feat: add ziglang-docs-epub tool

1 files changed, 54 insertions, 0 deletions

diff --git a/.forgejo/workflows/build-epubs.yml b/.forgejo/workflows/build-epubs.yml
new file mode 100644
index 0000000..676d3c2
--- /dev/null
+++ b/.forgejo/workflows/build-epubs.yml
@@ -0,0 +1,54 @@
+name: build-epubs
+
+on:
+  schedule:
+    - cron: "0 6 * * *" # daily, to catch master/new releases
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: docker
+    container:
+      image: docker.io/debian:trixie-slim
+    steps:
+      - name: Install prerequisites
+        run: |
+          apt-get update
+          apt-get install -y --no-install-recommends ca-certificates curl xz-utils git
+
+      - uses: actions/checkout@v4
+
+      - name: Install Zig 0.15.2
+        run: |
+          set -eux
+          arch="$(uname -m)"
+          tarball="zig-${arch}-linux-0.15.2.tar.xz"
+          curl -fSL "https://ziglang.org/download/0.15.2/${tarball}" -o /tmp/zig.tar.xz
+          mkdir -p /opt/zig
+          tar -xJf /tmp/zig.tar.xz -C /opt/zig --strip-components=1
+          echo "/opt/zig" >> "$GITHUB_PATH"
+
+      - name: Build EPUBs
+        run: zig build run
+
+      - name: Commit updated EPUBs
+        run: |
+          set -eux
+          git config user.name "ziggy"
+          git config user.email "ziggy@noreply.codeberg.org"
+          git add epubs/
+          if git diff --cached --quiet; then
+            echo "No EPUB changes."
+            exit 0
+          fi
+          git commit -m "build: update epubs [skip ci]"
+          # Uses the runner token by default; set CI_PUSH_TOKEN if it lacks push rights.
+          if [ -n "${CI_PUSH_TOKEN:-}" ]; then
+            git push "https://x-access-token:${CI_PUSH_TOKEN}@${GITHUB_SERVER_URL#https://}/${GITHUB_REPOSITORY}.git" HEAD:main
+          else
+            git push origin HEAD:main
+          fi
+        env:
+          CI_PUSH_TOKEN: ${{ secrets.CI_PUSH_TOKEN }}