Run RPI integration tests for LedBlinker (#2264)

* Add RPI build workflow

* Update workflow to cross-compile

* Add RPI_TOOLCHAIN_DIR

* Use Setup action

* Correct setup action

* RPI integration

* Install fprime-gds on RPI

* activate venv

* create log folder

* fix paths

* Pytest usage

* handle logs better

* Fix tee usage

* final touch

* remove push trigger

* Use tutorial's devel branch

* log to action's output instead of file

* GDS --ip-client

* Renaming external build workflows

* Add get_target_branch to RPI workflow

* bombastic side eye

.github/workflows/ext-raspberry-led-blinker.yml

@@ -0,0 +1,95 @@
+# Cross-compile https://github.com/fprime-community/fprime-workshop-led-blinker
+# Runs integration tests on RaspberryPi
+
+name: "RPI LedBlinker"
+
+on:
+  push:
+    branches: [ master, devel ]
+  pull_request:
+    branches: [ master, devel ]
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - '.github/actions/spelling/**'
+      - '.github/ISSUE_TEMPLATE/**'
+
+env:
+  RPI_TOOLCHAIN_DIR: /tmp/rpi-toolchain
+
+jobs:
+  get-branch:
+    name: "Get target branch"
+    uses: ./.github/workflows/reusable-get-pr-branch.yml
+    with:
+      target_repository: fprime-community/fprime-workshop-led-blinker
+
+  cross-compilation:
+    name: "Cross Compilation"
+    runs-on: ubuntu-latest
+    needs: get-branch
+    steps:
+      - name: "Checkout target repository"
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+          repository: fprime-community/fprime-workshop-led-blinker
+          ref: ${{ needs.get-branch.outputs.target-branch }}
+      - name: "Overlay current F´ revision"
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+          path: ./fprime
+          fetch-depth: 0
+      - uses: ./fprime/.github/actions/setup
+        with:
+          location: ./fprime
+      - name: "Setup RPI Toolchain"
+        uses: fprime-community/setup-rpi-sysroot@main
+      - name: "Generate RPI Build Cache"
+        run: |
+          fprime-util generate raspberrypi
+      - name: "Build RPI"
+        run: |
+          fprime-util build raspberrypi
+      - name: "Prepare artifacts"
+        run: |
+          mkdir -p rpi-artifacts
+          cp -r ./build-artifacts rpi-artifacts
+          cp -r Components/Led/test/int rpi-artifacts
+      - name: 'Archive Build Artifacts'
+        uses: actions/upload-artifact@v3
+        with:
+          name: rpi-artifacts
+          path: rpi-artifacts
+          retention-days: 5
+
+  RPI-integration:
+    name: "RPI Integration Tests"
+    runs-on: self-hosted
+    needs: cross-compilation
+    steps:
+      - name: "Setup environment"
+        run: |
+          python -m venv venv
+          . venv/bin/activate
+          pip install fprime-gds
+      - name: "Artifacts Download"
+        uses: actions/download-artifact@v3
+        with:
+          name: rpi-artifacts
+      - name: Run Integration Tests
+        run: |
+          . venv/bin/activate
+          mkdir -p ci-logs
+          chmod +x ./build-artifacts/raspberrypi/LedBlinker/bin/LedBlinker
+          fprime-gds --ip-client -d ./build-artifacts/raspberrypi/LedBlinker --logs ./ci-logs &
+          sleep 10
+          pytest --dictionary ./build-artifacts/raspberrypi/LedBlinker/dict/LedBlinkerTopologyAppDictionary.xml ./int/led_integration_tests.py
+      - name: 'Archive logs'
+        uses: actions/upload-artifact@v3
+        if: always()
+        with:
+          name: rpi-logs
+          path: ci-logs
+          retention-days: 5