106 lines
3.1 KiB
Bash
Executable File
106 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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set -e
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CACHE_DIR="/build/cache"
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KERNEL_VERSION=$(cat /build/configs/kernel-version)
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echo "[+] Smart build with Docker layer caching..."
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# Function to check if we need to rebuild a stage
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needs_rebuild() {
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local stage="$1"
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local trigger_files="$2"
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local cache_marker="$CACHE_DIR/${stage}-marker"
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# If cache marker doesn't exist, rebuild
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if [ ! -f "$cache_marker" ]; then
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echo " $stage: No cache marker found, rebuild needed"
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return 0
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fi
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# Check if any trigger files are newer than cache marker
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for file in $trigger_files; do
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if [ -f "$file" ] && [ "$file" -nt "$cache_marker" ]; then
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echo " $stage: $file changed, rebuild needed"
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return 0
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fi
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done
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echo " $stage: Cache valid, skipping"
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return 1
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}
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# Function to mark stage as completed
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mark_completed() {
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local stage="$1"
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mkdir -p "$CACHE_DIR"
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touch "$CACHE_DIR/${stage}-marker"
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}
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echo " Checking cache status..."
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# Check each build stage
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REBUILD_COMPONENTS=false
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REBUILD_KERNEL=false
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REBUILD_INITRAMFS=false
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# Components need rebuild if:
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# - Component source repos have updates (we'll assume weekly refresh)
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# - compile-components.sh script changed
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if needs_rebuild "components" "/build/scripts/compile-components.sh"; then
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REBUILD_COMPONENTS=true
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fi
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# Kernel needs rebuild if:
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# - Kernel version changed
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# - Kernel config changed
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# - build-kernel.sh script changed
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if needs_rebuild "kernel" "/build/configs/kernel-version /build/configs/kernel-config-generic /build/scripts/build-kernel.sh"; then
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REBUILD_KERNEL=true
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fi
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# Initramfs always rebuilds (it's fast and contains user scripts)
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REBUILD_INITRAMFS=true
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echo ""
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echo " Build plan:"
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echo " Components: $([ "$REBUILD_COMPONENTS" = "true" ] && echo "REBUILD" || echo "CACHED")"
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echo " Kernel: $([ "$REBUILD_KERNEL" = "true" ] && echo "REBUILD" || echo "CACHED")"
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echo " Initramfs: REBUILD (always)"
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echo ""
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# Phase 1: Components (if needed)
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if [ "$REBUILD_COMPONENTS" = "true" ]; then
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echo "[+] Building Zero-OS components from source..."
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/build/scripts/compile-components.sh
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mark_completed "components"
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else
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echo "[+] Using cached Zero-OS components"
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fi
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# Phase 2: Kernel (if needed)
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if [ "$REBUILD_KERNEL" = "true" ]; then
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echo "[+] Building kernel ${KERNEL_VERSION}..."
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# Only download and build kernel, not embed initramfs yet
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/build/scripts/build-kernel.sh --kernel-only
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mark_completed "kernel"
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else
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echo "[+] Using cached kernel ${KERNEL_VERSION}"
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fi
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# Phase 3: Initramfs (always - fast)
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echo "[+] Installing Alpine packages..."
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/build/scripts/install-packages.sh
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echo "[+] Setting up initramfs structure..."
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/build/scripts/setup-initramfs.sh
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# Phase 4: Final kernel assembly (embed initramfs)
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echo "[+] Embedding initramfs into kernel..."
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/build/scripts/build-kernel.sh --embed-only
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echo ""
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echo "[+] Smart build completed!"
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echo " Components: $([ "$REBUILD_COMPONENTS" = "true" ] && echo "rebuilt" || echo "cached")"
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echo " Kernel: $([ "$REBUILD_KERNEL" = "true" ] && echo "rebuilt" || echo "cached")"
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echo " Total time saved by caching: significant!" |