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#!/usr/bin/env bash
source $(dirname ${BASH_SOURCE[0]})/nix-utils.sh
profiledir=/nix/var/nix/profiles
usage() {
cat <<EOS >&2
$(help_synopsis "${BASH_SOURCE[0]}" "[--system | -s] [--user | -u] [-n] [-h]")
--system | -s | Show system profiles
--user | -u | Show user profiles
--system-profiles | -p | Show other system profiles
-n | Show only profile numbers
-h | Show this help and exit
Show the generations which are currently available for either the
current user (-u | --user) or the current system (-s | --system)
profile.
Per default, this shows the link name, if you pass -n it only shows
the numbers.
Example usage:
# To show the profile generations for the system generation, but
# only the numbers.
# With verbosity on.
nix-script -v ls-profiles -s -n
$(help_end "${BASH_SOURCE[0]}")
EOS
}
SYSTEM=0
USER=0
SYSPROF=0
NUMBERS=0
for arg
do
case $arg in
"--system" )
SYSTEM=1
;;
"-s" )
SYSTEM=1
;;
"-u" )
USER=1
;;
"--user" )
USER=1
USER_NAMES=$USER
;;
"--system-profiles" )
SYSPROF=1
;;
"-p" )
SYSPROF=1
;;
"-n" )
NUMBERS=1
;;
"-h" )
usage
exit 0
;;
"*")
;;
esac
done
(( $SYSTEM == 0 && $USER == 0 && $SYSPROF == 0 )) && usage && exit 1
numberfilter() {
pref="$1"
if (( $NUMBERS == 0 ))
then
cat
else
if (( ($SYSTEM != 0 && $USER != 0) ||
($SYSTEM != 0 && $SYSPROF != 0) ||
($USER != 0 && $SYSPROF != 0) ))
then
cut -d - -f 2 | sort -n | sed -r "s:^(.*):$pref\1:"
else
cut -d - -f 2 | sort -n
fi
fi
}
list() {
ls "$profiledir/$1" | grep -E "$2" | numberfilter "$3"
}
(( $SYSTEM == 1 )) && list "" "^system-.*-link" "system/"
if (( $USER == 1 ))
then
for u in $USER_NAMES;
do
list "per-user/$u" "^profile-.*-link" "user/$u/"
done
fi
if (( $SYSPROF == 1 ))
then
for entry in $(ls "$profiledir/system-profiles" | grep -v ".*-.*-link")
do
list "system-profiles/" "^$entry-.*-link" "system/$entry/"
done
fi
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