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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "pythonutils.h"
#include "pythonproject.h"
#include "pythonsettings.h"
#include "pythontr.h"
#include <coreplugin/messagemanager.h>
#include <projectexplorer/project.h>
#include <projectexplorer/session.h>
#include <projectexplorer/target.h>
#include <utils/algorithm.h>
#include <utils/mimeutils.h>
#include <utils/qtcprocess.h>
using namespace ProjectExplorer;
using namespace Utils;
namespace Python::Internal {
FilePath detectPython(const FilePath &documentPath)
{
Project *project = documentPath.isEmpty() ? nullptr
: SessionManager::projectForFile(documentPath);
if (!project)
project = SessionManager::startupProject();
Environment env = Environment::systemEnvironment();
if (project) {
if (auto target = project->activeTarget()) {
if (auto runConfig = target->activeRunConfiguration()) {
if (auto interpreter = runConfig->aspect<InterpreterAspect>())
return interpreter->currentInterpreter().command;
if (auto environmentAspect = runConfig->aspect<EnvironmentAspect>())
env = environmentAspect->environment();
}
}
}
// check whether this file is inside a python virtual environment
const QList<Interpreter> venvInterpreters = PythonSettings::detectPythonVenvs(documentPath);
if (!venvInterpreters.isEmpty())
return venvInterpreters.first().command;
auto defaultInterpreter = PythonSettings::defaultInterpreter().command;
if (defaultInterpreter.exists())
return defaultInterpreter;
auto pythonFromPath = [=](const QString toCheck) {
for (const FilePath &python : env.findAllInPath(toCheck)) {
// Windows creates empty redirector files that may interfere
if (python.exists() && python.osType() == OsTypeWindows && python.fileSize() != 0)
return python;
}
return FilePath();
};
const FilePath fromPath3 = pythonFromPath("python3");
if (fromPath3.exists())
return fromPath3;
const FilePath fromPath = pythonFromPath("python");
if (fromPath.exists())
return fromPath;
return PythonSettings::interpreters().value(0).command;
}
static QStringList replImportArgs(const FilePath &pythonFile, ReplType type)
{
using MimeTypes = QList<MimeType>;
const MimeTypes mimeTypes = pythonFile.isEmpty() || type == ReplType::Unmodified
? MimeTypes()
: mimeTypesForFileName(pythonFile.toString());
const bool isPython = Utils::anyOf(mimeTypes, [](const MimeType &mt) {
return mt.inherits("text/x-python") || mt.inherits("text/x-python3");
});
if (type == ReplType::Unmodified || !isPython)
return {};
const auto import = type == ReplType::Import
? QString("import %1").arg(pythonFile.completeBaseName())
: QString("from %1 import *").arg(pythonFile.completeBaseName());
return {"-c", QString("%1; print('Running \"%1\"')").arg(import)};
}
void openPythonRepl(QObject *parent, const FilePath &file, ReplType type)
{
static const auto workingDir = [](const FilePath &file) {
if (file.isEmpty()) {
if (Project *project = SessionManager::startupProject())
return project->projectDirectory();
return FilePath::fromString(QDir::currentPath());
}
return file.absolutePath();
};
const auto args = QStringList{"-i"} + replImportArgs(file, type);
auto process = new QtcProcess(parent);
process->setTerminalMode(TerminalMode::On);
const FilePath pythonCommand = detectPython(file);
process->setCommand({pythonCommand, args});
process->setWorkingDirectory(workingDir(file));
const QString commandLine = process->commandLine().toUserOutput();
QObject::connect(process, &QtcProcess::done, process, [process, commandLine] {
if (process->error() != QProcess::UnknownError) {
Core::MessageManager::writeDisrupting(Tr::tr(
(process->error() == QProcess::FailedToStart)
? "Failed to run Python (%1): \"%2\"."
: "Error while running Python (%1): \"%2\".")
.arg(commandLine, process->errorString()));
}
process->deleteLater();
});
process->start();
}
QString pythonName(const FilePath &pythonPath)
{
static QHash<FilePath, QString> nameForPython;
if (!pythonPath.exists())
return {};
QString name = nameForPython.value(pythonPath);
if (name.isEmpty()) {
QtcProcess pythonProcess;
pythonProcess.setTimeoutS(2);
pythonProcess.setCommand({pythonPath, {"--version"}});
pythonProcess.runBlocking();
if (pythonProcess.result() != ProcessResult::FinishedWithSuccess)
return {};
name = pythonProcess.allOutput().trimmed();
nameForPython[pythonPath] = name;
}
return name;
}
PythonProject *pythonProjectForFile(const FilePath &pythonFile)
{
for (Project *project : SessionManager::projects()) {
if (auto pythonProject = qobject_cast<PythonProject *>(project)) {
if (pythonProject->isKnownFile(pythonFile))
return pythonProject;
}
}
return nullptr;
}
} // Python::Internal
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