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/*
* Copyright (C) 2020 The Android Open Source Project
*
* 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 apex
import (
"android/soong/android"
"github.com/google/blueprint"
)
func init() {
android.RegisterSingletonType("apex_depsinfo_singleton", apexDepsInfoSingletonFactory)
}
type apexDepsInfoSingleton struct {
allowedApexDepsInfoCheckResult android.OutputPath
}
func apexDepsInfoSingletonFactory() android.Singleton {
return &apexDepsInfoSingleton{}
}
var (
// Generate new apex allowed_deps.txt by merging all internal dependencies.
generateApexDepsInfoFilesRule = pctx.AndroidStaticRule("generateApexDepsInfoFilesRule", blueprint.RuleParams{
Command: "cat $out.rsp | xargs cat" +
// Only track non-external dependencies, i.e. those that end up in the binary
" | grep -v '(external)'" +
// Ignore comments in any of the files
" | grep -v '^#'" +
" | sort -u -f >$out",
Rspfile: "$out.rsp",
RspfileContent: "$in",
})
// Diff two given lists while ignoring comments in the allowed deps file.
diffAllowedApexDepsInfoRule = pctx.AndroidStaticRule("diffAllowedApexDepsInfoRule", blueprint.RuleParams{
Description: "Diff ${allowed_deps} and ${new_allowed_deps}",
Command: `
if grep -v '^#' ${allowed_deps} | diff -B - ${new_allowed_deps}; then
touch ${out};
else
echo -e "\n******************************";
echo "ERROR: go/apex-allowed-deps-error";
echo "******************************";
echo "Detected changes to allowed dependencies in updatable modules.";
echo "To fix and update build/soong/apex/allowed_deps.txt, please run:";
echo "$$ (croot && build/soong/scripts/update-apex-allowed-deps.sh)";
echo "Members of mainline-modularization@google.com will review the changes.";
echo -e "******************************\n";
exit 1;
fi;
`,
}, "allowed_deps", "new_allowed_deps")
)
func (s *apexDepsInfoSingleton) GenerateBuildActions(ctx android.SingletonContext) {
updatableFlatLists := android.Paths{}
ctx.VisitAllModules(func(module android.Module) {
if binaryInfo, ok := module.(android.ApexBundleDepsInfoIntf); ok {
apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
if path := binaryInfo.FlatListPath(); path != nil {
if binaryInfo.Updatable() || apexInfo.Updatable {
updatableFlatLists = append(updatableFlatLists, path)
}
}
}
})
allowedDeps := android.ExistentPathForSource(ctx, "build/soong/apex/allowed_deps.txt").Path()
newAllowedDeps := android.PathForOutput(ctx, "apex", "depsinfo", "new-allowed-deps.txt")
ctx.Build(pctx, android.BuildParams{
Rule: generateApexDepsInfoFilesRule,
Inputs: append(updatableFlatLists, allowedDeps),
Output: newAllowedDeps,
})
s.allowedApexDepsInfoCheckResult = android.PathForOutput(ctx, newAllowedDeps.Rel()+".check")
ctx.Build(pctx, android.BuildParams{
Rule: diffAllowedApexDepsInfoRule,
Input: newAllowedDeps,
Output: s.allowedApexDepsInfoCheckResult,
Args: map[string]string{
"allowed_deps": allowedDeps.String(),
"new_allowed_deps": newAllowedDeps.String(),
},
})
}
func (s *apexDepsInfoSingleton) MakeVars(ctx android.MakeVarsContext) {
// Export check result to Make. The path is added to droidcore.
ctx.Strict("APEX_ALLOWED_DEPS_CHECK", s.allowedApexDepsInfoCheckResult.String())
}
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