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      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef TOOLS_GN_SETUP_H_
      6 #define TOOLS_GN_SETUP_H_
      7 
      8 #include <vector>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/files/file_path.h"
     12 #include "base/memory/scoped_ptr.h"
     13 #include "tools/gn/build_settings.h"
     14 #include "tools/gn/scheduler.h"
     15 #include "tools/gn/scope.h"
     16 #include "tools/gn/settings.h"
     17 #include "tools/gn/token.h"
     18 #include "tools/gn/toolchain.h"
     19 
     20 class CommandLine;
     21 class InputFile;
     22 class ParseNode;
     23 
     24 extern const char kDotfile_Help[];
     25 
     26 // Helper class to setup the build settings and environment for the various
     27 // commands to run.
     28 class Setup {
     29  public:
     30   Setup();
     31   ~Setup();
     32 
     33   // Configures the build for the current command line. On success returns
     34   // true. On failure, prints the error and returns false.
     35   bool DoSetup();
     36 
     37   // Runs the load, returning true on success. On failure, prints the error
     38   // and returns false.
     39   bool Run();
     40 
     41   BuildSettings& build_settings() { return build_settings_; }
     42   Scheduler& scheduler() { return scheduler_; }
     43 
     44  private:
     45   // Fills the root directory into the settings. Returns true on success.
     46   bool FillSourceDir(const CommandLine& cmdline);
     47 
     48   // Run config file.
     49   bool RunConfigFile();
     50 
     51   bool FillOtherConfig(const CommandLine& cmdline);
     52 
     53   BuildSettings build_settings_;
     54   Scheduler scheduler_;
     55 
     56   // State for invoking the dotfile.
     57   // TODO(brettw) this seems a bit excessive, maybe we can get this down
     58   // somehow?
     59   base::FilePath dotfile_name_;
     60   scoped_ptr<InputFile> dotfile_input_file_;
     61   std::vector<Token> dotfile_tokens_;
     62   scoped_ptr<ParseNode> dotfile_root_;
     63   BuildSettings dotfile_build_settings_;
     64   Toolchain dotfile_toolchain_;
     65   Settings dotfile_settings_;
     66   Scope dotfile_scope_;
     67 
     68   DISALLOW_COPY_AND_ASSIGN(Setup);
     69 };
     70 
     71 #endif  // TOOLS_GN_SETUP_H_
     72