attempt cross-compilation in ci

.github/workflows/release.yml

@@ -22,10 +22,13 @@ jobs:
 
   build-release:
     strategy:
+      fail-fast: false
       matrix:
         include:
           - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
+          - os: ubuntu-latest
+            target: aarch64-unknown-linux-gnu
     needs: ['prepare-env']
     name: build-release
     runs-on: ${{ matrix.os }}
@@ -48,9 +51,9 @@ jobs:
       # install rust
       - run: rustup show && rustup target add ${{ matrix.target }}
       # install dependencies
-      - run: just setup
+      - run: cargo install cross --git https://github.com/cross-rs/cross
       # build (generates binaries)
-      - run: just build --locked --release --target=${{ matrix.target }}
+      - run: cross build --all --all-features --locked --release --target=${{ matrix.target }}
       - run: cargo test --locked manpage
       # create archive
       - name: Archive

.github/workflows/verify.yml

@@ -9,6 +9,14 @@ env:
 
 jobs:
   verify:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+          - os: ubuntu-latest
+            target: aarch64-unknown-linux-gnu
     name: Build & Test
     runs-on: ubuntu-latest
     steps:
@@ -18,7 +26,7 @@ jobs:
       - uses: extractions/setup-just@v1
       # setup rust toolchain
       # https://github.com/actions-rs/toolchain/issues/126#issuecomment-782989659
-      - run: rustup show
+      - run: rustup show && rustup target add ${{ matrix.target }}
       # cache
       - uses: actions/cache@v3
         with:
@@ -34,12 +42,15 @@ jobs:
             ~/.cargo/.crates.toml
             ~/.cargo/.crates2.json
             target/
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ runner.os }}-cargo-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
 
+      # install dependencies
+      - run: cargo install cross --git https://github.com/cross-rs/cross
       # verify
-      - run: just setup
-      - run: just build
-      - run: DEBUG=1 just test
+      - run: cross build --all --all-features --target ${{ matrix.target }}
+      # TODO: tests don't work for aarch64 in CI right now
+      - if: ${{ matrix.target }} == 'x86_64-unknown-linux-gnu'
+        run: DEBUG=1 just test
 
   release-aur-git:
     name: Update AUR(i3stat-git)

Cargo.toml

@@ -86,3 +86,10 @@ strip = true
 lto = true
 codegen-units = 1
 panic = "abort"
+
+# cross configuration
+[package.metadata.cross.target.aarch64-unknown-linux-gnu]
+image = "acheronfail/i3stat_aarch64-unknown-linux-gnu"
+
+[package.metadata.cross.target.x86_64-unknown-linux-gnu]
+image = "acheronfail/i3stat_x86_64-unknown-linux-gnu"

cross/aarch64-meson.txt

@@ -0,0 +1,12 @@
+[binaries]
+c = 'aarch64-linux-gnu-gcc'
+cpp = 'aarch64-linux-gnu-g++'
+ar = 'aarch64-linux-gnu-ar'
+strip = 'aarch64-linux-gnu-strip'
+pkgconfig = 'aarch64-linux-gnu-pkg-config'
+
+[host_machine]
+system = 'linux'
+cpu_family = 'aarch64'
+cpu = 'aarch64'
+endian = 'little'

