Switch the project from 0xacab to github

While the folks running 0xacab are much more lovely than the github ones, this
project has outgrown the former:

- Github offers beefy continuous integration, make it easier to run the
  testsuite on every python version, instead of using a weird docker-based
  contraption. Moreover, I'd rather burn some Microsoft money than 0xacab one.
- Opening an account on 0xacab is non-trivial (by design), making it tedious
  for people to report issues and contribute to mat2.
- Gitlab is becoming unbearably slow and convoluted, even compared to Github's
  awful Copilot/AI push.

It's a sad state of affairs, but it's a pragmatic decision. People who don't
have a Github account can still report issues and send patches by sending me an
email.

1 files changed, 45 insertions, 0 deletions

diff --git a/.github/workflows/builds.yaml b/.github/workflows/builds.yaml
new file mode 100644
index 0000000..f6a62d0
--- /dev/null
+++ b/.github/workflows/builds.yaml
@@ -0,0 +1,45 @@
+name: CI for Python versions
+on:
+  pull_request:
+  push:
+  schedule:
+    - cron: '0 16 * * 5'
+
+jobs:
+  linting:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - uses: actions/setup-python@v5
+      - run: pip install ruff
+      - run: | 
+          ruff check .
+  build:
+    needs: linting
+    runs-on: ubuntu-latest
+    strategy:
+        matrix:
+          python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14.0-rc.2"]
+    steps:
+      - uses: actions/checkout@v5
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          sudo apt-get install --no-install-recommends --no-install-suggests --yes \
+            ffmpeg \
+            gir1.2-gdkpixbuf-2.0 \
+            gir1.2-poppler-0.18 \
+            gir1.2-rsvg-2.0 \
+            libimage-exiftool-perl \
+            python3-gi-cairo \
+            libcairo2-dev \
+            libgirepository-2.0-dev \
+            libgirepository1.0-dev \
+            gobject-introspection \
+            python3-mutagen
+          pip install .
+      - name: Build and run the testsuite
+        run:  python3 -m unittest discover -v