Use pyrun for missing Python 3.11

Download and setup missing Python versions using eGenix PyRun from:
https://github.com/eGenix/egenix-pyrun/

dev-cli.py

@@ -20,20 +20,25 @@ def print_no_pip_error():
     print('Hint: "apt-get install python3-venv"\n')
 
 
+assert sys.version_info >= (3, 11), f'Python version {sys.version_info} is too old!'
+
+
 try:
+    import pip  # noqa
+except ModuleNotFoundError:
+    try:
         from ensurepip import version
-except ModuleNotFoundError as err:
+    except ModuleNotFoundError as err:
         print(err)
         print('-' * 100)
         print_no_pip_error()
         raise
-else:
+    else:
         if not version():
             print_no_pip_error()
             sys.exit(-1)
-
-
-assert sys.version_info >= (3, 11), f'Python version {sys.version_info} is too old!'
+else:
+    print(f'pip version: {pip.__version__}')
 
 
 if sys.platform == 'win32':  # wtf

manifest.toml

@@ -100,7 +100,7 @@ ram.runtime = "50M" # **estimate** minimum ram requirement. e.g. 50M, 400M, 1G,
     [resources.apt]
     # https://yunohost.org/en/packaging_apps_resources#apt
     # This will automatically install/uninstall the following apt packages
-    packages = "build-essential, python3-dev, python3-pip, python3-venv, git, libpq-dev, postgresql, postgresql-contrib, redis-server, checkinstall, libssl-dev, openssl"
+    packages = "python3, git, libpq-dev, postgresql, postgresql-contrib, redis-server, libssl-dev, openssl"
 
     [resources.database]
     # https://yunohost.org/en/packaging_apps_resources#database

scripts/_common.sh

@@ -38,107 +38,18 @@ log_file="${log_path}/${app}.log"
 # HELPERS
 #=================================================
 
-
-#==================================================================================
-# myynh_install_python() Borrowed from:
-# https://github.com/YunoHost-Apps/homeassistant_ynh/blob/master/scripts/_common.sh
-# Until we get a newer Python in YunoHost, see:
-# https://forum.yunohost.org/t/use-newer-python-than-3-9/22568
-#==================================================================================
-py_required_major=3.11
-py_required_version=$(curl -Ls https://www.python.org/ftp/python/ \
-						| grep '>'$py_required_major  | cut -d '/' -f 2 \
-						| cut -d '>' -f 2 | sort -rV | head -n 1) #3.11.8
-
-myynh_install_python() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=u
-	local -A args_array=( [p]=python= )
-	local python
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
-
-	# Check python version from APT
-	local py_apt_version=$(python3 --version | cut -d ' ' -f 2)
-
-	# Usefull variables
-	local python_major=${python%.*}
-
-	# Check existing built version of python in /usr/local/bin
-	if [ -e "/usr/local/bin/python$python_major" ]
-	then
-		local py_built_version=$(/usr/local/bin/python$python_major --version \
-			| cut -d ' ' -f 2)
-	else
-		local py_built_version=0
-	fi
-
-	# Compare version
-	if $(dpkg --compare-versions $py_apt_version ge $python)
-	then
-		# APT >= Required
-		ynh_print_info --message="Using provided python3..."
-
-		py_app_version="python3"
-
-	else
-		# Either python already built or to build
-		if $(dpkg --compare-versions $py_built_version ge $python)
-		then
-			# Built >= Required
-			ynh_print_info --message="Using already used python3 built version..."
-
-			py_app_version="/usr/local/bin/python${py_built_version%.*}"
-
-		else
-			# APT < Minimal & Actual < Minimal => Build & install Python into /usr/local/bin
-			ynh_print_info --message="Building python (may take a while)..."
-
-			# Store current direcotry
-			local MY_DIR=$(pwd)
-
-			# Create a temp direcotry
-			tmpdir="$(mktemp --directory)"
-			cd "$tmpdir"
-
-			# Download
-			wget --output-document="Python-$python.tar.xz" \
-				"https://www.python.org/ftp/python/$python/Python-$python.tar.xz" 2>&1
-
-			# Extract
-			tar xf "Python-$python.tar.xz"
-
-			# Install
-			cd "Python-$python"
-			./configure --enable-optimizations
-			ynh_exec_warn_less make -j4
-			ynh_exec_warn_less make altinstall
-
-			# Go back to working directory
-			cd "$MY_DIR"
-
-			# Clean
-			ynh_secure_remove "$tmpdir"
-
-			# Set version
-			py_app_version="/usr/local/bin/python$python_major"
-		fi
-	fi
-	# Save python version in settings
-	ynh_app_setting_set --app=$app --key=python --value="$python"
-}
-#==================================================================================
-#==================================================================================
-
 myynh_setup_python_venv() {
     # Always recreate everything fresh with current python version
     ynh_secure_remove "$data_dir/venv"
 
-    myynh_install_python --python="$py_required_version"
+    # Install PyRun: https://github.com/eGenix/egenix-pyrun/
+    python3 setup-pyrun.py --version 3.11 --destination $data_dir
 
