From b2e465d6d32d2dc884f58b94acb7e35f671a87fe Mon Sep 17 00:00:00 2001
From: Arch Librarian <arch@canonical.com>
Date: Mon, 20 Sep 2004 16:56:32 +0000
Subject: Join with aliencode Author: jgg Date: 2001-02-20 07:03:16 GMT Join
 with aliencode

---
 debian/preinst | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100755 debian/preinst

(limited to 'debian/preinst')

diff --git a/debian/preinst b/debian/preinst
new file mode 100755
index 000000000..141db6e45
--- /dev/null
+++ b/debian/preinst
@@ -0,0 +1,28 @@
+#! /bin/sh
+
+# dpkg does this for us while we are upgrading..
+#if [ "$1" = "upgrade" -a -L /var/state/apt -a -e /var/lib/apt -a ! -L /var/state/apt ] && dpkg --compare-versions "$2" ">=" "0.4.10"; then
+#  rm /var/state/apt
+#fi
+
+if [ "$1" = "upgrade" -o "$1" = "install" -a "$2" != "" ]; then
+  if [ ! -e /var/lib/apt -a -e /var/state/apt ]; then
+    # upgrading from /var/state/apt using apt.
+    # it's probably running now so we want to ensure /var/state/apt
+    # is still valid afterwards. and since we're upgrading
+
+    if [ -x /usr/bin/perl -a -d /var/state/apt -a ! -L /var/state/apt ] &&
+      perl -e 'exit 1 if ((stat("/var/lib"))[0] != (stat("/var/state/apt"))[0])'
+    then
+      # same fs, we can mv it
+      mv /var/state/apt /var/lib/apt
+      ln -s ../lib/apt /var/state/apt
+      # note that this symlink (/var/state/apt) will be removed when
+      # dpkg finishes unpacking the apt we're about to install; this is okay
+    else
+      # scary, let's just symlink it and hope
+      ln -s /var/state/apt /var/lib/apt
+    fi
+  fi
+  touch /var/lib/apt/lists/partial/.delete-me-later || true
+fi
-- 
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