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Commit 1b0893ee authored by Jiyong Park's avatar Jiyong Park
Browse files

Build canned_fs_config using RuleBuilder 

... in preparation for adding the support for custom canned fs config

Bug: 209971551
Test: m nothing
Change-Id: I7f2576ff99c65bdb6c9ce4ace61bc783eea2f0d4
parent 789e5026

apex/apex_test.go

+13 −14
Original line number Diff line number Diff line
@@ -2581,22 +2581,21 @@ func TestFilesInSubDir(t *testing.T) { 
	`)



	generateFsRule := ctx.ModuleForTests("myapex", "android_common_myapex_image").Rule("generateFsConfig")

	dirs := strings.Split(generateFsRule.Args["exec_paths"], " ")

	cmd := generateFsRule.RuleParams.Command



	// Ensure that the subdirectories are all listed

	ensureListContains(t, dirs, "etc")

	ensureListContains(t, dirs, "etc/foo")

	ensureListContains(t, dirs, "etc/foo/bar")

	ensureListContains(t, dirs, "lib64")

	ensureListContains(t, dirs, "lib64/foo")

	ensureListContains(t, dirs, "lib64/foo/bar")

	ensureListContains(t, dirs, "lib")

	ensureListContains(t, dirs, "lib/foo")

	ensureListContains(t, dirs, "lib/foo/bar")



	ensureListContains(t, dirs, "bin")

	ensureListContains(t, dirs, "bin/foo")

	ensureListContains(t, dirs, "bin/foo/bar")

	ensureContains(t, cmd, "/etc ")

	ensureContains(t, cmd, "/etc/foo ")

	ensureContains(t, cmd, "/etc/foo/bar ")

	ensureContains(t, cmd, "/lib64 ")

	ensureContains(t, cmd, "/lib64/foo ")

	ensureContains(t, cmd, "/lib64/foo/bar ")

	ensureContains(t, cmd, "/lib ")

	ensureContains(t, cmd, "/lib/foo ")

	ensureContains(t, cmd, "/lib/foo/bar ")

	ensureContains(t, cmd, "/bin ")

	ensureContains(t, cmd, "/bin/foo ")

	ensureContains(t, cmd, "/bin/foo/bar ")

}



func TestFilesInSubDirWhenNativeBridgeEnabled(t *testing.T) {

apex/builder.go

+59 −59
Original line number Diff line number Diff line
@@ -72,19 +72,6 @@ func init() { 
}



var (

	// Create a canned fs config file where all files and directories are

	// by default set to (uid/gid/mode) = (1000/1000/0644)

	// TODO(b/113082813) make this configurable using config.fs syntax

	generateFsConfig = pctx.StaticRule("generateFsConfig", blueprint.RuleParams{

		Command: `( set -e; echo '/ 1000 1000 0755' ` +

			`&& for i in ${ro_paths}; do echo "/$$i 1000 1000 0644"; done ` +

			`&& for i in  ${exec_paths}; do echo "/$$i 0 2000 0755"; done ` +

			`&& ( tr ' ' '\n' <${out}.apklist | for i in ${apk_paths}; do read apk; echo "/$$i 0 2000 0755"; zipinfo -1 $$apk | sed "s:\(.*\):/$$i/\1 1000 1000 0644:"; done ) ) > ${out}`,

		Description:    "fs_config ${out}",

		Rspfile:        "$out.apklist",

		RspfileContent: "$in",

	}, "ro_paths", "exec_paths", "apk_paths")



	apexManifestRule = pctx.StaticRule("apexManifestRule", blueprint.RuleParams{

		Command: `rm -f $out && ${jsonmodify} $in ` +

			`-a provideNativeLibs ${provideNativeLibs} ` +
@@ -583,55 +570,11 @@ func (a *apexBundle) buildUnflattenedApex(ctx android.ModuleContext) { 
	// Figure out if need to compress apex.

	compressionEnabled := ctx.Config().CompressedApex() && proptools.BoolDefault(a.properties.Compressible, false) && !a.testApex && !ctx.Config().UnbundledBuildApps()

	if apexType == imageApex {



		////////////////////////////////////////////////////////////////////////////////////

		// Step 2: create canned_fs_config which encodes filemode,uid,gid of each files

		// in this APEX. The file will be used by apexer in later steps.

