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194 lines
4.7 KiB
194 lines
4.7 KiB
#!/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=$(git rev-parse --verify HEAD 2>/dev/null); then |
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# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore |
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# it, because this version is defined in the top level Makefile. |
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if [ -z "$(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 $short; then |
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echo "+" |
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return |
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fi |
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# If we are past a tagged commit (like |
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# "v2.6.30-rc5-302-g72357d5"), we pretty print it. |
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# |
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# Ensure the abbreviated sha1 has exactly 12 |
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# hex characters, to make the output |
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# independent of git version, local |
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# core.abbrev settings and/or total number of |
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# objects in the current repository - passing |
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# --abbrev=12 ensures a minimum of 12, and the |
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# awk substr() then picks the 'g' and first 12 |
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# hex chars. |
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if atag="$(git describe --abbrev=12 2>/dev/null)"; then |
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echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),substr($(NF),0,13))}' |
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# If we don't have a tag at all we print -g{commitish}, |
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# again using exactly 12 hex chars. |
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else |
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head="$(echo $head | cut -c1-12)" |
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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 "$hgid" in |
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*+|*+\ *) printf '%s' -dirty ;; |
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esac |
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# All done with mercurial |
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return |
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fi |
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# Check for svn and a svn repo. |
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if rev=$(LC_ALL=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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