Added possibility to build Windows stand-alone exe

.gitignore

@@ -26,3 +26,4 @@
 /dist/
 /.idea/
 /build/lib/exam_generator/
+/packaging/windows/build/exam_generator/

packaging/windows/build_windows_exe.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+"""
+Builds a Windows executable of exam_generator using PyInstaller
+"""
+import os
+import shutil
+from PyInstaller.__main__ import run as pyinstaller_run
+
+# Specifications for PyInstaller
+spec_file = "exam_generator.spec"
+
+# Directories where to build into
+script_dir = os.getcwd()
+build_dir = os.path.join(script_dir, "build")
+temp_dir = os.path.join(script_dir, "temp")
+
+# Build the command string
+cmd = ["--clean", f"--distpath={build_dir}", f"--workpath={temp_dir}", spec_file]
+
+# Clean-up environment
+for dir in [build_dir, temp_dir]:
+    if os.path.exists(dir):
+        shutil.rmtree(dir, ignore_errors=True)
+
+# Call pyinstaller
+print(f"Executing pyinstaller {' '.join(cmd)}")
+pyinstaller_run(cmd)
+
+# Remove temp data
+if os.path.exists(temp_dir):
+    shutil.rmtree(temp_dir, ignore_errors=True)

packaging/windows/exam_generator.spec

@@ -0,0 +1,58 @@
+# -*- mode: python ; coding: utf-8 -*-
+import sys
+import os
+import glob
+from PyInstaller.utils.hooks import get_module_file_attribute
+
+# Location of source and script files
+repo_dir = os.path.realpath('../..')
+module_dir = os.path.join(repo_dir, 'src/exam_generator')
+
+# Templates and settings of exam_generator needs to be shipped as well
+data_files = [(filename, './templates') for filename in glob.glob(os.path.join(module_dir, 'templates', '*.tex'))]
+data_files += [(os.path.join(repo_dir, 'settings'), './settings')]
+
+# It's open source, so we do not need to encrypt the python code
+block_cipher = None
+
+# Catch really every package loaded by exam_generator
+sys.setrecursionlimit(sys.getrecursionlimit() * 5)
+
+# Analyze what needs to be packaged
+a = Analysis([os.path.join(repo_dir, 'run_exam_generator.py')],
+             pathex=[repo_dir, module_dir],
+             binaries=[],
+             datas=data_files,
+             hiddenimports=[],
+             hookspath=[],
+             runtime_hooks=[],
+             excludes=[],
+             win_no_prefer_redirects=False,
+             win_private_assemblies=False,
+             cipher=block_cipher,
+             noarchive=False)
+
+# Put everything together
+pyz = PYZ(a.pure, a.zipped_data, cipher=block_cipher)
+
+# Specification for building the exe
+exe = EXE(pyz,
+          a.scripts,
+          [],
+          exclude_binaries=True,
+          name='exam_generator',
+          debug=False,
+          bootloader_ignore_signals=False,
+          strip=False,
+          upx=True,
+          console=True)
+
+# Collection of all information needed for building the exe
+coll = COLLECT(exe,
+               a.binaries,
+               a.zipfiles,
+               a.datas,
+               strip=False,
+               upx=True,
+               upx_exclude=[],
+               name='exam_generator')

run_exam_generator.py

@@ -0,0 +1,2 @@
+import exam_generator as eg
+eg.main()