Add GitHub Actions workflow to show database migration queries

Author: Siroshun09

.github/workflows/show-migration-query.yml

@@ -0,0 +1,75 @@
+name: Show Migration Query
+on:
+  push:
+  workflow_dispatch:
+    inputs:
+      base_commit_hash:
+        type: string
+        required: true
+        description: A base hash to compare to the latest shema.
+
+jobs:
+  run-atlas:
+    runs-on: ubuntu-latest
+    services:
+      mariadb:
+        image: mariadb:11.7.2@sha256:11706a6fd276c2eada52d0d69b1a2aa1f1484cbe78137678e02cca8f7a0ae502
+        ports:
+          - "3306:3306"
+        env:
+          MYSQL_DATABASE: ${{ env.MONITOR_DB_NAME }}
+          MYSQL_ROOT_PASSWORD: ${{ env.MONITOR_DB_PASSWORD }}
+        options: >-
+          --health-cmd "healthcheck.sh --connect --innodb_initialized"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    env:
+      MONITOR_DB_HOST: 127.0.0.1
+      MONITOR_DB_PORT: 3306
+      MONITOR_DB_USER: root
+      MONITOR_DB_PASSWORD: monitor_pw
+      MONITOR_DB_NAME: monitor_db
+    steps:
+      - name: Checkout base schema.sql
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          ref: 79647d157d17e404adb9377a39faa6591ff9d4d6 # FIXME: ${{ inputs.base_commit_hash }}
+          path: ./base
+          sparse-checkout: |
+            schema/database
+      - name: Checkout latest schema.sql
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          ref: main
+          path: ./latest
+          sparse-checkout: |
+            schema/database
+      - name: Create monitor_dev database
+        run: |
+          mysql -h ${{ env.MONITOR_DB_HOST }} -P ${{ env.MONITOR_DB_PORT }} -u ${{ env.MONITOR_DB_USER }} -p${{ env.MONITOR_DB_PASSWORD }} -e "CREATE DATABASE IF NOT EXISTS monitor_dev;"
+      - name: Apply base schema to monitor_db
+        run: |
+          mysql -h ${{ env.MONITOR_DB_HOST }} -P ${{ env.MONITOR_DB_PORT }} -u ${{ env.MONITOR_DB_USER }} -p${{ env.MONITOR_DB_PASSWORD }} ${{ env.MONITOR_DB_NAME }} < ./base/schema/database/schema.sql
+      - name: Install Atlas
+        run: |
+          curl -sSf https://atlasgo.sh | sh
+          echo "$HOME/.atlas/bin" >> $GITHUB_PATH
+      - name: Run atlas migrate diff
+        run: |
+          migration_query=$(atlas schema apply \
+            --url "maria://${{ env.MONITOR_DB_USER }}:${{ env.MONITOR_DB_PASSWORD }}@${{ env.MONITOR_DB_HOST }}:${{ env.MONITOR_DB_PORT }}/${{ env.MONITOR_DB_NAME }}" \
+            --to "file://./latest/schema/database/schema.sql" \
+            --dev-url "maria://${{ env.MONITOR_DB_USER }}:${{ env.MONITOR_DB_PASSWORD }}@${{ env.MONITOR_DB_HOST }}:${{ env.MONITOR_DB_PORT }}/monitor_dev" \
+            --dry-run \
+            --format "{{ sql . }})
+
+          echo "MIGRATION_QUERY<<EOF" >> $GITHUB_ENV
+          echo "$migration_query" >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+      - name: Output migration query to GitHub Actions Summary
+        run: |
+          echo "## Migration Query" >> $GITHUB_STEP_SUMMARY
+          echo '```sql' >> $GITHUB_STEP_SUMMARY
+          echo "${{ env.MIGRATION_QUERY }}" >> $GITHUB_STEP_SUMMARY
+          echo '```' >> $GITHUB_STEP_SUMMARY