feat: Implemented AppImage building

scripts/build-appimage.ts

@@ -0,0 +1,91 @@
+import { $ } from "bun";
+import pkg from "../package.json";
+import fs from 'node:fs/promises';
+import { appBuilderPath, } from 'app-builder-bin';
+import path from 'node:path';
+import { ensureDir } from "fs-extra";
+
+// ─────────────────────────────────────────────
+// CONFIGURE THESE FOR YOUR APP
+// ─────────────────────────────────────────────
+const APP_DIR = "./build/linux";
+const BINARY_NAME = pkg.bin;
+const ICON = "./src/mainview/assets/256x256.png";
+const DESKTOP = "./flatpak/com.simeonradivoev.gameflow-deck.desktop";
+const TMP_FOLDER = ".";
+// ─────────────────────────────────────────────
+
+const APP_NAME = pkg.displayName ?? pkg.name;
+const APP_ID = pkg.name;
+const APPDIR = path.resolve(path.join(TMP_FOLDER, `${APP_ID}.AppDir`));
+
+console.log(`>>> Building AppImage for ${APP_NAME} (${APP_ID})...`);
+
+await ensureDir(path.join(APPDIR, `usr`, 'bin'));
+await ensureDir("build");
+
+// Copy app dir
+await fs.cp(`${APP_DIR}/.`, path.join(APPDIR, `usr`, 'share'), { recursive: true });
+await fs.rename(path.join(APPDIR, `usr`, 'share', BINARY_NAME), path.join(APPDIR, `usr`, 'bin', BINARY_NAME));
+
+await fs.writeFile(path.join(APPDIR, `${APP_ID}.desktop`), `[Desktop Entry]
+Version=${pkg.version}
+X-AppImage-Name=${APP_NAME}
+X-AppImage-Version=${pkg.version}
+X-AppImage-Arch=${process.arch}
+Name=${APP_NAME}
+Comment=${pkg.description}
+Exec=${APP_ID}.AppImage
+Icon=.DirIcon
+Type=Application
+Categories=Game;
+`);
+
+await Bun.write(path.join(APPDIR, "AppRun"), `#!/bin/bash
+APPDIR="$(dirname "$(readlink -f "$0")")"
+APPIMAGE=true
+exec "$APPDIR/usr/bin/${BINARY_NAME}" "$@"
+`);
+await $`chmod +x ${APPDIR}/AppRun`;
+
+console.log(">>> Building AppImage...");
+const config = {
+    productName: pkg.displayName,
+    productFilename: pkg.name,
+    executableName: BINARY_NAME,
+    desktopEntry: DESKTOP,
+    icons: [
+        {
+            file: ICON,
+            size: 256
+        }
+    ],
+    fileAssociations: [
+
+    ]
+};
+
+const OUTPUT = path.resolve(path.join("build", `${APP_NAME}.AppImage`));
+const STAGE = path.resolve(path.join(TMP_FOLDER, `${APP_ID}.stage`));
+
+await ensureDir(STAGE);
+
+const proc = Bun.spawn([
+    appBuilderPath,
+    'appimage',
+    `--app=${APPDIR}`,
+    `--output=${OUTPUT}`,
+    `--stage=${STAGE}`,
+    `--arch=${process.arch}`,
+    `--configuration=${JSON.stringify(config)}`
+], {
+    stdout: "inherit",
+    stderr: "inherit"
+});
+
+const code = await proc.exited;
+await fs.rm(APPDIR, { recursive: true, force: true });
+await fs.rm(STAGE, { recursive: true, force: true });
+if (code !== 0) process.exit(code);
+
+console.log(`\n✅ Done!`);