mirror_zfs/scripts/make_gitrev.sh
Matthew Ahrens da4f331b41 Make gitrev more reliable
In some build methods, the gitrev is unnecessarily set to "unknown".
We can improve this by changing the gitrev to use
`git describe --always --long --dirty`.

This gets the revision even when no tag matches (--always).  It prints
the hash even when it exactly matches a tag (--long).  And if there are
uncommitted changes, it appends "-dirty", rather than failing (--dirty).

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Thode <prometheanfire@gentoo.org>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #8034
2018-10-22 12:23:30 -07:00

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#!/bin/sh
#
# CDDL HEADER START
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
# CDDL HEADER END
#
# Copyright (c) 2018 by Delphix. All rights reserved.
# Copyright (c) 2018 by Matthew Thode. All rights reserved.
#
# Generate zfs_gitrev.h. Note that we need to do this for every
# invocation of `make`, including for incremental builds. Therefore we
# can't use a zfs_gitrev.h.in file which would be processed only when
# `configure` is run.
#
set -e -u
cleanup() {
ZFS_GIT_REV=${ZFS_GIT_REV:-"unknown"}
cat << EOF > "$(dirname "$0")"/../include/zfs_gitrev.h
#define ZFS_META_GITREV "${ZFS_GIT_REV}"
EOF
}
trap cleanup EXIT
# Check if git is installed and we are in a git repo.
git rev-parse --git-dir > /dev/null 2>&1
# Get the git current git revision
ZFS_GIT_REV=$(git describe --always --long --dirty 2>/dev/null)