1 files changed, 45 insertions, 0 deletions
diff --git a/source/n/dovecot/doinst.sh b/source/n/dovecot/doinst.sh
new file mode 100644
index 000000000..dc2d5700b
--- /dev/null
+++ b/source/n/dovecot/doinst.sh
@@ -0,0 +1,45 @@
+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.dovecot.new
+
+for file in etc/dovecot/*.conf.new etc/dovecot/*.ext.new etc/dovecot/conf.d/*.conf.new etc/dovecot/conf.d/*.ext.new ; do
+  config $file
+done
+
+# Make sure that the dovecot user/group (UID 94, GID 94), and the
+# postdrop user/group (UID 65, GID 95) exist on this system:
+if ! grep -q "^dovecot:" etc/passwd ; then
+  echo "dovecot:x:94:94:User for Dovecot processes:/dev/null:/bin/false" >> etc/passwd
+fi
+if ! grep -q "^dovenull:" etc/passwd ; then
+  echo "dovenull:x:95:95:User for Dovecot login processing:/dev/null:/bin/false" >> etc/passwd
+fi
+if ! grep -q "^dovecot:" etc/group ; then
+  echo "dovecot:x:94:" >> etc/group
+fi
+if ! grep -q "^dovenull:" etc/group ; then
+  echo "dovenull:x:95:" >> etc/group
+fi
+