1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
// Copyright (c) 2011 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 "net/test/python_utils.h"
#include "base/base_paths.h"
#include "base/environment.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/path_service.h"
#include "base/utf_string_conversions.h"
const char kPythonPathEnv[] = "PYTHONPATH";
void AppendToPythonPath(const FilePath& dir) {
scoped_ptr<base::Environment> env(base::Environment::Create());
std::string old_path;
std::string dir_path;
#if defined(OS_WIN)
dir_path = WideToUTF8(dir.value());
#elif defined(OS_POSIX)
dir_path = dir.value();
#endif
if (!env->GetVar(kPythonPathEnv, &old_path)) {
env->SetVar(kPythonPathEnv, dir_path.c_str());
} else if (old_path.find(dir_path) == std::string::npos) {
std::string new_path(old_path);
#if defined(OS_WIN)
new_path.append(";");
#elif defined(OS_POSIX)
new_path.append(":");
#endif
new_path.append(dir_path.c_str());
env->SetVar(kPythonPathEnv, new_path);
}
}
namespace {
// Search for |to_try|, rolling up the directory tree from
// |start_dir|. If found, return true and put the path to |to_try| in
// |out_dir|. If not, return false and leave |out_dir| untouched.
bool TryRelativeToDir(const FilePath& start_dir,
const FilePath& to_try,
FilePath* out_dir) {
FilePath dir(start_dir);
while (!file_util::DirectoryExists(dir.Append(to_try))) {
FilePath parent = dir.DirName();
if (parent == dir) {
// We hit the root directory.
return false;
}
dir = parent;
}
*out_dir = dir;
return true;
}
} // namespace
bool GetPyProtoPath(FilePath* dir) {
// Locate the Python code generated by the protocol buffers compiler.
FilePath generated_code_dir;
if (!PathService::Get(base::DIR_EXE, &generated_code_dir)) {
LOG(ERROR) << "Can't find " << generated_code_dir.value();
return false;
}
const FilePath kPyProto(FILE_PATH_LITERAL("pyproto"));
#if defined(OS_MACOSX) || defined(OS_CHROMEOS)
FilePath source_dir;
if (!PathService::Get(base::DIR_SOURCE_ROOT, &source_dir)) {
LOG(ERROR) << "Can't find " << source_dir.value();
return false;
}
// On Mac, and possibly Chrome OS, DIR_EXE might be pointing deep
// into the Release/ (or Debug/) directory and we can't depend on
// how far down it goes. So we walk upwards from DIR_EXE until we
// find a likely looking spot.
if (!TryRelativeToDir(generated_code_dir, kPyProto, dir)) {
LOG(WARNING) << "Can't find " << kPyProto.value()
<< " next to " << generated_code_dir.value();
// On Chrome OS, we may have installed the test binaries and support tools
// in a wholly separate location, relative to DIR_SOURCE_ROOT. We'll want
// to do a similar investigation from that point as well.
generated_code_dir = source_dir
.Append(FILE_PATH_LITERAL("out"))
.Append(FILE_PATH_LITERAL("Release"));
if (!TryRelativeToDir(generated_code_dir, kPyProto, dir)) {
LOG(WARNING) << "Can't find " << kPyProto.value()
<< " next to " << generated_code_dir.value();
return false;
}
}
generated_code_dir = *dir;
#endif
*dir = generated_code_dir.Append(kPyProto);
VLOG(2) << "Found " << kPyProto.value() << " in " << dir->value();
return true;
}
bool GetPythonRunTime(FilePath* dir) {
#if defined(OS_WIN)
if (!PathService::Get(base::DIR_SOURCE_ROOT, dir))
return false;
*dir = dir->Append(FILE_PATH_LITERAL("third_party"))
.Append(FILE_PATH_LITERAL("python_26"))
.Append(FILE_PATH_LITERAL("python.exe"));
#elif defined(OS_POSIX)
*dir = FilePath("python");
#endif
return true;
}
|
