ci: Add automated ABI check job

Add automated ABI check with abigail.

Author: tintou

.github/workflows/build-test.yml

@@ -2,6 +2,9 @@ name: Build Test
 
 on: [push, pull_request]
 
+env:
+  LAST_ABI_BREAK: 0f33069752fe06f6daf3d977cd09665b059494d8
+
 jobs:
   build-test:
     name: Build & Test
@@ -21,11 +24,40 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - name: Get this version
+        uses: actions/checkout@v4
+
+      - name: Get version from last ABI break
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ env.LAST_ABI_BREAK }}
+          path: original-version
+        if: ${{ matrix.distro == 'debian' }}
 
       - name: Create Build Environment
         run: podman build -t packagekit-${{ matrix.distro }} -f tests/ci/Dockerfile-${{ matrix.distro }} .
 
       - name: Build & Test
         run: podman run -t -v `pwd`:/build packagekit-${{ matrix.distro }}
              ./tests/ci/build-and-test.sh -Dpackaging_backend=${{ matrix.backend }}
+
+  check-abi:
+    name: Check ABI
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Get this version
+        uses: actions/checkout@v4
+
+      - name: Get version from last ABI break
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ env.LAST_ABI_BREAK }}
+          path: original-version
+
+      - name: Create Build Environment
+        run: podman build -t packagekit-debian -f tests/ci/Dockerfile-debian
+
+      - name: Build & Test
+        run: podman run -t -v `pwd`:/build packagekit-debian
+             ./tests/ci/check-abi.sh -Dpackaging_backend=apt

tests/ci/Dockerfile-debian

@@ -8,6 +8,7 @@ RUN apt-get install -yq eatmydata build-essential
 
 # install build dependencies
 RUN eatmydata apt-get install -yq --no-install-recommends \
+	abigail-tools \
 	appstream \
 	bash-completion \
 	gettext \

tests/ci/check-abi.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+set -e
+
+if [ -d "build" ]; then
+  rm build -rf
+fi
+set -x
+
+meson setup build \
+    -Dlocal_checkout=true \
+    $@
+
+DUMMY_DESTDIR=/tmp/install-root/
+rm -rf $DUMMY_DESTDIR
+
+# Build & Install
+ninja -C build
+DESTDIR=$DUMMY_DESTDIR ninja -C build install
+
+pushd original-version
+
+if [ -d "build" ]; then
+  rm build -rf
+fi
+
+meson setup build \
+    -Dlocal_checkout=true \
+    $@
+
+DUMMY_ORIG_DESTDIR=/tmp/install-root-orig
+rm -rf $DUMMY_ORIG_DESTDIR
+
+# Build & Install
+ninja -C build
+DESTDIR=$DUMMY_ORIG_DESTDIR ninja -C build install
+
+popd
+
+abidiff \
+    --headers-dir1 ${DUMMY_ORIG_DESTDIR}/usr/local/include/PackageKit/packagekit-glib2 \
+    --headers-dir2 ${DUMMY_DESTDIR}/usr/local/include/PackageKit/packagekit-glib2 \
+    --drop-private-types \
+    --fail-no-debug-info \
+    --no-added-syms \
+    ${DUMMY_ORIG_DESTDIR}/usr/local/lib/x86_64-linux-gnu/libpackagekit-glib2.so \
+    ${DUMMY_DESTDIR}/usr/local/lib/x86_64-linux-gnu/libpackagekit-glib2.so