GYP generator for GN

tools/gn/command_gyp.cc

 // Copyright (c) 2013 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 <fstream>
-
-#include "base/atomicops.h"
-#include "base/bind.h"
+#include <iostream>
+#include <map>
+#include <utility>
+#include <vector>
+
 #include "base/command_line.h"
-#include "base/file_util.h"
-#include "base/process/launch.h"
+#include "base/environment.h"
 #include "base/strings/string_number_conversions.h"
-#include "base/strings/string_util.h"
 #include "base/time/time.h"
 #include "tools/gn/build_settings.h"
 #include "tools/gn/commands.h"
 #include "tools/gn/err.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/ninja_target_writer.h"
-#include "tools/gn/ninja_writer.h"
-#include "tools/gn/output_file.h"
-#include "tools/gn/path_output.h"
+#include "tools/gn/gyp_helper.h"
+#include "tools/gn/gyp_target_writer.h"
+#include "tools/gn/item_node.h"
+#include "tools/gn/location.h"
 #include "tools/gn/setup.h"
+#include "tools/gn/source_file.h"
 #include "tools/gn/standard_out.h"
+#include "tools/gn/target.h"
 
 namespace commands {
 
 namespace {
 
+typedef GypTargetWriter::TargetPair TargetPair;
+typedef std::map<Label, TargetPair> CorrelatedTargetsMap;
+typedef std::map<SourceFile, std::vector<TargetPair> > GroupedTargetsMap;
+typedef std::map<std::string, std::string> StringStringMap;
+
+// Groups targets sharing the same label between debug and release.
+void CorrelateTargets(const std::vector<const Target*>& debug_targets,
+                      const std::vector<const Target*>& release_targets,
+                      CorrelatedTargetsMap* correlated) {
+  for (size_t i = 0; i < debug_targets.size(); i++) {
+    const Target* target = debug_targets[i];
+    (*correlated)[target->label()].debug = target;
+  }
+  for (size_t i = 0; i < release_targets.size(); i++) {
+    const Target* target = release_targets[i];
+    (*correlated)[target->label()].release = target;
+  }
+}
+
+// Verifies that both debug and release variants match. They can differ only
+// by flags.
+bool EnsureTargetsMatch(const TargetPair& pair, Err* err) {
+  // Check that both debug and release made this target.
+  if (!pair.debug || !pair.release) {
+    const Target* non_null_one = pair.debug ? pair.debug : pair.release;
+    *err = Err(Location(), "The debug and release builds did not both generate "
+        "a target with the name\n" +
+        non_null_one->label().GetUserVisibleName(true));
+    return false;
+  }
+
+  // Check the flags that determine if and where we write the GYP file.
+  if (pair.debug->item_node()->should_generate() !=
+          pair.release->item_node()->should_generate() ||
+      pair.debug->external() != pair.release->external() ||
+      pair.debug->gyp_file() != pair.release->gyp_file()) {
+    *err = Err(Location(), "The metadata for the target\n" +
+        pair.debug->label().GetUserVisibleName(true) +
+        "\ndoesn't match between the debug and release builds.");
+    return false;
+  }
+
+  // Check that the sources match.
+  if (pair.debug->sources().size() != pair.release->sources().size()) {
+    *err = Err(Location(), "The source file count for the target\n" +
+        pair.debug->label().GetUserVisibleName(true) +
+        "\ndoesn't have the same number of files between the debug and "
+        "release builds.");
+    return false;
+  }
+  for (size_t i = 0; i < pair.debug->sources().size(); i++) {
+    if (pair.debug->sources()[i] != pair.release->sources()[i]) {
+      *err = Err(Location(), "The debug and release version of the target \n" +
+          pair.debug->label().GetUserVisibleName(true) +
+          "\ndon't agree on the file\n" +
+          pair.debug->sources()[i].value());
+      return false;
+    }
+  }
+
+  // Check that the deps match.
+  if (pair.debug->deps().size() != pair.release->deps().size()) {
+    *err = Err(Location(), "The source file count for the target\n" +
+        pair.debug->label().GetUserVisibleName(true) +
+        "\ndoesn't have the same number of deps between the debug and "
+        "release builds.");
+    return false;
+  }
+  for (size_t i = 0; i < pair.debug->deps().size(); i++) {
+    if (pair.debug->deps()[i]->label() != pair.release->deps()[i]->label()) {
+      *err = Err(Location(), "The debug and release version of the target \n" +
+          pair.debug->label().GetUserVisibleName(true) +
+          "\ndon't agree on the dep\n" +
+          pair.debug->deps()[i]->label().GetUserVisibleName(true));
+      return false;
+    }
+  }
+
+  return true;
+}
+
+// Python uses shlex.split, which we partially emulate here.
+//
+// Advances to the next "word" in a GYP_DEFINES entry. This is something
+// separated by whitespace or '='. We allow backslash escaping and quoting.
+// The return value will be the index into the array immediately following the
