1 files changed, 72 insertions, 0 deletions
diff --git a/lightdm.install b/lightdm.install
new file mode 100644
index 000000000000..ce36d4b27137
--- /dev/null
+++ b/lightdm.install
@@ -0,0 +1,72 @@
+# The UID and GID for the lightdm package in [community] is 620 (for whatever
+# reason), so we'll keep that
+
+post_install() {
+  if ! getent group lightdm >/dev/null; then
+    groupadd -g 620 lightdm
+  fi
+
+  if ! getent passwd lightdm >/dev/null; then
+    useradd -u 620 -c "Light Display Manager" -g lightdm -d /var/lib/lightdm -s /sbin/nologin lightdm
+  fi
+
+  if ! getent group nopasswdlogin >/dev/null; then
+    groupadd --system nopasswdlogin
+  fi
+
+  if [ ! -d /var/lib/lightdm ]; then
+    mkdir -p /var/lib/lightdm
+  fi
+
+  chown -R lightdm:lightdm /var/lib/lightdm
+  chmod -R 0750 /var/lib/lightdm
+
+  systemd-tmpfiles --create /usr/lib/tmpfiles.d/lightdm.conf
+}
+
+post_upgrade() {
+  if getent group lightdm >/dev/null; then
+    if [ "x$(id -g lightdm 2>/dev/null)" != "x620" ]; then
+      userdel lightdm &>/dev/null || :
+      groupdel lightdm &>/dev/null || :
+      groupadd -g 620 lightdm
+    fi
+  fi
+
+  if ! getent passwd lightdm >/dev/null; then
+    if [ "x$(id -u lightdm 2>/dev/null)" != "x620" ]; then
+      userdel lightdm &>/dev/null || :
+      useradd -u 620 -c "Light Display Manager" -g lightdm -d /var/lib/lightdm -s /sbin/nologin lightdm
+    fi
+  fi
+
+  chown -R lightdm:lightdm /var/lib/lightdm
+  chmod -R 0750 /var/lib/lightdm
+}
+
+post_remove() {
+  rm -f /etc/lightdm.conf
+
+  if [ -d /var/lib/lightdm ]; then
+    rm -r /var/lib/lightdm
+  fi
+
+  if [ -d /var/log/lightdm ]; then
+    rm -r /var/log/lightdm
+  fi  
+
+  if [ -d /var/cache/lightdm ]; then
+    rm -r /var/cache/lightdm
+  fi  
+
+  if [ -d /var/run/lightdm/authority ]; then
+    rm -r /var/run/lightdm/authority
+  fi  
+
+  if getent passwd lightdm >/dev/null; then
+    userdel -r -f lightdm
+  fi  
+  if getent group lightdm >/dev/null; then
+    groupdel lightdm
+  fi
+}