build: add ubuntu appimage packaging script

Author: melihemik

scripts/build-appimage-ubuntu.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+project_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+image="${DIFFER_APPIMAGE_UBUNTU_IMAGE:-ubuntu:22.04}"
+read -r -a docker_cmd <<< "${DOCKER:-docker}"
+host_uid="$(id -u)"
+host_gid="$(id -g)"
+
+"${docker_cmd[@]}" run --rm \
+  --env APPIMAGE_EXTRACT_AND_RUN=1 \
+  --env CI=1 \
+  --env DEBIAN_FRONTEND=noninteractive \
+  --env HOST_UID="${host_uid}" \
+  --env HOST_GID="${host_gid}" \
+  --volume "${project_dir}:/work" \
+  --workdir /work \
+  "${image}" \
+  bash -lc '
+    set -euo pipefail
+
+    apt-get update
+    apt-get install -y --no-install-recommends \
+      build-essential \
+      ca-certificates \
+      curl \
+      file \
+      git \
+      libayatana-appindicator3-dev \
+      libgtk-3-dev \
+      libjavascriptcoregtk-4.1-dev \
+      librsvg2-dev \
+      libsoup-3.0-dev \
+      libssl-dev \
+      libwebkit2gtk-4.1-dev \
+      patchelf \
+      wget \
+      xdg-utils \
+      xz-utils \
+      gstreamer1.0-libav \
+      gstreamer1.0-plugins-bad \
+      gstreamer1.0-plugins-base \
+      gstreamer1.0-plugins-good \
+      gstreamer1.0-tools
+
+    curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
+    apt-get install -y --no-install-recommends nodejs
+
+    if ! getent group "${HOST_GID}" >/dev/null; then
+      groupadd --gid "${HOST_GID}" builder
+    fi
+
+    if ! getent passwd "${HOST_UID}" >/dev/null; then
+      useradd --uid "${HOST_UID}" --gid "${HOST_GID}" --create-home builder
+    fi
+
+    builder_name="$(getent passwd "${HOST_UID}" | cut -d: -f1)"
+
+    su "${builder_name}" -s /bin/bash -c "
+      set -euo pipefail
+      cd /work
+      curl https://sh.rustup.rs -sSf | sh -s -- -y --profile minimal
+      . \"\${HOME}/.cargo/env\"
+      npm ci
+      node --check src/main.js
+      cargo check --manifest-path src-tauri/Cargo.toml --locked
+      npm run tauri -- build --ci --bundles appimage
+    "
+  '