+// word, and the contents of the word will be placed into |*word|.
+size_t GetNextGypDefinesWord(const std::string& defines,
+                             size_t cur,
+                             std::string* word) {
+  size_t i = cur;
+  bool is_quoted = false;
+  if (cur < defines.size() && defines[cur] == '"') {
+    i++;
+    is_quoted = true;
+  }
+
+  for (; i < defines.size(); i++) {
+    // Handle certain escape sequences: \\, \", \<space>.
+    if (defines[i] == '\\' && i < defines.size() - 1 &&
+        (defines[i + 1] == '\\' ||
+         defines[i + 1] == ' ' ||
+         defines[i + 1] == '=' ||
+         defines[i + 1] == '"')) {
+      i++;
+      word->push_back(defines[i]);
+      continue;
+    }
+    if (is_quoted && defines[i] == '"') {
+      // Got to the end of the quoted sequence.
+      return i + 1;
+    }
+    if (!is_quoted && (defines[i] == ' ' || defines[i] == '=')) {
+      return i;
+    }
+    word->push_back(defines[i]);
+  }
+  return i;
+}
+
+// Advances to the beginning of the next word, or the size of the string if
+// the end was encountered.
+size_t AdvanceToNextGypDefinesWord(const std::string& defines, size_t cur) {
+  while (cur < defines.size() && defines[cur] == ' ')
+    cur++;
+  return cur;
+}
+
+// The GYP defines looks like:
+//   component=shared_library
+//   component=shared_library foo=1
+//   component=shared_library foo=1 windows_sdk_dir="C:\Program Files\..."
+StringStringMap GetGypDefines() {
+  StringStringMap result;
+
+  scoped_ptr<base::Environment> env(base::Environment::Create());
+  std::string defines;
+  if (!env->GetVar("GYP_DEFINES", &defines) || defines.empty())
+    return result;
+
+  size_t cur = 0;
+  while (cur < defines.size()) {
+    std::string key;
+    cur = AdvanceToNextGypDefinesWord(defines, cur);
+    cur = GetNextGypDefinesWord(defines, cur, &key);
+
+    // The words should be separated by an equals.
+    cur = AdvanceToNextGypDefinesWord(defines, cur);
+    if (cur == defines.size())
+      break;
+    if (defines[cur] != '=')
+      continue;
+    cur++;  // Skip over '='.
+
+    std::string value;
+    cur = AdvanceToNextGypDefinesWord(defines, cur);
+    cur = GetNextGypDefinesWord(defines, cur, &value);
+
+    result[key] = value;
+  }
+
+  return result;
+}
+
+// Returns a set of args from known GYP define values.
+Scope::KeyValueMap GetArgsFromGypDefines() {
+  StringStringMap gyp_defines = GetGypDefines();
+
+  Scope::KeyValueMap result;
+
+  if (gyp_defines["component"] == "shared_library") {
+    result["is_component_build"] = Value(NULL, true);
+  } else {
+    result["is_component_build"] = Value(NULL, false);
+  }
+
+  // Windows SDK path. GYP and the GN build use the same name.
+  const char kWinSdkPath[] = "windows_sdk_path";
+  if (gyp_defines[kWinSdkPath].empty())
+    result[kWinSdkPath] = Value(NULL, gyp_defines[kWinSdkPath]);
+
+  return result;
+}
+
+// Returns the number of targets, number of GYP files.
+std::pair<int, int> WriteGypFiles(
+    const BuildSettings& debug_settings,
+    const BuildSettings& release_settings,
+    Err* err) {
+  // Group all targets by output GYP file name.
+  std::vector<const Target*> debug_targets;
+  std::vector<const Target*> release_targets;
+  debug_settings.target_manager().GetAllTargets(&debug_targets);
+  release_settings.target_manager().GetAllTargets(&release_targets);
+
+  // Match up the debug and release version of each target by label.
+  CorrelatedTargetsMap correlated;
+  CorrelateTargets(debug_targets, release_targets, &correlated);
+
+  GypHelper helper;
+  GroupedTargetsMap grouped_targets;
+  int target_count = 0;
+  for (CorrelatedTargetsMap::iterator i = correlated.begin();
+       i != correlated.end(); ++i) {
+    const TargetPair& pair = i->second;
+    if (!EnsureTargetsMatch(pair, err))
+      return std::make_pair(0, 0);
+
+    if (!pair.debug->item_node()->should_generate())
+      continue;  // Skip non-generated ones.
+    if (pair.debug->external())
+      continue;  // Skip external ones.
+    if (pair.debug->gyp_file().is_null())
+      continue;  // Skip ones without GYP files.
+
+    target_count++;
+    grouped_targets[helper.GetGypFileForTarget(pair.debug, err)].push_back(
+        pair);
+    if (err->has_error())
+      return std::make_pair(0, 0);
+  }
+
+  // Write each GYP file.
+  for (GroupedTargetsMap::iterator i = grouped_targets.begin();
+       i != grouped_targets.end(); ++i) {
+    GypTargetWriter::WriteFile(i->first, i->second, err);
+    if (err->has_error())
+      return std::make_pair(0, 0);
+  }
+
+  return std::make_pair(target_count,
+                        static_cast<int>(grouped_targets.size()));
+}
+
+}  // namespace
+
 // Suppress output on success.
 const char kSwitchQuiet[] = "q";
 
