Merge "remove dead Bazel code from soong_ui"
This commit is contained in:
Treehugger Robot
Gerrit Code Review
commit
bd12239355
3 changed files with 2 additions and 267 deletions
|
|
@ -46,7 +46,6 @@ bootstrap_go_package {
|
|||
"soong-ui-tracer",
|
||||
],
|
||||
srcs: [
|
||||
"bazel.go",
|
||||
"build.go",
|
||||
"cleanbuild.go",
|
||||
"config.go",
|
||||
|
|
|
|||
|
|
@ -1,257 +0,0 @@
|
|||
// 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 build
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
|
||||
"android/soong/bazel"
|
||||
"android/soong/shared"
|
||||
"android/soong/ui/metrics"
|
||||
)
|
||||
|
||||
func getBazelInfo(ctx Context, config Config, bazelExecutable string, bazelEnv map[string]string, query string) string {
|
||||
infoCmd := Command(ctx, config, "bazel", bazelExecutable)
|
||||
|
||||
if extraStartupArgs, ok := infoCmd.Environment.Get("BAZEL_STARTUP_ARGS"); ok {
|
||||
infoCmd.Args = append(infoCmd.Args, strings.Fields(extraStartupArgs)...)
|
||||
}
|
||||
|
||||
// Obtain the output directory path in the execution root.
|
||||
infoCmd.Args = append(infoCmd.Args,
|
||||
"info",
|
||||
query,
|
||||
)
|
||||
|
||||
for k, v := range bazelEnv {
|
||||
infoCmd.Environment.Set(k, v)
|
||||
}
|
||||
|
||||
infoCmd.Dir = filepath.Join(config.OutDir(), "..")
|
||||
|
||||
queryResult := strings.TrimSpace(string(infoCmd.OutputOrFatal()))
|
||||
return queryResult
|
||||
}
|
||||
|
||||
// Main entry point to construct the Bazel build command line, environment
|
||||
// variables and post-processing steps (e.g. converge output directories)
|
||||
func runBazel(ctx Context, config Config) {
|
||||
ctx.BeginTrace(metrics.RunBazel, "bazel")
|
||||
defer ctx.EndTrace()
|
||||
|
||||
// "droid" is the default ninja target.
|
||||
// TODO(b/160568333): stop hardcoding 'droid' to support building any
|
||||
// Ninja target.
|
||||
outputGroups := "droid"
|
||||
if len(config.ninjaArgs) > 0 {
|
||||
// At this stage, the residue slice of args passed to ninja
|
||||
// are the ninja targets to build, which can correspond directly
|
||||
// to ninja_build's output_groups.
|
||||
outputGroups = strings.Join(config.ninjaArgs, ",")
|
||||
}
|
||||
|
||||
// Environment variables are the primary mechanism to pass information from
|
||||
// soong_ui configuration or context to Bazel.
|
||||
bazelEnv := make(map[string]string)
|
||||
|
||||
// Use *_NINJA variables to pass the root-relative path of the combined,
|
||||
// kati-generated, soong-generated, and packaging Ninja files to Bazel.
|
||||
// Bazel reads these from the lunch() repository rule.
|
||||
bazelEnv["COMBINED_NINJA"] = config.CombinedNinjaFile()
|
||||
bazelEnv["KATI_NINJA"] = config.KatiBuildNinjaFile()
|
||||
bazelEnv["PACKAGE_NINJA"] = config.KatiPackageNinjaFile()
|
||||
bazelEnv["SOONG_NINJA"] = config.SoongNinjaFile()
|
||||
|
||||
// NOTE: When Bazel is used, config.DistDir() is rigged to return a fake distdir under config.OutDir()
|
||||
// This is to ensure that Bazel can actually write there. See config.go for more details.
|
||||
bazelEnv["DIST_DIR"] = config.DistDir()
|
||||
|
||||
bazelEnv["SHELL"] = "/bin/bash"
|
||||
|
||||
// `build/bazel/bin/bazel` is the default entry point for executing Bazel in the AOSP
|
||||
// source tree.
|
||||
bazelExecutable := filepath.Join("build", "bazel", "bin", "bazel")
|
||||
cmd := Command(ctx, config, "bazel", bazelExecutable)
|
||||
|
||||
// Append custom startup flags to the Bazel command. Startup flags affect
|
||||
// the Bazel server itself, and any changes to these flags would incur a
|
||||
// restart of the server, losing much of the in-memory incrementality.
|
||||
if extraStartupArgs, ok := cmd.Environment.Get("BAZEL_STARTUP_ARGS"); ok {
|
||||
cmd.Args = append(cmd.Args, strings.Fields(extraStartupArgs)...)
|
||||
}
|
||||
|
||||
// Start constructing the `build` command.
