base_paths_mac.mm revision ddb351dbec246cf1fab5ec20d2d5520909041de1 
1// Copyright (c) 2006-2008 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 "base/base_paths_mac.h"
6
7#import <Foundation/Foundation.h>
8#include <mach-o/dyld.h>
9
10#include "base/compiler_specific.h"
11#include "base/file_path.h"
12#include "base/file_util.h"
13#include "base/logging.h"
14#include "base/mac/mac_util.h"
15#include "base/path_service.h"
16#include "base/string_util.h"
17
18namespace {
19
20bool GetNSExecutablePath(FilePath* path) WARN_UNUSED_RESULT;
21
22bool GetNSExecutablePath(FilePath* path) {
23  DCHECK(path);
24  // Executable path can have relative references ("..") depending on
25  // how the app was launched.
26  uint32_t executable_length = 0;
27  _NSGetExecutablePath(NULL, &executable_length);
28  DCHECK_GE(executable_length, 1u);
29  std::string executable_path;
30  char* executable_path_c = WriteInto(&executable_path, executable_length);
31  int rv = _NSGetExecutablePath(executable_path_c, &executable_length);
32  DCHECK_EQ(rv, 0);
33  DCHECK(!executable_path.empty());
34  if ((rv != 0) || (executable_path.empty()))
35    return false;
36  *path = FilePath(executable_path);
37  return true;
38}
39
40}  // namespace
41
42namespace base {
43
44bool PathProviderMac(int key, FilePath* result) {
45  switch (key) {
46    case base::FILE_EXE:
47    case base::FILE_MODULE: {
48      return GetNSExecutablePath(result);
49    }
50    case base::DIR_CACHE:
51      return base::mac::GetUserDirectory(NSCachesDirectory, result);
52    case base::DIR_APP_DATA:
53      return base::mac::GetUserDirectory(NSApplicationSupportDirectory, result);
54    case base::DIR_SOURCE_ROOT: {
55      // Go through PathService to catch overrides.
56      if (!PathService::Get(base::FILE_EXE, result))
57        return false;
58
59      // Start with the executable's directory.
60      *result = result->DirName();
61      if (base::mac::AmIBundled()) {
62        // The bundled app executables (Chromium, TestShell, etc) live five
63        // levels down, eg:
64        // src/xcodebuild/{Debug|Release}/Chromium.app/Contents/MacOS/Chromium
65        *result = result->DirName().DirName().DirName().DirName().DirName();
66      } else {
67        // Unit tests execute two levels deep from the source root, eg:
68        // src/xcodebuild/{Debug|Release}/base_unittests
69        *result = result->DirName().DirName();
70      }
71      return true;
72    }
73    default:
74      return false;
75  }
76}
77
78}  // namespace base
79