Add AppImage builder workflow (#3)

.dockerignore

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+.git
+.github
+Dockerfile

.github/workflows/release.yml

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+name: Build and publish AppImages
+
+env:
+  UBUNTU_RELEASE: jammy
+  UBUNTU_PUBKEY: 871920D1991BC93C
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm64
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-qemu-action@v2
+        if: matrix.platform != 'linux/amd64'
+      - uses: docker/setup-buildx-action@v2
+      - uses: docker/build-push-action@v4
+        with:
+          platforms: ${{ matrix.platform }}
+          outputs: build
+          build-args: |
+            UBUNTU_RELEASE
+      - uses: rlespinasse/github-slug-action@v4
+      - name: Prepare AppImage build
+        env:
+          TARGET_PLATFORM: ${{ matrix.platform }}
+        shell: bash
+        run: |
+          set -eu
+          find build -mindepth 1 -maxdepth 1 -type d | while read -r path; do
+            set -a
+            APPIMAGE_PATH="${path}"
+            APPIMAGE_VERSION="${GITHUB_REF_SLUG}"
+            APPIMAGE_APT_ARCH="${TARGET_PLATFORM#*/}"
+            APPIMAGE_APT_DISTRO="${UBUNTU_RELEASE}"
+            APPIMAGE_APT_PUBKEY="${UBUNTU_PUBKEY}"
+            APPIMAGE_ARCH="$(basename "${path}")"
+            printenv | grep ^APPIMAGE_ >>"${GITHUB_ENV}"
+          done
+      - uses: AppImageCrafters/build-appimage@v1
+        with:
+          recipe: dist/AppImageBuilder.yml
+      - uses: actions/upload-artifact@v3
+        with:
+          name: appimages
+          path: ./*.AppImage*
+          if-no-files-found: error
+
+  release:
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    needs:
+      - build
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: appimages
+          path: assets
+      - name: Create checksum for release assets
+        shell: bash
+        run: |
+          algo="${SHA_ALGORITHM:-256}"
+          find assets -type f | while read -r asset; do
+            shasum --binary --algorithm "${algo}" "${asset}" >"${asset}.sha${algo}"
+          done
+      - uses: softprops/action-gh-release@v1
+        with:
+          files: assets/*

Dockerfile

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+ARG UBUNTU_RELEASE=jammy
+
+FROM ubuntu:$UBUNTU_RELEASE AS build-stage
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+      git ca-certificates build-essential libudev-dev libevdev-dev zlib1g-dev valac libgee-0.8-dev meson
+COPY . /
+ARG BUILD_TYPE=release
+ARG ENABLE_LTO=true
+RUN meson setup \
+      "--fatal-meson-warnings" \
+      "--buildtype=${BUILD_TYPE}" \
+      "-Db_lto=${ENABLE_LTO}" \
+      "--prefix=/usr" \
+      /build && \
+    meson compile -C /build && \
+    meson install "--destdir=/release/$(uname -m)" -C /build
+
+FROM scratch AS export-stage
+COPY --from=build-stage /release/ /

dist/AppImageBuilder.yml

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+version: 1
+
+script:
+- |
+  icon_path="{{APPIMAGE_PATH}}/usr/share/icons/hicolor/128x128/apps"
+  mkdir -p "${icon_path}"
+  cp -a dist/evdevhook2.png "${icon_path}"
+
+AppDir:
+  path: "{{APPIMAGE_PATH}}"
+
+  app_info:
+    id: org.v1993.evdevhook2
+    name: evdevhook2
+    version: "{{APPIMAGE_VERSION}}"
+    icon: evdevhook2
+    exec: usr/bin/evdevhook2
+    exec_args: $@
+
+  apt:
+    arch:
+      - "{{APPIMAGE_APT_ARCH}}"
+    sources:
+      - sourceline: deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ "{{APPIMAGE_APT_DISTRO}}" main
+        key_url: "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x{{APPIMAGE_APT_PUBKEY}}"
+      - sourceline: deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ "{{APPIMAGE_APT_DISTRO}}"-updates main
+      - sourceline: deb [arch=amd64] http://security.ubuntu.com/ubuntu/ "{{APPIMAGE_APT_DISTRO}}"-security main
+      - sourceline: deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports/ "{{APPIMAGE_APT_DISTRO}}" main
+      - sourceline: deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports/ "{{APPIMAGE_APT_DISTRO}}"-updates main
+      - sourceline: deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports/ "{{APPIMAGE_APT_DISTRO}}"-security main
+    include:
+      - libudev1
+      - libevdev2
+      - libglib2.0-0
+      - libgee-0.8-2
+
+  files:
+    exclude:
+      - usr/share/man
+      - usr/share/doc/*/README.*
+      - usr/share/doc/*/changelog.*
+      - usr/share/doc/*/NEWS.*
+      - usr/share/doc/*/TODO.*
+      - usr/share/lintian
+      - usr/lib/*/glib-2.0
+
+AppImage:
+  arch: "{{APPIMAGE_ARCH}}"
+  update-information: "gh-releases-zsync|v1993|evdevhook2|latest|evdevhook2-*-{{APPIMAGE_ARCH}}.AppImage.zsync"