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90 lines
2.8 KiB
90 lines
2.8 KiB
4 months ago
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// Copyright 2015 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package android
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"github.com/google/blueprint"
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)
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func init() {
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RegisterSingletonType("writedocs", DocsSingleton)
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}
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func DocsSingleton() Singleton {
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return &docsSingleton{}
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}
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type docsSingleton struct{}
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func primaryBuilderPath(ctx SingletonContext) Path {
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buildDir := absolutePath(ctx.Config().BuildDir())
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binary := absolutePath(os.Args[0])
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primaryBuilder, err := filepath.Rel(buildDir, binary)
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if err != nil {
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ctx.Errorf("path to primary builder %q is not in build dir %q (%q)",
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os.Args[0], ctx.Config().BuildDir(), err)
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}
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return PathForOutput(ctx, primaryBuilder)
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}
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func (c *docsSingleton) GenerateBuildActions(ctx SingletonContext) {
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var deps Paths
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deps = append(deps, pathForBuildToolDep(ctx, ctx.Config().moduleListFile))
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deps = append(deps, pathForBuildToolDep(ctx, ctx.Config().ProductVariablesFileName))
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// The dexpreopt configuration may not exist, but if it does, it's a dependency
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// of soong_build.
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dexpreoptConfigPath := ctx.Config().DexpreoptGlobalConfigPath(ctx)
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if dexpreoptConfigPath.Valid() {
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deps = append(deps, dexpreoptConfigPath.Path())
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}
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// Generate build system docs for the primary builder. Generating docs reads the source
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// files used to build the primary builder, but that dependency will be picked up through
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// the dependency on the primary builder itself. There are no dependencies on the
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// Blueprints files, as any relevant changes to the Blueprints files would have caused
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// a rebuild of the primary builder.
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docsFile := PathForOutput(ctx, "docs", "soong_build.html")
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primaryBuilder := primaryBuilderPath(ctx)
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soongDocs := ctx.Rule(pctx, "soongDocs",
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blueprint.RuleParams{
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Command: fmt.Sprintf("rm -f ${outDir}/* && %s --soong_docs %s %s",
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primaryBuilder.String(),
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docsFile.String(),
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"\""+strings.Join(os.Args[1:], "\" \"")+"\""),
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CommandDeps: []string{primaryBuilder.String()},
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Description: fmt.Sprintf("%s docs $out", primaryBuilder.Base()),
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},
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"outDir")
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ctx.Build(pctx, BuildParams{
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Rule: soongDocs,
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Output: docsFile,
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Inputs: deps,
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Args: map[string]string{
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"outDir": PathForOutput(ctx, "docs").String(),
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},
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})
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// Add a phony target for building the documentation
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ctx.Phony("soong_docs", docsFile)
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}
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