-    # Create a virtualenv with python installed by myynh_install_python():
-    # Skip pip because of: https://github.com/YunoHost/issues/issues/1960
-    $py_app_version -m venv --without-pip "$data_dir/venv"
+    # Now PyRun should be installed:
+    "$data_dir/pyrun3.11/bin/python3.11" -V
+
+    # Create a Python Virtualenv
+    "$data_dir/pyrun3.11/bin/python3.11" -m virtualenv "$data_dir/venv"
 
     chown -c -R "$app:" "$data_dir"
 

scripts/setup-pyrun.py

@@ -0,0 +1,151 @@
+#!/usr/bin/env python3
+
+"""
+    Download and setup missing Python versions using eGenix PyRun from:
+
+        https://github.com/eGenix/egenix-pyrun/
+"""
+
+import dataclasses
+import json
+import shutil
+import subprocess
+import sys
+import tarfile
+import urllib.request
+from argparse import ArgumentParser
+from pathlib import Path
+from pprint import pprint
+
+from urllib3.util import parse_url
+
+
+DEFAULT_VERSION = '3.11'
+
+
+GET_PIP_URL = 'https://bootstrap.pypa.io/get-pip.py'  # https://github.com/eGenix/egenix-pyrun/issues/11
+
+
+@dataclasses.dataclass
+class ReleaseInfo:
+    version: str
+    urls: list[str]
+
+    def get(self, *, version):
+        for url in self.urls:
+            if f'-py{version}_' in url:
+                return url
+
+
+def get_pyrun_release_info() -> ReleaseInfo:
+    api_url = "https://api.github.com/repos/eGenix/egenix-pyrun/releases"
+    with urllib.request.urlopen(api_url) as response:
+        data = response.read().decode()
+        releases = json.loads(data)
+
+    latest_release = releases[0]
+    # pprint(latest_release)
+
+    print(latest_release['html_url'])
+    print(latest_release['tag_name'])
+    print(latest_release['name'])
+
+    urls = []
+    for asset in latest_release['assets']:
+        urls.append(asset['browser_download_url'])
+
+    return ReleaseInfo(version=latest_release['name'], urls=urls)
+
+
+def setup_pyrun(*, pyrun_version: str, destination: str):
+    print('_' * 100)
+    dest_path = Path(destination).expanduser()
+    dest_path.mkdir(parents=True, exist_ok=True)
+    print(f'Setup pyrun for Python {pyrun_version} to: {dest_path}')
+
+    release_info = get_pyrun_release_info()
+    pprint(release_info)
+
+    python_bin_name = f'python{pyrun_version}'
+    path = shutil.which(python_bin_name)
+    if path:
+        path = Path(path).resolve()
+        print(f'Found {python_bin_name} at {path}')
+        print(path.name)
+        if path.name.startswith('pyrun'):
+            print(f'{python_bin_name} is pyrun -> update')
+        else:
+            sys.exit(0)
+
+    url = release_info.get(version=pyrun_version)
+    if not url:
+        print(f'No PyRun release found for Python {pyrun_version}')
+        sys.exit(1)
+
+    print(f'Download {url}')
+
+    subprocess.check_call(
+        ['wget', '--timestamp', url],
+        cwd=dest_path,
+    )
+
+    filename = Path(parse_url(url).path).name
+    print(f'{filename=}')
+    tgz_path = dest_path / filename
+    assert tgz_path.is_file(), f'{tgz_path=}'
+
+    final_path = dest_path / f'pyrun{pyrun_version}/'
+    print(f'Extract {tgz_path} to {final_path}...')
+    final_path.mkdir(parents=False, exist_ok=True)
+    with tarfile.open(tgz_path, "r:gz") as tgz_file:
+        for member in tgz_file.getmembers():
+            if ".." in member.name or member.name.startswith("/"):
+                raise ValueError(f"Unsafe file path detected: {member.name}")
+        tgz_file.extractall(path=final_path)
+
+    tgz_path.unlink()
+
+    pyrun_bin = final_path / 'bin' / f'pyrun{pyrun_version}'
+
+    print(f'Install pip/virtualenv for Python {pyrun_version}')
+    # FIXME: # https://github.com/eGenix/egenix-pyrun/issues/11
+    subprocess.check_call(
+        ['wget', '--timestamp', GET_PIP_URL],
+        cwd=dest_path,
+    )
+    get_pip_path = dest_path / 'get-pip.py'
+
+    subprocess.check_call(
+        [pyrun_bin, get_pip_path],
+    )
+    get_pip_path.unlink()
+    subprocess.check_call(
+        [pyrun_bin, '-m', 'pip', 'install', '-U', 'virtualenv'],
+    )
+    print('\n')
+
+    print(f'Check {pyrun_bin}:')
+    subprocess.check_call([pyrun_bin, '-V'])
+
+    print('\n')
+
+
+if __name__ == '__main__':
+    parser = ArgumentParser(description='Setup PyRun for a specific Python version.')
+    parser.add_argument(
+        '--version',
+        type=str,
+        default=DEFAULT_VERSION,
+        help=f'Python version to setup with PyRun (default: {DEFAULT_VERSION}),',
+    )
+    parser.add_argument(
+        '--destination',
+        type=str,
+        help=f'Destination path to store PyRun (e.g.: ~/.local/)',
+    )
+    args = parser.parse_args()
+
+    setup_pyrun(
+        pyrun_version=args.version,
+        destination=args.destination,
+    )