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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 #include <iostream> |
| 6 #include <sstream> |
| 7 |
| 8 #include "base/file_util.h" |
| 9 #include "base/strings/string_split.h" |
| 10 #include "base/strings/string_util.h" |
| 11 #include "tools/gn/err.h" |
| 12 #include "tools/gn/filesystem_utils.h" |
| 13 #include "tools/gn/functions.h" |
| 14 #include "tools/gn/input_file.h" |
| 15 #include "tools/gn/parse_tree.h" |
| 16 #include "tools/gn/scheduler.h" |
| 17 |
| 18 /* |
| 19 write_file: Read a file into a variable. |
| 20 |
| 21 write_file(filename, data) |
| 22 |
| 23 If data is a list, the list will be written one-item-per-line with no |
| 24 quoting or brackets. |
| 25 |
| 26 TODO(brettw) we probably need an optional third argument to control list |
| 27 formatting. |
| 28 |
| 29 Arguments: |
| 30 |
| 31 filename: |
| 32 Filename to write. This must be within the output directory. |
| 33 |
| 34 data: |
| 35 The list or string to write. |
| 36 */ |
| 37 Value ExecuteWriteFile(Scope* scope, |
| 38 const FunctionCallNode* function, |
| 39 const std::vector<Value>& args, |
| 40 Err* err) { |
| 41 if (args.size() != 2) { |
| 42 *err = Err(function->function(), "Wrong number of args to write_file", |
| 43 "I expected two arguments."); |
| 44 return Value(); |
| 45 } |
| 46 |
| 47 // Compute the file name and make sure it's in the output dir. |
| 48 if (!args[0].VerifyTypeIs(Value::STRING, err)) |
| 49 return Value(); |
| 50 const SourceDir& cur_dir = SourceDirForFunctionCall(function); |
| 51 SourceFile source_file = cur_dir.ResolveRelativeFile(args[0].string_value()); |
| 52 if (!EnsureStringIsInOutputDir( |
| 53 scope->settings()->build_settings()->build_dir(), |
| 54 source_file.value(), args[0], err)) |
| 55 return Value(); |
| 56 |
| 57 // Compute output. |
| 58 std::ostringstream contents; |
| 59 if (args[1].type() == Value::LIST) { |
| 60 const std::vector<Value>& list = args[1].list_value(); |
| 61 for (size_t i = 0; i < list.size(); i++) |
| 62 contents << list[i].ToString() << std::endl; |
| 63 } else { |
| 64 contents << args[1].ToString(); |
| 65 } |
| 66 |
| 67 // Write file, creating the directory if necessary. |
| 68 base::FilePath file_path = |
| 69 scope->settings()->build_settings()->GetFullPath(source_file); |
| 70 const std::string& contents_string = contents.str(); |
| 71 if (!file_util::CreateDirectory(file_path.DirName())) { |
| 72 *err = Err(function->function(), "Unable to create directory.", |
| 73 "I was using \"" + FilePathToUTF8(file_path.DirName()) + "\"."); |
| 74 return Value(); |
| 75 } |
| 76 if (file_util::WriteFile(file_path, |
| 77 contents_string.c_str(), contents_string.size()) |
| 78 != static_cast<int>(contents_string.size())) { |
| 79 *err = Err(function->function(), "Unable to write file.", |
| 80 "I was writing \"" + FilePathToUTF8(file_path) + "\"."); |
| 81 return Value(); |
| 82 } |
| 83 return Value(); |
| 84 } |
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