restructure ci to not rebuild when nothing changed

.github/actions/deploy.yml

@@ -0,0 +1,60 @@
+name: deploy
+
+inputs:
+  branch:
+    required: true
+    type: string
+
+runs:
+  using: composite
+  steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        ref: deploy
+        fetch-depth: 0
+
+    - name: Setup git
+      run: |
+        git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
+        git config --local user.name "github-actions[bot]"
+
+    - name: Download Artifacts
+      uses: actions/download-artifact@v4
+      with:
+        path: artifacts
+        name: ${{ matrix.branch }}
+
+    - name: Copy artifacts
+      run: |
+        mv -f artifacts/app-release.apk ${{ matrix.branch }}/app-release.apk
+        mv -f artifacts/app-debug.apk ${{ matrix.branch }}/app-debug.apk
+        mv -f artifacts/stub-release.apk ${{ matrix.branch }}/stub-release.apk
+        rm -r artifacts
+
+    - name: Run helper script
+      run: |
+        git checkout origin/ci-management releasehelper.sh
+        chmod +x releasehelper.sh
+        ./releasehelper.sh ${{ matrix.branch }}
+        mv -f ${{ matrix.branch }}.json docs
+        mv -f note.md ${{ matrix.branch }}/note.md
+        rm releasehelper.sh
+
+    - name: Commit update
+      run: |
+        git restore --staged .
+        git add ${{ matrix.branch }}/app-release.apk
+        git add ${{ matrix.branch }}/app-debug.apk
+        git add ${{ matrix.branch }}/stub-release.apk
+        git add ${{ matrix.branch }}/note.md
+        git add docs/${{ matrix.branch }}.json
+        git commit --amend -m "Update ${{ matrix.branch }} ${{ env.VERSION }}"
+
+    - name: Push result
+      uses: ad-m/[email protected]
+      with:
+        branch: deploy
+        force_with_lease: true
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        repository: ${{ github.repository }}

.github/workflows/automerge.yml

@@ -6,11 +6,16 @@ on:
       branch:
         required: true
         type: string
+    outputs:
+      changed:
+        value: ${{ jobs.automerge.outputs.changed }}
 
 jobs:
   automerge:
     name: Automerge ${{ inputs.branch }}
     runs-on: ubuntu-latest
+    outputs:
+      changed: ${{ steps.rebase.outputs.changed }}
 
     steps:
       - name: Checkout

.github/workflows/ci.yml

@@ -28,6 +28,7 @@ jobs:
       branch: madness
   build-stable:
     needs: automerge-stable
+    if: needs.automerge-stable.outputs.changed == 'true'
     uses: ./.github/workflows/build.yml
     with:
       branch: stable
@@ -36,6 +37,7 @@ jobs:
       KEYSTORE_KEY: ${{ secrets.KEYSTORE_KEY }}
   build-beta:
     needs: automerge-beta
+    if: needs.automerge-beta.outputs.changed == 'true'
     uses: ./.github/workflows/build.yml
     with:
       branch: beta
@@ -44,6 +46,7 @@ jobs:
       KEYSTORE_KEY: ${{ secrets.KEYSTORE_KEY }}
   build-canary:
     needs: automerge-canary
+    if: needs.automerge-canary.outputs.changed == 'true'
     uses: ./.github/workflows/build.yml
     with:
       branch: canary
@@ -52,6 +55,7 @@ jobs:
       KEYSTORE_KEY: ${{ secrets.KEYSTORE_KEY }}
   build-madness:
     needs: automerge-madness
+    if: needs.automerge-madness.outputs.changed == 'true'
     uses: ./.github/workflows/build.yml
     with:
       branch: madness
@@ -61,4 +65,15 @@ jobs:
   deploy:
     if: always()
     needs: [build-stable, build-beta, build-canary, build-madness]
-    uses: ./.github/workflows/deploy.yml
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        branch: [ stable, beta, canary, madness ]
+      fail-fast: false
+      max-parallel: 1
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/deploy.yml
+        if: needs[format('build-{0}', matrix.branch)].outputs.changed == 'true'
+        with: 
+          branch: ${{ matrix.branch }}