slackbuilds_ponce/network/etherpad-lite/doinst.sh
Robby Workman b2b78b8bc2 network/etherpad-lite: Don't clobber system configs/logs on upgrade
This commit creates if needed (otherwise, updates timestamps on)
the log files during package install as opposed to creating them
inside the package itself - if they're present inside the package,
then a package upgrade clobbers the files on the installed system
if they happen to already exist.

This commit also installs the init script and a couple of config
files with .new extensions and then does the config() routine on
them (or preserve_perms() in the case of the init script).

The downside is that this will cause any .new'd files *and* the
logs to be removed on this upgrade; I hope this doesn't cause
much pain for users, but it's got to happen sooner or later,
so let's get it over with...

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>
2013-02-24 13:25:01 -06:00

30 lines
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Bash

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 $NEW
}
preserve_perms etc/rc.d/rc.etherpad-lite.new
config etc/etherpad-lite/settings.json.new
touch var/log/$PRGNAM/etherpad.log
touch var/log/$PRGNAM/error.log