add cache for ci

.github/workflows/build.yml

@@ -10,6 +10,14 @@ env:
   PICO_SDK_REF: 2.2.0
   TINYUSB_REF: 0.20.0
   PICO_SDK_PATH: ${{ github.workspace }}/pico-sdk
+  APT_PACKAGES: >-
+    cmake
+    python3
+    build-essential
+    gcc-arm-none-eabi
+    libnewlib-arm-none-eabi
+    libstdc++-arm-none-eabi-newlib
+    ninja-build
 
 jobs:
   build:
@@ -22,12 +30,40 @@ jobs:
         with:
           submodules: recursive
 
+      - name: Prepare build dependency cache
+        id: apt-cache
+        run: |
+          mkdir -p "$RUNNER_TEMP/apt-cache/partial"
+          . /etc/os-release
+          package_hash="$(printf '%s' "$APT_PACKAGES" | sha256sum | cut -d ' ' -f 1)"
+          echo "dir=$RUNNER_TEMP/apt-cache" >> "$GITHUB_OUTPUT"
+          echo "os=${ID}-${VERSION_ID}" >> "$GITHUB_OUTPUT"
+          echo "package-hash=$package_hash" >> "$GITHUB_OUTPUT"
+
+      - name: Cache build dependencies
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.apt-cache.outputs.dir }}
+          key: ${{ runner.os }}-${{ runner.arch }}-apt-${{ steps.apt-cache.outputs.os }}-${{ steps.apt-cache.outputs.package-hash }}
+          restore-keys: |
+            ${{ runner.os }}-${{ runner.arch }}-apt-${{ steps.apt-cache.outputs.os }}-
+
       - name: Install build dependencies
         run: |
-          sudo apt update
+          sudo apt-get update
-          sudo apt install -y cmake python3 build-essential gcc-arm-none-eabi libnewlib-arm-none-eabi libstdc++-arm-none-eabi-newlib ninja-build
+          sudo apt-get -o Dir::Cache::archives="${{ steps.apt-cache.outputs.dir }}" install --download-only -y $APT_PACKAGES
+          sudo apt-get -o Dir::Cache::archives="${{ steps.apt-cache.outputs.dir }}" install -y $APT_PACKAGES
+          sudo chmod -R a+rX "${{ steps.apt-cache.outputs.dir }}"
+
+      - name: Cache Pico SDK
+        id: cache-pico-sdk
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.PICO_SDK_PATH }}
+          key: ${{ runner.os }}-${{ runner.arch }}-pico-sdk-${{ env.PICO_SDK_REF }}-tinyusb-${{ env.TINYUSB_REF }}
 
       - name: Download Pico SDK
+        if: steps.cache-pico-sdk.outputs.cache-hit != 'true'
         run: |
           git clone --depth 1 --branch "$PICO_SDK_REF" https://github.com/raspberrypi/pico-sdk.git "$PICO_SDK_PATH"
           git -C "$PICO_SDK_PATH" submodule update --init --recursive
@@ -48,12 +84,12 @@ jobs:
           mkdir -p artifacts
           cp build/standard/ds5-bridge.uf2 artifacts/ds5-bridge.uf2
 
-      - name: Build DSE firmware
+      - name: Build Debug firmware
         run: |
-          cmake -S . -B build/dse -G Ninja \
+          cmake -S . -B build/debug -G Ninja \
             -DCMAKE_BUILD_TYPE=Release \
             -DPICO_SDK_PATH="$PICO_SDK_PATH" \
-            -DENABLE_DSE=ON
+            -DENABLE_SERIAL=ON
           cmake --build build/dse --target ds5-bridge
           cp build/dse/ds5-bridge.uf2 artifacts/ds5-bridge-dse.uf2
 

