mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Brian Norris](/assets/img/avatar_default.png)
git-diff-index does not refresh the index for you, so using it for a "-dirty" check can give misleading results. Commit6147b1cf19
("scripts/setlocalversion: git: Make -dirty check more robust") tried to fix this by switching to git-status, but it overlooked the fact that git-status also writes to the .git directory of the source tree, which is definitely not kosher for an out-of-tree (O=) build. That is getting reverted. Fortunately, git-status now supports avoiding writing to the index via the --no-optional-locks flag, as of git 2.14. It still calculates an up-to-date index, but it avoids writing it out to the .git directory. So, let's retry the solution from commit6147b1cf19
using this new flag first, and if it fails, we assume this is an older version of git and just use the old git-diff-index method. It's hairy to get the 'grep -vq' (inverted matching) correct by stashing the output of git-status (you have to be careful about the difference betwen "empty stdin" and "blank line on stdin"), so just pipe the output directly to grep and use a regex that's good enough for both the git-status and git-diff-index version. Cc: Christian Kujau <lists@nerdbynature.de> Cc: Guenter Roeck <linux@roeck-us.net> Suggested-by: Alexander Kapshuk <alexander.kapshuk@gmail.com> Signed-off-by: Brian Norris <briannorris@chromium.org> Tested-by: Genki Sky <sky@genki.is> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
183 lines
4.3 KiB
Bash
Executable file
183 lines
4.3 KiB
Bash
Executable file
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# This scripts adds local version information from the version
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# control systems git, mercurial (hg) and subversion (svn).
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#
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# If something goes wrong, send a mail the kernel build mailinglist
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# (see MAINTAINERS) and CC Nico Schottelius
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# <nico-linuxsetlocalversion -at- schottelius.org>.
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#
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#
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usage() {
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echo "Usage: $0 [--save-scmversion] [srctree]" >&2
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exit 1
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}
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scm_only=false
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srctree=.
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if test "$1" = "--save-scmversion"; then
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scm_only=true
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shift
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fi
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if test $# -gt 0; then
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srctree=$1
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shift
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fi
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if test $# -gt 0 -o ! -d "$srctree"; then
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usage
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fi
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scm_version()
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{
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local short
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short=false
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cd "$srctree"
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if test -e .scmversion; then
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cat .scmversion
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return
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fi
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if test "$1" = "--short"; then
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short=true
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fi
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# Check for git and a git repo.
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if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
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head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
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# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
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# it, because this version is defined in the top level Makefile.
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if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
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# If only the short version is requested, don't bother
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# running further git commands
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if $short; then
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echo "+"
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return
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fi
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# If we are past a tagged commit (like
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# "v2.6.30-rc5-302-g72357d5"), we pretty print it.
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if atag="`git describe 2>/dev/null`"; then
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echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
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# If we don't have a tag at all we print -g{commitish}.
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else
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printf '%s%s' -g $head
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fi
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fi
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# Is this git on svn?
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if git config --get svn-remote.svn.url >/dev/null; then
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printf -- '-svn%s' "`git svn find-rev $head`"
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fi
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# Check for uncommitted changes.
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# First, with git-status, but --no-optional-locks is only
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# supported in git >= 2.14, so fall back to git-diff-index if
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# it fails. Note that git-diff-index does not refresh the
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# index, so it may give misleading results. See
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# git-update-index(1), git-diff-index(1), and git-status(1).
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if {
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git --no-optional-locks status -uno --porcelain 2>/dev/null ||
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git diff-index --name-only HEAD
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} | grep -qvE '^(.. )?scripts/package'; then
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printf '%s' -dirty
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fi
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# All done with git
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return
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fi
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# Check for mercurial and a mercurial repo.
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if test -d .hg && hgid=`hg id 2>/dev/null`; then
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# Do we have an tagged version? If so, latesttagdistance == 1
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if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then
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id=`hg log -r . --template '{latesttag}'`
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printf '%s%s' -hg "$id"
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else
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tag=`printf '%s' "$hgid" | cut -d' ' -f2`
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if [ -z "$tag" -o "$tag" = tip ]; then
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id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
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printf '%s%s' -hg "$id"
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fi
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fi
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# Are there uncommitted changes?
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# These are represented by + after the changeset id.
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case "$hgid" in
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*+|*+\ *) printf '%s' -dirty ;;
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esac
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# All done with mercurial
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return
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fi
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# Check for svn and a svn repo.
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if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then
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rev=`echo $rev | awk '{print $NF}'`
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printf -- '-svn%s' "$rev"
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# All done with svn
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return
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fi
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}
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collect_files()
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{
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local file res
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for file; do
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case "$file" in
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*\~*)
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continue
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;;
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esac
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if test -e "$file"; then
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res="$res$(cat "$file")"
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fi
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done
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echo "$res"
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}
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if $scm_only; then
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if test ! -e .scmversion; then
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res=$(scm_version)
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echo "$res" >.scmversion
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fi
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exit
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fi
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if test -e include/config/auto.conf; then
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. include/config/auto.conf
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else
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echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
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exit 1
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fi
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# localversion* files in the build and source directory
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res="$(collect_files localversion*)"
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if test ! "$srctree" -ef .; then
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res="$res$(collect_files "$srctree"/localversion*)"
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fi
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# CONFIG_LOCALVERSION and LOCALVERSION (if set)
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res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
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# scm version string if not at a tagged commit
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if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
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# full scm version string
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res="$res$(scm_version)"
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else
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# append a plus sign if the repository is not in a clean
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# annotated or signed tagged state (as git describe only
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# looks at signed or annotated tags - git tag -a/-s) and
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# LOCALVERSION= is not specified
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if test "${LOCALVERSION+set}" != "set"; then
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scm=$(scm_version --short)
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res="$res${scm:++}"
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fi
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fi
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echo "$res"
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