ba3ea16f14
If both bp2build_available and label are specified, label will be
preferred.
Initially, we copy the entire BUILD.bazel file. Eventually we may move
this to use bazel query for a more accurate result.
Test: go test *
Test: build/bazel/scripts/milestone-2/demo.sh full
Test: GENERATE_BAZEL_FILES=true m nothing
edit bionic/libc/tools/BUILD.bazel
GENERATE_BAZEL_FILES=true m nothing and verify changes picked up
Bug: 180516554
Change-Id: I43025583300e6b10d2c18032cd4a76237b578d59
61 lines
2.1 KiB
Go
61 lines
2.1 KiB
Go
// 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 bp2build
|
|
|
|
import (
|
|
"android/soong/android"
|
|
"fmt"
|
|
"os"
|
|
)
|
|
|
|
// The Bazel bp2build code generator is responsible for writing .bzl files that are equivalent to
|
|
// Android.bp files that are capable of being built with Bazel.
|
|
func Codegen(ctx *CodegenContext) CodegenMetrics {
|
|
outputDir := android.PathForOutput(ctx, "bp2build")
|
|
android.RemoveAllOutputDir(outputDir)
|
|
|
|
ruleShims := CreateRuleShims(android.ModuleTypeFactories())
|
|
|
|
buildToTargets, metrics := GenerateBazelTargets(ctx)
|
|
|
|
filesToWrite := CreateBazelFiles(ruleShims, buildToTargets, ctx.mode)
|
|
for _, f := range filesToWrite {
|
|
if err := writeFile(outputDir, ctx, f); err != nil {
|
|
fmt.Errorf("Failed to write %q (dir %q) due to %q", f.Basename, f.Dir, err)
|
|
}
|
|
}
|
|
|
|
return metrics
|
|
}
|
|
|
|
func writeFile(outputDir android.OutputPath, ctx android.PathContext, f BazelFile) error {
|
|
return writeReadOnlyFile(ctx, getOutputPath(outputDir, ctx, f.Dir), f.Basename, f.Contents)
|
|
}
|
|
|
|
func getOutputPath(outputDir android.OutputPath, ctx android.PathContext, dir string) android.OutputPath {
|
|
return outputDir.Join(ctx, dir)
|
|
}
|
|
|
|
// 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(ctx android.PathContext, dir android.OutputPath, baseName, content string) error {
|
|
android.CreateOutputDirIfNonexistent(dir, os.ModePerm)
|
|
pathToFile := dir.Join(ctx, baseName)
|
|
|
|
// 0444 is read-only
|
|
err := android.WriteFileToOutputDir(pathToFile, []byte(content), 0444)
|
|
|
|
return err
|
|
}
|