feat: refactor github build steps

.github/actions/prepare-deps/action.yml

@@ -20,8 +20,28 @@ runs:
     # https://github.com/actions/runner-images/issues/709
     - name: ♻️ Free up disk space
       run: |
+        echo "🚧 Starting cleanup operations..."
+        echo "🤖 Deleting Boost..."
         sudo rm -rf "/usr/local/share/boost"
+
+        echo "🤖 Deleting Android SDKs... Beep boop, bye-bye!"
+        sudo rm -rf /usr/local/lib/android
+
+        echo "🗑️  Tossing .NET..."
+        sudo rm -rf /usr/share/dotnet
+
+        echo "🧙‍♂️ Vanishing Haskell..."
+        sudo rm -rf /opt/ghc
+
+        echo "🔍 Losing CodeQL..."
+        sudo rm -rf /opt/codeql
+
+        echo "🛠️  Emptying the Tool Cache... (We don't need no tools!)"
         sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+
+        # Check space
+        echo "🚀 Space freed! Let's see how much room for activities we have:"
+        df -h
       shell: bash
 
     - name: 🔧 Install tools
@@ -37,18 +57,18 @@ runs:
       run: echo "TZ=UTC" >> $GITHUB_ENV
       shell: bash
 
-    # We want to cache the build for a week, so we include the date (year and week) in the version.
+    # We want to cache the build once per day, so we include the date in the version.
     - name: 🧱 Generate Cache Version
       run: |
-        CACHE_VERSION=${{ runner.os }}-$(date +%Y-%V)-webrtc
+        CACHE_VERSION=${{ runner.os }}-$(date +%Y-%V-%D)-webrtc
         echo "CACHE_VERSION=$CACHE_VERSION" >> $GITHUB_ENV
       shell: bash
 
     # Caches are TTL'd to 7 days after last access.
     # https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/caching-dependencies-to-speed-up-workflows#usage-limits-and-eviction-policy
     - name: 📦 Cache WebRTC build
       id: cache-webrtc
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: webrtc-checkout
         key: ${{ env.CACHE_VERSION }}
@@ -59,29 +79,3 @@ runs:
         git clone --depth 1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
         echo "$(pwd)/depot_tools" >> $GITHUB_PATH
       shell: bash
-
-    - name: 📡 Fetch and build WebRTC
-      if: ${{ steps.cache-webrtc.outputs.cache-hit != 'true' }}
-      run: |
-        mkdir webrtc-checkout
-        pushd webrtc-checkout
-        fetch --nohooks webrtc
-        pushd src
-        git checkout b00c469cad3f8c926fcf81ded90b90b6e1e62b9c
-        popd
-        sed -i -e "s|'src/resources'],|'src/resources'],'condition':'rtc_include_tests==true',|" src/DEPS
-        gclient sync
-        pushd src
-        gn gen out/Default --args='is_debug=false use_custom_libcxx=false rtc_include_tests=false rtc_build_examples=false dcheck_always_on=true rtc_use_x11=false use_rtti=true'
-        ninja -C out/Default
-        popd
-        mv src webrtc
-        pushd webrtc
-        # Delete all unnecessary files, maintaining directory structure. Required to conserve Github
-        # runner disk space.
-        find . -type f ! -name "libwebrtc.a" ! -name "*.h" ! -path "*/boringssl/src/*" -delete
-        # Housekeeping: delete empty directories.
-        find . -type d -empty -delete
-        popd
-        popd
-      shell: bash

.github/workflows/main.yml

@@ -33,13 +33,19 @@ jobs:
       - name: 📦 Prepare dependencies
         uses: ./.github/actions/prepare-deps
 
-      - name: 🚧 Build
+      - name: 🕸️ Build Web
         run: |
-          sed -i -e 's|webrtc_path = ".*"|webrtc_path = "${{ github.workspace }}/webrtc-checkout/"|g' WORKSPACE
-          # Don't `build ...`, as includes irrelevant targets in `webrtc-checkout`.
-          bazel-7.4.1 build cpp/...
           bazel-7.4.1 build web/...
 
