ci(srtool): optimize runtime build workflow (#1562)

- Add automatic trigger for rc version tags (v*.*.*.rc*)
- Flatten artifact directory structure
- Add runtime info to Slack notification
- Remove redundant subwasm artifacts
- Improve workflow reusability for release process

Co-authored-by: arescui <cuishuaijie@live.com>

.github/workflows/srtool.yml

@@ -6,22 +6,26 @@ env:
 on:
   workflow_dispatch:
   workflow_call:
+  push:
+    tags:
+      - 'v[0-9]+\.[0-9]+\.[0-9]+-rc[0-9]+' 
 
 jobs:
   build:
-    name: Build ${{ matrix.chain }} ${{ github.event.inputs.ref }}
+    name: Build ${{ matrix.chain }} ${{ github.event.inputs.ref || github.ref_name }}
     strategy:
       fail-fast: false
       matrix:
         chain: ["bifrost-kusama", "bifrost-polkadot"]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: "📥 Checkout"
+        uses: actions/checkout@v4
         with:
-          ref: ${{ github.event.inputs.ref }}
-          fetch-depth: 0
+          ref: ${{ github.event.inputs.ref || github.ref }}
+          fetch-depth: 1
 
-      - name: Srtool build
+      - name: "🏗️ Build Runtime"
         id: srtool_build
         uses: chevdor/srtool-actions@v0.8.0
         env:
@@ -30,45 +34,63 @@ jobs:
           profile: production
           chain: ${{ matrix.chain }}
           runtime_dir: runtime/${{ matrix.chain }}
-      - name: Summary
+
+      - name: "🔍 Summary"
         run: |
           echo '${{ steps.srtool_build.outputs.json }}' | jq > ${{ matrix.chain }}-srtool-digest.json
           cat ${{ matrix.chain }}-srtool-digest.json
           echo "Runtime location: ${{ steps.srtool_build.outputs.wasm }}"
+          cp ${{ steps.srtool_build.outputs.wasm_compressed }} ./${{ matrix.chain }}_runtime.compact.compressed.wasm
 
-      # it takes a while to build the runtime, so let's save the artifact as soon as we have it
-      - name: Archive Artifacts for ${{ matrix.chain }}
-        uses: actions/upload-artifact@v4
-        with:
-          name: ${{ matrix.chain }}-runtime
-          path: |
-            ${{ steps.srtool_build.outputs.wasm }}
-            ${{ steps.srtool_build.outputs.wasm_compressed }}
-            ${{ matrix.chain }}-srtool-digest.json
-
-      # We now get extra information thanks to subwasm,
       - name: Install subwasm ${{ env.SUBWASM_VERSION }}
         run: |
           wget https://github.com/chevdor/subwasm/releases/download/v${{ env.SUBWASM_VERSION }}/subwasm_linux_amd64_v${{ env.SUBWASM_VERSION }}.deb
           sudo dpkg -i subwasm_linux_amd64_v${{ env.SUBWASM_VERSION }}.deb
           subwasm --version
-      - name: Show Runtime information
+
+      - name: "🔍 Get Runtime information"
+        id: runtime_info
         run: |
+          echo "compressed_info<<EOF" >> $GITHUB_OUTPUT
+          subwasm info ${{ steps.srtool_build.outputs.wasm_compressed }} >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
           subwasm info ${{ steps.srtool_build.outputs.wasm }}
           subwasm info ${{ steps.srtool_build.outputs.wasm_compressed }}
-          subwasm --json info ${{ steps.srtool_build.outputs.wasm }} > ${{ matrix.chain }}-info.json
-          subwasm --json info ${{ steps.srtool_build.outputs.wasm_compressed }} > ${{ matrix.chain }}-info_compressed.json
-      - name: Extract the metadata
-        run: |
           subwasm meta ${{ steps.srtool_build.outputs.wasm }}
-          subwasm --json meta ${{ steps.srtool_build.outputs.wasm }} > ${{ matrix.chain }}-metadata.json
+          subwasm info ${{ steps.srtool_build.outputs.wasm }} > runtime_info.txt
+          subwasm info ${{ steps.srtool_build.outputs.wasm_compressed }} >> runtime_info.txt
 
-      - name: Archive Subwasm results
+      - name: Archive Artifacts for ${{ matrix.chain }}
+        id: upload_artifacts 
         uses: actions/upload-artifact@v4
         with:
-          name: ${{ matrix.chain }}-runtime-${{ github.sha }}
+          name: ${{ matrix.chain }}-runtime-${{ github.event.inputs.ref || github.ref_name }}
           path: |
-            ${{ matrix.chain }}-info.json
-            ${{ matrix.chain }}-info_compressed.json
-            ${{ matrix.chain }}-metadata.json
-            ${{ matrix.chain }}-diff.txt
+            ${{ matrix.chain }}_runtime.compact.compressed.wasm
+            ${{ matrix.chain }}-srtool-digest.json
+            runtime_info.txt
+
+      - uses: 8398a7/action-slack@v3
+        name: "Send Slack Notification"
+        if: success()
+        with:
+          status: custom
+          fields: workflow,job,commit,repo,ref,author,took
+          custom_payload: |
+            {
+              "attachments": [{
+                "color": "good",
+                "text": ":rocket: New runtime build for ${{ matrix.chain }} (${{ github.event.inputs.ref || github.ref_name }})\nDownload artifacts: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}/artifacts/${{ steps.upload_artifacts.outputs.artifact-id }}"
+              }]
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+
+      - name: Debug Trigger
+        run: |
+          echo "github.ref: ${{ github.ref }}"
+          echo "github.ref_name: ${{ github.ref_name }}"
+          echo "github.event_name: ${{ github.event_name }}"
+          echo "github.action: ${{ github.action }}"
+
+