Implement tracking of BUILD.gn files used to define target, toolchain or

tools/gn/runtime_deps_unittest.cc

 // Copyright 2015 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 <stddef.h>
 
 #include <algorithm>
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "tools/gn/runtime_deps.h"
@@ skipping 33 matching lines @@
 // Tests an exe depending on different types of libraries.
 TEST(RuntimeDeps, Libs) {
   TestWithScope setup;
   Err err;
 
   // Dependency hierarchy: main(exe) -> static library
   //                                 -> shared library
   //                                 -> loadable module
   //                                 -> source set
 
-  Target stat(setup.settings(), Label(SourceDir("//"), "stat"));
+  Target stat(setup.settings(), Label(SourceDir("//"), "stat"), {});
   InitTargetWithType(setup, &stat, Target::STATIC_LIBRARY);
   stat.data().push_back("//stat.dat");
   ASSERT_TRUE(stat.OnResolved(&err));
 
-  Target shared(setup.settings(), Label(SourceDir("//"), "shared"));
+  Target shared(setup.settings(), Label(SourceDir("//"), "shared"), {});
   InitTargetWithType(setup, &shared, Target::SHARED_LIBRARY);
   shared.data().push_back("//shared.dat");
   ASSERT_TRUE(shared.OnResolved(&err));
 
-  Target loadable(setup.settings(), Label(SourceDir("//"), "loadable"));
+  Target loadable(setup.settings(), Label(SourceDir("//"), "loadable"), {});
   InitTargetWithType(setup, &loadable, Target::LOADABLE_MODULE);
   loadable.data().push_back("//loadable.dat");
   ASSERT_TRUE(loadable.OnResolved(&err));
 
-  Target set(setup.settings(), Label(SourceDir("//"), "set"));
+  Target set(setup.settings(), Label(SourceDir("//"), "set"), {});
   InitTargetWithType(setup, &set, Target::SOURCE_SET);
   set.data().push_back("//set.dat");
   ASSERT_TRUE(set.OnResolved(&err));
 
-  Target main(setup.settings(), Label(SourceDir("//"), "main"));
+  Target main(setup.settings(), Label(SourceDir("//"), "main"), {});
   InitTargetWithType(setup, &main, Target::EXECUTABLE);
   main.private_deps().push_back(LabelTargetPair(&stat));
   main.private_deps().push_back(LabelTargetPair(&shared));
   main.private_deps().push_back(LabelTargetPair(&loadable));
   main.private_deps().push_back(LabelTargetPair(&set));
   main.data().push_back("//main.dat");
   ASSERT_TRUE(main.OnResolved(&err));
 
   std::vector<std::pair<OutputFile, const Target*>> result =
       ComputeRuntimeDeps(&main);
@@ skipping 35 matching lines @@
 // the output, but executables that are data deps are included.
 TEST(RuntimeDeps, ExeDataDep) {
   TestWithScope setup;
   Err err;
 
   // Dependency hierarchy: main(exe) -> datadep(exe) -> final_in(source set)
   //                                 -> dep(exe) -> final_out(source set)
   // The final_in/out targets each have data files. final_in's should be
   // included, final_out's should not be.
 
-  Target final_in(setup.settings(), Label(SourceDir("//"), "final_in"));
+  Target final_in(setup.settings(), Label(SourceDir("//"), "final_in"), {});
   InitTargetWithType(setup, &final_in, Target::SOURCE_SET);
   final_in.data().push_back("//final_in.dat");
   ASSERT_TRUE(final_in.OnResolved(&err));
 
-  Target datadep(setup.settings(), Label(SourceDir("//"), "datadep"));
+  Target datadep(setup.settings(), Label(SourceDir("//"), "datadep"), {});
   InitTargetWithType(setup, &datadep, Target::EXECUTABLE);
   datadep.private_deps().push_back(LabelTargetPair(&final_in));
   ASSERT_TRUE(datadep.OnResolved(&err));
 
