Create workflow to post to X

Author: zcorpan

.github/workflows/post-to-x.yml

@@ -0,0 +1,41 @@
+name: Post landed commits to X
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  post:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Refresh X OAuth token
+        id: x
+        run: |
+          RESPONSE=$(curl -s -X POST "https://api.twitter.com/2/oauth2/token" \
+            -H "Content-Type: application/x-www-form-urlencoded" \
+            -u "${{ secrets.X_CLIENT_ID }}:${{ secrets.X_CLIENT_SECRET }}" \
+            --data-urlencode "grant_type=refresh_token" \
+            --data-urlencode "refresh_token=${{ secrets.X_REFRESH_TOKEN }}")
+
+          ACCESS_TOKEN=$(echo "$RESPONSE" | jq -r '.access_token')
+
+          if [ "$ACCESS_TOKEN" = "null" ] || [ -z "$ACCESS_TOKEN" ]; then
+            echo "$RESPONSE"
+            exit 1
+          fi
+
+          echo "::add-mask::$ACCESS_TOKEN"
+          echo "access_token=$ACCESS_TOKEN" >> "$GITHUB_OUTPUT"
+
+      - name: Post to X
+        run: |
+          TEXT="New commit: ${{ github.event.head_commit.message }} ${{ github.event.head_commit.url }}"
+
+          jq -n --arg text "$TEXT" '{text: $text}' > body.json
+
+          curl -s -f -X POST "https://api.twitter.com/2/tweets" \
+            -H "Authorization: Bearer ${{ steps.x.outputs.access_token }}" \
+            -H "Content-Type: application/json" \
+            -d @body.json | jq .