[Piuparts-commits] [piuparts] 01/01: post_setup_zz_backports: improve systemd/udev handling for jessie-backports

[Holger Levsen]

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holger pushed a commit to branch develop
in repository piuparts.

commit ca96084389a1d9ad39f4aa704bb3c8c4bd9bef57
Author: Andreas Beckmann <anbe at debian.org>
Date:   Wed Mar 22 14:47:07 2017 +0100

    post_setup_zz_backports: improve systemd/udev handling for jessie-backports
    
    upgrade systemd+udev to jessie-backports in the reference chroot, to
    avoid downgrading them to the jessie versions during restore_selections()
    
    Signed-off-by: Andreas Beckmann <anbe at debian.org>
    Signed-off-by: Holger Levsen <holger at layer-acht.org>
---
 custom-scripts/scripts/post_setup_zz_backports | 23 +++++++++++++++++++++++
 debian/changelog                               |  2 ++
 2 files changed, 25 insertions(+)

diff --git a/custom-scripts/scripts/post_setup_zz_backports b/custom-scripts/scripts/post_setup_zz_backports
new file mode 100755
index 0000000..00872e6
--- /dev/null
+++ b/custom-scripts/scripts/post_setup_zz_backports
@@ -0,0 +1,23 @@
+#!/bin/sh
+set -e
+
+is_installed()
+{
+	local pkg="$1"
+	dpkg-query -s "$pkg" >/dev/null 2>&1 || return 1
+	local status="$(dpkg-query -W -f '${Status}' $pkg)"
+	test "$status" != "unknown ok not-installed" || return 1
+	test "$status" != "deinstall ok config-files" || return 1
+	return 0
+}
+
+PKGS=""
+
+if [ "$PIUPARTS_DISTRIBUTION" = "jessie-backports" ]; then
+	! is_installed systemd || PKGS="${PKGS} systemd"
+	! is_installed udev || PKGS="${PKGS} udev"
+fi
+
+if [ -n "$PKGS" ]; then
+	apt-get -y -t "$PIUPARTS_DISTRIBUTION" install $PKGS
+fi
diff --git a/debian/changelog b/debian/changelog
index bc80673..273e703 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -30,6 +30,8 @@ piuparts (0.77) UNRELEASED; urgency=medium
       once per month.
   * custom-scripts: Check for dummy package "TARBALL" to detect tarball
     creation phase.
+  * scripts/post_setup_zz_backports: Avoid downgrading systemd/udev from
+    jessie-backports to jessie during removal phase.  (Closes: #856845)
   * master-bin/detect_archive_issues:
     - Look at failed logs older than 24 hours (48 hours previously).
     - Mark logfiles for immediate recycling upon first appearance.

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