[dpkg] 142/192: debian: Remove ancient code recompressing alternatives database backups

[Ximin Luo]

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infinity0 pushed a commit to branch pu/reproducible_builds
in repository dpkg.

commit 6f4209e478c76f96b49def24e83db88ed88395d4
Author: Guillem Jover <guillem at debian.org>
Date:   Sun Sep 24 18:16:10 2017 +0200

    debian: Remove ancient code recompressing alternatives database backups
    
    The code converted the backups from xz to gzip in the dpkg daily cron
    job due to a short-lived change that compressed the database backups
    in xz.
---
 debian/changelog       |  2 ++
 debian/dpkg.cron.daily | 11 -----------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index 766dbd0..5c135ea 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -127,6 +127,8 @@ dpkg (1.19.0) UNRELEASED; urgency=medium
     - Switch to debhelper compatibility level 10.
     - Split alternatives logrotate into its own configuration file to help
       downstreams and derivatives.
+    - Remove ancient code recompressing the alternatives database backups
+      from xz to gzip in the dpkg daily cron job.
   * Test suite:
     - Enable perlcritic Documentation::RequirePodSections and
       Miscellanea::ProhibitTies.
diff --git a/debian/dpkg.cron.daily b/debian/dpkg.cron.daily
index c0aefb8..0a6b05e 100644
--- a/debian/dpkg.cron.daily
+++ b/debian/dpkg.cron.daily
@@ -25,17 +25,6 @@ if cd /var/backups ; then
     # The alternatives database is independent from the dpkg database.
     dbalt=alternatives
 
-    # Switch the alternatives database backups from xz to gzip, as the latter
-    # is Essential and we can rely on it being always present, using xz here
-    # is not worth the trouble, disk space savings, or possible additional
-    # dependencies.
-    for dbseq in `seq 1 6` ; do
-        dbfile=${dbalt}.tar.${dbseq}
-        [ -e "${dbfile}.xz" ] || continue
-        unxz ${dbfile}.xz
-        gzip -9 $dbfile
-    done
-
     # XXX: Ideally we'd use --warning=none instead of discarding stderr, but
     # as of GNU tar 1.27.1, it does not seem to work reliably (see #749307).
     if ! test -e ${dbalt}.tar.0 ||

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