Use default_options to set version independent Python dir

Remove `allow-site-packages-dir` build option.

To use the site-packages dir you will need to patch meson.build.

.github/workflows/ci.yaml

@@ -44,6 +44,6 @@ jobs:
         uses: actions/checkout@v4
       - name: Run meson
         run: |
-          arch-meson -Dman=true -Dallow-site-packages-dir=true build
+          arch-meson -Dman=true build
           meson compile --verbose -C build
           meson install -C build --destdir install

README.md

@@ -75,7 +75,7 @@ If your distro does not have a package you can try to manually install with meso
 
 #### Using meson to install
 
-1. Run `meson setup build -Dpython.purelibdir=lib/bubblejail/python-packages` to setup build directory
+1. Run `meson setup build` to setup build directory
 1. Switch to build directory `cd build`
 1. Compile `meson compile`
 1. Install `sudo meson install`

meson.build

@@ -1,7 +1,12 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 # SPDX-FileCopyrightText: 2020 igo95862
 project('bubblejail',
-    version : '0.8.3'
+    version : '0.8.3',
+    # Patch out these lines to install bubblejail's packages to site-packages
+    default_options : {
+        'python.purelibdir' : 'lib/bubblejail/python-packages',
+        'python.platlibdir' : 'lib/bubblejail/python-packages',
+    },
 )
 
 fs = import('fs')
@@ -10,9 +15,6 @@ py_installation = pymod.find_installation('python3')
 python_purelib_option = get_option('python.purelibdir')
 
 if python_purelib_option == py_installation.get_path('purelib') or python_purelib_option == ''
-    if not get_option('allow-site-packages-dir')
-        error('Please configure meson with -Dpython.purelibdir=lib/bubblejail/python-packages -Dpython.platlibdir=lib/bubblejail/python-packages options.')
-    endif
     extra_python_packages_dir = ''
 else
     extra_python_packages_dir = get_option('prefix') / python_purelib_option

meson_options.txt

@@ -2,5 +2,4 @@
 # SPDX-FileCopyrightText: 2022 igo95862
 option('version_display', type: 'string', value: '', description: 'Custom --version display.')
 option('man', type : 'boolean', value : true, description : 'Generate and install man pages for CLI tool and services.')
-option('allow-site-packages-dir', type : 'boolean', value : false, description : 'Allow using Python\'s site-packages directory for Python modules instead of version independent location.')
 option('use-vendored-python-lxns', type : 'feature', value : 'disabled', description : 'Use meson subproject for python-lxns library.')