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#!/usr/bin/env sh
# Description: Backup nnn configuration
# - config dir content
# - environment config
# - shell functions and aliases
#
# Shell: POSIX compliant
# Author: Léo Villeveygoux
nnn_aliases="n nnn"
outdir="nnn-$(whoami)@$(hostname)"
outfile="${outdir}.tar.bz2"
shellname="$(basename "$SHELL")"
conffile="config.txt"
configdir="${XDG_CONFIG_HOME:-$HOME/.config}/nnn"
workdir="$PWD"
tempdir="$(mktemp -d)"
mkdir "$tempdir/$outdir"
if [ ! -d "$tempdir" ]; then
echo "Can't create work directory." >&2
exit 1
fi
cd "$tempdir/$outdir" || exit 1
# Backing up config dir content
cp -r "$configdir" . || exit 1
# Environment config
env | sed "s/'/'\\\\''/" |\
awk '/^NNN_/{print "export '\''"$0"'\''"}' > "$conffile"
# Shell functions/aliases
case "$shellname" in
bash)
for name in $nnn_aliases ; do
if [ "$(bash -ic "type -t $name")" = "function" ] ; then
bash -ic "type $name" | tail -n+2 >> "$conffile"
elif bash -ic "alias $name" >/dev/null 2>&1 ; then
bash -ic "alias $name" >> "$conffile"
fi
done
;;
zsh)
for name in $nnn_aliases ; do
if zsh -ic "functions $name" ; then
zsh -ic "functions $name" >> "$conffile"
elif zsh -ic "alias $name" ; then
echo alias "$(zsh -ic "alias $name")" >> "$conffile"
fi
done
;;
*)
echo "Unknown shell, skipping alias/function checking." >&2
;;
esac
cd .. || exit 1
printf "Saving as '%s' ... " "$workdir/$outfile"
tar caf "$workdir/$outfile" "$outdir" && echo "Done" || echo "Failed"
cd "$workdir" && rm -rf "$tempdir"
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