add(#10) flatpak packaging

.gitignore

@@ -1,2 +1,3 @@
 /.idea
 /venv
+.flatpak-builder

flatpak/sa.sy.qocker.json

@@ -0,0 +1,72 @@
+{
+    "app-id": "sa.sy.Qocker",
+    "runtime": "org.kde.Platform",
+    "runtime-version": "5.15",
+    "sdk": "org.kde.Sdk",
+    "command": "qocker",
+    "modules": [
+        {
+            "name": "PyQt5",
+            "cleanup": [
+                "/bin/sip",
+                "/include",
+                "/lib/python3.9/site-packages/*.pyi"
+            ],
+            "config-opts": [
+                "--disable-static",
+                "--enable-x11"
+            ],
+            "buildsystem": "simple",
+            "build-commands": [
+                "python configure.py --confirm-license --no-docstrings --assume-shared --no-sip-files --no-qml-plugin --no-tools --no-qsci-api -d ${FLATPAK_DEST}/lib/python3.9/site-packages --sip=${FLATPAK_DEST}/bin/sip --sip-incdir=${FLATPAK_DEST}/include --stubsdir=${FLATPAK_DEST}/lib/python3.9/site-packages --disable=QtSensors --disable=QtWebEngine --disable=QtQuick --disable=QtQml --disable=QtWebChannel --disable=QtWebEngineCore --disable=QWebEngineWidgets --disable=QtQuickWidgets --disable=QtSql --disable=QtXmlPatterns --disable=QtMultimedia --disable=QtMultimediaWidgets --disable=QtLocation --disable=QtDesigner --disable=QtOpenGL --disable=QtBluetooth --disable=QtWebKit --disable=QtWebKitWidgets --disable=QtNfc --disable=QtPositioning",
+                "make -j $FLATPAK_BUILDER_N_JOBS",
+                "make install"
+            ],
+            "sources": [
+                {
+                    "type": "archive",
+                    "url": "https://pypi.io/packages/source/P/PyQt5/PyQt5-5.15.4.tar.gz",
+                    "sha256": "2a69597e0dd11caabe75fae133feca66387819fc9bc050f547e5551bce97e5be"
+                }
+            ],
+            "modules": [
+                {
+                    "name": "sip",
+                    "buildsystem": "simple",
+                    "build-commands": [
+                        "python configure.py --sip-module PyQt5.sip -b ${FLATPAK_DEST}/bin -d ${FLATPAK_DEST}/lib/python3.9/site-packages -e ${FLATPAK_DEST}/include -v ${FLATPAK_DEST}/share/sip --stubsdir=${FLATPAK_DEST}/lib/python3.9/site-packages",
+                        "make",
+                        "make install"
+                    ],
+                    "sources": [
+                        {
+                            "type": "archive",
+                            "url": "https://www.riverbankcomputing.com/static/Downloads/sip/4.19.25/sip-4.19.25.tar.gz",
+                            "sha256": "b39d93e937647807bac23579edbff25fe46d16213f708370072574ab1f1b4211"
+                        }
+                    ]
+                }
+            ]
+        },
+        {
+            "name": "qocker",
+            "buildsystem": "simple",
+            "build-commands": [
+                "install -Dm755 main.py /app/bin/qocker"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/xlmnxp/qocker.git",
+                    "tag": "v0.2"
+                }
+            ]
+        }
+    ],
+    "finish-args": [
+        "--share=network",
+        "--socket=x11",
+        "--socket=pulseaudio",
+        "--env=QT_QPA_PLATFORM=xcb"
+    ]
+}

main.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import sys
 from PyQt5.QtWidgets import (QApplication, QMainWindow, QTabWidget, QTreeWidget, QTreeWidgetItem,
                              QVBoxLayout, QHBoxLayout, QWidget, QToolBar, QAction, QMenu,