cross/aarch64-unknown-linux-gnu.Dockerfile

@@ -0,0 +1,75 @@
+FROM ghcr.io/cross-rs/aarch64-unknown-linux-gnu:main
+
+ENV DEBIAN_FRONTEND=noninteractive TZ=Europe/London
+RUN dpkg --add-architecture arm64 && apt-get update
+
+RUN apt-get install -y \
+  build-essential \
+  clang \
+  dbus \
+  dunst \
+  i3-wm \
+  imagemagick \
+  libfaketime \
+  libiw-dev \
+  libx11-dev:arm64 \
+  scrot \
+  xserver-xephyr \
+  xvfb
+
+# NOTE: we build and install libpulse manually ourselves, since the version in
+# cross' current image is too low (v13). We need at least v14.
+RUN apt-get install -y \
+  autopoint \
+  bash-completion \
+  check:arm64 \
+  curl \
+  dbus-x11 \
+  dpkg-dev \
+  g++ \
+  gcc \
+  gettext \
+  git-core \
+  libasound2-dev \
+  libasyncns-dev \
+  libavahi-client-dev \
+  libbluetooth-dev \
+  libcap-dev:arm64 \
+  libdbus-1-dev:arm64 \
+  libfftw3-dev \
+  libglib2.0-dev \
+  libgtk-3-dev \
+  libice-dev \
+  libjack-dev \
+  liblircclient-dev \
+  libltdl-dev:arm64 \
+  liborc-0.4-dev \
+  libsbc-dev:arm64 \
+  libsndfile1-dev:arm64 \
+  libsoxr-dev \
+  libspeexdsp-dev \
+  libssl-dev \
+  libsystemd-dev \
+  libtdb-dev:arm64 \
+  libudev-dev \
+  libwebrtc-audio-processing-dev \
+  libwrap0-dev \
+  libx11-xcb-dev \
+  libxcb1-dev \
+  libxml-parser-perl \
+  libxml2-utils \
+  libxtst-dev \
+  m4 \
+  meson \
+  ninja-build \
+  pkg-config:arm64 \
+  python3-setuptools \
+  systemd \
+  wget
+RUN rm -rf /opt/pulseaudio && git clone \
+  --depth 1 \
+  --branch stable-14.x \
+  https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git \
+  /opt/pulseaudio
+COPY ./cross/aarch64-meson.txt /opt/pulseaudio/aarch64-meson.txt
+RUN cd /opt/pulseaudio && meson --cross-file aarch64-meson.txt build && cd build && ninja && ninja install

cross/x86_64-unknown-linux-gnu.Dockerfile

@@ -0,0 +1,71 @@
+FROM ghcr.io/cross-rs/x86_64-unknown-linux-gnu:main
+
+ENV DEBIAN_FRONTEND=noninteractive TZ=Europe/London
+
+RUN apt-get install -y \
+  build-essential \
+  clang \
+  dbus \
+  dunst \
+  i3-wm \
+  imagemagick \
+  libfaketime \
+  libiw-dev \
+  libx11-dev \
+  scrot \
+  xserver-xephyr \
+  xvfb
+
+# NOTE: we build and install libpulse manually ourselves, since the version in
+# cross' current image is too low (v13). We need at least v14.
+RUN apt-get install -y \
+  autopoint \
+  bash-completion \
+  check \
+  curl \
+  dbus-x11 \
+  g++ \
+  gcc \
+  gettext \
+  git-core \
+  libasound2-dev \
+  libasyncns-dev \
+  libavahi-client-dev \
+  libbluetooth-dev \
+  libcap-dev \
+  libfftw3-dev \
+  libglib2.0-dev \
+  libgtk-3-dev \
+  libice-dev \
+  libjack-dev \
+  liblircclient-dev \
+  libltdl-dev \
+  liborc-0.4-dev \
+  libsbc-dev \
+  libsndfile1-dev \
+  libsoxr-dev \
+  libspeexdsp-dev \
+  libssl-dev \
+  libsystemd-dev \
+  libtdb-dev \
+  libudev-dev \
+  libwebrtc-audio-processing-dev \
+  libwrap0-dev \
+  libx11-xcb-dev \
+  libxcb1-dev \
+  libxml-parser-perl \
+  libxml2-utils \
+  libxtst-dev \
+  m4 \
+  meson \
+  ninja-build \
+  pkg-config \
+  python3-setuptools \
+  systemd \
+  wget
+RUN rm -rf /opt/pulseaudio && git clone \
+  --depth 1 \
+  --branch stable-14.x \
+  https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git \
+  /opt/pulseaudio
+RUN cd /opt/pulseaudio && meson build && cd build && ninja && ninja install

justfile

@@ -20,9 +20,6 @@ setup:
 @check +CMDS:
     echo {{CMDS}} | xargs -n1 sh -c 'if ! command -v $1 >/dev/null 2>&1 /dev/null; then echo "$1 is required!"; exit 1; fi' bash
 
-# build the crate
-build *args:
-  cargo build --all --all-features {{args}}
 _lbuild:
   cargo lbuild --all