diff options
Diffstat (limited to '')
| -rwxr-xr-x | scripts/setlocalversion | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/scripts/setlocalversion b/scripts/setlocalversion new file mode 100755 index 000000000..bb709eda9 --- /dev/null +++ b/scripts/setlocalversion @@ -0,0 +1,194 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# This scripts adds local version information from the version +# control systems git, mercurial (hg) and subversion (svn). +# +# If something goes wrong, send a mail the kernel build mailinglist +# (see MAINTAINERS) and CC Nico Schottelius +# <nico-linuxsetlocalversion -at- schottelius.org>. +# +# + +usage() { + echo "Usage: $0 [--save-scmversion] [srctree]" >&2 + exit 1 +} + +scm_only=false +srctree=. +if test "$1" = "--save-scmversion"; then + scm_only=true + shift +fi +if test $# -gt 0; then + srctree=$1 + shift +fi +if test $# -gt 0 -o ! -d "$srctree"; then + usage +fi + +scm_version() +{ + local short + short=false + + cd "$srctree" + if test -e .scmversion; then + cat .scmversion + 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=$(git rev-parse --verify HEAD 2>/dev/null); then + + # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore + # it, because this version is defined in the top level Makefile. + if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then + + # If only the short version is requested, don't bother + # running further git commands + if $short; then + echo "+" + return + fi + # If we are past a tagged commit (like + # "v2.6.30-rc5-302-g72357d5"), we pretty print it. + # + # Ensure the abbreviated sha1 has exactly 12 + # hex characters, to make the output + # independent of git version, local + # core.abbrev settings and/or total number of + # objects in the current repository - passing + # --abbrev=12 ensures a minimum of 12, and the + # awk substr() then picks the 'g' and first 12 + # hex chars. + if atag="$(git describe --abbrev=12 2>/dev/null)"; then + echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),substr($(NF),0,13))}' + + # If we don't have a tag at all we print -g{commitish}, + # again using exactly 12 hex chars. + else + head="$(echo $head | cut -c1-12)" + printf '%s%s' -g $head + fi + fi + + # Is this git on svn? + if git config --get svn-remote.svn.url >/dev/null; then + printf -- '-svn%s' "$(git svn find-rev $head)" + fi + + # Check for uncommitted changes. + # First, with git-status, but --no-optional-locks is only + # supported in git >= 2.14, so fall back to git-diff-index if + # it fails. Note that git-diff-index does not refresh the + # index, so it may give misleading results. See + # git-update-index(1), git-diff-index(1), and git-status(1). + if { + git --no-optional-locks status -uno --porcelain 2>/dev/null || + git diff-index --name-only HEAD + } | grep -qvE '^(.. )?scripts/package'; then + printf '%s' -dirty + fi + + # All done with git + return + fi + + # Check for mercurial and a mercurial repo. + if test -d .hg && hgid=$(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 + fi + + # Are there uncommitted changes? + # These are represented by + after the changeset id. + case "$hgid" in + *+|*+\ *) printf '%s' -dirty ;; + esac + + # All done with mercurial + return + fi + + # Check for svn and a svn repo. + if rev=$(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 + fi +} + +collect_files() +{ + local file res= + + for file; do + case "$file" in + *\~*) + continue + ;; + esac + if test -e "$file"; then + res="$res$(cat "$file")" + fi + done + echo "$res" +} + +if $scm_only; then + if test ! -e .scmversion; then + res=$(scm_version) + echo "$res" >.scmversion + fi + exit +fi + +if test -e include/config/auto.conf; then + . include/config/auto.conf +else + echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2 + exit 1 +fi + +# localversion* files in the build and source directory +res="$(collect_files localversion*)" +if test ! "$srctree" -ef .; then + res="$res$(collect_files "$srctree"/localversion*)" +fi + +# CONFIG_LOCALVERSION and LOCALVERSION (if set) +res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}" + +# scm version string if not at a tagged commit +if test "$CONFIG_LOCALVERSION_AUTO" = "y"; 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 +fi + +echo "$res" |