|
||||
actionName := bazel.BazelNinjaExecRunName
|
||||
cmd.Args = append(cmd.Args,
|
||||
"build",
|
||||
// Use output_groups to select the set of outputs to produce from a
|
||||
// ninja_build target.
|
||||
"--output_groups="+outputGroups,
|
||||
// Generate a performance profile
|
||||
"--profile="+filepath.Join(shared.BazelMetricsFilename(config, actionName)),
|
||||
"--slim_profile=true",
|
||||
)
|
||||
|
||||
if config.UseRBE() {
|
||||
for _, envVar := range []string{
|
||||
// RBE client
|
||||
"RBE_compare",
|
||||
"RBE_exec_strategy",
|
||||
"RBE_invocation_id",
|
||||
"RBE_log_dir",
|
||||
"RBE_num_retries_if_mismatched",
|
||||
"RBE_platform",
|
||||
"RBE_remote_accept_cache",
|
||||
"RBE_remote_update_cache",
|
||||
"RBE_server_address",
|
||||
// TODO: remove old FLAG_ variables.
|
||||
"FLAG_compare",
|
||||
"FLAG_exec_root",
|
||||
"FLAG_exec_strategy",
|
||||
"FLAG_invocation_id",
|
||||
"FLAG_log_dir",
|
||||
"FLAG_platform",
|
||||
"FLAG_remote_accept_cache",
|
||||
"FLAG_remote_update_cache",
|
||||
"FLAG_server_address",
|
||||
} {
|
||||
cmd.Args = append(cmd.Args,
|
||||
"--action_env="+envVar)
|
||||
}
|
||||
|
||||
// We need to calculate --RBE_exec_root ourselves
|
||||
ctx.Println("Getting Bazel execution_root...")
|
||||
cmd.Args = append(cmd.Args, "--action_env=RBE_exec_root="+getBazelInfo(ctx, config, bazelExecutable, bazelEnv, "execution_root"))
|
||||
}
|
||||
|
||||
// Ensure that the PATH environment variable value used in the action
|
||||
// environment is the restricted set computed from soong_ui, and not a
|
||||
// user-provided one, for hermeticity reasons.
|
||||
if pathEnvValue, ok := config.environ.Get("PATH"); ok {
|
||||
cmd.Environment.Set("PATH", pathEnvValue)
|
||||
cmd.Args = append(cmd.Args, "--action_env=PATH="+pathEnvValue)
|
||||
}
|
||||
|
||||
// Allow Bazel actions to see the SHELL variable (passed to Bazel above)
|
||||
cmd.Args = append(cmd.Args, "--action_env=SHELL")
|
||||
|
||||
// Append custom build flags to the Bazel command. Changes to these flags
|
||||
// may invalidate Bazel's analysis cache.
|
||||
// These should be appended as the final args, so that they take precedence.
|
||||
if extraBuildArgs, ok := cmd.Environment.Get("BAZEL_BUILD_ARGS"); ok {
|
||||
cmd.Args = append(cmd.Args, strings.Fields(extraBuildArgs)...)
|
||||
}
|
||||
|
||||
// Append the label of the default ninja_build target.
|
||||
cmd.Args = append(cmd.Args,
|
||||
"//:"+config.TargetProduct()+"-"+config.TargetBuildVariant(),
|
||||
)
|
||||
|
||||
// Execute the command at the root of the directory.
|
||||
cmd.Dir = filepath.Join(config.OutDir(), "..")
|
||||
|
||||
for k, v := range bazelEnv {
|
||||
cmd.Environment.Set(k, v)
|
||||
}
|
||||
|
||||
// Make a human-readable version of the bazelEnv map
|
||||
bazelEnvStringBuffer := new(bytes.Buffer)
|
||||
for k, v := range bazelEnv {
|
||||
fmt.Fprintf(bazelEnvStringBuffer, "%s=%s ", k, v)
|
||||
}
|
||||
|
||||
// Print the implicit command line
|
||||
ctx.Println("Bazel implicit command line: " + strings.Join(cmd.Environment.Environ(), " ") + " " + cmd.Cmd.String() + "\n")
|
||||
|
||||
// Print the explicit command line too
|
||||
ctx.Println("Bazel explicit command line: " + bazelEnvStringBuffer.String() + cmd.Cmd.String() + "\n")
|
||||
|
||||
// Execute the build command.
|
||||
cmd.RunAndStreamOrFatal()
|
||||
|
||||
// Post-processing steps start here. Once the Bazel build completes, the
|
||||
// output files are still stored in the execution root, not in $OUT_DIR.
|
||||
// Ensure that the $OUT_DIR contains the expected set of files by symlinking
|
||||
// the files from the execution root's output direction into $OUT_DIR.
|
||||
|
||||
ctx.Println("Getting Bazel output_path...")
|
||||
outputBasePath := getBazelInfo(ctx, config, bazelExecutable, bazelEnv, "output_path")
|
||||
// TODO: Don't hardcode out/ as the bazel output directory. This is
|
||||
// currently hardcoded as ninja_build.output_root.
