mirror of
https://github.com/klzgrad/naiveproxy.git
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136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/test/python_utils.h"
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#include <memory>
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#include "base/base_paths.h"
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#include "base/command_line.h"
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#include "base/environment.h"
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#include "base/files/file_path.h"
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#include "base/files/file_util.h"
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#include "base/lazy_instance.h"
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#include "base/logging.h"
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#include "base/path_service.h"
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#include "base/process/launch.h"
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#include "base/strings/string_util.h"
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#include "base/strings/utf_string_conversions.h"
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#if defined(OS_MACOSX)
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#include "base/mac/foundation_util.h"
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#endif
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const char kPythonPathEnv[] = "PYTHONPATH";
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const char kPythonVirtualEnv[] = "VIRTUAL_ENV";
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void ClearPythonPath() {
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std::unique_ptr<base::Environment> env(base::Environment::Create());
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env->UnSetVar(kPythonPathEnv);
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}
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void AppendToPythonPath(const base::FilePath& dir) {
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std::unique_ptr<base::Environment> env(base::Environment::Create());
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std::string old_path;
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std::string dir_path;
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#if defined(OS_WIN)
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dir_path = base::WideToUTF8(dir.value());
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#elif defined(OS_POSIX)
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dir_path = dir.value();
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#endif
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if (!env->GetVar(kPythonPathEnv, &old_path)) {
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env->SetVar(kPythonPathEnv, dir_path.c_str());
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} else if (old_path.find(dir_path) == std::string::npos) {
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std::string new_path(old_path);
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#if defined(OS_WIN)
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new_path.append(";");
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#elif defined(OS_POSIX)
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new_path.append(":");
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#endif
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new_path.append(dir_path.c_str());
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env->SetVar(kPythonPathEnv, new_path);
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}
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}
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bool GetPyProtoPath(base::FilePath* dir) {
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// Locate the Python code generated by the protocol buffers compiler.
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base::FilePath generated_code_dir;
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if (!PathService::Get(base::DIR_EXE, &generated_code_dir)) {
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LOG(ERROR) << "Can't find " << generated_code_dir.value();
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return false;
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}
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#if defined(OS_MACOSX)
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if (base::mac::AmIBundled())
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generated_code_dir = generated_code_dir.DirName().DirName().DirName();
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#endif
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// Used for GYP. TODO(jam): remove after GN conversion.
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const base::FilePath kPyProto(FILE_PATH_LITERAL("pyproto"));
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if (base::DirectoryExists(generated_code_dir.Append(kPyProto))) {
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*dir = generated_code_dir.Append(kPyProto);
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return true;
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}
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// Used for GN.
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const base::FilePath kGen(FILE_PATH_LITERAL("gen"));
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if (base::DirectoryExists(generated_code_dir.Append(kGen))) {
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*dir = generated_code_dir.Append(kGen);
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return true;
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}
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return false;
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}
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#if defined(OS_WIN)
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struct PythonExePath {
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PythonExePath() {
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// This is test-only code, so CHECK with a subprocess invocation is ok.
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base::CommandLine command(base::FilePath(FILE_PATH_LITERAL("cmd")));
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command.AppendArg("/c");
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command.AppendArg("python");
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command.AppendArg("-c");
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command.AppendArg("import sys; print sys.executable");
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std::string output;
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CHECK(GetAppOutput(command, &output));
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// This does only work if cmd.exe doesn't use a non-US codepage.
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path_ = base::ASCIIToUTF16(output);
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TrimWhitespace(path_, base::TRIM_ALL, &path_);
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}
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base::string16 path_;
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};
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static base::LazyInstance<PythonExePath>::Leaky g_python_path;
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#endif
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bool IsInPythonVirtualEnv() {
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return base::Environment::Create()->HasVar(kPythonVirtualEnv);
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}
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bool GetPythonCommand(base::CommandLine* python_cmd) {
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DCHECK(python_cmd);
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#if defined(OS_WIN)
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// Most developers have depot_tools in their path, which only has a
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// python.bat, not a python.exe. Go through cmd to find the path to
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// the python executable.
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// (Don't just return a a "cmd /c python" command line, because then tests
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// that try to kill the python process will kill the cmd process instead,
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// which can cause flakiness.)
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python_cmd->SetProgram(base::FilePath(g_python_path.Get().path_));
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#else
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python_cmd->SetProgram(base::FilePath(FILE_PATH_LITERAL("python")));
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#endif
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// Launch python in unbuffered mode, so that python output doesn't mix with
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// gtest output in buildbot log files. See http://crbug.com/147368.
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python_cmd->AppendArg("-u");
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if (!IsInPythonVirtualEnv()) {
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// Prevent using system-installed libraries. Use hermetic versioned copies.
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python_cmd->AppendArg("-S");
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}
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return true;
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}
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