| // 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 <iostream> |
| #include <sstream> |
| |
| #include "base/file_util.h" |
| #include "base/strings/string_split.h" |
| #include "base/strings/string_util.h" |
| #include "tools/gn/err.h" |
| #include "tools/gn/filesystem_utils.h" |
| #include "tools/gn/functions.h" |
| #include "tools/gn/input_file.h" |
| #include "tools/gn/parse_tree.h" |
| #include "tools/gn/scheduler.h" |
| |
| /* |
| write_file: Read a file into a variable. |
| |
| write_file(filename, data) |
| |
| If data is a list, the list will be written one-item-per-line with no |
| quoting or brackets. |
| |
| TODO(brettw) we probably need an optional third argument to control list |
| formatting. |
| |
| Arguments: |
| |
| filename: |
| Filename to write. This must be within the output directory. |
| |
| data: |
| The list or string to write. |
| */ |
| Value ExecuteWriteFile(Scope* scope, |
| const FunctionCallNode* function, |
| const std::vector<Value>& args, |
| Err* err) { |
| if (args.size() != 2) { |
| *err = Err(function->function(), "Wrong number of args to write_file", |
| "I expected two arguments."); |
| return Value(); |
| } |
| |
| // Compute the file name and make sure it's in the output dir. |
| if (!args[0].VerifyTypeIs(Value::STRING, err)) |
| return Value(); |
| const SourceDir& cur_dir = SourceDirForFunctionCall(function); |
| SourceFile source_file = cur_dir.ResolveRelativeFile(args[0].string_value()); |
| if (!EnsureStringIsInOutputDir( |
| scope->settings()->build_settings()->build_dir(), |
| source_file.value(), args[0], err)) |
| return Value(); |
| |
| // Compute output. |
| std::ostringstream contents; |
| if (args[1].type() == Value::LIST) { |
| const std::vector<Value>& list = args[1].list_value(); |
| for (size_t i = 0; i < list.size(); i++) |
| contents << list[i].ToString() << std::endl; |
| } else { |
| contents << args[1].ToString(); |
| } |
| |
| // Write file, creating the directory if necessary. |
| base::FilePath file_path = |
| scope->settings()->build_settings()->GetFullPath(source_file); |
| const std::string& contents_string = contents.str(); |
| if (!file_util::CreateDirectory(file_path.DirName())) { |
| *err = Err(function->function(), "Unable to create directory.", |
| "I was using \"" + FilePathToUTF8(file_path.DirName()) + "\"."); |
| return Value(); |
| } |
| if (file_util::WriteFile(file_path, |
| contents_string.c_str(), contents_string.size()) |
| != static_cast<int>(contents_string.size())) { |
| *err = Err(function->function(), "Unable to write file.", |
| "I was writing \"" + FilePathToUTF8(file_path) + "\"."); |
| return Value(); |
| } |
| return Value(); |
| } |