1#!/bin/sh
 
  2#
  3# This scripts adds local version information from the version
  4# control systems git, mercurial (hg) and subversion (svn).
  5#
  6# If something goes wrong, send a mail the kernel build mailinglist
  7# (see MAINTAINERS) and CC Nico Schottelius
  8# <nico-linuxsetlocalversion -at- schottelius.org>.
  9#
 10#
 11
 12usage() {
 13	echo "Usage: $0 [--save-scmversion] [srctree]" >&2
 14	exit 1
 15}
 16
 17scm_only=false
 18srctree=.
 19if test "$1" = "--save-scmversion"; then
 20	scm_only=true
 21	shift
 22fi
 
 
 23if test $# -gt 0; then
 24	srctree=$1
 25	shift
 26fi
 27if test $# -gt 0 -o ! -d "$srctree"; then
 28	usage
 29fi
 30
 31scm_version()
 32{
 33	local short
 34	short=false
 
 
 
 
 
 
 
 
 
 
 
 
 35
 36	cd "$srctree"
 37	if test -e .scmversion; then
 38		cat .scmversion
 39		return
 40	fi
 41	if test "$1" = "--short"; then
 42		short=true
 43	fi
 44
 45	# Check for git and a git repo.
 46	if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
 47	   head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
 48
 49		# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
 50		# it, because this version is defined in the top level Makefile.
 51		if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
 52
 53			# If only the short version is requested, don't bother
 54			# running further git commands
 55			if $short; then
 56				echo "+"
 57				return
 58			fi
 59			# If we are past a tagged commit (like
 60			# "v2.6.30-rc5-302-g72357d5"), we pretty print it.
 61			if atag="`git describe 2>/dev/null`"; then
 62				echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
 63
 64			# If we don't have a tag at all we print -g{commitish}.
 65			else
 66				printf '%s%s' -g $head
 67			fi
 68		fi
 69
 70		# Is this git on svn?
 71		if git config --get svn-remote.svn.url >/dev/null; then
 72			printf -- '-svn%s' "`git svn find-rev $head`"
 73		fi
 74
 75		# Check for uncommitted changes
 76		if git diff-index --name-only HEAD | grep -qv "^scripts/package"; then
 77			printf '%s' -dirty
 78		fi
 79
 80		# All done with git
 81		return
 82	fi
 83
 84	# Check for mercurial and a mercurial repo.
 85	if test -d .hg && hgid=`hg id 2>/dev/null`; then
 86		# Do we have an tagged version?  If so, latesttagdistance == 1
 87		if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then
 88			id=`hg log -r . --template '{latesttag}'`
 89			printf '%s%s' -hg "$id"
 90		else
 91			tag=`printf '%s' "$hgid" | cut -d' ' -f2`
 92			if [ -z "$tag" -o "$tag" = tip ]; then
 93				id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
 94				printf '%s%s' -hg "$id"
 95			fi
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 96		fi
 97
 98		# Are there uncommitted changes?
 99		# These are represented by + after the changeset id.
100		case "$hgid" in
101			*+|*+\ *) printf '%s' -dirty ;;
102		esac
103
104		# All done with mercurial
105		return
106	fi
107
108	# Check for svn and a svn repo.
109	if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then
110		rev=`echo $rev | awk '{print $NF}'`
111		printf -- '-svn%s' "$rev"
112
113		# All done with svn
114		return
 
 
 
 
 
 
 
 
115	fi
116}
117
118collect_files()
119{
120	local file res
121
122	for file; do
123		case "$file" in
124		*\~*)
125			continue
126			;;
127		esac
128		if test -e "$file"; then
129			res="$res$(cat "$file")"
130		fi
131	done
132	echo "$res"
133}
134
135if $scm_only; then
136	if test ! -e .scmversion; then
137		res=$(scm_version)
138		echo "$res" >.scmversion
139	fi
140	exit
141fi
142
143if test -e include/config/auto.conf; then
144	. include/config/auto.conf
145else
146	echo "Error: kernelrelease not valid - run 'make prepare' to update it"
147	exit 1
148fi
149
150# localversion* files in the build and source directory
151res="$(collect_files localversion*)"
152if test ! "$srctree" -ef .; then
153	res="$res$(collect_files "$srctree"/localversion*)"
154fi
155
156# CONFIG_LOCALVERSION and LOCALVERSION (if set)
157res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
 
 
 
 
 
 
 
 
 
 
158
159# scm version string if not at a tagged commit
160if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
161	# full scm version string
162	res="$res$(scm_version)"
163else
164	# append a plus sign if the repository is not in a clean
165	# annotated or signed tagged state (as git describe only
166	# looks at signed or annotated tags - git tag -a/-s) and
167	# LOCALVERSION= is not specified
168	if test "${LOCALVERSION+set}" != "set"; then
169		scm=$(scm_version --short)
170		res="$res${scm:++}"
171	fi
172fi
173
174echo "$res"

  1#!/bin/sh
  2# SPDX-License-Identifier: GPL-2.0
  3#
  4# This scripts adds local version information from the version
  5# control system git.
  6#
  7# If something goes wrong, send a mail the kernel build mailinglist
  8# (see MAINTAINERS) and CC Nico Schottelius
  9# <nico-linuxsetlocalversion -at- schottelius.org>.
 10#
 11#
 12
 13usage() {
 14	echo "Usage: $0 [--no-local] [srctree]" >&2
 15	exit 1
 16}
 17
 18no_local=false
 19if test "$1" = "--no-local"; then
 20	no_local=true
 