-  Target final_out(setup.settings(), Label(SourceDir("//"), "final_out"));
+  Target final_out(setup.settings(), Label(SourceDir("//"), "final_out"), {});
   InitTargetWithType(setup, &final_out, Target::SOURCE_SET);
   final_out.data().push_back("//final_out.dat");
   ASSERT_TRUE(final_out.OnResolved(&err));
 
-  Target dep(setup.settings(), Label(SourceDir("//"), "dep"));
+  Target dep(setup.settings(), Label(SourceDir("//"), "dep"), {});
   InitTargetWithType(setup, &dep, Target::EXECUTABLE);
   dep.private_deps().push_back(LabelTargetPair(&final_out));
   ASSERT_TRUE(dep.OnResolved(&err));
 
-  Target main(setup.settings(), Label(SourceDir("//"), "main"));
+  Target main(setup.settings(), Label(SourceDir("//"), "main"), {});
   InitTargetWithType(setup, &main, Target::EXECUTABLE);
   main.private_deps().push_back(LabelTargetPair(&dep));
   main.data_deps().push_back(LabelTargetPair(&datadep));
   ASSERT_TRUE(main.OnResolved(&err));
 
   std::vector<std::pair<OutputFile, const Target*>> result =
       ComputeRuntimeDeps(&main);
 
   // The result should have deps of main, datadep, final_in.dat
   ASSERT_EQ(3u, result.size()) << GetVectorDescription(result);
@@ skipping 15 matching lines @@
 // included.
 TEST(RuntimeDeps, ActionOutputs) {
   TestWithScope setup;
   Err err;
 
   // Dependency hierarchy: main(exe) -> datadep (action)
   //                                 -> datadep_copy (copy)
   //                                 -> dep (action)
   //                                 -> dep_copy (copy)
 
-  Target datadep(setup.settings(), Label(SourceDir("//"), "datadep"));
+  Target datadep(setup.settings(), Label(SourceDir("//"), "datadep"), {});
   InitTargetWithType(setup, &datadep, Target::ACTION);
   datadep.data().push_back("//datadep.data");
   datadep.action_values().outputs() =
       SubstitutionList::MakeForTest("//datadep.output");
   ASSERT_TRUE(datadep.OnResolved(&err));
 
-  Target datadep_copy(setup.settings(), Label(SourceDir("//"), "datadep_copy"));
+  Target datadep_copy(setup.settings(), Label(SourceDir("//"), "datadep_copy"),
+                      {});
   InitTargetWithType(setup, &datadep_copy, Target::COPY_FILES);
   datadep_copy.sources().push_back(SourceFile("//input"));
   datadep_copy.data().push_back("//datadep_copy.data");
   datadep_copy.action_values().outputs() =
       SubstitutionList::MakeForTest("//datadep_copy.output");
   ASSERT_TRUE(datadep_copy.OnResolved(&err));
 
-  Target dep(setup.settings(), Label(SourceDir("//"), "dep"));
+  Target dep(setup.settings(), Label(SourceDir("//"), "dep"), {});
   InitTargetWithType(setup, &dep, Target::ACTION);
   dep.data().push_back("//dep.data");
   dep.action_values().outputs() =
       SubstitutionList::MakeForTest("//dep.output");
   ASSERT_TRUE(dep.OnResolved(&err));
 
-  Target dep_copy(setup.settings(), Label(SourceDir("//"), "dep_copy"));
+  Target dep_copy(setup.settings(), Label(SourceDir("//"), "dep_copy"), {});
   InitTargetWithType(setup, &dep_copy, Target::COPY_FILES);
   dep_copy.sources().push_back(SourceFile("//input"));
   dep_copy.data().push_back("//dep_copy/data/");  // Tests a directory.
   dep_copy.action_values().outputs() =
       SubstitutionList::MakeForTest("//dep_copy.output");
   ASSERT_TRUE(dep_copy.OnResolved(&err));
 
