diff options
Diffstat (limited to 'system/nix/doinst.sh')
| -rw-r--r-- | system/nix/doinst.sh | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/system/nix/doinst.sh b/system/nix/doinst.sh new file mode 100644 index 0000000000..032197f9aa --- /dev/null +++ b/system/nix/doinst.sh @@ -0,0 +1,25 @@ +config() { + NEW="$1" + OLD="$(dirname $NEW)/$(basename $NEW .new)" + # If there's no config file by that name, mv it over: + if [ ! -r $OLD ]; then + mv $NEW $OLD + elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then + # toss the redundant copy + rm $NEW + fi + # Otherwise, we leave the .new copy for the admin to consider... +} + +preserve_perms() { + NEW="$1" + OLD="$(dirname $NEW)/$(basename $NEW .new)" + if [ -e $OLD ]; then + cp -a $OLD ${NEW}.incoming + cat $NEW > ${NEW}.incoming + mv ${NEW}.incoming $NEW + fi + config $NEW +} + +preserve_perms etc/rc.d/rc.nix.new |