tools: updated package watcher with helper script

.github/workflows/package-watcher.yaml

@@ -1,42 +1,23 @@
 name: Package Version Checker
 
 on:
-  # schedule:
-  #   # * is a special character in YAML so you have to quote this string
-  #   # At minute 0 for each hour from 8:00 to 22:00 inclusive from Monday to Friday inclusive
-  #   - cron: '0 8-22 * * 1-5'
-  workflow_dispatch:
+  schedule:
+    # * is a special character in YAML so you have to quote this string
+    # At minute 0 for each hour from 8:00 to 22:00 inclusive from Monday to Friday inclusive
+    - cron: '0 8-22 * * 1-5'
 
 jobs:
   check_and_notify_build:
     name: Check timestamps and notify build
     runs-on: ubuntu-20.04
-    env:
-      BASE_IMG_ENDPOINT_URL: "https://api.github.com/orgs/zama-ai/packages/container/zamalang-compiler"
-      ENV_IMG_ENDPOINT_URL: "https://api.github.com/orgs/zama-ai/packages/container/hdk-env"
     steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
       - name: Compare image timestamps and notify
         run: |
-          BASE_IMG_TIMESTAMP=$(curl \
-            -X GET \
-            -H "Accept: application/vnd.github.v3+json" \
-            -H "Authorization: token ${{ secrets.BOT_TOKEN }}" \
-            "${BASE_IMG_ENDPOINT_URL}" | jq -r '.updated_at')
-          ENV_IMG_TIMESTAMP=$(curl \
-            -X GET \
-            -H "Accept: application/vnd.github.v3+json" \
-            -H "Authorization: token ${{ secrets.BOT_TOKEN }}" \
-            "${ENV_IMG_ENDPOINT_URL}" | jq -r '.updated_at')
-          BASE_IMG_DATE=$(date -d ${BASE_IMG_TIMESTAMP} +%s)
-          ENV_IMG_DATE=$(date -d ${ENV_IMG_TIMESTAMP} +%s)
-          if [[ "${BASE_IMG_DATE}" -ge "${ENV_IMG_DATE}" ]]; then
-            echo "Env image out of date, sending rebuild request."
-            curl \
-            -X POST \
-            -H "Accept: application/vnd.github.v3+json" \
-            -H "Authorization: token ${{ secrets.BOT_TOKEN }}" \
-            https://api.github.com/repos/zama-ai/hdk/dispatches \
-            -d '{"event_type":"rebuild-docker"}'
-          else
-            echo "Image up to date, nothing to do."
-          fi
+          ./script/actions_utils/container_timestamp_check.sh \
+          --base_img_url \
+          https://api.github.com/orgs/zama-ai/packages/container/zamalang-compiler/versions \
+          --env_img_url \
+          https://api.github.com/orgs/zama-ai/packages/container/hdk-env/versions \
+          --token ${{ secrets.BOT_TOKEN }}