		// TODO(jiyong): make this as a function

		// TODO(jiyong): use the RuleBuilder

		var readOnlyPaths = []string{"apex_manifest.json", "apex_manifest.pb"}

		var executablePaths []string // this also includes dirs

		var extractedAppSetPaths android.Paths

		var extractedAppSetDirs []string

		for _, f := range a.filesInfo {

			pathInApex := f.path()

			if f.installDir == "bin" || strings.HasPrefix(f.installDir, "bin/") {

				executablePaths = append(executablePaths, pathInApex)

				for _, d := range f.dataPaths {

					readOnlyPaths = append(readOnlyPaths, filepath.Join(f.installDir, d.RelativeInstallPath, d.SrcPath.Rel()))

				}

				for _, s := range f.symlinks {

					executablePaths = append(executablePaths, filepath.Join(f.installDir, s))

				}

			} else if f.class == appSet {

				extractedAppSetPaths = append(extractedAppSetPaths, f.builtFile)

				extractedAppSetDirs = append(extractedAppSetDirs, f.installDir)

			} else {

				readOnlyPaths = append(readOnlyPaths, pathInApex)

			}

			dir := f.installDir

			for !android.InList(dir, executablePaths) && dir != "" {

				executablePaths = append(executablePaths, dir)

				dir, _ = filepath.Split(dir) // move up to the parent

				if len(dir) > 0 {

					// remove trailing slash

					dir = dir[:len(dir)-1]

				}

			}

		}

		sort.Strings(readOnlyPaths)

		sort.Strings(executablePaths)

		cannedFsConfig := android.PathForModuleOut(ctx, "canned_fs_config")

		ctx.Build(pctx, android.BuildParams{

			Rule:        generateFsConfig,

			Output:      cannedFsConfig,

			Description: "generate fs config",

			Inputs:      extractedAppSetPaths,

			Args: map[string]string{

				"ro_paths":   strings.Join(readOnlyPaths, " "),

				"exec_paths": strings.Join(executablePaths, " "),

				"apk_paths":  strings.Join(extractedAppSetDirs, " "),

			},

		})

		cannedFsConfig := a.buildCannedFsConfig(ctx)

		implicitInputs = append(implicitInputs, cannedFsConfig)



		////////////////////////////////////////////////////////////////////////////////////
@@ -1072,3 +1015,60 @@ func (a *apexBundle) buildLintReports(ctx android.ModuleContext) { 


	a.lintReports = java.BuildModuleLintReportZips(ctx, depSetsBuilder.Build())

}



func (a *apexBundle) buildCannedFsConfig(ctx android.ModuleContext) android.OutputPath {

	var readOnlyPaths = []string{"apex_manifest.json", "apex_manifest.pb"}

	var executablePaths []string // this also includes dirs

	var appSetDirs []string

	appSetFiles := make(map[string]android.Path)

	for _, f := range a.filesInfo {

		pathInApex := f.path()

		if f.installDir == "bin" || strings.HasPrefix(f.installDir, "bin/") {

			executablePaths = append(executablePaths, pathInApex)

			for _, d := range f.dataPaths {

				readOnlyPaths = append(readOnlyPaths, filepath.Join(f.installDir, d.RelativeInstallPath, d.SrcPath.Rel()))

			}

			for _, s := range f.symlinks {

				executablePaths = append(executablePaths, filepath.Join(f.installDir, s))

			}

		} else if f.class == appSet {

			appSetDirs = append(appSetDirs, f.installDir)

			appSetFiles[f.installDir] = f.builtFile

		} else {

			readOnlyPaths = append(readOnlyPaths, pathInApex)

		}

		dir := f.installDir

		for !android.InList(dir, executablePaths) && dir != "" {

			executablePaths = append(executablePaths, dir)

			dir, _ = filepath.Split(dir) // move up to the parent

			if len(dir) > 0 {

				// remove trailing slash

				dir = dir[:len(dir)-1]

			}

		}

	}

	sort.Strings(readOnlyPaths)

	sort.Strings(executablePaths)

	sort.Strings(appSetDirs)



	cannedFsConfig := android.PathForModuleOut(ctx, "canned_fs_config")

	builder := android.NewRuleBuilder(pctx, ctx)

	cmd := builder.Command()

	cmd.Text("(")

	cmd.Text("echo '/ 1000 1000 0755';")

	for _, p := range readOnlyPaths {

		cmd.Textf("echo '/%s 1000 1000 0644';", p)

	}

	for _, p := range executablePaths {

		cmd.Textf("echo '/%s 0 2000 0755';", p)

	}

	for _, dir := range appSetDirs {

		cmd.Textf("echo '/%s 0 2000 0755';", dir)

		file := appSetFiles[dir]

		cmd.Text("zipinfo -1").Input(file).Textf(`| sed "s:\(.*\):/%s/\1 1000 1000 0644:";`, dir)

	}

	cmd.Text(")").FlagWithOutput("> ", cannedFsConfig)

	builder.Build("generateFsConfig", fmt.Sprintf("Generating canned fs config for %s", a.BaseModuleName()))



	return cannedFsConfig.OutputPath

}