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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
import logging
import os
import sys
from importlib import util
from importlib.metadata import version
from pathlib import Path
from . import Config, run_command
class PythonExecutable:
"""
Wrapper class around Python executable
"""
def __init__(self, python_path: Path = None, dry_run: bool = False, init: bool = False,
force: bool = False):
self.dry_run = dry_run
self.init = init
if not python_path:
response = "yes"
# checking if inside virtual environment
if not self.is_venv() and not force and not self.dry_run and not self.init:
response = input(("You are not using a virtual environment. pyside6-deploy needs "
"to install a few Python packages for deployment to work "
"seamlessly. \n Proceed? [Y/n]"))
if response.lower() in ["no", "n"]:
print("[DEPLOY] Exiting ...")
sys.exit(0)
self.exe = Path(sys.executable)
else:
self.exe = python_path
logging.info(f"[DEPLOY] Using Python at {str(self.exe)}")
@property
def exe(self):
return Path(self._exe)
@exe.setter
def exe(self, exe):
self._exe = exe
@staticmethod
def is_venv():
venv = os.environ.get("VIRTUAL_ENV")
return True if venv else False
def is_pyenv_python(self):
pyenv_root = os.environ.get("PYENV_ROOT")
if pyenv_root:
resolved_exe = self.exe.resolve()
if str(resolved_exe).startswith(pyenv_root):
return True
return False
def install(self, packages: list = None):
_, installed_packages = run_command(command=[str(self.exe), "-m", "pip", "freeze"],
dry_run=False, fetch_output=True)
installed_packages = [p.decode().split('==')[0] for p in installed_packages.split()]
for package in packages:
package_info = package.split('==')
package_components_len = len(package_info)
package_name, package_version = None, None
if package_components_len == 1:
package_name = package_info[0]
elif package_components_len == 2:
package_name = package_info[0]
package_version = package_info[1]
else:
raise ValueError(f"{package} should be of the format 'package_name'=='version'")
if (package_name not in installed_packages) and (not self.is_installed(package_name)):
logging.info(f"[DEPLOY] Installing package: {package}")
run_command(
command=[self.exe, "-m", "pip", "install", package],
dry_run=self.dry_run,
)
elif package_version:
installed_version = version(package_name)
if package_version != installed_version:
logging.info(f"[DEPLOY] Installing package: {package_name}"
f"version: {package_version}")
run_command(
command=[self.exe, "-m", "pip", "install", "--force", package],
dry_run=self.dry_run,
)
else:
logging.info(f"[DEPLOY] package: {package_name}=={package_version}"
" already installed")
else:
logging.info(f"[DEPLOY] package: {package_name} already installed")
def is_installed(self, package):
return bool(util.find_spec(package))
def install_dependencies(self, config: Config, packages: str, is_android: bool = False):
"""
Installs the python package dependencies for the target deployment platform
"""
packages = config.get_value("python", packages).split(",")
if not self.init:
# install packages needed for deployment
logging.info("[DEPLOY] Installing dependencies")
self.install(packages=packages)
# nuitka requires patchelf to make patchelf rpath changes for some Qt files
if sys.platform.startswith("linux") and not is_android:
self.install(packages=["patchelf"])
elif is_android:
# install only buildozer
logging.info("[DEPLOY] Installing buildozer")
buildozer_package_with_version = ([package for package in packages
if package.startswith("buildozer")])
self.install(packages=list(buildozer_package_with_version))
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