 21	shift
 22fi
 23
 24srctree=.
 25if test $# -gt 0; then
 26	srctree=$1
 27	shift
 28fi
 29if test $# -gt 0 -o ! -d "$srctree"; then
 30	usage
 31fi
 32
 33scm_version()
 34{
 35	local short=false
 36	local no_dirty=false
 37	local tag
 38
 39	while [ $# -gt 0 ];
 40	do
 41		case "$1" in
 42		--short)
 43			short=true;;
 44		--no-dirty)
 45			no_dirty=true;;
 46		esac
 47		shift
 48	done
 49
 50	cd "$srctree"
 51
 52	if test -n "$(git rev-parse --show-cdup 2>/dev/null)"; then
 53		return
 54	fi
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 55
 56	if ! head=$(git rev-parse --verify HEAD 2>/dev/null); then
 57		return
 58	fi
 59
 60	# mainline kernel:  6.2.0-rc5  ->  v6.2-rc5
 61	# stable kernel:    6.1.7      ->  v6.1.7
 62	version_tag=v$(echo "${KERNELVERSION}" | sed -E 's/^([0-9]+\.[0-9]+)\.0(.*)$/\1\2/')
 63
 64	# If a localversion* file exists, and the corresponding
 65	# annotated tag exists and is an ancestor of HEAD, use
 66	# it. This is the case in linux-next.
 67	tag=${file_localversion#-}
 68	desc=
 69	if [ -n "${tag}" ]; then
 70		desc=$(git describe --match=$tag 2>/dev/null)
 71	fi
 72
 73	# Otherwise, if a localversion* file exists, and the tag
 74	# obtained by appending it to the tag derived from
 75	# KERNELVERSION exists and is an ancestor of HEAD, use
 76	# it. This is e.g. the case in linux-rt.
 77	if [ -z "${desc}" ] && [ -n "${file_localversion}" ]; then
 78		tag="${version_tag}${file_localversion}"
 79		desc=$(git describe --match=$tag 2>/dev/null)
 80	fi
 81
 82	# Otherwise, default to the annotated tag derived from KERNELVERSION.
 83	if [ -z "${desc}" ]; then
 84		tag="${version_tag}"
 85		desc=$(git describe --match=$tag 2>/dev/null)
 86	fi
 87
 88	# If we are at the tagged commit, we ignore it because the version is
 89	# well-defined.
 90	if [ "${tag}" != "${desc}" ]; then
 91
 92		# If only the short version is requested, don't bother
 93		# running further git commands
 94		if $short; then
 95			echo "+"
 96			return
 97		fi
 98		# If we are past the tagged commit, we pretty print it.
 99		# (like 6.1.0-14595-g292a089d78d3)
100		if [ -n "${desc}" ]; then
101			echo "${desc}" | awk -F- '{printf("-%05d", $(NF-1))}'
102		fi
103
104		# Add -g and exactly 12 hex chars.
105		printf '%s%s' -g "$(echo $head | cut -c1-12)"
106	fi
 
 
107
108	if ${no_dirty}; then
109		return
110	fi
111
112	# Check for uncommitted changes.
113	# This script must avoid any write attempt to the source tree, which
114	# might be read-only.
115	# You cannot use 'git describe --dirty' because it tries to create
116	# .git/index.lock .
117	# First, with git-status, but --no-optional-locks is only supported in
118	# git >= 2.14, so fall back to git-diff-index if it fails. Note that
119	# git-diff-index does not refresh the index, so it may give misleading
120	# results.
121	# See git-update-index(1), git-diff-index(1), and git-status(1).
122	if {
123		git --no-optional-locks status -uno --porcelain 2>/dev/null ||
124		git diff-index --name-only HEAD
125	} | read dummy; then
126		printf '%s' -dirty
127	fi
128}
129
130collect_files()
131{
132	local file res=
133
134	for file; do
135		case "$file" in
136		*\~*)
137			continue
138			;;
139		esac
140		if test -e "$file"; then
141			res="$res$(cat "$file")"
142		fi
143	done
144	echo "$res"
145}
146
147if [ -z "${KERNELVERSION}" ]; then
148	echo "KERNELVERSION is not set" >&2
 
 
 
 
 
 
 
 
 
 
149	exit 1
150fi
151
152# localversion* files in the build and source directory
153file_localversion="$(collect_files localversion*)"
154if test ! "$srctree" -ef .; then
155	file_localversion="${file_localversion}$(collect_files "$srctree"/localversion*)"
156fi
157
158if ${no_local}; then
159	echo "${KERNELVERSION}$(scm_version --no-dirty)"
160	exit 0
161fi
162
163if ! test -e include/config/auto.conf; then
164	echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
165	exit 1
166fi
167
168# version string from CONFIG_LOCALVERSION
169config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf)
170
171# scm version string if not at the kernel version tag or at the file_localversion
172if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then
173	# full scm version string
174	scm_version="$(scm_version)"
175elif [ "${LOCALVERSION+set}" != "set" ]; then
176	# If the variable LOCALVERSION is not set, append a plus
177	# sign if the repository is not in a clean annotated or
178	# signed tagged state (as git describe only looks at signed
179	# or annotated tags - git tag -a/-s).
180	#
181	# If the variable LOCALVERSION is set (including being set
182	# to an empty string), we don't want to append a plus sign.
183	scm_version="$(scm_version --short)"
184fi
185
186echo "${KERNELVERSION}${file_localversion}${config_localversion}${LOCALVERSION}${scm_version}"