b64fc1cab5
The Finder runs roughly 200ms faster than findleaves.py in aosp, and runs roughly 400ms faster in internal master. Bug: 64363847 Test: m -j Change-Id: I62db8dacc90871e913576fe2443021fb1749a483
102 lines
3.4 KiB
Go
102 lines
3.4 KiB
Go
// Copyright 2017 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 build
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import (
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"android/soong/finder"
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"android/soong/fs"
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"android/soong/ui/logger"
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"bytes"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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)
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// This file provides an interface to the Finder for use in Soong UI
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// This file stores configuration information about which files to find
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// NewSourceFinder returns a new Finder configured to search for source files.
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// Callers of NewSourceFinder should call <f.Shutdown()> when done
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func NewSourceFinder(ctx Context, config Config) (f *finder.Finder) {
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ctx.BeginTrace("find modules")
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defer ctx.EndTrace()
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dir, err := os.Getwd()
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if err != nil {
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ctx.Fatalf("No working directory for module-finder: %v", err.Error())
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}
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cacheParams := finder.CacheParams{
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WorkingDirectory: dir,
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RootDirs: []string{"."},
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ExcludeDirs: []string{".git", ".repo"},
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PruneFiles: []string{".out-dir", ".find-ignore"},
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IncludeFiles: []string{"Android.mk", "Android.bp", "Blueprints", "CleanSpec.mk"},
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}
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dumpDir := config.FileListDir()
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f, err = finder.New(cacheParams, fs.OsFs, logger.New(ioutil.Discard),
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filepath.Join(dumpDir, "files.db"))
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if err != nil {
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ctx.Fatalf("Could not create module-finder: %v", err)
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}
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return f
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}
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// FindSources searches for source files known to <f> and writes them to the filesystem for
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// use later.
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func FindSources(ctx Context, config Config, f *finder.Finder) {
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// note that dumpDir in FindSources may be different than dumpDir in NewSourceFinder
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// if a caller such as multiproduct_kati wants to share one Finder among several builds
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dumpDir := config.FileListDir()
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os.MkdirAll(dumpDir, 0777)
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androidMks := f.FindFirstNamedAt(".", "Android.mk")
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err := dumpListToFile(androidMks, filepath.Join(dumpDir, "Android.mk.list"))
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if err != nil {
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ctx.Fatalf("Could not export module list: %v", err)
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}
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cleanSpecs := f.FindFirstNamedAt(".", "CleanSpec.mk")
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dumpListToFile(cleanSpecs, filepath.Join(dumpDir, "CleanSpec.mk.list"))
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if err != nil {
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ctx.Fatalf("Could not export module list: %v", err)
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}
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isBlueprintFile := func(dir finder.DirEntries) (dirs []string, files []string) {
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files = []string{}
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for _, file := range dir.FileNames {
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if file == "Android.bp" || file == "Blueprints" {
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files = append(files, file)
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}
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}
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return dir.DirNames, files
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}
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androidBps := f.FindMatching(".", isBlueprintFile)
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err = dumpListToFile(androidBps, filepath.Join(dumpDir, "Android.bp.list"))
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if err != nil {
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ctx.Fatalf("Could not find modules: %v", err)
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}
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}
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func dumpListToFile(list []string, filePath string) (err error) {
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desiredText := strings.Join(list, "\n")
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desiredBytes := []byte(desiredText)
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actualBytes, readErr := ioutil.ReadFile(filePath)
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if readErr != nil || !bytes.Equal(desiredBytes, actualBytes) {
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err = ioutil.WriteFile(filePath, desiredBytes, 0777)
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}
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return err
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}
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