name: change clang variables to ccache clang
description: change clang cariable to ccache clang

runs:
 using: composite
 steps:
  - name: change variables
    shell: bash
    run: |
      cd "$CONFIG"
      if [[ -d kernel_platform ]]; then
      cd kernel_platform
      touch .bazelrc
      cat >> .bazelrc << 'EOF'
      #build --disk_cache=${{ env.BCACHE_DIR }}
      build --sandbox_writable_path=${{ env.CCACHE_DIR }}
      build --action_env=CC="ccache clang"
      build --action_env=CXX="ccache clang++"
      build --action_env=HOSTCC="ccache clang"
      build --action_env=HOSTCXX="ccache clang++"
      EOF
      else
      touch .bazelrc
      cat >> .bazelrc << 'EOF'
      #build --disk_cache=${{ env.BCACHE_DIR }}
      build --sandbox_writable_path=${{ env.CCACHE_DIR }}
      build --action_env=CC="ccache clang"
      build --action_env=CXX="ccache clang++"
      build --action_env=HOSTCC="ccache clang"
      build --action_env=HOSTCXX="ccache clang++"
      EOF
      fi

  - name: wrap ccache clang in directory
    shell: bash
    run: |
      if [[ -d kernel_platform ]]; then
      #Find clang bin dir dynamically
      CLANG_BIN=$(find kernel_platform/prebuilts/clang/host/linux-x86 -type d -name bin | head -n 1)

      echo "Using clang bin at: $CLANG_BIN"

      # Wrap clang
      mv "$CLANG_BIN/clang" "$CLANG_BIN/clang.real"
      cat > "$CLANG_BIN/clang" << 'EOF'
      #!/bin/bash
      exec ccache "$(dirname "$0")/clang.real" "$@"
      EOF
      chmod +x "$CLANG_BIN/clang"

      # Wrap clang++
      mv "$CLANG_BIN/clang++" "$CLANG_BIN/clang++.real"
      cat > "$CLANG_BIN/clang++" << 'EOF'
      #!/bin/bash
      exec ccache "$(dirname "$0")/clang++.real" "$@"
      EOF
      chmod +x "$CLANG_BIN/clang++"
      fi