Pass declarations as separate arguments

Aconfig take declarations as separate arguments if there are multiple
declaration files.

Bug: 291926035
Test: build flags
Change-Id: Ic0d069184f48ceaf8947acc5b951eecff7c308f9

aconfig/aconfig_declarations.go

@@ -125,12 +125,12 @@ func (module *DeclarationsModule) GenerateAndroidBuildActions(ctx android.Module
 	intermediatePath := android.PathForModuleOut(ctx, "intermediate.pb")
 	ctx.Build(pctx, android.BuildParams{
 		Rule:        aconfigRule,
-		Inputs:      inputFiles,
 		Output:      intermediatePath,
 		Description: "aconfig_declarations",
 		Args: map[string]string{
 			"release_version": ctx.Config().ReleaseVersion(),
 			"package":         module.properties.Package,
+			"declarations":    android.JoinPathsWithPrefix(inputFiles, "--declarations "),
 			"values":          joinAndPrefix(" --values ", module.properties.Values),
 		},
 	})

aconfig/aconfig_declarations_test.go

@@ -26,7 +26,10 @@ func TestAconfigDeclarations(t *testing.T) {
 		aconfig_declarations {
 			name: "module_name",
 			package: "com.example.package",
-			srcs: ["foo.aconfig"],
+			srcs: [
+				"foo.aconfig",
+				"bar.aconfig",
+			],
 		}
 	`
 	result := runTest(t, android.FixtureExpectsNoErrors, bp)

aconfig/init.go

@@ -27,7 +27,7 @@ var (
 		blueprint.RuleParams{
 			Command: `${aconfig} create-cache` +
 				` --package ${package}` +
-				` --declarations ${in}` +
+				` ${declarations}` +
 				` ${values}` +
 				` --cache ${out}.tmp` +
 				` && ( if cmp -s ${out}.tmp ; then rm ${out}.tmp ; else mv ${out}.tmp ${out} ; fi )`,
@@ -36,7 +36,7 @@ var (
 				"${aconfig}",
 			},
 			Restat: true,
-		}, "release_version", "package", "values")
+		}, "release_version", "package", "declarations", "values")
 
 	// For java_aconfig_library: Generate java file
 	srcJarRule = pctx.AndroidStaticRule("aconfig_srcjar",