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// Copyright 2017 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package build
import (
"android/soong/finder"
"android/soong/fs"
"android/soong/ui/logger"
"bytes"
"io/ioutil"
"os"
"path/filepath"
"strings"
)
// This file provides an interface to the Finder for use in Soong UI
// This file stores configuration information about which files to find
// NewSourceFinder returns a new Finder configured to search for source files.
// Callers of NewSourceFinder should call <f.Shutdown()> when done
func NewSourceFinder(ctx Context, config Config) (f *finder.Finder) {
ctx.BeginTrace("find modules")
defer ctx.EndTrace()
dir, err := os.Getwd()
if err != nil {
ctx.Fatalf("No working directory for module-finder: %v", err.Error())
}
cacheParams := finder.CacheParams{
WorkingDirectory: dir,
RootDirs: []string{"."},
ExcludeDirs: []string{".git", ".repo"},
PruneFiles: []string{".out-dir", ".find-ignore"},
IncludeFiles: []string{"Android.mk", "Android.bp", "Blueprints", "CleanSpec.mk"},
}
dumpDir := config.FileListDir()
f, err = finder.New(cacheParams, fs.OsFs, logger.New(ioutil.Discard),
filepath.Join(dumpDir, "files.db"))
if err != nil {
ctx.Fatalf("Could not create module-finder: %v", err)
}
return f
}
// FindSources searches for source files known to <f> and writes them to the filesystem for
// use later.
func FindSources(ctx Context, config Config, f *finder.Finder) {
// note that dumpDir in FindSources may be different than dumpDir in NewSourceFinder
// if a caller such as multiproduct_kati wants to share one Finder among several builds
dumpDir := config.FileListDir()
os.MkdirAll(dumpDir, 0777)
androidMks := f.FindFirstNamedAt(".", "Android.mk")
err := dumpListToFile(androidMks, filepath.Join(dumpDir, "Android.mk.list"))
if err != nil {
ctx.Fatalf("Could not export module list: %v", err)
}
cleanSpecs := f.FindFirstNamedAt(".", "CleanSpec.mk")
dumpListToFile(cleanSpecs, filepath.Join(dumpDir, "CleanSpec.mk.list"))
if err != nil {
ctx.Fatalf("Could not export module list: %v", err)
}
isBlueprintFile := func(dir finder.DirEntries) (dirs []string, files []string) {
files = []string{}
for _, file := range dir.FileNames {
if file == "Android.bp" || file == "Blueprints" {
files = append(files, file)
}
}
return dir.DirNames, files
}
androidBps := f.FindMatching(".", isBlueprintFile)
err = dumpListToFile(androidBps, filepath.Join(dumpDir, "Android.bp.list"))
if err != nil {
ctx.Fatalf("Could not find modules: %v", err)
}
}
func dumpListToFile(list []string, filePath string) (err error) {
desiredText := strings.Join(list, "\n")
desiredBytes := []byte(desiredText)
actualBytes, readErr := ioutil.ReadFile(filePath)
if readErr != nil || !bytes.Equal(desiredBytes, actualBytes) {
err = ioutil.WriteFile(filePath, desiredBytes, 0777)
}
return err
}
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