[releng] add script for manual building of rebootstrap packages

[Dan Horák]

commit 6eb5376d0220b0f3965f294eb9e7980f80d44163
Author: Dan Horák <dan at danny.cz>
Date:   Fri Sep 26 08:10:08 2014 -0400

    add script for manual building of rebootstrap packages
    
    It was used in the second round (processing the revert back to original 2.18 ABI)
     of rebootstrap due the glibc ABI changes on s390 in F-21.

 scripts/misc/rebuild |   59 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 59 insertions(+), 0 deletions(-)
---
diff --git a/scripts/misc/rebuild b/scripts/misc/rebuild
new file mode 100755
index 0000000..3417079
--- /dev/null
+++ b/scripts/misc/rebuild
@@ -0,0 +1,59 @@
+#! /bin/sh
+#
+# Copyright (C) 2014 Red Hat, Inc.
+# SPDX-License-Identifier:      GPL-2.0+
+#
+# Authors:
+#	Dan Horák <dan at danny.cz>
+#
+# script to build re-bootstrap pkgs for eg. glibc ABI changes and
+# prepare substitution list for koji-shadow
+#
+# usage: rebuild [-d] [-b num] <pkg>
+# where:	-d	dry run, won't send the prepared srpm to koji
+#		-b num	how far in the git history we need to go
+#		pkg	package to build
+#
+# example: ./rebuild -b 2 perl-Sub-Identify
+#
+
+back=1
+dryrun=0
+
+TEMP=`getopt -o db: --long dry-run,back: -n 'rebuild' -- "$@"`
+if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
+
+# Note the quotes around `$TEMP': they are essential!
+eval set -- "$TEMP"
+
+while true ; do
+        case "$1" in
+                -d|--dry-run) dryrun=1 ; shift ;;
+                -b|--back) back=$2 ; shift 2 ;;
+                --) shift ; break ;;
+                *) echo "Internal error!" ; exit 1 ;;
+        esac
+done
+#echo "Remaining arguments:"
+for arg do pkg=$arg ; done
+
+echo "dryrun=$dryrun back=$back arg=$arg"
+#exit 0
+
+set -x
+
+[ -d $pkg ] && exit 2
+
+fedpkg co $pkg || exit 3
+pushd $pkg
+git checkout f21
+git reset --hard HEAD~$back
+old=$(fedpkg verrel)
+rpmdev-bumpspec -s dh. -c "rebuilt for glibc ABI change" $pkg.spec
+new=$(fedpkg verrel)
+fedpkg srpm
+[ $dryrun -eq 0 ] && s390-koji build --nowait f21-glibc $new.src.rpm
+
+popd
+
+[ $dryrun -eq 0 ] && { echo "pkg=$pkg old=$old new=$new" | tee -a subst-list ; }