bruh
This commit is contained in:
mjallen18
@@ -0,0 +1,75 @@
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#! @bash@/bin/sh -e
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# shellcheck disable=SC3030,SC3043,SC3044,SC3054
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shopt -s nullglob
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export PATH=/empty:@path@
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usage() {
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echo "usage: $0 -c <path-to-configuration> [-d <destination-dir>] [-r]" >&2
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exit 1
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}
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generationPath= # Path to nixos configuration/generation
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target=/boot/firmware # Device tree files target directory
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while getopts "c:d:r" opt; do
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case "$opt" in
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c) generationPath="$OPTARG" ;;
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d) target="$OPTARG" ;;
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r) useVendorDeviceTree=1 ;;
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\?) usage ;;
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esac
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done
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# Copy a file from the Nix store to $target.
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declare -A filesCopied
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copyForced() {
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local src="$1"
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local dst="$2"
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local dstTmp="$dst.tmp.$$"
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cp "$src" "$dstTmp"
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mv "$dstTmp" "$dst"
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}
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echo "$0: $@"
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echo -n "installing device tree files: "
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# Device Tree
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if [ -n "$useVendorDeviceTree" ]; then
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echo -n "vendor firmware "
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dtb_path=@firmware@/share/raspberrypi/boot
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else
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echo -n "generation's kernel's "
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dtb_path=$(readlink -f "$generationPath/dtbs")
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fi
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echo "$dtb_path"
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# firmware package has dtbs in its root,
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# dtbs built with kernel are in broadcom/
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DTBS=("$dtb_path"/*.dtb "$dtb_path"/broadcom/*.dtb)
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for dtb in "${DTBS[@]}"; do
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dst="$target/$(basename "$dtb")"
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copyForced "$dtb" "$dst"
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filesCopied[$dst]=1
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done
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SRC_OVERLAYS=("$dtb_path/overlays"/*)
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mkdir -p "$target/overlays"
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for ovr in "${SRC_OVERLAYS[@]}"; do
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dst="$target/overlays/$(basename "$ovr")"
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copyForced "$ovr" "$dst"
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filesCopied[$dst]=1
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done
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# remove obsolete device tree files
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for fn in $target/*.dtb $target/overlays/*; do
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if ! test "${filesCopied[$fn]}" = 1; then
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rm -vf -- "$fn"
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fi
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done
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@@ -0,0 +1,66 @@
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#! @bash@/bin/sh -e
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# shellcheck disable=SC3030,SC3043,SC3044,SC3054
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shopt -s nullglob
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export PATH=/empty:@path@
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usage() {
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echo "usage: $0 -c <path-to-configuration> [-d <firmware-dir>]" >&2
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exit 1
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}
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generationPath= # Path to nixos configuration/generation
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target=/boot/firmware # Firmware target directory
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while getopts "c:d:" opt; do
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case "$opt" in
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c) generationPath="$OPTARG" ;;
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d) target="$OPTARG" ;;
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\?) usage ;;
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esac
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done
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# Copy a file from the Nix store to $target.
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declare -A filesCopied
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copyForced() {
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local src="$1"
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local dst="$2"
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local dstTmp="$dst.tmp.$$"
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cp "$src" "$dstTmp"
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mv "$dstTmp" "$dst"
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}
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# Add the firmware files
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# fwdir=@firmware@/share/raspberrypi/boot/
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SRC_FIRMWARE_DIR=@firmware@/share/raspberrypi/boot
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echo "copying raspberry pi firmware..."
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# Boot code
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STARTFILES=("$SRC_FIRMWARE_DIR"/start*.elf)
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BOOTCODE="$SRC_FIRMWARE_DIR/bootcode.bin"
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FIXUPS=("$SRC_FIRMWARE_DIR"/fixup*.dat)
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for SRC in "${STARTFILES[@]}" "$BOOTCODE" "${FIXUPS[@]}"; do
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dst="$target/$(basename "$SRC")"
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copyForced "$SRC" "$dst"
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filesCopied[$dst]=1
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done
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# remove obsolete firmware files
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for fn in $target/start*.elf $target/fixup*.dat; do
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if ! test "${filesCopied[$fn]}" = 1; then
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rm -vf -- "$fn"
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fi
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done
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echo "copying config.txt..."
