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// 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 <memory>
#include "base/base_paths.h"
#include "base/command_line.h"
#include "base/environment.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/process/launch.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#if defined(OS_MACOSX)
#include "base/mac/foundation_util.h"
#endif
const char kPythonPathEnv[] = "PYTHONPATH";
const char kVPythonClearPathEnv[] = "VPYTHON_CLEAR_PYTHONPATH";
void ClearPythonPath() {
std::unique_ptr<base::Environment> env(base::Environment::Create());
env->UnSetVar(kPythonPathEnv);
// vpython has instructions on BuildBot (not swarming or LUCI) to clear
// PYTHONPATH on invocation. Since we are clearing and manipulating it
// ourselves, we don't want vpython to throw out our hard work.
env->UnSetVar(kVPythonClearPathEnv);
}
void AppendToPythonPath(const base::FilePath& dir) {
std::unique_ptr<base::Environment> env(base::Environment::Create());
std::string old_path;
std::string dir_path;
#if defined(OS_WIN)
dir_path = base::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);
}
}
bool GetPyProtoPath(base::FilePath* dir) {
// Locate the Python code generated by the protocol buffers compiler.
base::FilePath generated_code_dir;
if (!PathService::Get(base::DIR_EXE, &generated_code_dir)) {
LOG(ERROR) << "Can't find " << generated_code_dir.value();
return false;
}
#if defined(OS_MACOSX)
if (base::mac::AmIBundled())
generated_code_dir = generated_code_dir.DirName().DirName().DirName();
#endif
// Used for GYP. TODO(jam): remove after GN conversion.
const base::FilePath kPyProto(FILE_PATH_LITERAL("pyproto"));
if (base::DirectoryExists(generated_code_dir.Append(kPyProto))) {
*dir = generated_code_dir.Append(kPyProto);
return true;
}
// Used for GN.
const base::FilePath kGen(FILE_PATH_LITERAL("gen"));
if (base::DirectoryExists(generated_code_dir.Append(kGen))) {
*dir = generated_code_dir.Append(kGen);
return true;
}
return false;
}
bool GetPythonCommand(base::CommandLine* python_cmd) {
DCHECK(python_cmd);
// Use vpython to pick up src.git's vpython VirtualEnv spec.
#if defined(OS_WIN)
python_cmd->SetProgram(base::FilePath(FILE_PATH_LITERAL("vpython.bat")));
#else
python_cmd->SetProgram(base::FilePath(FILE_PATH_LITERAL("vpython")));
#endif
// Launch python in unbuffered mode, so that python output doesn't mix with
// gtest output in buildbot log files. See http://crbug.com/147368.
python_cmd->AppendArg("-u");
return true;
}
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