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Track allowed transitive deps in any updatable module.

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Instead of tracking per module and per module variant, track allowed
list of dependecies for all modules combined. This avoids issues with
different products and different downstream branches having different
build graphs.

To compare allowed_deps.txt vs head, run:
:; m -j out/soong/apex/depsinfo/new-allowed-deps.txt.check

To update source allowed_deps.txt, run:
:; build/soong/scripts/update-apex-allowed-deps.sh

Bug: 149622332
Test: m
Change-Id: I56771ba3fea748de8e9c58c80758670572f7af53
Merged-In: Ic518fbd9ebfe1b46aaf9a58df731780a7e5a676b
This commit is contained in:
Artur Satayev
2020-05-14 15:15:01 +01:00
parent f70ceecc4c
commit 453555083b
6 changed files with 363 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

74
apex/apex_singleton.go
View File

@@ -17,9 +17,9 @@
package apex
import (
"github.com/google/blueprint"
"android/soong/android"
"github.com/google/blueprint"
)
func init() {
@@ -27,39 +27,79 @@ func init() {
}
type apexDepsInfoSingleton struct {
// Output file with all flatlists from updatable modules' deps-info combined
updatableFlatListsPath android.OutputPath
allowedApexDepsInfoCheckResult android.OutputPath
}
func apexDepsInfoSingletonFactory() android.Singleton {
return &apexDepsInfoSingleton{}
}
var combineFilesRule = pctx.AndroidStaticRule("combineFilesRule",
blueprint.RuleParams{
Command: "cat $out.rsp | xargs cat > $out",
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 {
if path := binaryInfo.FlatListPath(); path != nil {
if binaryInfo.Updatable() {
updatableFlatLists = append(updatableFlatLists, path)
}
if path := binaryInfo.FlatListPath(); path != nil && binaryInfo.Updatable() {
updatableFlatLists = append(updatableFlatLists, path)
}
}
})
s.updatableFlatListsPath = android.PathForOutput(ctx, "apex", "depsinfo", "updatable-flatlists.txt")
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: combineFilesRule,
Description: "Generate " + s.updatableFlatListsPath.String(),
Inputs: updatableFlatLists,
Output: s.updatableFlatListsPath,
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())
}