install/purge compat change, graceful exit

[ifupdown2.git] / debian / patches / pve / 0010-postinst-rm-update-network-config-compatibility.patch

From e93b858e2c6d46f3c7166f8b980518457e7f2e65 Mon Sep 17 00:00:00 2001
From: Alexandre Derumier <aderumier@odiso.com>
Date: Fri, 21 Feb 2020 10:01:59 +0100
Subject: [PATCH] postinst/rm : update network config compatibility

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
---
 debian/ifupdown2.postinst | 19 +++++++++++++++++++
 debian/ifupdown2.postrm   | 19 +++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/debian/ifupdown2.postinst b/debian/ifupdown2.postinst
index 3689256..4b628e1 100644
--- a/debian/ifupdown2.postinst
+++ b/debian/ifupdown2.postinst
@@ -85,6 +85,24 @@ postinst_remove_diverts()
     _postinst_remove_diverts "/usr/share/man/man5/interfaces.5.gz"
 }
 
+proxmox_compatibility()
+{
+    perl -e '
+	use PVE::INotify;
+	my $config = PVE::INotify::read_file('interfaces', 1);
+	my $configdata = $config->{data};
+
+	PVE::INotify::write_file('interfaces', $configdata);
+
+	$config = PVE::INotify::read_file('interfaces', 1);
+
+	if (defined($config->{changes})) {
+	    print $config->{changes};
+	    print "network config changes has been detected for ifupdown2 compatibility and generated in /etc/network/interfaces.new\n";
+	}
+    ' || true
+}
+
 case "$1" in
     configure)
         fix_dhclient_file_with_space
@@ -92,6 +110,7 @@ case "$1" in
         process_udev
         chmod +x /usr/share/ifupdown2/__main__.py
         postinst_remove_diverts
+        proxmox_compatibility
     ;;
 
     abort-upgrade|abort-remove|abort-deconfigure)
diff --git a/debian/ifupdown2.postrm b/debian/ifupdown2.postrm
index 5d90b21..bab3dd0 100644
--- a/debian/ifupdown2.postrm
+++ b/debian/ifupdown2.postrm
@@ -25,10 +25,29 @@ process_udev()
     fi
 }
 
+proxmox_compatibility()
+{
+    perl -e '
+        use PVE::INotify;
+        my $config = PVE::INotify::read_file('interfaces', 1);
+        my $configdata = $config->{data};
+
+        PVE::INotify::write_file('interfaces', $configdata);
+
+        $config = PVE::INotify::read_file('interfaces', 1);
+
+        if (defined($config->{changes})) {
+            print $config->{changes};
+            print "network config changes has been detected for ifupdown1 compatibility and generated in /etc/network/interfaces.new\n";
+        }
+    ' || true
+}
+
 case "$1" in
     purge|remove|abort-install|disappear)
         process_state_file
         process_udev
+        proxmox_compatibility
     ;;
 
     upgrade|failed-upgrade|abort-upgrade|disappear)
-- 
2.20.1