-// Skip actually executing GYP. This is for when you're working on the GN
-// build and don't want to wait for GYP to regenerate. All GN files are
-// regenerated, but the GYP ones are not.
-const char kSwitchNoGyp[] = "no-gyp";
-
-// Where to have GYP write its outputs.
-const char kDirOut[] = "out.gn";
-
-// We'll do the GN build to here.
-const char kBuildSourceDir[] = "//out.gn/Debug/";
-
-// File that GYP will write dependency information to.
-const char kGypDepsSourceFileName[] = "//out.gn/gyp_deps.txt";
-
-void TargetResolvedCallback(base::subtle::Atomic32* write_counter,
-                            const Target* target) {
-  base::subtle::NoBarrier_AtomicIncrement(write_counter, 1);
-  NinjaTargetWriter::RunAndWriteFile(target);
-}
-
-bool SimpleNinjaParse(const std::string& data,
-                      std::set<std::string>* subninjas,
-                      size_t* first_subninja_offset) {
-  const size_t kSubninjaPrefixLen = 10;
-  const char kSubninjaPrefix[kSubninjaPrefixLen + 1] = "\nsubninja ";
-
-  *first_subninja_offset = std::string::npos;
-  size_t next_subninja = 0;
-  while ((next_subninja = data.find(kSubninjaPrefix, next_subninja)) !=
-         std::string::npos) {
-    if (*first_subninja_offset == std::string::npos)
-      *first_subninja_offset = next_subninja;
-
-    size_t line_end = data.find('\n', next_subninja + 1);
-    if (line_end == std::string::npos)
-      return false;
-
-    std::string filename = data.substr(
-        next_subninja + kSubninjaPrefixLen,
-        line_end - next_subninja - kSubninjaPrefixLen);
-    TrimWhitespaceASCII(filename, TRIM_ALL, &filename);
-#if defined(OS_WIN)
-    // We always want our array to use forward slashes.
-    std::replace(filename.begin(), filename.end(), '\\', '/');
-#endif
-    subninjas->insert(filename);
-
-    next_subninja = line_end;
-  }
-  return *first_subninja_offset != std::string::npos;
-}
-
-bool FixupBuildNinja(const BuildSettings* build_settings,
-                     const base::FilePath& buildfile) {
-  std::string contents;
-  if (!base::ReadFileToString(buildfile, &contents)) {
-    Err(Location(), "Could not load " + FilePathToUTF8(buildfile))
-        .PrintToStdout();
-    return false;
-  }
-
-  std::set<std::string> subninjas;
-  size_t first_subninja_offset = 0;
-  if (!SimpleNinjaParse(contents, &subninjas, &first_subninja_offset)) {
-    Err(Location(), "Could not parse " + FilePathToUTF8(buildfile))
-        .PrintToStdout();
-    return false;
-  }
-
-  // Write toolchain files.
-  std::vector<const Settings*> all_settings;
-  if (!NinjaWriter::RunAndWriteToolchainFiles(
-          build_settings, subninjas, &all_settings))
-    return false;
-
-  // Copy first part of buildfile to the output.
-  std::ofstream file;
-  file.open(FilePathToUTF8(buildfile).c_str(),
-            std::ios_base::out | std::ios_base::binary);
-  if (file.fail()) {
-    Err(Location(), "Could not write " + FilePathToUTF8(buildfile))
-        .PrintToStdout();
-    return false;
-  }
-  file.write(contents.data(), first_subninja_offset);
-
-  // Add refs for our toolchains to the original build.ninja.
-  NinjaHelper helper(build_settings);
-  PathOutput path_output(build_settings->build_dir(), ESCAPE_NINJA, true);
-  file << "\n# GN-added toolchain files.\n";
-  for (size_t i = 0; i < all_settings.size(); i++) {
-    file << "subninja ";
-    path_output.WriteFile(file,
-                          helper.GetNinjaFileForToolchain(all_settings[i]));
-    file << std::endl;
-  }
-  file << "\n# GYP-written subninjas.";
-
-  // Write remaining old subninjas from original file.
-  file.write(&contents[first_subninja_offset],
-             contents.size() - first_subninja_offset);
-  return true;
-}
-
-bool RunGyp(const BuildSettings* build_settings) {
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(kSwitchQuiet))
-    OutputString("Running GYP...\n");
-
-  const base::FilePath& python_path = build_settings->python_path();
-
-  // Construct the command line. Note that AppendArgPath and AppendSwitchPath
-  // don't preserve the relative ordering, and we need the python file to be
-  // first, so we have to convert switch values to strings before appending.
-  //
-  // Note that GYP will get confused if this path is quoted, so don't quote it
-  // and hope that there are no spaces!
-  CommandLine cmdline(python_path);
-  cmdline.AppendArgPath(
-      build_settings->GetFullPath(SourceFile("//build/gyp_chromium.py")));
-
-  // Override the default output directory so we can coexist in parallel
-  // with a normal Ninja GYP build.
-  cmdline.AppendArg("-G");
-  cmdline.AppendArg(std::string("output_dir=") + kDirOut);
-
-  // Force the Ninja generator.
-  cmdline.AppendArg("-f");
-  cmdline.AppendArg("ninja");
-
-  // Write deps for libraries so we can pick them up.
-  cmdline.AppendArg("-G");
-  cmdline.AppendArg("link_deps_file=" + FilePathToUTF8(
