2 # SPDX-License-Identifier: GPL-2.0
4 # This scripts adds local version information from the version
5 # control systems git, mercurial (hg) and subversion (svn).
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>.
14 echo "Usage: $0 [--save-scmversion] [srctree]" >&2
20 if test "$1" = "--save-scmversion"; then
24 if test $# -gt 0; then
28 if test $# -gt 0 -o ! -d "$srctree"; then
38 if test -e .scmversion; then
42 if test "$1" = "--short"; then
46 # Check for git and a git repo.
47 if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
48 head=$(git rev-parse --verify HEAD 2>/dev/null); then
50 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
51 # it, because this version is defined in the top level Makefile.
52 if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then
54 # If only the short version is requested, don't bother
55 # running further git commands
60 # If we are past a tagged commit (like
61 # "v2.6.30-rc5-302-g72357d5"), we pretty print it.
63 # Ensure the abbreviated sha1 has exactly 12
64 # hex characters, to make the output
65 # independent of git version, local
66 # core.abbrev settings and/or total number of
67 # objects in the current repository - passing
68 # --abbrev=12 ensures a minimum of 12, and the
69 # awk substr() then picks the 'g' and first 12
71 if atag="$(git describe --abbrev=12 2>/dev/null)"; then
72 echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),substr($(NF),0,13))}'
74 # If we don't have a tag at all we print -g{commitish},
75 # again using exactly 12 hex chars.
77 head="$(echo $head | cut -c1-12)"
78 printf '%s%s' -g $head
83 if git config --get svn-remote.svn.url >/dev/null; then
84 printf -- '-svn%s' "$(git svn find-rev $head)"
87 # Check for uncommitted changes.
88 # First, with git-status, but --no-optional-locks is only
89 # supported in git >= 2.14, so fall back to git-diff-index if
90 # it fails. Note that git-diff-index does not refresh the
91 # index, so it may give misleading results. See
92 # git-update-index(1), git-diff-index(1), and git-status(1).
94 git --no-optional-locks status -uno --porcelain 2>/dev/null ||
95 git diff-index --name-only HEAD
96 } | grep -qvE '^(.. )?scripts/package'; then
104 # Check for mercurial and a mercurial repo.
105 if test -d .hg && hgid=$(hg id 2>/dev/null); then
106 # Do we have an tagged version? If so, latesttagdistance == 1
107 if [ "$(hg log -r . --template '{latesttagdistance}')" = "1" ]; then
108 id=$(hg log -r . --template '{latesttag}')
109 printf '%s%s' -hg "$id"
111 tag=$(printf '%s' "$hgid" | cut -d' ' -f2)
112 if [ -z "$tag" -o "$tag" = tip ]; then
113 id=$(printf '%s' "$hgid" | sed 's/[+ ].*//')
114 printf '%s%s' -hg "$id"
118 # Are there uncommitted changes?
119 # These are represented by + after the changeset id.
121 *+|*+\ *) printf '%s' -dirty ;;
124 # All done with mercurial
128 # Check for svn and a svn repo.
129 if rev=$(LC_ALL=C svn info 2>/dev/null | grep '^Last Changed Rev'); then
130 rev=$(echo $rev | awk '{print $NF}')
131 printf -- '-svn%s' "$rev"
148 if test -e "$file"; then
149 res="$res$(cat "$file")"
156 if test ! -e .scmversion; then
158 echo "$res" >.scmversion
163 if test -e include/config/auto.conf; then
164 . include/config/auto.conf
166 echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
170 # localversion* files in the build and source directory
171 res="$(collect_files localversion*)"
172 if test ! "$srctree" -ef .; then
173 res="$res$(collect_files "$srctree"/localversion*)"
176 # CONFIG_LOCALVERSION and LOCALVERSION (if set)
177 res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
179 # scm version string if not at a tagged commit
180 if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
181 # full scm version string
182 res="$res$(scm_version)"
184 # append a plus sign if the repository is not in a clean
185 # annotated or signed tagged state (as git describe only
186 # looks at signed or annotated tags - git tag -a/-s) and
187 # LOCALVERSION= is not specified
188 if test "${LOCALVERSION+set}" != "set"; then
189 scm=$(scm_version --short)