-      - name: 🔍 Test
+      - name: 🔧 Make build script executable
+        run: chmod +x cpp/build.sh
+
+      - name: 🚧 Build C++ (No Cache Hit)
+        if: ${{ steps.cache-webrtc.outputs.cache-hit != 'true' }}
+        run: |
+          cd cpp && ./build.sh --cached_webrtc=false
+
+      - name: 🚧 Build C++ (Cache Hit)
+        if: ${{ steps.cache-webrtc.outputs.cache-hit == 'true' }}
         run: |
-          bazel-7.4.1 test cpp/...
+          cd cpp && ./build.sh --cached_webrtc=true

cpp/build.sh

@@ -24,9 +24,41 @@ WEBRTC_SRC="$WEBRTC_DIR/src"
 CURRENT_DIR=$(pwd)
 # ---------------------
 
+# --- Argument Parsing ---
+CACHED_WEBRTC=0
+NINJA_ARGS=()
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --cached_webrtc=*)
+      # Handle explicit value (e.g., --cached_webrtc=true)
+      VAL="${1#*=}"
+      if [[ "$VAL" == "true" ]]; then
+        CACHED_WEBRTC=1
+      else
+        CACHED_WEBRTC=0
+      fi
+      shift
+      ;;
+    --cached_webrtc)
+      # Handle standalone flag (treat as true)
+      CACHED_WEBRTC=1
+      shift
+      ;;
+    *)
+      # Collect unknown args to pass to Ninja
+      NINJA_ARGS+=("$1")
+      shift
+      ;;
+  esac
+done
+# ---------------------
+
 echo -e "\033[1;36m🔍  [1/5] Scanning for WebRTC Universe...\033[0m"
 
-if [ ! -d "$WEBRTC_SRC" ]; then
+if [ "$CACHED_WEBRTC" -eq 1 ]; then
+    echo -e "\033[1;33m    ⏩  Skipping WebRTC checkout: --cached_webrtc specified.\033[0m"
+elif [ ! -d "$WEBRTC_SRC" ]; then
     echo -e "\033[1;33m    ⚠️  WebRTC checkout not found. Initializing auto-fetch sequence...\033[0m"
 
     # Check for depot_tools first
@@ -44,14 +76,24 @@ if [ ! -d "$WEBRTC_SRC" ]; then
     fetch --nohooks webrtc
 
     echo -e "\033[1;34m    🔄  Syncing dependencies...\033[0m"
-    gclient sync
+    gclient sync --nohooks --with_branch_heads --no-history --shallow
 
     popd > /dev/null
     echo -e "\033[1;32m    ✅  WebRTC Universe created successfully.\033[0m"
 else
     echo -e "\033[1;32m    ✅  Found existing WebRTC checkout.\033[0m"
 fi
 
+echo -e "\033[1;36m🏗️   [1.5/5] Hydrating Dependencies (Sysroot & Clang)...\033[0m"
+pushd "$WEBRTC_SRC" > /dev/null
+    echo -e "\033[1;34m    🐧  Installing Debian Sysroot...\033[0m"
+    python3 build/linux/sysroot_scripts/install-sysroot.py --arch=amd64
+
+    echo -e "\033[1;34m    🔨  Installing Clang Compiler...\033[0m"
+    python3 tools/clang/scripts/update.py
+popd > /dev/null
+echo -e "\033[1;32m    ✅  Build environment hydrated.\033[0m"
+
 echo -e "\033[1;36m💉  [2/5] Injecting your code into the matrix...\033[0m"
 # Clean replace of the destination folder
 rm -rf "$WEBRTC_SRC/$MODULE_NAME"
@@ -107,7 +149,7 @@ if [ ! -f "$WEBRTC_SRC/out/Default/build.ninja" ]; then
 fi
 
 echo -e "\033[1;36m🔨  [5/5] Compiling... (Grab a coffee ☕)\033[0m"
-ninja -C "$WEBRTC_SRC/out/Default" "$MODULE_NAME:$TARGET_NAME" "$@"
+ninja -C "$WEBRTC_SRC/out/Default" "$MODULE_NAME:$TARGET_NAME" "${NINJA_ARGS[@]}"
 
 echo -e "\033[1;35m==================================================\033[0m"
 echo -e "\033[1;32m🎉  BUILD SUCCESS! You are ready to rock. 🎸\033[0m"