.github/workflows/release.yml

@@ -9,6 +9,14 @@ env:
   PICO_SDK_REF: 2.2.0
   TINYUSB_REF: 0.20.0
   PICO_SDK_PATH: ${{ github.workspace }}/pico-sdk
+  APT_PACKAGES: >-
+    cmake
+    python3
+    build-essential
+    gcc-arm-none-eabi
+    libnewlib-arm-none-eabi
+    libstdc++-arm-none-eabi-newlib
+    ninja-build
 
 permissions:
   contents: write
@@ -25,12 +33,40 @@ jobs:
           ref: ${{ github.event.release.tag_name }}
           submodules: recursive
 
+      - name: Prepare build dependency cache
+        id: apt-cache
+        run: |
+          mkdir -p "$RUNNER_TEMP/apt-cache/partial"
+          . /etc/os-release
+          package_hash="$(printf '%s' "$APT_PACKAGES" | sha256sum | cut -d ' ' -f 1)"
+          echo "dir=$RUNNER_TEMP/apt-cache" >> "$GITHUB_OUTPUT"
+          echo "os=${ID}-${VERSION_ID}" >> "$GITHUB_OUTPUT"
+          echo "package-hash=$package_hash" >> "$GITHUB_OUTPUT"
+
+      - name: Cache build dependencies
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.apt-cache.outputs.dir }}
+          key: ${{ runner.os }}-${{ runner.arch }}-apt-${{ steps.apt-cache.outputs.os }}-${{ steps.apt-cache.outputs.package-hash }}
+          restore-keys: |
+            ${{ runner.os }}-${{ runner.arch }}-apt-${{ steps.apt-cache.outputs.os }}-
+
       - name: Install build dependencies
         run: |
-          sudo apt update
+          sudo apt-get update
-          sudo apt install -y cmake python3 build-essential gcc-arm-none-eabi libnewlib-arm-none-eabi libstdc++-arm-none-eabi-newlib ninja-build
+          sudo apt-get -o Dir::Cache::archives="${{ steps.apt-cache.outputs.dir }}" install --download-only -y $APT_PACKAGES
+          sudo apt-get -o Dir::Cache::archives="${{ steps.apt-cache.outputs.dir }}" install -y $APT_PACKAGES
+          sudo chmod -R a+rX "${{ steps.apt-cache.outputs.dir }}"
+
+      - name: Cache Pico SDK
+        id: cache-pico-sdk
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.PICO_SDK_PATH }}
+          key: ${{ runner.os }}-${{ runner.arch }}-pico-sdk-${{ env.PICO_SDK_REF }}-tinyusb-${{ env.TINYUSB_REF }}
 
       - name: Download Pico SDK
+        if: steps.cache-pico-sdk.outputs.cache-hit != 'true'
         run: |
           git clone --depth 1 --branch "$PICO_SDK_REF" https://github.com/raspberrypi/pico-sdk.git "$PICO_SDK_PATH"
           git -C "$PICO_SDK_PATH" submodule update --init --recursive
@@ -51,14 +87,14 @@ jobs:
           mkdir -p artifacts
           cp build/standard/ds5-bridge.uf2 "artifacts/ds5-bridge-${{ github.event.release.tag_name }}.uf2"
 
-      - name: Build DSE firmware
+      - name: Build Debug firmware
         run: |
-          cmake -S . -B build/dse -G Ninja \
+          cmake -S . -B build/debug -G Ninja \
             -DCMAKE_BUILD_TYPE=Release \
             -DPICO_SDK_PATH="$PICO_SDK_PATH" \
-            -DENABLE_DSE=ON
+            -DENABLE_SERIAL=ON
-          cmake --build build/dse --target ds5-bridge
+          cmake --build build/debug --target ds5-bridge
-          cp build/dse/ds5-bridge.uf2 "artifacts/ds5-bridge-dse-${{ github.event.release.tag_name }}.uf2"
+          cp build/debug/ds5-bridge.uf2 "artifacts/ds5-bridge-debug-${{ github.event.release.tag_name }}.uf2"
 
       - name: Upload UF2 files to release
         env: