Added EXTRA_ALLOWED_DEPS_TXT to allow arbitrary allowedlist text files that enforces min_sdk_version for apex dependencies to avoid regression

Test: Ran APEX soong tests and manual test
Bug: 333868045

Merged-In: I7b0c7f32687d922dde41150f947c1b993998338f
Change-Id: I7b0c7f32687d922dde41150f947c1b993998338f
diff --git a/apex/apex_singleton.go b/apex/apex_singleton.go
index f405cb2..00dd446 100644
--- a/apex/apex_singleton.go
+++ b/apex/apex_singleton.go
@@ -18,6 +18,7 @@
 
 import (
 	"encoding/json"
+	"strings"
 
 	"github.com/google/blueprint"
 
@@ -58,9 +59,9 @@
 
 	// 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}",
+		Description: "Diff ${allowed_deps_list} and ${new_allowed_deps}",
 		Command: `
-			if grep -v '^#' ${allowed_deps} | diff -B - ${new_allowed_deps}; then
+			if grep -v -h '^#' ${allowed_deps_list} | sort -u -f| diff -B -u - ${new_allowed_deps}; then
 			   touch ${out};
 			else
 				echo -e "\n******************************";
@@ -81,10 +82,15 @@
 				exit 1;
 			fi;
 		`,
-	}, "allowed_deps", "new_allowed_deps")
+	}, "allowed_deps_list", "new_allowed_deps")
 )
 
 func (s *apexDepsInfoSingleton) GenerateBuildActions(ctx android.SingletonContext) {
+	allowedDepsSources := []android.OptionalPath{android.ExistentPathForSource(ctx, "packages/modules/common/build/allowed_deps.txt")}
+	extraAllowedDepsPath := ctx.Config().ExtraAllowedDepsTxt()
+	if extraAllowedDepsPath != "" {
+		allowedDepsSources = append(allowedDepsSources, android.ExistentPathForSource(ctx, extraAllowedDepsPath))
+	}
 	updatableFlatLists := android.Paths{}
 	ctx.VisitAllModules(func(module android.Module) {
 		if binaryInfo, ok := module.(android.ApexBundleDepsInfoIntf); ok {
@@ -96,37 +102,42 @@
 			}
 		}
 	})
-
-	allowedDepsSource := android.ExistentPathForSource(ctx, "packages/modules/common/build/allowed_deps.txt")
 	newAllowedDeps := android.PathForOutput(ctx, "apex", "depsinfo", "new-allowed-deps.txt")
 	s.allowedApexDepsInfoCheckResult = android.PathForOutput(ctx, newAllowedDeps.Rel()+".check")
-
-	if !allowedDepsSource.Valid() {
+	hasOneValidDepsPath := false
+	for _, allowedDepsSource := range allowedDepsSources {
+		if allowedDepsSource.Valid() {
+			hasOneValidDepsPath = true
+			updatableFlatLists = append(updatableFlatLists, allowedDepsSource.Path())
+		}
+	}
+	allowedDepsStrList := make([]string, len(allowedDepsSources))
+	for _, value := range allowedDepsSources {
+		allowedDepsStrList = append(allowedDepsStrList, value.String())
+	}
+	allowedDepsListString := strings.Join(allowedDepsStrList, " ")
+	if !hasOneValidDepsPath {
 		// Unbundled projects may not have packages/modules/common/ checked out; ignore those.
 		ctx.Build(pctx, android.BuildParams{
 			Rule:   android.Touch,
 			Output: s.allowedApexDepsInfoCheckResult,
 		})
 	} else {
-		allowedDeps := allowedDepsSource.Path()
-
 		ctx.Build(pctx, android.BuildParams{
 			Rule:   generateApexDepsInfoFilesRule,
-			Inputs: append(updatableFlatLists, allowedDeps),
+			Inputs: updatableFlatLists,
 			Output: newAllowedDeps,
 		})
-
 		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(),
+				"allowed_deps_list": allowedDepsListString,
+				"new_allowed_deps":  newAllowedDeps.String(),
 			},
 		})
 	}
-
 	ctx.Phony("apex-allowed-deps-check", s.allowedApexDepsInfoCheckResult)
 }
 
diff --git a/apex/apex_test.go b/apex/apex_test.go
index da6214d..cbb1a76 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -2185,6 +2185,151 @@
 		flatlist, "yourlib(minSdkVersion:29)")
 }
 
