Helper scripts for upgrading Bugzilla.

This was first used to upgrade to version 4.4.6.

README

+This README contains checklists for how we manage the Bugzilla
+installation at https://bugzilla.lysator.liu.se/.
+
+Upgrading Bugzilla
+==================
+
+The first few steps can be done on any computer with Git and
+pristine-tar installed.
+
+ * Clone the repo we use to keep Bugzilla, and this repo that contains
+   supporting scripts:
+
+    git clone git@git.lysator.liu.se:lysator/bugzilla.git
+    git clone git@git.lysator.liu.se:lysator/bugzilla-maint.git
+
+ * Download the new version:
+
+    wget http://ftp.mozilla.org/pub/mozilla.org/webtools/bugzilla-4.4.6.tar.gz
+
+ * Import the pristine release:
+
+    cd bugzilla
+    ../bugzilla-maint/import-upstream 4.4.6
+
+ * Check that the pristine-tar has managed to create a
+   reasonably-sized delta:
+
+    git checkout pristine-tar
+    ls -l
+
+   The delta for the new version should be similar in size to other
+   deltas of nearby versions.
+
+ * Merge the relese to the master branch.
+
+    git checkout master
+    git merge bugzilla-4.4.6
+
+ * Push all changes.
+
+    git push origin master
+    git push origin pristine-tar
+    git push origin release-4.4
+    git push origin bugzilla-4.4.6
+
+And, now that the preparations are done, do the actual upgrade.
+
+ * Run this:
+
+    ssh bugzilla.lysator.liu.se
+    su
+    cd /var/www/bugzilla
+    git fetch
+
+ * Shut down bugzilla, as explained in
+    http://www.bugzilla.org/docs/4.4/en/html/upgrade.html
+
+ * Run this:
+
+    git pull
+    ./checksetup.pl
+
+ * Enable buzilla again.

import-upstream

+#!/bin/sh
+
+if [ $# -ne 1 ]
+then
+    echo usage: $0 version >&2
+    exit 1
+fi
+
+version=$1
+series=`echo $version | sed 's/\.[0-9]*$//'` || exit
+tarfile=../bugzilla-$version.tar.gz
+
+if ! [ -f $tarfile ]
+then
+    echo missing $tarfile >&2
+    exit 1
+fi
+
+if [ -n "`git status --porcelain`" ]
+then
+    echo working tree not clean: >&2
+    git status
+    exit 1
+fi
+
+if ! git checkout release-$series
+then
+    echo Perhaps you need to create release-$series? >&2
+    exit 1
+fi
+
+if ! git pull --ff-only
+then
+    echo Failed to re-fetch the release-$series branch before import >&2
+    exit 1
+fi
+
+git rm -rf --ignore-unmatch . || exit 1
+git clean -d -f -x || exit 1
+tar --strip-components=1 -x -f $tarfile || exit 1
+git add -f -A -- . || exit 1
+git commit -m"Imported Bugzilla $version." || exit 1
+git tag bugzilla-$version || exit 1
+pristine-tar commit $tarfile bugzilla-$version || exit 1