Use protobuf-codegen default and add mod_stem.rs

* Upgrade to new protobuf-codegen; use its standard
  default output without local change.
* Allow a sourceProvider to have multiple output files.
  For a stem.proto file, output stem.rs and mod_stem.rs.
* New protobuf-codegen option gen_mod_rs always generates
  output file named "mod.rs". To generate multiple .proto
  files into the same output directory, we need to rename
  mod.rs to mod_<stem>.rs.
* Instead of using the gen_mod_rs option and renaming mod.rs
  to mod_<stem>.rs, we generate the same mod_<stem>.rs
  directly with a simple printf command.

Bug: 170256643
Test: atest -c --host --include-subdirs external/crosvm
Change-Id: Ia09e41029099a6de4d35c96dbabd9ba5514c9019
This commit is contained in:
Chih-Hung Hsieh
2020-10-01 21:25:05 -07:00
parent 6682ef42a4
commit c49649c059
5 changed files with 19 additions and 12 deletions

View File

@@ -156,7 +156,7 @@ func (procMacro *procMacroDecorator) AndroidMk(ctx AndroidMkContext, ret *androi
}
func (sourceProvider *BaseSourceProvider) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
outFile := sourceProvider.OutputFile
outFile := sourceProvider.OutputFiles[0]
ret.Class = "ETC"
ret.OutputFile = android.OptionalPathForPath(outFile)
ret.SubName += sourceProvider.subName

View File

@@ -202,7 +202,7 @@ func (b *bindgenDecorator) GenerateSource(ctx ModuleContext, deps PathDeps) andr
},
})
b.BaseSourceProvider.OutputFile = outputFile
b.BaseSourceProvider.OutputFiles = android.Paths{outputFile}
return outputFile
}

View File

@@ -61,15 +61,22 @@ func (proto *protobufDecorator) GenerateSource(ctx ModuleContext, deps PathDeps)
}
outDir := android.PathForModuleOut(ctx)
depFile := android.PathForModuleOut(ctx, proto.BaseSourceProvider.getStem(ctx)+".d")
outputs := android.WritablePaths{android.PathForModuleOut(ctx, proto.BaseSourceProvider.getStem(ctx)+".rs")}
stem := proto.BaseSourceProvider.getStem(ctx)
// rust protobuf-codegen output <stem>.rs
stemFile := android.PathForModuleOut(ctx, stem+".rs")
// add mod_<stem>.rs to import <stem>.rs
modFile := android.PathForModuleOut(ctx, "mod_"+stem+".rs")
// mod_<stem>.rs is the main/first output file to be included/compiled
outputs := android.WritablePaths{modFile, stemFile}
depFile := android.PathForModuleOut(ctx, "mod_"+stem+".d")
rule := android.NewRuleBuilder()
android.ProtoRule(ctx, rule, protoFile.Path(), protoFlags, protoFlags.Deps, outDir, depFile, outputs)
rule.Command().Text("printf '// @generated\\npub mod %s;\\n' '" + stem + "' >").Output(modFile)
rule.Build(pctx, ctx, "protoc_"+protoFile.Path().Rel(), "protoc "+protoFile.Path().Rel())
proto.BaseSourceProvider.OutputFile = outputs[0]
return outputs[0]
proto.BaseSourceProvider.OutputFiles = android.Paths{modFile, stemFile}
return modFile
}
func (proto *protobufDecorator) SourceProviderProps() []interface{} {

View File

@@ -709,7 +709,7 @@ func (mod *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
} else {
sourceMod := actx.GetDirectDepWithTag(mod.Name(), sourceDepTag)
sourceLib := sourceMod.(*Module).compiler.(*libraryDecorator)
mod.sourceProvider.setOutputFile(sourceLib.sourceProvider.Srcs()[0])
mod.sourceProvider.setOutputFiles(sourceLib.sourceProvider.Srcs())
}
}

View File

@@ -30,7 +30,7 @@ type SourceProviderProperties struct {
type BaseSourceProvider struct {
Properties SourceProviderProperties
OutputFile android.Path
OutputFiles android.Paths
subAndroidMkOnce map[SubAndroidMkProvider]bool
subName string
}
@@ -43,11 +43,11 @@ type SourceProvider interface {
SourceProviderProps() []interface{}
SourceProviderDeps(ctx DepsContext, deps Deps) Deps
setSubName(subName string)
setOutputFile(outputFile android.Path)
setOutputFiles(outputFiles android.Paths)
}
func (sp *BaseSourceProvider) Srcs() android.Paths {
return android.Paths{sp.OutputFile}
return sp.OutputFiles
}
func (sp *BaseSourceProvider) GenerateSource(ctx ModuleContext, deps PathDeps) android.Path {
@@ -97,6 +97,6 @@ func (sp *BaseSourceProvider) setSubName(subName string) {
sp.subName = subName
}
func (sp *BaseSourceProvider) setOutputFile(outputFile android.Path) {
sp.OutputFile = outputFile
func (sp *BaseSourceProvider) setOutputFiles(outputFiles android.Paths) {
sp.OutputFiles = outputFiles
}