# SPDX-License-Identifier: GPL-2.0
#
# This scripts adds local version information from the version
-# control systems git, mercurial (hg) and subversion (svn).
+# control system git.
#
# If something goes wrong, send a mail the kernel build mailinglist
# (see MAINTAINERS) and CC Nico Schottelius
#
usage() {
- echo "Usage: $0 [--save-scmversion] [srctree]" >&2
+ echo "Usage: $0 [--no-local] [srctree]" >&2
exit 1
}
-scm_only=false
-srctree=.
-if test "$1" = "--save-scmversion"; then
- scm_only=true
+no_local=false
+if test "$1" = "--no-local"; then
+ no_local=true
shift
fi
+
+srctree=.
if test $# -gt 0; then
srctree=$1
shift
scm_version()
{
- local short
- short=false
+ local short=false
+ local no_dirty=false
+ local tag
+
+ while [ $# -gt 0 ];
+ do
+ case "$1" in
+ --short)
+ short=true;;
+ --no-dirty)
+ no_dirty=true;;
+ esac
+ shift
+ done
cd "$srctree"
- if test -e .scmversion; then
- cat .scmversion
+
+ if test -n "$(git rev-parse --show-cdup 2>/dev/null)"; then
return
fi
- if test "$1" = "--short"; then
- short=true
- fi
- # Check for git and a git repo.
- if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
- head=$(git rev-parse --verify --short HEAD 2>/dev/null); then
-
- # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
- # it, because this version is defined in the top level Makefile.
- if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then
-
- # If only the short version is requested, don't bother
- # running further git commands
- if $short; then
- echo "+"
- return
- fi
- # If we are past a tagged commit (like
- # "v2.6.30-rc5-302-g72357d5"), we pretty print it.
- if atag="$(git describe 2>/dev/null)"; then
- echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
-
- # If we don't have a tag at all we print -g{commitish}.
- else
- printf '%s%s' -g $head
- fi
- fi
+ if ! head=$(git rev-parse --verify HEAD 2>/dev/null); then
+ return
+ fi
- # Is this git on svn?
- if git config --get svn-remote.svn.url >/dev/null; then
- printf -- '-svn%s' "$(git svn find-rev $head)"
- fi
+ # mainline kernel: 6.2.0-rc5 -> v6.2-rc5
+ # stable kernel: 6.1.7 -> v6.1.7
+ version_tag=v$(echo "${KERNELVERSION}" | sed -E 's/^([0-9]+\.[0-9]+)\.0(.*)$/\1\2/')
+
+ # If a localversion* file exists, and the corresponding
+ # annotated tag exists and is an ancestor of HEAD, use
+ # it. This is the case in linux-next.
+ tag=${file_localversion#-}
+ desc=
+ if [ -n "${tag}" ]; then
+ desc=$(git describe --match=$tag 2>/dev/null)
+ fi
- # Check for uncommitted changes.
- # First, with git-status, but --no-optional-locks is only
- # supported in git >= 2.14, so fall back to git-diff-index if
- # it fails. Note that git-diff-index does not refresh the
- # index, so it may give misleading results. See
- # git-update-index(1), git-diff-index(1), and git-status(1).
- if {
- git --no-optional-locks status -uno --porcelain 2>/dev/null ||
- git diff-index --name-only HEAD
- } | grep -qvE '^(.. )?scripts/package'; then
- printf '%s' -dirty
- fi
+ # Otherwise, if a localversion* file exists, and the tag
+ # obtained by appending it to the tag derived from
+ # KERNELVERSION exists and is an ancestor of HEAD, use
+ # it. This is e.g. the case in linux-rt.
+ if [ -z "${desc}" ] && [ -n "${file_localversion}" ]; then
+ tag="${version_tag}${file_localversion}"
+ desc=$(git describe --match=$tag 2>/dev/null)
+ fi
- # All done with git
- return
+ # Otherwise, default to the annotated tag derived from KERNELVERSION.
+ if [ -z "${desc}" ]; then
+ tag="${version_tag}"
+ desc=$(git describe --match=$tag 2>/dev/null)
fi
- # Check for mercurial and a mercurial repo.
- if test -d .hg && hgid=$(hg id 2>/dev/null); then
- # Do we have an tagged version? If so, latesttagdistance == 1
- if [ "$(hg log -r . --template '{latesttagdistance}')" = "1" ]; then
- id=$(hg log -r . --template '{latesttag}')
- printf '%s%s' -hg "$id"
- else
- tag=$(printf '%s' "$hgid" | cut -d' ' -f2)
- if [ -z "$tag" -o "$tag" = tip ]; then
- id=$(printf '%s' "$hgid" | sed 's/[+ ].*//')
- printf '%s%s' -hg "$id"
- fi
+ # If we are at the tagged commit, we ignore it because the version is
+ # well-defined.
