// Copyright 2019 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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"path/filepath"
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"github.com/google/blueprint"
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)
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func init() {
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pctx.SourcePathVariable("merge_notices", "build/soong/scripts/mergenotice.py")
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pctx.SourcePathVariable("generate_notice", "build/make/tools/generate-notice-files.py")
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pctx.HostBinToolVariable("minigzip", "minigzip")
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}
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var (
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mergeNoticesRule = pctx.AndroidStaticRule("mergeNoticesRule", blueprint.RuleParams{
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Command: `${merge_notices} --output $out $in`,
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CommandDeps: []string{"${merge_notices}"},
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Description: "merge notice files into $out",
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})
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generateNoticeRule = pctx.AndroidStaticRule("generateNoticeRule", blueprint.RuleParams{
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Command: `rm -rf $tmpDir $$(dirname $out) && ` +
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`mkdir -p $tmpDir $$(dirname $out) && ` +
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`${generate_notice} --text-output $tmpDir/NOTICE.txt --html-output $tmpDir/NOTICE.html -t "$title" -s $inputDir && ` +
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`${minigzip} -c $tmpDir/NOTICE.html > $out`,
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CommandDeps: []string{"${generate_notice}", "${minigzip}"},
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Description: "produce notice file $out",
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}, "tmpDir", "title", "inputDir")
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)
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func MergeNotices(ctx ModuleContext, mergedNotice WritablePath, noticePaths []Path) {
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ctx.Build(pctx, BuildParams{
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Rule: mergeNoticesRule,
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Description: "merge notices",
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Inputs: noticePaths,
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Output: mergedNotice,
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})
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}
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func BuildNoticeOutput(ctx ModuleContext, installPath OutputPath, installFilename string,
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noticePaths []Path) ModuleOutPath {
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// Merge all NOTICE files into one.
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// TODO(jungjw): We should just produce a well-formatted NOTICE.html file in a single pass.
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//
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// generate-notice-files.py, which processes the merged NOTICE file, has somewhat strict rules
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// about input NOTICE file paths.
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// 1. Their relative paths to the src root become their NOTICE index titles. We want to use
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// on-device paths as titles, and so output the merged NOTICE file the corresponding location.
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// 2. They must end with .txt extension. Otherwise, they're ignored.
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noticeRelPath := InstallPathToOnDevicePath(ctx, installPath.Join(ctx, installFilename+".txt"))
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mergedNotice := PathForModuleOut(ctx, filepath.Join("NOTICE_FILES/src", noticeRelPath))
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MergeNotices(ctx, mergedNotice, noticePaths)
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// Transform the merged NOTICE file into a gzipped HTML file.
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noticeOutput := PathForModuleOut(ctx, "NOTICE", "NOTICE.html.gz")
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tmpDir := PathForModuleOut(ctx, "NOTICE_tmp")
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title := "Notices for " + ctx.ModuleName()
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ctx.Build(pctx, BuildParams{
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Rule: generateNoticeRule,
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Description: "generate notice output",
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Input: mergedNotice,
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Output: noticeOutput,
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Args: map[string]string{
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"tmpDir": tmpDir.String(),
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"title": title,
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"inputDir": PathForModuleOut(ctx, "NOTICE_FILES/src").String(),
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},
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})
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return noticeOutput
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}
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