test: parallelize e2e builds in gh action

.github/workflows/e2e-test2.yml

@@ -0,0 +1,110 @@
+name: "E2e test"
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    name: parallel buck2 builds
+    runs-on: ubuntu-latest
+    timeout-minutes: 25
+    strategy:
+      matrix:
+        target:
+          - //core/api
+          - //core/api-ws-server
+          - //core/api-trigger
+          - //core/api-exporter
+          - //apps/dashboard
+          - //apps/consent
+          - //apps/pay
+          - //apps/admin-panel
+          - //apps/map
+          - //apps/voucher
+          - //core/api-keys
+          - //core/notifications
+          - //bats/helpers/callback:run
+          - //bats/helpers/subscriber:run
+          - //bats/helpers/totp:generate
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+
+      - name: Run the Magic Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
+
+      - name: Setup Buck cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.buck2
+            buck-out
+            .buck-cache
+            prebuilt
+            installed
+            target
+            .buckd
+            buck-out/cache
+          key: buck2-${{ matrix.target }}-${{ hashFiles('**/BUCK', '**/BUCK.bzl', '**/MODULE.bazel', '**/deps.bzl') }}
+
+      - name: Build ${{ matrix.target }}
+        run: |
+          nix develop -c buck2 kill
+          nix develop -c buck2 build ${{ matrix.target }}
+
+      - name: Generate artifact name
+        id: artifact-name
+        run: |
+          SAFE_NAME=$(echo "${{ matrix.target }}" | sed 's|^//||' | sed 's|/|-|g' | sed 's|:run$||' | sed 's|:|-|g' | tr '[:upper:]' '[:lower:]')
+          echo "name=build-artifacts-${SAFE_NAME}" >> $GITHUB_OUTPUT
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: ${{ steps.artifact-name.outputs.name }}
+          path: |
+            buck-out
+            .buck-cache
+            prebuilt
+            installed
+            target
+
+  tests:
+    needs: build
+    name: execute via bats
+    runs-on: ubuntu-latest
+    timeout-minutes: 25
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+
+      - name: Run the Magic Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
+
+      - name: Download all build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          pattern: build-artifacts-*
+          merge-multiple: true
+
+      - name: Run bats tests
+        run: |
+          nix develop -c buck2 kill
+          nix develop -c bats --setup-suite-file bats/ci_setup_suite.bash -t bats/core/**
+
+      - name: Rename Tilt log
+        if: always()
+        run: mv bats/.e2e-tilt.log bats/e2e-tilt.log
+
+      - name: Upload Tilt log
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: Tilt log
+          path: bats/e2e-tilt.log