+ if [ "${tag}" != "${desc}" ]; then
+
+ # If only the short version is requested, don't bother
+ # running further git commands
+ if $short; then
+ echo "+"
+ return
+ fi
+ # If we are past the tagged commit, we pretty print it.
+ # (like 6.1.0-14595-g292a089d78d3)
+ if [ -n "${desc}" ]; then
+ echo "${desc}" | awk -F- '{printf("-%05d", $(NF-1))}'
fi
- # Are there uncommitted changes?
- # These are represented by + after the changeset id.
- case "$hgid" in
- *+|*+\ *) printf '%s' -dirty ;;
- esac
+ # Add -g and exactly 12 hex chars.
+ printf '%s%s' -g "$(echo $head | cut -c1-12)"
+ fi
- # All done with mercurial
+ if ${no_dirty}; then
return
fi
- # Check for svn and a svn repo.
- if rev=$(LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'); then
- rev=$(echo $rev | awk '{print $NF}')
- printf -- '-svn%s' "$rev"
-
- # All done with svn
- return
+ # Check for uncommitted changes.
+ # This script must avoid any write attempt to the source tree, which
+ # might be read-only.
+ # You cannot use 'git describe --dirty' because it tries to create
+ # .git/index.lock .
+ # First, with git-status, but --no-optional-locks is only supported in
+ # git >= 2.14, so fall back to git-diff-index if it fails. Note that
+ # git-diff-index does not refresh the index, so it may give misleading
+ # results.
+ # See git-update-index(1), git-diff-index(1), and git-status(1).
+ if {
+ git --no-optional-locks status -uno --porcelain 2>/dev/null ||
+ git diff-index --name-only HEAD
+ } | read dummy; then
+ printf '%s' -dirty
fi
}
echo "$res"
}
-if $scm_only; then
- if test ! -e .scmversion; then
- res=$(scm_version)
- echo "$res" >.scmversion
- fi
- exit
-fi
-
-if test -e include/config/auto.conf; then
- # We are interested only in CONFIG_LOCALVERSION and
- # CONFIG_LOCALVERSION_AUTO, so extract these in a safe
- # way (i.e. w/o sourcing auto.conf)
- # xargs echo removes quotes
- CONFIG_LOCALVERSION=`cat include/config/auto.conf | awk -F '=' '/^CONFIG_LOCALVERSION=/ {print $2}' | xargs echo`
- CONFIG_LOCALVERSION_AUTO=`cat include/config/auto.conf | awk -F '=' '/^CONFIG_LOCALVERSION_AUTO=/ {print $2}' | xargs echo`
-else
- echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
+if [ -z "${KERNELVERSION}" ]; then
+ echo "KERNELVERSION is not set" >&2
exit 1
fi
# localversion* files in the build and source directory
-res="$(collect_files localversion*)"
+file_localversion="$(collect_files localversion*)"
if test ! "$srctree" -ef .; then
- res="$res$(collect_files "$srctree"/localversion*)"
+ file_localversion="${file_localversion}$(collect_files "$srctree"/localversion*)"
+fi
+
+if ${no_local}; then
+ echo "${KERNELVERSION}$(scm_version --no-dirty)"
+ exit 0
+fi
+
+if ! test -e include/config/auto.conf; then
+ echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
+ exit 1
fi
-# CONFIG_LOCALVERSION and LOCALVERSION (if set)
-res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
+# version string from CONFIG_LOCALVERSION
+config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf | tr -d '"')
-# scm version string if not at a tagged commit
-if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
+# scm version string if not at the kernel version tag or at the file_localversion
+if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then
# full scm version string
- res="$res$(scm_version)"
-else
- # append a plus sign if the repository is not in a clean
- # annotated or signed tagged state (as git describe only
- # looks at signed or annotated tags - git tag -a/-s) and
- # LOCALVERSION= is not specified
- if test "${LOCALVERSION+set}" != "set"; then
- scm=$(scm_version --short)
- res="$res${scm:++}"
- fi
+ scm_version="$(scm_version)"
+elif [ "${LOCALVERSION+set}" != "set" ]; then
+ # If the variable LOCALVERSION is not set, append a plus
+ # sign if the repository is not in a clean annotated or
+ # signed tagged state (as git describe only looks at signed
+ # or annotated tags - git tag -a/-s).
+ #
+ # If the variable LOCALVERSION is set (including being set
+ # to an empty string), we don't want to append a plus sign.
+ scm_version="$(scm_version --short)"
fi
-echo "$res"
+echo "${KERNELVERSION}${file_localversion}${config_localversion}${LOCALVERSION}${scm_version}"
projects / u-boot.git / commitdiff