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# Add the config.txt
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copyForced @configTxt@ "$target/config.txt"
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echo "raspberry pi firmware installed"
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@@ -0,0 +1,146 @@
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#! @bash@/bin/sh -e
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# shellcheck disable=SC3043,SC3044,SC3054
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shopt -s nullglob
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export PATH=/empty:@path@
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# used to track copied generations to decide which are obsolete
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# and need to be removed
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declare -A activeGenerations
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moveWBackup() {
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local src="$1"
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local dst="$2"
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# Backup $dst if already exists
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local dstBkp="$dst.bkp.$$"
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if [ -e "$dst" ]; then
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mv "$dst" "$dstBkp"
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fi
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# Move $src as "new" $dst
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mv "$src" "$dst"
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# Remove backup directory of the previous $dst
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rm -rf "$dstBkp"
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}
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# Copy generation's kernel, initrd, cmdline to `gensDir/generationName`.
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addEntry() {
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local generationPath="$1"
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local generationName="$2"
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local gensDir="$3"
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local dst="$gensDir/$generationName"
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echo "* nixos generation '$generationName' -> $dst"
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# Don't copy the files if $dst already exists, unless it's the default
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# configuration.
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# This means that we have to create $dst atomically to prevent partially
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# copied generations if this script is ever interrupted.
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#
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# For "default" generation: make backup and then replace with the new
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# "default", minimizing the time when where isn't any "default" generation
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# directory
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if ! [ -e $dst ] || [ "$generationName" = "default" ]; then
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local dstTmp="$dst.tmp.$$"
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mkdir -p "$dstTmp" || true
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@nixosGenBuilder@ -c "$generationPath" -n "$generationName" -d "$dstTmp"
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# Move new generation on its place, backing up the previous version
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# if it exists
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# This may only happen when "$generationName" = "default"
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moveWBackup "$dstTmp" "$dst"
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fi
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activeGenerations["$generationName"]=1
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}
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removeObsoleteGenerations() {
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local path="$1"
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echo "removing obsolete generations in $path..."
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for gen in $path/*; do
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if ! [ "${activeGenerations["$(basename "$gen")"]}" = 1 ]; then
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echo "* $gen is obsolete"
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rm -vrf "$gen"
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fi
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done
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}
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addAllEntries() {
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local defaultGenerationPath="$1"
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local outdir="$2"
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local numGenerations="$3"
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local gensDir="$outdir/@nixosGenerationsDir@"
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mkdir -p "$gensDir" || true
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# Add default generation
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addEntry "$defaultGenerationPath" default "$gensDir"
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if [ "$numGenerations" -gt 0 ]; then
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# Add up to $numGenerations generations of the system profile, in reverse
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# (most recent to least recent) order.
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for generation in $(
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(cd /nix/var/nix/profiles && ls -d system-*-link) \
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| sed 's/system-\([0-9]\+\)-link/\1/' \
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| sort -n -r \
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| head -n "$numGenerations"); do
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link=/nix/var/nix/profiles/system-$generation-link
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addEntry "$link" "${generation}-default" "$gensDir"
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for specialisation in $(
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ls /nix/var/nix/profiles/system-$generation-link/specialisation \
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| sort -n -r); do
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link=/nix/var/nix/profiles/system-$generation-link/specialisation/$specialisation
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addEntry "$link" "${generation}-${specialisation}" "$gensDir"
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done
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done
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fi
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removeObsoleteGenerations "$gensDir"
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}
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usage() {
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echo "usage: $0 -c <path-to-default-configuration> [-b <boot-dir>] [-g <num-generations>]" >&2
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exit 1
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}
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default= # Default configuration
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numGenerations=0 # Number of other generations to keep (kernel, initrd, DTBs, overlays)
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echo "$0: $@"
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while getopts "c:b:g:f:" opt; do
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case "$opt" in
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c) default="$OPTARG" ;;
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b) boottarget="$OPTARG" ;;
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g) numGenerations="$OPTARG" ;;
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f) fwtarget="$OPTARG" ;;
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\?) usage ;;
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esac
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done
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if [ -z "$boottarget" ] && [ -z "$fwtarget" ]; then
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echo "Error: at least one of \`-b <boot-dir>\` and \`-f <firmware-dir>\` must be set"
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usage
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fi
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if [ -n "$fwtarget" ]; then
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echo "installing nixos-generation-independent firmware..."
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@installFirmwareBuilder@ -c "$default" -d "$fwtarget"
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echo "installing nixos generations..."
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addAllEntries "$default" "$fwtarget" "$numGenerations"
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fi
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if [ -n "$boottarget" ]; then
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echo "'-b $boottarget' isn't used when loading the kernel directly with \`kernel\`: "\
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"kernels are copied directly to <firmware-dir>"
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exit 0
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fi
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echo "generational bootloader installed"
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