-  Target main(setup.settings(), Label(SourceDir("//"), "main"));
+  Target main(setup.settings(), Label(SourceDir("//"), "main"), {});
   InitTargetWithType(setup, &main, Target::EXECUTABLE);
   main.private_deps().push_back(LabelTargetPair(&dep));
   main.private_deps().push_back(LabelTargetPair(&dep_copy));
   main.data_deps().push_back(LabelTargetPair(&datadep));
   main.data_deps().push_back(LabelTargetPair(&datadep_copy));
   ASSERT_TRUE(main.OnResolved(&err));
 
   std::vector<std::pair<OutputFile, const Target*>> result =
       ComputeRuntimeDeps(&main);
 
@@ skipping 40 matching lines @@
 
   // Dependency hierarchy:
   // main(exe) -> dep(bundle) -> dep(shared_library) -> dep(source set)
   //                          -> dep(bundle_data) -> dep(loadable_module)
   //                                                      -> data(lm.data)
   //                          -> datadep(datadep) -> data(dd.data)
 
   const SourceDir source_dir("//");
   const std::string& build_dir = setup.build_settings()->build_dir().value();
 
-  Target loadable_module(setup.settings(),
-                         Label(source_dir, "loadable_module"));
+  Target loadable_module(setup.settings(), Label(source_dir, "loadable_module"),
+                         {});
   InitTargetWithType(setup, &loadable_module, Target::LOADABLE_MODULE);
   loadable_module.data().push_back("//lm.data");
   ASSERT_TRUE(loadable_module.OnResolved(&err));
 
-  Target module_data(setup.settings(), Label(source_dir, "module_data"));
+  Target module_data(setup.settings(), Label(source_dir, "module_data"), {});
   InitTargetWithType(setup, &module_data, Target::BUNDLE_DATA);
   module_data.private_deps().push_back(LabelTargetPair(&loadable_module));
   module_data.bundle_data().file_rules().push_back(BundleFileRule(
       nullptr,
       std::vector<SourceFile>{SourceFile(build_dir + "loadable_module.so")},
       SubstitutionPattern::MakeForTest("{{bundle_resources_dir}}")));
   ASSERT_TRUE(module_data.OnResolved(&err));
 
-  Target source_set(setup.settings(), Label(source_dir, "sources"));
+  Target source_set(setup.settings(), Label(source_dir, "sources"), {});
   InitTargetWithType(setup, &source_set, Target::SOURCE_SET);
   source_set.sources().push_back(SourceFile(source_dir.value() + "foo.cc"));
   ASSERT_TRUE(source_set.OnResolved(&err));
 
-  Target dylib(setup.settings(), Label(source_dir, "dylib"));
+  Target dylib(setup.settings(), Label(source_dir, "dylib"), {});
   dylib.set_output_prefix_override(true);
   dylib.set_output_extension("");
   dylib.set_output_name("Bundle");
   InitTargetWithType(setup, &dylib, Target::SHARED_LIBRARY);
   dylib.private_deps().push_back(LabelTargetPair(&source_set));
   ASSERT_TRUE(dylib.OnResolved(&err));
 
-  Target dylib_data(setup.settings(), Label(source_dir, "dylib_data"));
+  Target dylib_data(setup.settings(), Label(source_dir, "dylib_data"), {});
   InitTargetWithType(setup, &dylib_data, Target::BUNDLE_DATA);
   dylib_data.private_deps().push_back(LabelTargetPair(&dylib));
   dylib_data.bundle_data().file_rules().push_back(BundleFileRule(
       nullptr, std::vector<SourceFile>{SourceFile(build_dir + "dylib")},
       SubstitutionPattern::MakeForTest("{{bundle_executable_dir}}")));
   ASSERT_TRUE(dylib_data.OnResolved(&err));
 
