LaMont Jones | c6aef16 | 2024-05-20 10:37:25 -0700 | [diff] [blame] | 1 | // Copyright 2023 Google Inc. All rights reserved. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package build_flags |
| 16 | |
| 17 | import ( |
| 18 | "android/soong/android" |
| 19 | ) |
| 20 | |
| 21 | // A singleton module that collects all of the build flags declared in the |
| 22 | // tree into a single combined file for export to the external flag setting |
| 23 | // server (inside Google it's Gantry). |
| 24 | // |
| 25 | // Note that this is ALL build_declarations modules present in the tree, not just |
| 26 | // ones that are relevant to the product currently being built, so that that infra |
| 27 | // doesn't need to pull from multiple builds and merge them. |
| 28 | func AllBuildFlagDeclarationsFactory() android.Singleton { |
| 29 | return &allBuildFlagDeclarationsSingleton{} |
| 30 | } |
| 31 | |
| 32 | type allBuildFlagDeclarationsSingleton struct { |
| 33 | intermediateBinaryProtoPath android.OutputPath |
| 34 | intermediateTextProtoPath android.OutputPath |
| 35 | } |
| 36 | |
| 37 | func (this *allBuildFlagDeclarationsSingleton) GenerateBuildActions(ctx android.SingletonContext) { |
| 38 | // Find all of the build_flag_declarations modules |
| 39 | var intermediateFiles android.Paths |
| 40 | ctx.VisitAllModules(func(module android.Module) { |
Yu Liu | 663e450 | 2024-08-12 18:23:59 +0000 | [diff] [blame] | 41 | decl, ok := android.OtherModuleProvider(ctx, module, BuildFlagDeclarationsProviderKey) |
LaMont Jones | c6aef16 | 2024-05-20 10:37:25 -0700 | [diff] [blame] | 42 | if !ok { |
| 43 | return |
| 44 | } |
| 45 | intermediateFiles = append(intermediateFiles, decl.IntermediateCacheOutputPath) |
| 46 | }) |
| 47 | |
| 48 | // Generate build action for build_flag (binary proto output) |
| 49 | this.intermediateBinaryProtoPath = android.PathForIntermediates(ctx, "all_build_flag_declarations.pb") |
| 50 | ctx.Build(pctx, android.BuildParams{ |
| 51 | Rule: allDeclarationsRule, |
| 52 | Inputs: intermediateFiles, |
| 53 | Output: this.intermediateBinaryProtoPath, |
| 54 | Description: "all_build_flag_declarations", |
| 55 | Args: map[string]string{ |
| 56 | "intermediates": android.JoinPathsWithPrefix(intermediateFiles, "--intermediate "), |
| 57 | }, |
| 58 | }) |
| 59 | ctx.Phony("all_build_flag_declarations", this.intermediateBinaryProtoPath) |
| 60 | |
| 61 | // Generate build action for build_flag (text proto output) |
| 62 | this.intermediateTextProtoPath = android.PathForIntermediates(ctx, "all_build_flag_declarations.textproto") |
| 63 | ctx.Build(pctx, android.BuildParams{ |
| 64 | Rule: allDeclarationsRuleTextProto, |
| 65 | Input: this.intermediateBinaryProtoPath, |
| 66 | Output: this.intermediateTextProtoPath, |
| 67 | Description: "all_build_flag_declarations_textproto", |
| 68 | }) |
| 69 | ctx.Phony("all_build_flag_declarations_textproto", this.intermediateTextProtoPath) |
| 70 | } |
| 71 | |
| 72 | func (this *allBuildFlagDeclarationsSingleton) MakeVars(ctx android.MakeVarsContext) { |
| 73 | ctx.DistForGoal("droid", this.intermediateBinaryProtoPath) |
| 74 | for _, goal := range []string{"docs", "droid", "sdk"} { |
| 75 | ctx.DistForGoalWithFilename(goal, this.intermediateBinaryProtoPath, "build_flags/all_flags.pb") |
| 76 | ctx.DistForGoalWithFilename(goal, this.intermediateTextProtoPath, "build_flags/all_flags.textproto") |
| 77 | } |
| 78 | } |