| 1 | #!/bin/sh |
| 2 | # SPDX-License-Identifier: GPL-2.0 |
| 3 | # |
| 4 | # This scripts adds local version information from the version |
| 5 | # control systems git, mercurial (hg) and subversion (svn). |
| 6 | # |
| 7 | # If something goes wrong, send a mail the kernel build mailinglist |
| 8 | # (see MAINTAINERS) and CC Nico Schottelius |
| 9 | # <nico-linuxsetlocalversion -at- schottelius.org>. |
| 10 | # |
| 11 | # |
| 12 | |
| 13 | usage() { |
| 14 | echo "Usage: $0 [--save-scmversion] [srctree]" >&2 |
| 15 | exit 1 |
| 16 | } |
| 17 | |
| 18 | scm_only=false |
| 19 | srctree=. |
| 20 | if test "$1" = "--save-scmversion"; then |
| 21 | scm_only=true |
| 22 | shift |
| 23 | fi |
| 24 | if test $# -gt 0; then |
| 25 | srctree=$1 |
| 26 | shift |
| 27 | fi |
| 28 | if test $# -gt 0 -o ! -d "$srctree"; then |
| 29 | usage |
| 30 | fi |
| 31 | |
| 32 | scm_version() |
| 33 | { |
| 34 | local short |
| 35 | short=false |
| 36 | |
| 37 | cd "$srctree" |
| 38 | if test -e .scmversion; then |
| 39 | cat .scmversion |
| 40 | return |
| 41 | fi |
| 42 | if test "$1" = "--short"; then |
| 43 | short=true |
| 44 | fi |
| 45 | |
| 46 | # Check for git and a git repo. |
| 47 | if test -z "$(git rev-parse --show-cdup 2>/dev/null)" && |
| 48 | head=$(git rev-parse --verify --short HEAD 2>/dev/null); then |
| 49 | |
| 50 | # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore |
| 51 | # it, because this version is defined in the top level Makefile. |
| 52 | if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then |
| 53 | |
| 54 | # If only the short version is requested, don't bother |
| 55 | # running further git commands |
| 56 | if $short; then |
| 57 | echo "+" |
| 58 | return |
| 59 | fi |
| 60 | # If we are past a tagged commit (like |
| 61 | # "v2.6.30-rc5-302-g72357d5"), we pretty print it. |
| 62 | if atag="$(git describe 2>/dev/null)"; then |
| 63 | echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}' |
| 64 | |
| 65 | # If we don't have a tag at all we print -g{commitish}. |
| 66 | else |
| 67 | printf '%s%s' -g $head |
| 68 | fi |
| 69 | fi |
| 70 | |
| 71 | # Is this git on svn? |
| 72 | if git config --get svn-remote.svn.url >/dev/null; then |
| 73 | printf -- '-svn%s' "$(git svn find-rev $head)" |
| 74 | fi |
| 75 | |
| 76 | # Check for uncommitted changes. |
| 77 | # First, with git-status, but --no-optional-locks is only |
| 78 | # supported in git >= 2.14, so fall back to git-diff-index if |
| 79 | # it fails. Note that git-diff-index does not refresh the |
| 80 | # index, so it may give misleading results. See |
| 81 | # git-update-index(1), git-diff-index(1), and git-status(1). |
| 82 | if { |
| 83 | git --no-optional-locks status -uno --porcelain 2>/dev/null || |
| 84 | git diff-index --name-only HEAD |
| 85 | } | grep -qvE '^(.. )?scripts/package'; then |
| 86 | printf '%s' -dirty |
| 87 | fi |
| 88 | |
| 89 | # All done with git |
| 90 | return |
| 91 | fi |
| 92 | |
| 93 | # Check for mercurial and a mercurial repo. |
| 94 | if test -d .hg && hgid=$(hg id 2>/dev/null); then |
| 95 | # Do we have an tagged version? If so, latesttagdistance == 1 |
| 96 | if [ "$(hg log -r . --template '{latesttagdistance}')" = "1" ]; then |
| 97 | id=$(hg log -r . --template '{latesttag}') |
| 98 | printf '%s%s' -hg "$id" |
| 99 | else |
| 100 | tag=$(printf '%s' "$hgid" | cut -d' ' -f2) |
| 101 | if [ -z "$tag" -o "$tag" = tip ]; then |
| 102 | id=$(printf '%s' "$hgid" | sed 's/[+ ].*//') |
| 103 | printf '%s%s' -hg "$id" |
| 104 | fi |
| 105 | fi |
| 106 | |
| 107 | # Are there uncommitted changes? |
| 108 | # These are represented by + after the changeset id. |
| 109 | case "$hgid" in |
| 110 | *+|*+\ *) printf '%s' -dirty ;; |
| 111 | esac |
| 112 | |
| 113 | # All done with mercurial |
| 114 | return |
| 115 | fi |
| 116 | |
| 117 | # Check for svn and a svn repo. |
| 118 | if rev=$(LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'); then |
| 119 | rev=$(echo $rev | awk '{print $NF}') |
| 120 | printf -- '-svn%s' "$rev" |
| 121 | |
| 122 | # All done with svn |
| 123 | return |
| 124 | fi |
| 125 | } |
| 126 | |
| 127 | collect_files() |
| 128 | { |
| 129 | local file res= |
| 130 | |
| 131 | for file; do |
| 132 | case "$file" in |
| 133 | *\~*) |
| 134 | continue |
| 135 | ;; |
| 136 | esac |
| 137 | if test -e "$file"; then |
| 138 | res="$res$(cat "$file")" |
| 139 | fi |
| 140 | done |
| 141 | echo "$res" |
| 142 | } |
| 143 | |
| 144 | if $scm_only; then |
| 145 | if test ! -e .scmversion; then |
| 146 | res=$(scm_version) |
| 147 | echo "$res" >.scmversion |
| 148 | fi |
| 149 | exit |
| 150 | fi |
| 151 | |
| 152 | if test -e include/config/auto.conf; then |
| 153 | . include/config/auto.conf |
| 154 | else |
| 155 | echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2 |
| 156 | exit 1 |
| 157 | fi |
| 158 | |
| 159 | # localversion* files in the build and source directory |
| 160 | res="$(collect_files localversion*)" |
| 161 | if test ! "$srctree" -ef .; then |
| 162 | res="$res$(collect_files "$srctree"/localversion*)" |
| 163 | fi |
| 164 | |
| 165 | # CONFIG_LOCALVERSION and LOCALVERSION (if set) |
| 166 | res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}" |
| 167 | |
| 168 | # scm version string if not at a tagged commit |
| 169 | if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then |
| 170 | # full scm version string |
| 171 | res="$res$(scm_version)" |
| 172 | else |
| 173 | # append a plus sign if the repository is not in a clean |
| 174 | # annotated or signed tagged state (as git describe only |
| 175 | # looks at signed or annotated tags - git tag -a/-s) and |
| 176 | # LOCALVERSION= is not specified |
| 177 | if test "${LOCALVERSION+set}" != "set"; then |
| 178 | scm=$(scm_version --short) |
| 179 | res="$res${scm:++}" |
| 180 | fi |
| 181 | fi |
| 182 | |
| 183 | echo "$res" |