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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 09:40:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 09:40:32 +0000
commit76faa357888fc7ac8697e12f151f70fd7227a978 (patch)
tree5cfd018ebeb537a499caa021a008c6e51cc22d73 /debian/dpkg.cron.daily
parentAdding upstream version 1.20.13. (diff)
downloaddpkg-debian.tar.xz
dpkg-debian.zip
Adding debian version 1.20.13.debian/1.20.13debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--debian/dpkg.cron.daily42
1 files changed, 42 insertions, 0 deletions
diff --git a/debian/dpkg.cron.daily b/debian/dpkg.cron.daily
new file mode 100644
index 0000000..11124f7
--- /dev/null
+++ b/debian/dpkg.cron.daily
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+dbdir=/var/lib/dpkg
+
+# Backup the 7 last versions of dpkg databases containing user data.
+if cd /var/backups ; then
+ # We backup all relevant database files if any has changed, so that
+ # the rotation number always contains an internally consistent set.
+ dbchanged=no
+ dbfiles="arch status diversions statoverride"
+ for db in $dbfiles ; do
+ if ! [ -s "dpkg.${db}.0" ] && ! [ -s "$dbdir/$db" ]; then
+ # Special case the files not existing or being empty as being equal.
+ continue
+ elif ! cmp -s "dpkg.${db}.0" "$dbdir/$db"; then
+ dbchanged=yes
+ break
+ fi
+ done
+ if [ "$dbchanged" = "yes" ] ; then
+ for db in $dbfiles ; do
+ if [ -e "$dbdir/$db" ]; then
+ cp -p "$dbdir/$db" "dpkg.$db"
+ else
+ touch "dpkg.$db"
+ fi
+ savelog -c 7 "dpkg.$db" >/dev/null
+ done
+ fi
+
+ # The alternatives database is independent from the dpkg database.
+ dbalt=alternatives
+
+ # 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 ||
+ ! tar -df ${dbalt}.tar.0 -C $dbdir $dbalt >/dev/null 2>&1 ;
+ then
+ tar -cf ${dbalt}.tar -C $dbdir $dbalt >/dev/null 2>&1
+ savelog -c 7 ${dbalt}.tar >/dev/null
+ fi
+fi