maint: add gen-tag-message.sh script

* maint/gen-tag-message.sh: New file.

1 files changed, 68 insertions, 0 deletions

diff --git a/maint/gen-tag-message.sh b/maint/gen-tag-message.sh
new file mode 100755
index 000000000..db7b8f2e0
--- /dev/null
+++ b/maint/gen-tag-message.sh
@@ -0,0 +1,68 @@
+#!/bin/sh -efu
+# Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+get_commit_id()
+{
+	git rev-parse --verify "$1^{commit}"
+}
+
+id="$(get_commit_id "${1:-@}")"
+
+tmpf=
+cleanup()
+{
+	trap - EXIT
+	[ -z "$tmpf" ] ||
+		rm -f -- "$tmpf"
+	exit "$@"
+}
+
+trap 'cleanup $?' EXIT
+trap 'cleanup 1' HUP PIPE INT QUIT TERM
+tmpf="$(mktemp -t "${0##*/}.XXXXXX")"
+
+git show "$id:NEWS" > "$tmpf"
+marker='^Noteworthy changes in release \([^ ]\+\) ([^)]\+)$'
+vers="$(sed -n "s/$marker/\\1/p;q" "$tmpf")"
+
+msg="NEWS for strace version $vers"
+sep="$(echo "$msg" |sed s/./=/g)"
+echo "$msg"
+echo "$sep"
+
+sed "0,/^$sep/d;/$marker/,\$d" "$tmpf"
+
+cat <<'__EOF__'
+Contributors
+============
+
+This release was made possible by the contributions of many people.
+The maintainers are grateful to everyone who has contributed
+changes or bug reports.  These include:
+
+__EOF__
+
+"$(dirname "$0")"/gen-contributors-list.sh