-  Target data_dep(setup.settings(), Label(source_dir, "datadep"));
+  Target data_dep(setup.settings(), Label(source_dir, "datadep"), {});
   InitTargetWithType(setup, &data_dep, Target::EXECUTABLE);
   data_dep.data().push_back("//dd.data");
   ASSERT_TRUE(data_dep.OnResolved(&err));
 
-  Target bundle(setup.settings(), Label(source_dir, "bundle"));
+  Target bundle(setup.settings(), Label(source_dir, "bundle"), {});
   InitTargetWithType(setup, &bundle, Target::CREATE_BUNDLE);
   const std::string root_dir(build_dir + "Bundle.framework/Versions/A/");
   bundle.bundle_data().root_dir() = SourceDir(root_dir);
   bundle.bundle_data().resources_dir() = SourceDir(root_dir + "Resources");
   bundle.bundle_data().executable_dir() = SourceDir(root_dir + "MacOS");
   bundle.private_deps().push_back(LabelTargetPair(&dylib_data));
   bundle.private_deps().push_back(LabelTargetPair(&module_data));
   bundle.data_deps().push_back(LabelTargetPair(&data_dep));
   bundle.data().push_back("//b.data");
   ASSERT_TRUE(bundle.OnResolved(&err));
 
-  Target main(setup.settings(), Label(source_dir, "main"));
+  Target main(setup.settings(), Label(source_dir, "main"), {});
   InitTargetWithType(setup, &main, Target::EXECUTABLE);
   main.data_deps().push_back(LabelTargetPair(&bundle));
   ASSERT_TRUE(main.OnResolved(&err));
 
   std::vector<std::pair<OutputFile, const Target*>> result =
       ComputeRuntimeDeps(&main);
 
   // The result should have deps of main, datadep, final_in.dat
   ASSERT_EQ(5u, result.size()) << GetVectorDescription(result);
 
@@ skipping 17 matching lines @@
                         MakePair("../../b.data", &bundle)) !=
               result.end()) << GetVectorDescription(result);
 }
 
 // Tests that a dependency duplicated in regular and data deps is processed
 // as a data dep.
 TEST(RuntimeDeps, Dupe) {
   TestWithScope setup;
   Err err;
 
-  Target action(setup.settings(), Label(SourceDir("//"), "action"));
+  Target action(setup.settings(), Label(SourceDir("//"), "action"), {});
   InitTargetWithType(setup, &action, Target::ACTION);
   action.action_values().outputs() =
       SubstitutionList::MakeForTest("//action.output");
   ASSERT_TRUE(action.OnResolved(&err));
 
-  Target target(setup.settings(), Label(SourceDir("//"), "foo"));
+  Target target(setup.settings(), Label(SourceDir("//"), "foo"), {});
   InitTargetWithType(setup, &target, Target::EXECUTABLE);
   target.private_deps().push_back(LabelTargetPair(&action));
   target.data_deps().push_back(LabelTargetPair(&action));
   ASSERT_TRUE(target.OnResolved(&err));
 
   // The results should be the executable and the copy output.
   std::vector<std::pair<OutputFile, const Target*>> result =
       ComputeRuntimeDeps(&target);
   EXPECT_TRUE(std::find(result.begin(), result.end(),
                         MakePair("../../action.output", &action)) !=
@@ skipping 20 matching lines @@
   err = Err();
   EXPECT_TRUE(setup.ExecuteSnippet(
       "if (true) {\n"
       "  group(\"foo\") { write_runtime_deps = \"//out/Debug/foo.txt\" }\n"
       "} else {\n"
       "  group(\"bar\") { write_runtime_deps = \"//out/Debug/bar.txt\" }\n"
       "}", &err));
   EXPECT_EQ(1U, setup.items().size());
   EXPECT_EQ(1U, scheduler.GetWriteRuntimeDepsTargets().size());
 }