Add CI bot to automatically run go generate and create PRs

.github/workflows/regenerate.yml

@@ -0,0 +1,83 @@
+name: Regenerate bindings
+on:
+  # Uncomment during development to make testing easier
+  #push:
+  schedule:
+    # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#schedule
+    # Runs on Mon,Thu. For help with cron syntax, see https://crontab.guru/
+    - cron:  '33 1 * * 1,4'
+
+jobs:
+  regenerate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install Mesa
+        run: |
+          sudo apt-get update
+          sudo apt-get install \
+              libxcursor-dev \
+              libxrandr-dev \
+              libxinerama-dev \
+              libxi-dev \
+              libgl1-mesa-dev
+
+      - name: Checkout gl
+        uses: actions/checkout@v4
+        with:
+          path: gl
+
+      - name: Checkout glow
+        uses: actions/checkout@v4
+        with:
+          repository: go-gl/glow
+          path: glow
+
+      - name: Checkout examples
+        uses: actions/checkout@v4
+        with:
+          repository: go-gl/example
+          path: example
+
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: 'stable'
+
+      - name: Regenerate files
+        run: |
+          go work init
+          go work use gl/
+          go work use glow/
+          go work use example/
+
+          cd gl
+          # Clean up previously generated files
+          rm -r */
+          go generate -tags=gen .
+          go test -v -race ./...
+          cd ..
+
+          # Test for API breakage
+          go test ./example/...
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v5
+        with:
+          path: gl
+          commit-message: Regenerate bindings
+          author: GitHub <[email protected]>
+          title: Regenerate bindings
+          body: |
+            This pull request was triggered by one of the following events:
+
+            - https://github.com/go-gl/glow has been updated
+            - The output of gofmt has changed in the latest Go version
+
+            If checks are not available, you may need to close and reopen this pull request.
+            [See here for details.][2]
+
+            Auto-generated by [create-pull-request][1]
+
+            [1]: https://github.com/peter-evans/create-pull-request
+            [2]: https://github.com/peter-evans/create-pull-request/blob/main/docs/concepts-guidelines.md#workarounds-to-trigger-further-workflow-runs
+          branch: regenerate