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-rwxr-xr-xscripts/setlocalversion194
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"