Remove ConfigRemoveAbandonedFilesUnder. am: f99e89c147
Original change: https://android-review.googlesource.com/c/platform/build/blueprint/+/1817977 Change-Id: I78ad77bcf99c77e372c3e2cf6c3b207df9965daa
This commit is contained in:
Lukacs T. Berki
Automerger Merge Worker
commit
6a48d308a6
4 changed files with 0 additions and 196 deletions
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@ -113,7 +113,6 @@ bootstrap_go_package {
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pkgPath: "github.com/google/blueprint/bootstrap",
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srcs: [
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"bootstrap/bootstrap.go",
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"bootstrap/cleanup.go",
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"bootstrap/command.go",
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"bootstrap/config.go",
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"bootstrap/glob.go",
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@ -1,177 +0,0 @@
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// Copyright 2014 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package bootstrap
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import (
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"bufio"
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"syscall"
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"github.com/google/blueprint"
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)
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const logFileName = ".ninja_log"
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// removeAbandonedFilesUnder removes any files that appear in the Ninja log, and
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// are prefixed with one of the `under` entries, but that are not currently
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// build targets, or in `exempt`
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func removeAbandonedFilesUnder(ctx *blueprint.Context,
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srcDir, buildDir string, under, exempt []string) error {
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if len(under) == 0 {
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return nil
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}
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outDir, err := ctx.OutDir()
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if err != nil {
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return err
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}
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targetRules, err := ctx.AllTargets()
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if err != nil {
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return fmt.Errorf("error determining target list: %s", err)
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}
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replacer := strings.NewReplacer(
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"@@SrcDir@@", srcDir,
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"@@BuildDir@@", buildDir)
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outDir = replacer.Replace(outDir)
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targets := make(map[string]bool)
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for target := range targetRules {
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replacedTarget := replacer.Replace(target)
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targets[filepath.Clean(replacedTarget)] = true
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}
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for _, target := range exempt {
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replacedTarget := replacer.Replace(target)
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targets[filepath.Clean(replacedTarget)] = true
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}
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filePaths, err := parseNinjaLog(outDir, under)
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if err != nil {
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return err
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}
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for _, filePath := range filePaths {
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isTarget := targets[filePath]
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if !isTarget {
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err = removeFileAndEmptyDirs(joinPath(ctx.SrcDir(), filePath))
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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func parseNinjaLog(outDir string, under []string) ([]string, error) {
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logFilePath := filepath.Join(outDir, logFileName)
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logFile, err := os.Open(logFilePath)
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if err != nil {
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if os.IsNotExist(err) {
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return nil, nil
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}
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return nil, err
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}
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defer logFile.Close()
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scanner := bufio.NewScanner(logFile)
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// Check that the first line indicates that this is a Ninja log version 5
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const expectedFirstLine = "# ninja log v5"
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if !scanner.Scan() || scanner.Text() != expectedFirstLine {
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return nil, errors.New("unrecognized ninja log format")
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}
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var filePaths []string
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for scanner.Scan() {
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line := scanner.Text()
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if strings.HasPrefix(line, "#") {
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continue
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}
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const fieldSeperator = "\t"
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fields := strings.Split(line, fieldSeperator)
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const precedingFields = 3
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const followingFields = 1
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if len(fields) < precedingFields+followingFields+1 {
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return nil, fmt.Errorf("log entry has too few fields: %q", line)
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}
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start := precedingFields
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end := len(fields) - followingFields
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filePath := strings.Join(fields[start:end], fieldSeperator)
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for _, dir := range under {
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if strings.HasPrefix(filePath, dir) {
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filePaths = append(filePaths, filePath)
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break
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}
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}
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}
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if err := scanner.Err(); err != nil {
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return nil, err
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}
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return filePaths, nil
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}
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func removeFileAndEmptyDirs(path string) error {
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err := os.Remove(path)
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if err != nil {
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if os.IsNotExist(err) {
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return nil
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}
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pathErr := err.(*os.PathError)
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switch pathErr.Err {
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case syscall.ENOTEMPTY, syscall.EEXIST, syscall.ENOTDIR:
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return nil
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}
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return err
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}
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fmt.Printf("removed old ninja-created file %s because it has no rule to generate it\n", path)
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path, err = filepath.Abs(path)
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if err != nil {
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return err
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}
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cwd, err := os.Getwd()
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if err != nil {
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return err
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}
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for dir := filepath.Dir(path); dir != cwd; dir = filepath.Dir(dir) {
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err = os.Remove(dir)
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if err != nil {
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pathErr := err.(*os.PathError)
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switch pathErr.Err {
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case syscall.ENOTEMPTY, syscall.EEXIST:
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// We've come to a nonempty directory, so we're done.
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return nil
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default:
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return err
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}
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}
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}
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return nil
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}
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@ -120,8 +120,6 @@ func RunBlueprint(args Args, ctx *blueprint.Context, config interface{}) []strin
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fatalf("could not enumerate files: %v\n", err.Error())
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}
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soongOutDir := config.(BootstrapConfig).SoongOutDir()
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ctx.RegisterBottomUpMutator("bootstrap_plugin_deps", pluginDeps)
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ctx.RegisterModuleType("bootstrap_go_package", newGoPackageModuleFactory())
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ctx.RegisterModuleType("blueprint_go_binary", newGoBinaryModuleFactory())
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@ -200,14 +198,6 @@ func RunBlueprint(args Args, ctx *blueprint.Context, config interface{}) []strin
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}
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}
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if c, ok := config.(ConfigRemoveAbandonedFilesUnder); ok {
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under, except := c.RemoveAbandonedFilesUnder(soongOutDir)
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err := removeAbandonedFilesUnder(ctx, srcDir, soongOutDir, under, except)
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if err != nil {
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fatalf("error removing abandoned files: %s", err)
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}
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}
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if args.Memprofile != "" {
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f, err := os.Create(joinPath(ctx.SrcDir(), args.Memprofile))
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if err != nil {
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@ -99,14 +99,6 @@ type BootstrapConfig interface {
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PrimaryBuilderInvocations() []PrimaryBuilderInvocation
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}
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type ConfigRemoveAbandonedFilesUnder interface {
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// RemoveAbandonedFilesUnder should return two slices:
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// - a slice of path prefixes that will be cleaned of files that are no
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// longer active targets, but are listed in the .ninja_log.
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// - a slice of paths that are exempt from cleaning
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RemoveAbandonedFilesUnder(buildDir string) (under, except []string)
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}
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type StopBefore int
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const (
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