mirror of
https://github.com/NixOS/nixos-hardware
synced 2025-01-14 21:09:46 +01:00
77 lines
2 KiB
Bash
77 lines
2 KiB
Bash
#! @bash@/bin/sh -e
|
|
|
|
shopt -s nullglob
|
|
|
|
export PATH=/empty
|
|
for i in @path@; do PATH=$PATH:$i/bin; done
|
|
|
|
usage() {
|
|
echo "usage: $0 -c <path-to-default-configuration> -n <dtbName> [-g <num-generations>] [-d <target>]" >&2
|
|
exit 1
|
|
}
|
|
|
|
target=/kboot.conf
|
|
default= # Default configuration
|
|
numGenerations=0 # Number of other generations to include in the menu
|
|
|
|
while getopts "t:c:d:g:n:" opt; do
|
|
case "$opt" in
|
|
c) default="$OPTARG" ;;
|
|
g) numGenerations="$OPTARG" ;;
|
|
d) target="$OPTARG" ;;
|
|
n) dtbName="$OPTARG" ;;
|
|
\?) usage ;;
|
|
esac
|
|
done
|
|
|
|
[ "$default" = "" -o "$dtbName" = "" ] && usage
|
|
|
|
tmp=$target.tmp
|
|
|
|
# Echo out an kboot.conf menu entry
|
|
addEntry() {
|
|
local path=$(readlink -f "$1")
|
|
local tag="$2" # Generation number or 'default'
|
|
|
|
if ! test -e $path/kernel -a -e $path/initrd; then
|
|
return
|
|
fi
|
|
|
|
timestampEpoch=$(stat -L -c '%Z' $path)
|
|
timestamp=$(date "+%Y-%m-%d %H:%M" -d @$timestampEpoch)
|
|
nixosLabel="$(cat $path/nixos-version)"
|
|
extraParams="$(cat $path/kernel-params)"
|
|
|
|
local kernel=$(readlink -f "$path/kernel")
|
|
local initrd=$(readlink -f "$path/initrd")
|
|
local dtbs=$(readlink -f "$path/dtbs")
|
|
|
|
local id="nixos-$tag--$nixosLabel"
|
|
|
|
if [ "$tag" = "default" ]; then
|
|
echo "default=$id"
|
|
fi
|
|
|
|
echo -n "$id='"
|
|
echo -n "$kernel initrd=$initrd dtb=$dtbs/$dtbName "
|
|
echo -n "systemConfig=$path init=$path/init $extraParams"
|
|
echo "'"
|
|
}
|
|
|
|
echo "# Hola!" > $tmp
|
|
addEntry $default default >> $tmp
|
|
|
|
if [ "$numGenerations" -gt 0 ]; then
|
|
# Add up to $numGenerations generations of the system profile to the menu,
|
|
# in reverse (most recent to least recent) order.
|
|
for generation in $(
|
|
(cd /nix/var/nix/profiles && ls -d system-*-link) \
|
|
| sed 's/system-\([0-9]\+\)-link/\1/' \
|
|
| sort -n -r \
|
|
| head -n $numGenerations); do
|
|
link=/nix/var/nix/profiles/system-$generation-link
|
|
addEntry $link $generation
|
|
done >> $tmp
|
|
fi
|
|
|
|
mv -f $tmp $target
|