-      build_settings->GetFullPath(SourceFile(kGypDepsSourceFileName))));
-
-  std::string output;
-  if (!base::GetAppOutput(cmdline, &output)) {
-    Err(Location(), "GYP execution failed.", output).PrintToStdout();
-    return false;
-  }
-  return true;
-}
-
-}  // namespace
-
-// Converts a GYP qualified target which looks like:
-// "/home/you/src/third_party/icu/icu.gyp:icui18n#target" to a GN label like
-// "//third_party/icu:icui18n". On failure returns an empty label and sets the
-// error.
-Label GypQualifiedTargetToLabel(const std::string& source_root_prefix,
-                                const base::StringPiece& target,
-                                Err* err) {
-  // Prefix should end in canonical path separator.
-  const char kSep = static_cast<char>(base::FilePath::kSeparators[0]);
-  DCHECK(source_root_prefix[source_root_prefix.size() - 1] == kSep);
-
-  if (!target.starts_with(source_root_prefix)) {
-    *err = Err(Location(), "GYP deps parsing failed.",
-        "The line was \"" + target.as_string() + "\" and it should have "
-        "started with \"" + source_root_prefix + "\"");
-    return Label();
-  }
-
-  size_t begin = source_root_prefix.size();
-  size_t colon = target.find(':', begin);
-  if (colon == std::string::npos) {
-    *err = Err(Location(), "Expected :", target.as_string());
-    return Label();
-  }
-
-  size_t octothorpe = target.find('#', colon);
-  if (octothorpe == std::string::npos) {
-    *err = Err(Location(), "Expected #", target.as_string());
-    return Label();
-  }
-
-  // This will look like "third_party/icu/icu.gyp"
-  base::StringPiece gyp_file = target.substr(begin, colon - begin);
-
-  // Strip the file name from the end to get "third_party/icu".
-  size_t last_sep = gyp_file.find_last_of(kSep);
-  if (last_sep == std::string::npos) {
-    *err = Err(Location(), "Expected path separator.", target.as_string());
-    return Label();
-  }
-  base::StringPiece path = gyp_file.substr(0, last_sep);
-  SourceDir dir("//" + path.as_string());
-
-  base::StringPiece name = target.substr(colon + 1, octothorpe - colon - 1);
-
-  return Label(dir, name);
-}
-
-// Parses the link deps file, filling the given map. Returns true on sucess.
-// On failure fills the error and returns false.
-//
-// Example format for each line:
-//   /home/you/src/third_party/icu/icu.gyp:icui18n#target lib/libi18n.so
-bool ParseLinkDepsFile(const BuildSettings* build_settings,
-                       const std::string& contents,
-                       BuildSettings::AdditionalLibsMap* deps,
-                       Err* err) {
-  std::string source_root_prefix = FilePathToUTF8(build_settings->root_path());
-  source_root_prefix.push_back(base::FilePath::kSeparators[0]);
-
-  size_t cur = 0;
-  while (cur < contents.size()) {
-    // The source file is everything up to the space.
-    size_t space = contents.find(' ', cur);
-    if (space == std::string::npos)
-      break;
-    Label source(GypQualifiedTargetToLabel(
-        source_root_prefix,
-        base::StringPiece(&contents[cur], space - cur),
-        err));
-    if (source.is_null())
-      return false;
-
-    // The library file is everything between the space and EOL.
-    cur = space + 1;
-    size_t eol = contents.find('\n', cur);
-    if (eol == std::string::npos) {
-      *err = Err(Location(), "Expected newline at end of link deps file.");
-      return false;
-    }
-    OutputFile lib(contents.substr(cur, eol - cur));
-
-    deps->insert(std::make_pair(source, lib));
-    cur = eol + 1;
-  }
-  return true;
-}
-
 const char kGyp[] = "gyp";
 const char kGyp_HelpShort[] =
-    "gyp: Run GYP and then GN.";
-const char kGyp_Help[] =
-    "gyp: Run GYP and then GN.\n"
-    "\n"
-    "  Generate a hybrid GYP/GN build where some targets are generated by\n"
-    "  each of the tools. As long as target names and locations match between\n"
-    "  the two tools, they can depend on each other.\n"
-    "\n"
-    "  When GN is run in this mode, it will not write out any targets\n"
-    "  annotated with \"external = true\". Otherwise, GYP targets with the\n"
-    "  same name and location will be overwritten.\n"
-    "\n"
-    "  References to the GN ninja files will be inserted into the\n"
-    "  GYP-generated build.ninja file.\n"
-    "\n"
-    "Option:\n"
-    "  --no-gyp\n"
-    "      Don't actually run GYP or modify build.ninja. This is used when\n"
-    "      working on the GN build when it is known that no GYP files have\n"
-    "      changed and you want it to run faster.\n";
-
-// Note: partially duplicated from command_gen.cc.
+    "gyp: Make GYP files from GN.";
+const char kGyp_Help[] = "Doooooom.\n";
+
 int RunGyp(const std::vector<std::string>& args) {
   const CommandLine* cmdline = CommandLine::ForCurrentProcess();
-  bool no_gyp = cmdline->HasSwitch(kSwitchNoGyp);
+
+  base::TimeTicks begin_time = base::TimeTicks::Now();
 
