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- // Copyright 2020 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 main
- import (
- "android/soong/starlark_import"
- "io/fs"
- "io/ioutil"
- "os"
- "path/filepath"
- "android/soong/android"
- "android/soong/bp2build"
- )
- // A helper function to generate a Read-only Bazel workspace in outDir
- func createBazelWorkspace(ctx *bp2build.CodegenContext, outDir string, generateFilegroups bool) error {
- os.RemoveAll(outDir)
- ruleShims := bp2build.CreateRuleShims(android.ModuleTypeFactories())
- res, err := bp2build.GenerateBazelTargets(ctx, generateFilegroups)
- if err != nil {
- panic(err)
- }
- filesToWrite := bp2build.CreateBazelFiles(ctx.Config(), ruleShims, res.BuildDirToTargets(),
- ctx.Mode())
- bazelRcFiles, err2 := CopyBazelRcFiles()
- if err2 != nil {
- return err2
- }
- filesToWrite = append(filesToWrite, bazelRcFiles...)
- for _, f := range filesToWrite {
- if err := writeReadOnlyFile(outDir, f); err != nil {
- return err
- }
- }
- // Add starlark deps here, so that they apply to both queryview and apibp2build which
- // both run this function.
- starlarkDeps, err2 := starlark_import.GetNinjaDeps()
- if err2 != nil {
- return err2
- }
- ctx.AddNinjaFileDeps(starlarkDeps...)
- return nil
- }
- // CopyBazelRcFiles creates BazelFiles for all the bazelrc files under
- // build/bazel. They're needed because the rc files are still read when running
- // queryview, so they have to be in the queryview workspace.
- func CopyBazelRcFiles() ([]bp2build.BazelFile, error) {
- result := make([]bp2build.BazelFile, 0)
- err := filepath.WalkDir(filepath.Join(topDir, "build/bazel"), func(path string, info fs.DirEntry, err error) error {
- if filepath.Ext(path) == ".bazelrc" {
- contents, err := os.ReadFile(path)
- if err != nil {
- return err
- }
- path, err = filepath.Rel(topDir, path)
- if err != nil {
- return err
- }
- result = append(result, bp2build.BazelFile{
- Dir: filepath.Dir(path),
- Basename: filepath.Base(path),
- Contents: string(contents),
- })
- }
- return nil
- })
- return result, err
- }
- // The auto-conversion directory should be read-only, sufficient for bazel query. The files
- // are not intended to be edited by end users.
- func writeReadOnlyFile(dir string, f bp2build.BazelFile) error {
- dir = filepath.Join(dir, f.Dir)
- if err := createDirectoryIfNonexistent(dir); err != nil {
- return err
- }
- pathToFile := filepath.Join(dir, f.Basename)
- // 0444 is read-only
- err := ioutil.WriteFile(pathToFile, []byte(f.Contents), 0444)
- return err
- }
- func writeReadWriteFile(dir string, f bp2build.BazelFile) error {
- dir = filepath.Join(dir, f.Dir)
- if err := createDirectoryIfNonexistent(dir); err != nil {
- return err
- }
- pathToFile := filepath.Join(dir, f.Basename)
- // 0644 is read-write
- err := ioutil.WriteFile(pathToFile, []byte(f.Contents), 0644)
- return err
- }
- func createDirectoryIfNonexistent(dir string) error {
- if _, err := os.Stat(dir); os.IsNotExist(err) {
- return os.MkdirAll(dir, os.ModePerm)
- } else {
- return err
- }
- }
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