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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "pythonutils.h"
#include "pythonproject.h"
#include "pythonsettings.h"
#include "pythontr.h"
#include <coreplugin/messagemanager.h>
#include <coreplugin/progressmanager/processprogress.h>
#include <projectexplorer/project.h>
#include <projectexplorer/projectmanager.h>
#include <projectexplorer/target.h>
#include <utils/algorithm.h>
#include <utils/mimeutils.h>
#include <utils/process.h>
using namespace ProjectExplorer;
using namespace Utils;
namespace Python::Internal {
static QHash<FilePath, FilePath> &userDefinedPythonsForDocument()
{
static QHash<FilePath, FilePath> userDefines;
return userDefines;
}
FilePath detectPython(const FilePath &documentPath)
{
Project *project = documentPath.isEmpty() ? nullptr
: ProjectManager::projectForFile(documentPath);
if (!project)
project = ProjectManager::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();
}
}
}
const FilePath userDefined = userDefinedPythonsForDocument().value(documentPath);
if (userDefined.exists())
return userDefined;
// 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;
}
void definePythonForDocument(const FilePath &documentPath, const FilePath &python)
{
userDefinedPythonsForDocument()[documentPath] = python;
}
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 = ProjectManager::startupProject())
return project->projectDirectory();
return FilePath::currentWorkingPath();
}
return file.absolutePath();
};
const auto args = QStringList{"-i"} + replImportArgs(file, type);
auto process = new Process(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, &Process::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()) {
Process 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 : ProjectManager::projects()) {
if (auto pythonProject = qobject_cast<PythonProject *>(project)) {
if (pythonProject->isKnownFile(pythonFile))
return pythonProject;
}
}
return nullptr;
}
void createVenv(const Utils::FilePath &python,
const Utils::FilePath &venvPath,
const std::function<void(bool)> &callback)
{
QTC_ASSERT(python.isExecutableFile(), callback(false); return);
QTC_ASSERT(!venvPath.exists() || venvPath.isDir(), callback(false); return);
const CommandLine command(python, QStringList{"-m", "venv", venvPath.toUserOutput()});
auto process = new Process;
auto progress = new Core::ProcessProgress(process);
progress->setDisplayName(Tr::tr("Create Python venv"));
QObject::connect(process, &Process::done, [process, callback](){
callback(process->result() == ProcessResult::FinishedWithSuccess);
process->deleteLater();
});
process->setCommand(command);
process->start();
}
} // Python::Internal
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