude
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if !process {
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if d.IsDir() {
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if exclude {
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logVerbose("exclude dir %s", path)
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return filepath.SkipDir
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}
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// for a directory, if it is not excluded explicitly, we should walk into
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return nil
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}
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// for a file, we skip it if it shouldn't be processed
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logVerbose("skip process %s", path)
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return nil
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}
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if d.IsDir() {
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// skip dir, we don't add dirs to the file list now
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return nil
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}
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if len(batch) >= fc.batchSize {
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res = append(res, batch)
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batch = nil
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}
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batch = append(batch, path)
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return nil
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})
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if err != nil {
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return nil, err
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}
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}
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res = append(res, batch)
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return res, nil
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}
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// substArgFiles expands the {file-list} to a real file list for commands
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func substArgFiles(args, files []string) []string {
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for i, s := range args {
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if s == "{file-list}" {
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newArgs := append(args[:i], files...)
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newArgs = append(newArgs, args[i+1:]...)
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return newArgs
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}
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}
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return args
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}
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func exitWithCmdErrors(subCmd string, subArgs []string, cmdErrors []error) {
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for _, err := range cmdErrors {
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if err != nil {
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if exitError, ok := err.(*exec.ExitError); ok {
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exitCode := exitError.ExitCode()
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log.Printf("run command failed (code=%d): %s %v", exitCode, subCmd, subArgs)
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os.Exit(exitCode)
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} else {
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log.Fatalf("run command failed (err=%s) %s %v", err, subCmd, subArgs)
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}
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}
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}
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}
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func parseArgs() (mainOptions map[string]string, subCmd string, subArgs []string) {
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mainOptions = map[string]string{}
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for i := 1; i < len(os.Args); i++ {
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arg := os.Args[i]
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if arg == "" {
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break
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}
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if arg[0] == '-' {
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arg = strings.TrimPrefix(arg, "-")
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arg = strings.TrimPrefix(arg, "-")
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fields := strings.SplitN(arg, "=", 2)
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if len(fields) == 1 {
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mainOptions[fields[0]] = "1"
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} else {
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mainOptions[fields[0]] = fields[1]
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}
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} else {
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subCmd = arg
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subArgs = os.Args[i+1:]
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break
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}
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}
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return
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}
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func showUsage() {
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fmt.Printf(`Usage: %[1]s [options] {command} [arguments]
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Options:
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--verbose
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--file-filter=go-own
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--batch-size=100
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Commands:
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%[1]s gofmt ...
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Arguments:
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{file-list} the file list
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Example:
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%[1]s gofmt -s -d {file-list}
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`, "file-batch-exec")
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}
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func getGoVersion() string {
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goModFile, err := os.ReadFile("go.mod")
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if err != nil {
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log.Fatalf(`Faild to read "go.mod": %v`, err)
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os.Exit(1)
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}
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goModVersionRegex := regexp.MustCompile(`go \d+\.\d+`)
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goModVersionLine := goModVersionRegex.Find(goModFile)
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return string(goModVersionLine[3:])
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}
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func newFileCollectorFromMainOptions(mainOptions map[string]string) (fc *fileCollector, err error) {
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fileFilter := mainOptions["file-filter"]
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if fileFilter == "" {
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fileFilter = "go-own"
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}
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batchSize, _ := strconv.Atoi(mainOptions["batch-size"])
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if batchSize == 0 {
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batchSize = 100
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}
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return newFileCollector(fileFilter, batchSize)
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}
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func containsString(a []string, s string) bool {
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for _, v := range a {
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if v == s {
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return true
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}
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}
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return false
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}
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func giteaFormatGoImports(files []string, doWriteFile bool) error {
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for _, file := range files {
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if err := codeformat.FormatGoImports(file, doWriteFile); err != nil {
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log.Printf("failed to format go imports: %s, err=%v", file, err)
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return err
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}
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}
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return nil
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}
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func main() {
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mainOptions, subCmd, subArgs := parseArgs()
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if subCmd == "" {
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showUsage()
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os.Exit(1)
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}
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optionLogVerbose = mainOptions["verbose"] != ""
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fc, err := newFileCollectorFromMainOptions(mainOptions)
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if err != nil {
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log.Fatalf("can not create file collector: %s", err.Error())
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}
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fileBatches, err := fc.collectFiles()
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if err != nil {
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log.Fatalf("can not collect files: %s", err.Error())
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}
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processed := 0
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var cmdErrors []error
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for _, files := range fileBatches {
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if len(files) == 0 {
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break
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}
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substArgs := substArgFiles(subArgs, files)
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logVerbose("batch cmd: %s %v", subCmd, substArgs)
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switch subCmd {
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case "gitea-fmt":
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if containsString(subArgs, "-d") {
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log.Print("the -d option is not supported by gitea-fmt")
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}
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cmdErrors = append(cmdErrors, giteaFormatGoImports(files, containsString(subArgs, "-w")))
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cmdErrors = append(cmdErrors, passThroughCmd("go", append([]string{"run", os.Getenv("GOFUMPT_PACKAGE"), "-extra", "-lang", getGoVersion()}, substArgs...)))
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default:
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log.Fatalf("unknown cmd: %s %v", subCmd, subArgs)
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}
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processed += len(files)
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}
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logVerbose("processed %d files", processed)
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exitWithCmdErrors(subCmd, subArgs, cmdErrors)
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}
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