| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <algorithm> |
| #include <set> |
| |
| #include "base/command_line.h" |
| #include "tools/gn/commands.h" |
| #include "tools/gn/label_pattern.h" |
| #include "tools/gn/setup.h" |
| #include "tools/gn/standard_out.h" |
| #include "tools/gn/target.h" |
| |
| namespace commands { |
| |
| const char kLs[] = "ls"; |
| const char kLs_HelpShort[] = |
| "ls: List matching targets."; |
| const char kLs_Help[] = |
| "gn ls <build dir> [<label_pattern>] [--out] [--all-toolchains]\n" |
| "\n" |
| " Lists all targets matching the given pattern for the given builn\n" |
| " directory. By default, only targets in the default toolchain will\n" |
| " be matched unless a toolchain is explicitly supplied.\n" |
| "\n" |
| " If the label pattern is unspecified, list all targets. The label\n" |
| " pattern is not a general regular expression (see\n" |
| " \"gn help label_pattern\"). If you need more complex expressions,\n" |
| " pipe the result through grep.\n" |
| "\n" |
| " --out\n" |
| " Lists the results as the files generated by the matching targets.\n" |
| " These files will be relative to the build directory such that\n" |
| " they can be specified on Ninja's command line as a file to build.\n" |
| "\n" |
| " --all-toolchains\n" |
| " Matches all toolchains. If the label pattern does not specify an\n" |
| " explicit toolchain, labels from all toolchains will be matched.\n" |
| "\n" |
| "Examples\n" |
| "\n" |
| " gn ls out/Debug\n" |
| " Lists all targets in the default toolchain.\n" |
| "\n" |
| " gn ls out/Debug \"//base/*\"\n" |
| " Lists all targets in the directory base and all subdirectories.\n" |
| "\n" |
| " gn ls out/Debug \"//base:*\"\n" |
| " Lists all targets defined in //base/BUILD.gn.\n" |
| "\n" |
| " gn ls out/Debug //base --out\n" |
| " Lists the build output file for //base:base\n" |
| "\n" |
| " gn ls out/Debug \"//base/*\" --out | xargs ninja -C out/Debug\n" |
| " Builds all targets in //base and all subdirectories.\n" |
| "\n" |
| " gn ls out/Debug //base --all-toolchains\n" |
| " Lists all variants of the target //base:base (it may be referenced\n" |
| " in multiple toolchains).\n"; |
| |
| int RunLs(const std::vector<std::string>& args) { |
| if (args.size() != 1 && args.size() != 2) { |
| Err(Location(), "You're holding it wrong.", |
| "Usage: \"gn ls <build dir> [<label_pattern>]\"").PrintToStdout(); |
| return 1; |
| } |
| |
| Setup* setup = new Setup; |
| if (!setup->DoSetup(args[0], false) || !setup->Run()) |
| return 1; |
| |
| const CommandLine* cmdline = CommandLine::ForCurrentProcess(); |
| bool all_toolchains = cmdline->HasSwitch("all-toolchains"); |
| |
| // Find matching targets. |
| std::vector<const Target*> matches; |
| if (args.size() == 2) { |
| // Given a pattern, match it. |
| if (!ResolveTargetsFromCommandLinePattern(setup, args[1], all_toolchains, |
| &matches)) |
| return 1; |
| } else if (all_toolchains) { |
| // List all resolved targets. |
| matches = setup->builder()->GetAllResolvedTargets(); |
| } else { |
| // List all resolved targets in the default toolchain. |
| for (const auto& target : setup->builder()->GetAllResolvedTargets()) { |
| if (target->settings()->is_default()) |
| matches.push_back(target); |
| } |
| } |
| |
| if (cmdline->HasSwitch("out")) { |
| // List results as build files. |
| for (const auto& match : matches) { |
| OutputString(match->dependency_output_file().value()); |
| OutputString("\n"); |
| } |
| } else { |
| // List results as sorted labels. |
| std::vector<Label> sorted_matches; |
| for (const auto& match : matches) |
| sorted_matches.push_back(match->label()); |
| std::sort(sorted_matches.begin(), sorted_matches.end()); |
| |
| Label default_tc_label = setup->loader()->default_toolchain_label(); |
| for (const auto& match : sorted_matches) { |
| // Print toolchain only for ones not in the default toolchain. |
| OutputString(match.GetUserVisibleName( |
| match.GetToolchainLabel() != default_tc_label)); |
| OutputString("\n"); |
| } |
| } |
| |
| return 0; |
| } |
| |
| } // namespace commands |