tools/gn/ninja_copy_target_writer.cc

   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 #include "tools/gn/ninja_copy_target_writer.h"
   6
   7 #include "base/strings/string_util.h"
   8 #include "tools/gn/file_template.h"
   9 #include "tools/gn/string_utils.h"
  10
  11 NinjaCopyTargetWriter::NinjaCopyTargetWriter(const Target* target,
  12                                              const Toolchain* toolchain,
  13                                              std::ostream& out)
  14     : NinjaTargetWriter(target, toolchain, out) {
  15 }
  16
  17 NinjaCopyTargetWriter::~NinjaCopyTargetWriter() {
  18 }
  19
  20 void NinjaCopyTargetWriter::Run() {
  21   CHECK(target_->script_values().outputs().size() == 1);
  22   FileTemplate output_template(GetOutputTemplate());
  23
  24   std::vector<OutputFile> output_files;
  25
  26   std::string rule_prefix = helper_.GetRulePrefix(target_->settings());
  27
  28   for (size_t i = 0; i < target_->sources().size(); i++) {
  29     const SourceFile& input_file = target_->sources()[i];
  30
  31     // Make the output file from the template.
  32     std::vector<std::string> template_result;
  33     output_template.ApplyString(input_file.value(), &template_result);
  34     CHECK(template_result.size() == 1);
  35     OutputFile output_file(template_result[0]);
  36
  37     output_files.push_back(output_file);
  38
  39     out_ << "build ";
  40     path_output_.WriteFile(out_, output_file);
  41     out_ << ": " << rule_prefix << "copy ";
  42     path_output_.WriteFile(out_, input_file);
  43     out_ << std::endl;
  44   }
  45
  46   // Write out the rule for the target to copy all of them.
  47   out_ << std::endl << "build ";
  48   path_output_.WriteFile(out_, helper_.GetTargetOutputFile(target_));
  49   out_ << ": " << rule_prefix << "stamp";
  50   for (size_t i = 0; i < output_files.size(); i++) {
  51     out_ << " ";
  52     path_output_.WriteFile(out_, output_files[i]);
  53   }
  54   out_ << std::endl;
  55 }