   // Deliberately leaked to avoid expensive process teardown.
-  Setup* setup = new Setup;
-  if (!setup->DoSetup())
+  Setup* setup_debug = new Setup;
+  if (!setup_debug->DoSetup())
     return 1;
-
-  setup->build_settings().SetBuildDir(SourceDir(kBuildSourceDir));
-  setup->build_settings().set_using_external_generator(true);
-
-  // Provide a way for buildfiles to know we're doing a GYP build.
-  /*
-  Scope::KeyValueMap variable_overrides;
-  variable_overrides["is_gyp"] = Value(NULL, true);
-  setup->build_settings().build_args().AddArgOverrides(variable_overrides);
-  */
-
-  base::FilePath link_deps_file =
-      setup->build_settings().GetFullPath(SourceFile(kGypDepsSourceFileName));
-  if (!no_gyp)
-    base::DeleteFile(link_deps_file, false);
-
-  base::TimeTicks begin_time = base::TimeTicks::Now();
-  if (!no_gyp) {
-    if (!RunGyp(&setup->build_settings()))
-      return 1;
-  }
-  base::TimeTicks end_gyp_time = base::TimeTicks::Now();
-
-  // Read in the GYP link dependencies.
-  std::string link_deps_contents;
-  if (!base::ReadFileToString(link_deps_file, &link_deps_contents)) {
-    Err(Location(), "Couldn't load link deps file.",
-        FilePathToUTF8(link_deps_file)).PrintToStdout();
+  const char kIsDebug[] = "is_debug";
+  setup_debug->build_settings().build_args().AddArgOverrides(
+      GetArgsFromGypDefines());
+  setup_debug->build_settings().build_args().AddArgOverride(
+      kIsDebug, Value(NULL, true));
+
+  // Make a release build based on the debug one. We use a new directory for
+  // the build output so that they don't stomp on each other.
+  DependentSetup* setup_release = new DependentSetup(*setup_debug);
+  setup_release->build_settings().build_args().AddArgOverride(
+      kIsDebug, Value(NULL, false));
+  setup_release->build_settings().SetBuildDir(
+      SourceDir(setup_release->build_settings().build_dir().value() +
+                "gn_release.tmp/"));
+
+  // Run both debug and release builds in parallel.
+  setup_release->RunPreMessageLoop();
+  if (!setup_debug->Run())
     return 1;
-  }
+  if (!setup_release->RunPostMessageLoop())
+    return 1;
+
   Err err;
-  if (!ParseLinkDepsFile(&setup->build_settings(),
-                         link_deps_contents,
-                         &setup->build_settings().external_link_deps(), &err)) {
+  std::pair<int, int> counts = WriteGypFiles(setup_debug->build_settings(),
+                                             setup_release->build_settings(),
+                                             &err);
+  if (err.has_error()) {
     err.PrintToStdout();
     return 1;
   }
 