|
||||
bazelNinjaBuildOutputRoot := filepath.Join(outputBasePath, "..", "out")
|
||||
|
||||
ctx.Println("Populating output directory...")
|
||||
populateOutdir(ctx, config, bazelNinjaBuildOutputRoot, ".")
|
||||
}
|
||||
|
||||
// For all files F recursively under rootPath/relativePath, creates symlinks
|
||||
// such that OutDir/F resolves to rootPath/F via symlinks.
|
||||
// NOTE: For distdir paths we rename files instead of creating symlinks, so that the distdir is independent.
|
||||
func populateOutdir(ctx Context, config Config, rootPath string, relativePath string) {
|
||||
destDir := filepath.Join(rootPath, relativePath)
|
||||
os.MkdirAll(destDir, 0755)
|
||||
files, err := ioutil.ReadDir(destDir)
|
||||
if err != nil {
|
||||
ctx.Fatal(err)
|
||||
}
|
||||
|
||||
for _, f := range files {
|
||||
// The original Bazel file path
|
||||
destPath := filepath.Join(destDir, f.Name())
|
||||
|
||||
// The desired Soong file path
|
||||
srcPath := filepath.Join(config.OutDir(), relativePath, f.Name())
|
||||
|
||||
destLstatResult, destLstatErr := os.Lstat(destPath)
|
||||
if destLstatErr != nil {
|
||||
ctx.Fatalf("Unable to Lstat dest %s: %s", destPath, destLstatErr)
|
||||
}
|
||||
|
||||
srcLstatResult, srcLstatErr := os.Lstat(srcPath)
|
||||
|
||||
if srcLstatErr == nil {
|
||||
if srcLstatResult.IsDir() && destLstatResult.IsDir() {
|
||||
// src and dest are both existing dirs - recurse on the dest dir contents...
|
||||
populateOutdir(ctx, config, rootPath, filepath.Join(relativePath, f.Name()))
|
||||
} else {
|
||||
// Ignore other pre-existing src files (could be pre-existing files, directories, symlinks, ...)
|
||||
// This can arise for files which are generated under OutDir outside of soong_build, such as .bootstrap files.
|
||||
// FIXME: This might cause a problem later e.g. if a symlink in the build graph changes...
|
||||
}
|
||||
} else {
|
||||
if !os.IsNotExist(srcLstatErr) {
|
||||
ctx.Fatalf("Unable to Lstat src %s: %s", srcPath, srcLstatErr)
|
||||
}
|
||||
|
||||
if strings.Contains(destDir, config.DistDir()) {
|
||||
// We need to make a "real" file/dir instead of making a symlink (because the distdir can't have symlinks)
|
||||
// Rename instead of copy in order to save disk space.
|
||||
if err := os.Rename(destPath, srcPath); err != nil {
|
||||
ctx.Fatalf("Unable to rename %s -> %s due to error %s", srcPath, destPath, err)
|
||||
}
|
||||
} else {
|
||||
// src does not exist, so try to create a src -> dest symlink (i.e. a Soong path -> Bazel path symlink)
|
||||
if err := os.Symlink(destPath, srcPath); err != nil {
|
||||
ctx.Fatalf("Unable to create symlink %s -> %s due to error %s", srcPath, destPath, err)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -90,7 +90,7 @@ func createCombinedBuildNinjaFile(ctx Context, config Config) {
|
|||
}
|
||||
}
|
||||
|
||||
// These are bitmasks which can be used to check whether various flags are set e.g. whether to use Bazel.
|
||||
// These are bitmasks which can be used to check whether various flags are set
|
||||
const (
|
||||
_ = iota
|
||||
// Whether to run the kati config step.
|
||||
|
|
@ -103,8 +103,6 @@ const (
|
|||
RunKatiNinja = 1 << iota
|
||||
// Whether to run ninja on the combined ninja.
|
||||
RunNinja = 1 << iota
|
||||
// Whether to run bazel on the combined ninja.
|
||||
RunBazel = 1 << iota
|
||||
RunBuildTests = 1 << iota
|
||||
RunAll = RunProductConfig | RunSoong | RunKati | RunKatiNinja | RunNinja
|
||||
)
|
||||
|
|
@ -324,11 +322,6 @@ func Build(ctx Context, config Config) {
|
|||
|
||||
runNinjaForBuild(ctx, config)
|
||||
}
|
||||
|
||||
// Currently, using Bazel requires Kati and Soong to run first, so check whether to run Bazel last.
|
||||
if what&RunBazel != 0 {
|
||||
runBazel(ctx, config)
|
||||
}
|
||||
}
|
||||
|
||||
func evaluateWhatToRun(config Config, verboseln func(v ...interface{})) int {
|
||||
|
|
|
|||
Loading…
Reference in a new issue