Change z-push to use the git repository instead of the tar ball (#1305)

CHANGELOG.md

@@ -16,6 +16,7 @@ Mail:
 Installer:
 
 * We now run `apt-get autoremove` at the start of setup to clear out old packages, especially old kernels that take up a lot of space. On the first run, this step may take a long time.
+* We now fetch z-push from their tagged git repository
 
 v0.25 (November 15, 2017)
 -------------------------

setup/zpush.sh

@@ -22,27 +22,27 @@ apt_install \
 phpenmod -v php7.0 imap
 
 # Copy Z-Push into place.
-TARGETHASH=aae5093212ac0b7d8bf2d79fd5b87ca5bbf091cb
 VERSION=2.3.8
 needs_update=0 #NODOC
 if [ ! -f /usr/local/lib/z-push/version ]; then
 	needs_update=1 #NODOC
-elif [[ $TARGETHASH != `cat /usr/local/lib/z-push/version` ]]; then
+elif [[ $VERSION != `cat /usr/local/lib/z-push/version` ]]; then
 	# checks if the version
 	needs_update=1 #NODOC
 fi
 if [ $needs_update == 1 ]; then
-	wget_verify http://download.z-push.org/final/2.3/z-push-$VERSION.tar.gz $TARGETHASH /tmp/z-push.tar.gz
-
 	rm -rf /usr/local/lib/z-push
-	tar -xzf /tmp/z-push.tar.gz -C /usr/local/lib/
-	rm /tmp/z-push.tar.gz
-	mv /usr/local/lib/z-push-$VERSION /usr/local/lib/z-push
+
+	git_clone https://stash.z-hub.io/scm/zp/z-push.git $VERSION '' /tmp/z-push
+
+	mkdir /usr/local/lib/z-push
+	cp -r /tmp/z-push/src/* /usr/local/lib/z-push
+	rm -rf /tmp/z-push
 
 	rm -f /usr/sbin/z-push-{admin,top}
 	ln -s /usr/local/lib/z-push/z-push-admin.php /usr/sbin/z-push-admin
 	ln -s /usr/local/lib/z-push/z-push-top.php /usr/sbin/z-push-top
-	echo $TARGETHASH > /usr/local/lib/z-push/version
+	echo $VERSION > /usr/local/lib/z-push/version
 fi
 
 # Configure default config.