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