scripts/setlocalversion

   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 $head`"
  74                 fi
  75
  76                 # Check for uncommitted changes
  77                 if git diff-index --name-only HEAD | grep -qv "^scripts/package"; then
  78                         printf '%s' -dirty
  79                 fi
  80
  81                 # All done with git
  82                 return
  83         fi
  84
  85         # Check for mercurial and a mercurial repo.
  86         if test -d .hg && hgid=`hg id 2>/dev/null`; then
  87                 # Do we have an tagged version?  If so, latesttagdistance == 1
  88                 if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then
  89                         id=`hg log -r . --template '{latesttag}'`
  90                         printf '%s%s' -hg "$id"
  91                 else
  92                         tag=`printf '%s' "$hgid" | cut -d' ' -f2`
  93                         if [ -z "$tag" -o "$tag" = tip ]; then
  94                                 id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
  95                                 printf '%s%s' -hg "$id"
  96                         fi
  97                 fi
  98
  99                 # Are there uncommitted changes?
 100                 # These are represented by + after the changeset id.
 101                 case "$hgid" in
 102                         *+|*+\ *) printf '%s' -dirty ;;
 103                 esac
 104
 105                 # All done with mercurial
 106                 return
 107         fi
 108
 109         # Check for svn and a svn repo.
 110         if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then
 111                 rev=`echo $rev | awk '{print $NF}'`
 112                 printf -- '-svn%s' "$rev"
 113
 114                 # All done with svn
 115                 return
 116         fi
 117 }
 118
 119 collect_files()
 120 {
 121         local file res
 122
 123         for file; do
 124                 case "$file" in
 125                 *\~*)
 126                         continue
 127                         ;;
 128                 esac
 129                 if test -e "$file"; then
 130                         res="$res$(cat "$file")"
 131                 fi
 132         done
 133         echo "$res"
 134 }
 135
 136 if $scm_only; then
 137         if test ! -e .scmversion; then
 138                 res=$(scm_version)
 139                 echo "$res" >.scmversion
 140         fi
 141         exit
 142 fi
 143
 144 if test -e include/config/auto.conf; then
 145         . include/config/auto.conf
 146 else
 147         echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
 148         exit 1
 149 fi
 150
 151 # localversion* files in the build and source directory
 152 res="$(collect_files localversion*)"
 153 if test ! "$srctree" -ef .; then
 154         res="$res$(collect_files "$srctree"/localversion*)"
 155 fi
 156
 157 # CONFIG_LOCALVERSION and LOCALVERSION (if set)
 158 res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
 159
 160 # scm version string if not at a tagged commit
 161 if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
 162         # full scm version string
 163         res="$res$(scm_version)"
 164 else
 165         # append a plus sign if the repository is not in a clean
 166         # annotated or signed tagged state (as git describe only
 167         # looks at signed or annotated tags - git tag -a/-s) and
 168         # LOCALVERSION= is not specified
 169         if test "${LOCALVERSION+set}" != "set"; then
 170                 scm=$(scm_version --short)
 171                 res="$res${scm:++}"
 172         fi
 173 fi
 174
 175 echo "$res"