Revert of [GN] Add JSON project writer

tools/gn/command_gen.cc

Index: tools/gn/command_gen.cc
diff --git a/tools/gn/command_gen.cc b/tools/gn/command_gen.cc
index 06b99ca1124d6a63fb92907b190fbe3874dca054..3d442745c393970e383074971a14c0f1e33db26d 100644
--- a/tools/gn/command_gen.cc
+++ b/tools/gn/command_gen.cc
@@ -11,7 +11,6 @@
 #include "tools/gn/build_settings.h"
 #include "tools/gn/commands.h"
 #include "tools/gn/eclipse_writer.h"
-#include "tools/gn/json_project_writer.h"
 #include "tools/gn/ninja_target_writer.h"
 #include "tools/gn/ninja_writer.h"
 #include "tools/gn/qt_creator_writer.h"
@@ -37,14 +36,10 @@
 const char kSwitchIdeValueVs2013[] = "vs2013";
 const char kSwitchIdeValueVs2015[] = "vs2015";
 const char kSwitchIdeValueXcode[] = "xcode";
-const char kSwitchIdeValueJson[] = "json";
 const char kSwitchNinjaExtraArgs[] = "ninja-extra-args";
 const char kSwitchRootTarget[] = "root-target";
 const char kSwitchSln[] = "sln";
 const char kSwitchWorkspace[] = "workspace";
-const char kSwitchJsonFileName[] = "json-file-name";
-const char kSwitchJsonIdeScript[] = "json-ide-script";
-const char kSwitchJsonIdeScriptArgs[] = "json-ide-script-args";
 
 // Called on worker thread to write the ninja file.
 void BackgroundDoWrite(const Target* target) {
@@ -118,7 +113,7 @@
 
   if (generator) {
     err += "but this file was not generated by any dependencies of the " +
-           target_str + ". The target\nthat generates the file is:\n  ";
+        target_str + ". The target\nthat generates the file is:\n  ";
     err += generator->label().GetUserVisibleName(show_toolchains);
   } else {
     err += "but no targets in the build generate that file.";
@@ -171,12 +166,11 @@
                   Err* err) {
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();
-  bool quiet = command_line->HasSwitch(switches::kQuiet);
   base::ElapsedTimer timer;
 
   if (ide == kSwitchIdeValueEclipse) {
     bool res = EclipseWriter::RunAndWriteFile(build_settings, builder, err);
-    if (res && !quiet) {
+    if (res && !command_line->HasSwitch(switches::kQuiet)) {
       OutputString("Generating Eclipse settings took " +
                    base::Int64ToString(timer.Elapsed().InMilliseconds()) +
                    "ms\n");
@@ -195,7 +189,7 @@
       filters = command_line->GetSwitchValueASCII(kSwitchFilters);
     bool res = VisualStudioWriter::RunAndWriteFiles(
         build_settings, builder, version, sln_name, filters, err);
-    if (res && !quiet) {
+    if (res && !command_line->HasSwitch(switches::kQuiet)) {
       OutputString("Generating Visual Studio projects took " +
                    base::Int64ToString(timer.Elapsed().InMilliseconds()) +
                    "ms\n");
@@ -208,7 +202,7 @@
         command_line->GetSwitchValueASCII(kSwitchNinjaExtraArgs),
         command_line->GetSwitchValueASCII(kSwitchFilters), build_settings,
         builder, err);
-    if (res && !quiet) {
+    if (res && !command_line->HasSwitch(switches::kQuiet)) {
       OutputString("Generating Xcode projects took " +
                    base::Int64ToString(timer.Elapsed().InMilliseconds()) +
                    "ms\n");
@@ -220,32 +214,12 @@
       root_target = command_line->GetSwitchValueASCII(kSwitchRootTarget);
     bool res = QtCreatorWriter::RunAndWriteFile(build_settings, builder, err,
                                                 root_target);
-    if (res && !quiet) {
+    if (res && !command_line->HasSwitch(switches::kQuiet)) {
       OutputString("Generating QtCreator projects took " +
                    base::Int64ToString(timer.Elapsed().InMilliseconds()) +
                    "ms\n");
     }
     return res;
-  } else if (ide == kSwitchIdeValueJson) {
-    std::string file_name =
-        command_line->GetSwitchValueASCII(kSwitchJsonFileName);
-    if (file_name.empty())
-      file_name = "project.json";
-    std::string exec_script =
-        command_line->GetSwitchValueASCII(kSwitchJsonIdeScript);
-    std::string exec_script_extra_args =
-        command_line->GetSwitchValueASCII(kSwitchJsonIdeScriptArgs);
-    std::string filters = command_line->GetSwitchValueASCII(kSwitchFilters);
-
-    bool res = JSONProjectWriter::RunAndWriteFiles(
-        build_settings, builder, file_name, exec_script, exec_script_extra_args,
-        filters, quiet, err);
-    if (res && !quiet) {
-      OutputString("Generating JSON projects took " +
-                   base::Int64ToString(timer.Elapsed().InMilliseconds()) +
-                   "ms\n");
-    }
-    return res;
   }
 
   *err = Err(Location(), "Unknown IDE: " + ide);
@@ -255,7 +229,8 @@
 }  // namespace
 
 const char kGen[] = "gen";
-const char kGen_HelpShort[] = "gen: Generate ninja files.";
+const char kGen_HelpShort[] =
+    "gen: Generate ninja files.";
 const char kGen_Help[] =
     "gn gen: Generate ninja files.\n"
     "\n"
@@ -284,13 +259,12 @@
     "      \"vs2015\" - Visual Studio 2015 project/solution files.\n"
     "      \"xcode\" - Xcode workspace/solution files.\n"
     "      \"qtcreator\" - QtCreator project files.\n"
-    "      \"json\" - JSON file containing target information\n"
     "\n"
     "  --filters=<path_prefixes>\n"
     "      Semicolon-separated list of label patterns used to limit the set\n"
     "      of generated projects (see \"gn help label_pattern\"). Only\n"
     "      matching targets and their dependencies will be included in the\n"
-    "      solution. Only used for Visual Studio, Xcode and JSON.\n"
+    "      solution. Only used for Visual Studio and Xcode.\n"
     "\n"
     "Visual Studio Flags\n"
     "\n"
@@ -331,27 +305,7 @@
     "  properly define includes/defines for each file individually.\n"
     "  Instead, one set of includes/defines is generated for the entire\n"
     "  project. This works fairly well but may still result in a few indexer\n"
-    "  issues here and there.\n"
-    "\n"
-    "Generic JSON Output\n"
-    "\n"
-    "  Dumps target information to JSON file and optionally invokes python\n"
-    "  script on generated file. \n"
-    "  See comments at the beginning of json_project_writer.cc and\n"
-    "  desc_builder.cc for overview of JSON file format.\n"
-    "\n"
-    "  --json-file-name=<json_file_name>\n"
-    "      Overrides default file name (project.json) of generated JSON file.\n"
-    "\n"
-    "  --json-ide-script=<path_to_python_script>\n"
-    "      Executes python script after the JSON file is generated.\n"
-    "      Path can be project absolute (//), system absolute (/) or\n"
-    "      relative, in which case the output directory will be base.\n"
-    "      Path to generated JSON file will be first argument when invoking\n"
-    "      script.\n"
-    "\n"
-    "  --json-ide-script-args=<argument>\n"
-    "      Optional second argument that will passed to executed script.\n";
+    "  issues here and there.\n";
 
 int RunGen(const std::vector<std::string>& args) {
   base::ElapsedTimer timer;