Build build_flags.json in soong
Define release_flags_json module type to install build_flags.json in
'etc'. release_flags_json reads the json files generated from the
soong release-config command.
Bug: 324996303
Test: build and see if the files are installed
Change-Id: I8cdcb7c61dd75cc54e4912d2ed7d1687f424151c
diff --git a/aconfig/build_flags/Android.bp b/aconfig/build_flags/Android.bp
index 69e4316..b3c7339 100644
--- a/aconfig/build_flags/Android.bp
+++ b/aconfig/build_flags/Android.bp
@@ -14,6 +14,7 @@
],
srcs: [
"all_build_flag_declarations.go",
+ "build_flags.go",
"declarations.go",
"init.go",
],
diff --git a/aconfig/build_flags/build_flags.go b/aconfig/build_flags/build_flags.go
new file mode 100644
index 0000000..e878b5a
--- /dev/null
+++ b/aconfig/build_flags/build_flags.go
@@ -0,0 +1,71 @@
+// Copyright 2024 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_flags
+
+import (
+ "fmt"
+
+ "android/soong/android"
+)
+
+const (
+ outJsonFileName = "build_flags.json"
+)
+
+func init() {
+ registerBuildFlagsModuleType(android.InitRegistrationContext)
+}
+
+func registerBuildFlagsModuleType(ctx android.RegistrationContext) {
+ ctx.RegisterModuleType("build_flags_json", buildFlagsFactory)
+}
+
+type buildFlags struct {
+ android.ModuleBase
+
+ outputPath android.OutputPath
+}
+
+func buildFlagsFactory() android.Module {
+ module := &buildFlags{}
+ android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
+ return module
+}
+
+func (m *buildFlags) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+ // Read the build_flags_<partition>.json file generated by soong
+ // 'release-config' command.
+ srcPath := android.PathForOutput(ctx, "release-config", fmt.Sprintf("build_flags_%s.json", m.PartitionTag(ctx.DeviceConfig())))
+ m.outputPath = android.PathForModuleOut(ctx, outJsonFileName).OutputPath
+
+ // The 'release-config' command is called for every build, and generates the
+ // build_flags_<partition>.json file.
+ // Update the output file only if the source file is changed.
+ ctx.Build(pctx, android.BuildParams{
+ Rule: android.CpIfChanged,
+ Input: srcPath,
+ Output: m.outputPath,
+ })
+
+ installPath := android.PathForModuleInstall(ctx, "etc")
+ ctx.InstallFile(installPath, outJsonFileName, m.outputPath)
+}
+
+func (m *buildFlags) AndroidMkEntries() []android.AndroidMkEntries {
+ return []android.AndroidMkEntries{android.AndroidMkEntries{
+ Class: "ETC",
+ OutputFile: android.OptionalPathForPath(m.outputPath),
+ }}
+}
diff --git a/aconfig/build_flags/init.go b/aconfig/build_flags/init.go
index 5907f4e..dc1369c 100644
--- a/aconfig/build_flags/init.go
+++ b/aconfig/build_flags/init.go
@@ -69,6 +69,7 @@
func init() {
RegisterBuildComponents(android.InitRegistrationContext)
+ pctx.Import("android/soong/android")
pctx.HostBinToolVariable("buildFlagDeclarations", "build-flag-declarations")
}
diff --git a/cmd/release_config/release_config/main.go b/cmd/release_config/release_config/main.go
index 0617838..762f561 100644
--- a/cmd/release_config/release_config/main.go
+++ b/cmd/release_config/release_config/main.go
@@ -120,7 +120,7 @@
panic(err)
}
}
- if err = config.WritePartitionBuildFlags(outputDir, product, targetRelease); err != nil {
+ if err = config.WritePartitionBuildFlags(outputDir); err != nil {
panic(err)
}
diff --git a/cmd/release_config/release_config_lib/release_config.go b/cmd/release_config/release_config_lib/release_config.go
index 547f0dc..3e2348f 100644
--- a/cmd/release_config/release_config_lib/release_config.go
+++ b/cmd/release_config/release_config_lib/release_config.go
@@ -284,13 +284,15 @@
return nil
}
-func (config *ReleaseConfig) WritePartitionBuildFlags(outDir, product, targetRelease string) error {
+func (config *ReleaseConfig) WritePartitionBuildFlags(outDir string) error {
var err error
for partition, flags := range config.PartitionBuildFlags {
slices.SortFunc(flags.FlagArtifacts, func(a, b *rc_proto.FlagArtifact) int {
return cmp.Compare(*a.FlagDeclaration.Name, *b.FlagDeclaration.Name)
})
- if err = WriteMessage(filepath.Join(outDir, fmt.Sprintf("build_flags_%s-%s-%s.json", partition, config.Name, product)), flags); err != nil {
+ // The json file name must not be modified as this is read from
+ // build_flags_json module
+ if err = WriteMessage(filepath.Join(outDir, fmt.Sprintf("build_flags_%s.json", partition)), flags); err != nil {
return err
}
}