+func TestTrackCustomAllowedDepsInvalidDefaultTxt(t *testing.T) {
+	ctx := testApex(t, `
+		apex {
+			name: "myapex",
+			key: "myapex.key",
+			updatable: true,
+			native_shared_libs: [
+				"mylib",
+				"yourlib",
+			],
+			min_sdk_version: "29",
+		}
+
+		apex {
+			name: "myapex2",
+			key: "myapex.key",
+			updatable: false,
+			native_shared_libs: ["yourlib"],
+		}
+
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+
+		cc_library {
+			name: "mylib",
+			srcs: ["mylib.cpp"],
+			shared_libs: ["libbar"],
+			min_sdk_version: "29",
+			apex_available: ["myapex"],
+		}
+
+		cc_library {
+			name: "libbar",
+			stubs: { versions: ["29", "30"] },
+		}
+
+		cc_library {
+			name: "yourlib",
+			srcs: ["mylib.cpp"],
+			min_sdk_version: "29",
+			apex_available: ["myapex", "myapex2", "//apex_available:platform"],
+		}
+	`, withFiles(android.MockFS{
+		"packages/modules/common/build/custom_allowed_deps.txt": nil,
+	}),
+		android.FixtureModifyProductVariables(
+			func(variables android.FixtureProductVariables) {
+				variables.ExtraAllowedDepsTxt = proptools.StringPtr("packages/modules/common/build/custom_allowed_deps.txt")
+			},
+		))
+
+	depsinfo := ctx.SingletonForTests("apex_depsinfo_singleton")
+	inputs := depsinfo.Rule("generateApexDepsInfoFilesRule").BuildParams.Inputs.Strings()
+	android.AssertStringListContains(t, "updatable myapex should generate depsinfo file", inputs,
+		"out/soong/.intermediates/myapex/android_common_myapex/depsinfo/flatlist.txt")
+	android.AssertStringListDoesNotContain(t, "non-updatable myapex2 should not generate depsinfo file", inputs,
+		"out/soong/.intermediates/myapex2/android_common_myapex2/depsinfo/flatlist.txt")
+
+	myapex := ctx.ModuleForTests("myapex", "android_common_myapex")
+	flatlist := strings.Split(android.ContentFromFileRuleForTests(t, ctx,
+		myapex.Output("depsinfo/flatlist.txt")), "\n")
+	android.AssertStringListContains(t, "deps with stubs should be tracked in depsinfo as external dep",
+		flatlist, "libbar(minSdkVersion:(no version)) (external)")
+	android.AssertStringListDoesNotContain(t, "do not track if not available for platform",
+		flatlist, "mylib:(minSdkVersion:29)")
+	android.AssertStringListContains(t, "track platform-available lib",
+		flatlist, "yourlib(minSdkVersion:29)")
+}
+
+func TestTrackCustomAllowedDepsWithDefaultTxt(t *testing.T) {
+	ctx := testApex(t, `
+		apex {
+			name: "myapex",
+			key: "myapex.key",
+			updatable: true,
+			native_shared_libs: [
+				"mylib",
+				"yourlib",
+			],
+			min_sdk_version: "29",
+		}
+
+		apex {
+			name: "myapex2",
+			key: "myapex.key",
+			updatable: false,
+			native_shared_libs: ["yourlib"],
+		}
+
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+
+		cc_library {
+			name: "mylib",
+			srcs: ["mylib.cpp"],
+			shared_libs: ["libbar"],
+			min_sdk_version: "29",
+			apex_available: ["myapex"],
+		}
+
+		cc_library {
+			name: "libbar",
+			stubs: { versions: ["29", "30"] },
+		}
+
+		cc_library {
+			name: "yourlib",
+			srcs: ["mylib.cpp"],
+			min_sdk_version: "29",
+			apex_available: ["myapex", "myapex2", "//apex_available:platform"],
+		}
+	`, withFiles(android.MockFS{
+		"packages/modules/common/build/custom_allowed_deps.txt": nil,
+		"packages/modules/common/build/allowed_deps.txt":        nil,
+	}),
+		android.FixtureModifyProductVariables(
+			func(variables android.FixtureProductVariables) {
+				variables.ExtraAllowedDepsTxt = proptools.StringPtr("packages/modules/common/build/custom_allowed_deps.txt")
+			},
+		))
+
+	depsinfo := ctx.SingletonForTests("apex_depsinfo_singleton")
+	inputs := depsinfo.Rule("generateApexDepsInfoFilesRule").BuildParams.Inputs.Strings()
+	android.AssertStringListContains(t, "updatable myapex should generate depsinfo file", inputs,
+		"out/soong/.intermediates/myapex/android_common_myapex/depsinfo/flatlist.txt")
+	android.AssertStringListDoesNotContain(t, "non-updatable myapex2 should not generate depsinfo file", inputs,
+		"out/soong/.intermediates/myapex2/android_common_myapex2/depsinfo/flatlist.txt")
+
+	myapex := ctx.ModuleForTests("myapex", "android_common_myapex")
+	flatlist := strings.Split(android.ContentFromFileRuleForTests(t, ctx,
+		myapex.Output("depsinfo/flatlist.txt")), "\n")
+	android.AssertStringListContains(t, "deps with stubs should be tracked in depsinfo as external dep",
+		flatlist, "libbar(minSdkVersion:(no version)) (external)")
+	android.AssertStringListDoesNotContain(t, "do not track if not available for platform",
+		flatlist, "mylib:(minSdkVersion:29)")
+	android.AssertStringListContains(t, "track platform-available lib",
+		flatlist, "yourlib(minSdkVersion:29)")
+}
+
 func TestTrackAllowedDeps_SkipWithoutAllowedDepsTxt(t *testing.T) {
 	ctx := testApex(t, `
 		apex {