From: Matthias Kruk <m@m10k.eu>
Date: Sat, 22 Jan 2022 07:48:46 +0000 (+0900)
Subject: debian: Don't create/remove groups during upgrades/downgrades
X-Git-Url: https://git.corax.cc/?a=commitdiff_plain;h=2fcf5a7dee7a5f41e10e959646c7201933fb217e;p=toolbox

debian: Don't create/remove groups during upgrades/downgrades

The debian maintainer scripts remove and create group during upgrades
and downgrades, causing the group ids to change, locking users out of
/var/lib/toolbox.

This commit modifies the debian maintainer scripts so that they only
remove groups during package removals.
---

diff --git a/debian/postinst b/debian/postinst
index 98ed2e4..154bcad 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -1,6 +1,13 @@
 #!/bin/sh
 
 main() {
+	action="$1"
+
+	# only add groups and stat overrides when installing
+	if [ "$action" != "configure" ]; then
+		return 0
+	fi
+
 	# If a group exists, there is a chance that the user
 	# has customized directory ownership and permissions,
 	# so we don't change it.
diff --git a/debian/postrm b/debian/postrm
index c8c707e..6403e9e 100755
--- a/debian/postrm
+++ b/debian/postrm
@@ -1,6 +1,13 @@
 #!/bin/sh
 
 main() {
+	action="$1"
+
+	# don't remove stat overrides if not uninstalling
+	if [ "$action" != "remove" ]; then
+		return 0
+	fi
+
 	if dpkg-statoverride --list /var/lib/toolbox/ipc >/dev/null 2>&1; then
 		dpkg-statoverride --remove /var/lib/toolbox/ipc
 	fi