platform_build_soong/android/writedocs.go
Lukacs T. Berki 9f6c24a887 Rename BuildDir and NinjaBuildDir.
These are just out/ and out/soong/ and the old names were quite
confusing.

Test: Presubmits.
Merged-In: I999ca62162062f27e449f83ffb00fa580d4065b8
Merged-In: I2fcd80a9e376a6842a06aa104a9f6f5c5e16f8c7
Change-Id: Ib481d2aac40df8da1b74174dc8ec576c1cb48be0
2021-08-27 10:08:49 +02:00

89 lines
2.8 KiB
Go

// Copyright 2015 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 android
import (
"fmt"
"os"
"path/filepath"
"strings"
"github.com/google/blueprint"
)
func init() {
RegisterSingletonType("writedocs", DocsSingleton)
}
func DocsSingleton() Singleton {
return &docsSingleton{}
}
type docsSingleton struct{}
func primaryBuilderPath(ctx SingletonContext) Path {
soongOutDir := absolutePath(ctx.Config().SoongOutDir())
binary := absolutePath(os.Args[0])
primaryBuilder, err := filepath.Rel(soongOutDir, binary)
if err != nil {
ctx.Errorf("path to primary builder %q is not in build dir %q (%q)",
os.Args[0], ctx.Config().SoongOutDir(), err)
}
return PathForOutput(ctx, primaryBuilder)
}
func (c *docsSingleton) GenerateBuildActions(ctx SingletonContext) {
var deps Paths
deps = append(deps, pathForBuildToolDep(ctx, ctx.Config().moduleListFile))
deps = append(deps, pathForBuildToolDep(ctx, ctx.Config().ProductVariablesFileName))
// The dexpreopt configuration may not exist, but if it does, it's a dependency
// of soong_build.
dexpreoptConfigPath := ctx.Config().DexpreoptGlobalConfigPath(ctx)
if dexpreoptConfigPath.Valid() {
deps = append(deps, dexpreoptConfigPath.Path())
}
// Generate build system docs for the primary builder. Generating docs reads the source
// files used to build the primary builder, but that dependency will be picked up through
// the dependency on the primary builder itself. There are no dependencies on the
// Blueprints files, as any relevant changes to the Blueprints files would have caused
// a rebuild of the primary builder.
docsFile := PathForOutput(ctx, "docs", "soong_build.html")
primaryBuilder := primaryBuilderPath(ctx)
soongDocs := ctx.Rule(pctx, "soongDocs",
blueprint.RuleParams{
Command: fmt.Sprintf("rm -f ${outDir}/* && %s --soong_docs %s %s",
primaryBuilder.String(),
docsFile.String(),
"\""+strings.Join(os.Args[1:], "\" \"")+"\""),
CommandDeps: []string{primaryBuilder.String()},
Description: fmt.Sprintf("%s docs $out", primaryBuilder.Base()),
},
"outDir")
ctx.Build(pctx, BuildParams{
Rule: soongDocs,
Output: docsFile,
Inputs: deps,
Args: map[string]string{
"outDir": PathForOutput(ctx, "docs").String(),
},
})
// Add a phony target for building the documentation
ctx.Phony("soong_docs", docsFile)
}