-  if (!cmdline->HasSwitch(kSwitchQuiet))
-    OutputString("Running GN...\n");
-
-  // Cause the load to also generate the ninja files for each target. We wrap
-  // the writing to maintain a counter.
-  base::subtle::Atomic32 write_counter = 0;
-  setup->build_settings().set_target_resolved_callback(
-      base::Bind(&TargetResolvedCallback, &write_counter));
-
-  // Do the actual load. This will also write out the target ninja files.
-  if (!setup->Run())
-    return 1;
-
-  // Integrate with the GYP build.
-  if (!no_gyp) {
-    base::FilePath ninja_buildfile(setup->build_settings().GetFullPath(
-        SourceFile(setup->build_settings().build_dir().value() +
-                   "build.ninja")));
-    if (!FixupBuildNinja(&setup->build_settings(), ninja_buildfile))
-      return 1;
-  }
-
   // Timing info.
   base::TimeTicks end_time = base::TimeTicks::Now();
   if (!cmdline->HasSwitch(kSwitchQuiet)) {
     OutputString("Done. ", DECORATION_GREEN);
 
     std::string stats = "Wrote " +
-        base::IntToString(static_cast<int>(write_counter)) +
-        " targets from " +
+        base::IntToString(counts.first) + " targets to " +
+        base::IntToString(counts.second) + " GYP files read from " +
         base::IntToString(
-            setup->scheduler().input_file_manager()->GetInputFileCount()) +
-        " files in " +
-        base::IntToString((end_time - end_gyp_time).InMilliseconds()) + "ms " +
-        "(GYP took " +
-        base::IntToString((end_gyp_time - begin_time).InMilliseconds()) +
-        "ms)\n";
+            setup_debug->scheduler().input_file_manager()->GetInputFileCount())
+        + " GN files in " +
+        base::IntToString((end_time - begin_time).InMilliseconds()) + "ms\n";
 
     OutputString(stats);
   }
 
   return 0;
 }
 
 }  // namespace commands