Merge "init: add a copy_per_line built-in command" (4544d991) · Commits · e / os / android_system_core

init/README.md

+4 −0

Original line number	Diff line number	Diff line
		@@ -451,6 +451,10 @@ Commands
		exist. And it will be truncated if dst file is a normal regular file and
		already exists.

		`copy_per_line <src> <dst>`
		> Copies a file line by line. Similar to copy, but useful for dst is a sysfs node
		that doesn't handle multiple lines of data.

		`domainname <name>`
		> Set the domain name.

+19 −0

Original line number	Diff line number	Diff line
		@@ -88,6 +88,7 @@ using namespace std::literals::string_literals;

		using android::base::Basename;
		using android::base::SetProperty;
		using android::base::Split;
		using android::base::StartsWith;
		using android::base::StringPrintf;
		using android::base::unique_fd;
		@@ -968,6 +969,23 @@ static Result<void> do_copy(const BuiltinArguments& args) {
		return {};
		}

		static Result<void> do_copy_per_line(const BuiltinArguments& args) {
		std::string file_contents;
		if (!android::base::ReadFileToString(args[1], &file_contents, true)) {
		return Error() << "Could not read input file '" << args[1] << "'";
		}
		auto lines = Split(file_contents, "\n");
		for (const auto& line : lines) {
		auto result = WriteFile(args[2], line);
		if (!result.ok()) {
		LOG(VERBOSE) << "Could not write to output file '" << args[2] << "' with '" << line
		<< "' : " << result.error();
		}
		}

		return {};
		}

		static Result<void> do_chown(const BuiltinArguments& args) {
		auto uid = DecodeUid(args[1]);
		if (!uid.ok()) {
		@@ -1366,6 +1384,7 @@ const BuiltinFunctionMap& GetBuiltinFunctionMap() {
		{"class_start_post_data", {1, 1, {false, do_class_start_post_data}}},
		{"class_stop", {1, 1, {false, do_class_stop}}},
		{"copy", {2, 2, {true, do_copy}}},
		{"copy_per_line", {2, 2, {true, do_copy_per_line}}},
		{"domainname", {1, 1, {true, do_domainname}}},
		{"enable", {1, 1, {false, do_enable}}},
		{"exec", {1, kMax, {false, do_exec}}},