initial version

build-sideband-appimage.sh

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+#!/bin/bash
+set -euo pipefail
+
+# Application settings
+APP_NAME="Sideband"
+PKG_NAME="sbapp"
+PY_VER="${PY_VER:-3.11}"
+ARCH="${ARCH:-$(uname -m)}"
+export ARCH
+
+# Directory structure
+WORKDIR="${WORKDIR:-$PWD/_build_sideband_appimage}"
+APPDIR="$WORKDIR/AppDir"
+PY_DIR="$APPDIR/opt/python"
+VENV_DIR="$APPDIR/usr/venv"
+
+# Tools and URLs
+UV_BIN="${UV_BIN:-uv}"
+APPIMAGETOOL_URL="${APPIMAGETOOL_URL:-https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-${ARCH}.AppImage}"
+ICON_URL="https://raw.githubusercontent.com/markqvist/Sideband/main/sbapp/assets/icon.iconset/icon_256x256.png"
+
+# Cleanup and directory preparation
+rm -rf "$WORKDIR"
+mkdir -p "$APPDIR"
+cd "$WORKDIR"
+
+echo "[1/7] Installing CPython ${PY_VER} into AppDir..."
+"$UV_BIN" python install "$PY_VER" --install-dir "$PY_DIR"
+
+BASE_PYTHON_ABS="$(find "$PY_DIR" -type f -name "python${PY_VER}" | head -n1)"
+
+echo "[2/7] Creating venv and installing ${PKG_NAME}..."
+"$UV_BIN" venv "$VENV_DIR" --python "$BASE_PYTHON_ABS"
+"$UV_BIN" pip install "$PKG_NAME" --python "$VENV_DIR/bin/python"
+
+# Extract application version from the installed package
+APP_VERSION=$("$VENV_DIR/bin/python" -c "import importlib.metadata; print(importlib.metadata.version('$PKG_NAME'))")
+echo "Detected ${PKG_NAME} version: ${APP_VERSION}"
+
+echo "[3/7] Making venv relative for AppImage..."
+pushd "$VENV_DIR/bin" > /dev/null
+RELATIVE_PY_PATH=$(realpath --relative-to="." "$BASE_PYTHON_ABS")
+ln -sf "$RELATIVE_PY_PATH" python
+ln -sf "$RELATIVE_PY_PATH" python3
+ln -sf "$RELATIVE_PY_PATH" "python${PY_VER}"
+popd > /dev/null
+
+# pyvenv.cfg correction for path 
+INTERNAL_PY_BIN_DIR="/opt/$(realpath --relative-to="$PY_DIR/.." "$(dirname "$BASE_PYTHON_ABS")")"
+sed -i "s|^home = .*|home = $INTERNAL_PY_BIN_DIR|" "$VENV_DIR/pyvenv.cfg"
+sed -i "s|^executable = .*|executable = /usr/venv/bin/python|" "$VENV_DIR/pyvenv.cfg"
+
+echo "[4/7] Creating AppRun script..."
+cat > "$APPDIR/AppRun" <<EOF
+#!/bin/sh
+set -eu
+HERE="\$(dirname "\$(readlink -f "\$0")")"
+export PYTHONNOUSERSITE=1
+
+exec "\$HERE/usr/venv/bin/python" -c "import sbapp.main; sbapp.main.run()" "\$@"
+EOF
+chmod +x "$APPDIR/AppRun"
+
+echo "[5/7] Setting up Desktop Entry and Icons..."
+mkdir -p "$APPDIR/usr/share/applications"
+mkdir -p "$APPDIR/usr/share/icons/hicolor/256x256/apps"
+
+cat > "$APPDIR/usr/share/applications/sideband.desktop" <<EOF
+[Desktop Entry]
+Type=Application
+Name=${APP_NAME}
+Exec=${APP_NAME}
+Icon=sideband
+Categories=Network;Chat;
+Terminal=false
+EOF
+
+curl -L "$ICON_URL" -o "$APPDIR/usr/share/icons/hicolor/256x256/apps/sideband.png"
+ln -sf usr/share/applications/sideband.desktop "$APPDIR/${APP_NAME}.desktop"
+ln -sf usr/share/icons/hicolor/256x256/apps/sideband.png "$APPDIR/sideband.png"
+
+echo "[6/7] Downloading appimagetool..."
+if [ ! -f "appimagetool.AppImage" ]; then
+    curl -L "$APPIMAGETOOL_URL" -o appimagetool.AppImage
+    chmod +x appimagetool.AppImage
+fi
+
+echo "[7/7] Building AppImage..."
+export APPIMAGE_EXTRACT_AND_RUN=1
+OUTPUT_FILENAME="${APP_NAME}-${APP_VERSION}-py${PY_VER}-${ARCH}.AppImage"
+./appimagetool.AppImage "$APPDIR" "$OUTPUT_FILENAME"
+
+echo "Success: $WORKDIR/$OUTPUT_FILENAME"