tools/setlocalversion

   1 #!/bin/sh
   2 #
   3 # This scripts adds local version information from the version
   4 # control systems git, mercurial (hg) and subversion (svn).
   5 #
   6 # It was originally copied from the Linux kernel v3.2.0-rc4 and modified
   7 # to support the U-Boot build-system.
   8 #
   9
  10 usage() {
  11         echo "Usage: $0 [--save-scmversion] [srctree]" >&2
  12         exit 1
  13 }
  14
  15 scm_only=false
  16 srctree=.
  17 if test "$1" = "--save-scmversion"; then
  18         scm_only=true
  19         shift
  20 fi
  21 if test $# -gt 0; then
  22         srctree=$1
  23         shift
  24 fi
  25 if test $# -gt 0 -o ! -d "$srctree"; then
  26         usage
  27 fi
  28
  29 scm_version()
  30 {
  31         local short
  32         short=false
  33
  34         cd "$srctree"
  35         if test -e .scmversion; then
  36                 cat .scmversion
  37                 return
  38         fi
  39         if test "$1" = "--short"; then
  40                 short=true
  41         fi
  42
  43         # Check for git and a git repo.
  44         if test -e .git && head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
  45
  46                 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
  47                 # it, because this version is defined in the top level Makefile.
  48                 if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
  49
  50                         # If only the short version is requested, don't bother
  51                         # running further git commands
  52                         if $short; then
  53                                 echo "+"
  54                                 return
  55                         fi
  56                         # If we are past a tagged commit (like
  57                         # "v2.6.30-rc5-302-g72357d5"), we pretty print it.
  58                         if atag="`git describe 2>/dev/null`"; then
  59                                 echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
  60
  61                         # If we don't have a tag at all we print -g{commitish}.
  62                         else
  63                                 printf '%s%s' -g $head
  64                         fi
  65                 fi
  66
  67                 # Is this git on svn?
  68                 if git config --get svn-remote.svn.url >/dev/null; then
  69                         printf -- '-svn%s' "`git svn find-rev $head`"
  70                 fi
  71
  72                 # Update index only on r/w media
  73                 [ -w . ] && git update-index --refresh --unmerged > /dev/null
  74
  75                 # Check for uncommitted changes
  76                 if git diff-index --name-only HEAD | grep -v "^scripts/package" \
  77                     | read dummy; then
  78                         printf '%s' -dirty
  79                 fi
  80
  81                 # All done with git
  82                 return
  83         fi
  84
  85         # Check for mercurial and a mercurial repo.
  86         if test -d .hg && hgid=`hg id 2>/dev/null`; then
  87                 # Do we have an tagged version?  If so, latesttagdistance == 1
  88                 if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then
  89                         id=`hg log -r . --template '{latesttag}'`
  90                         printf '%s%s' -hg "$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=`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 "$res" >.scmversion
 140         fi
 141         exit
 142 fi
 143
 144 #if test -e include/config/auto.conf; then
 145 #       . include/config/auto.conf
 146 #else
 147 #       echo "Error: kernelrelease not valid - run 'make prepare' to update it"
 148 #       exit 1
 149 #fi
 150 CONFIG_LOCALVERSION=
 151 CONFIG_LOCALVERSION_AUTO=y
 152
 153 # localversion* files in the build and source directory
 154 res="$(collect_files localversion*)"
 155 if test ! "$srctree" -ef .; then
 156         res="$res$(collect_files "$srctree"/localversion*)"
 157 fi
 158
 159 # CONFIG_LOCALVERSION and LOCALVERSION (if set)
 160 res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
 161
 162 # scm version string if not at a tagged commit
 163 if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
 164         # full scm version string
 165         res="$res$(scm_version)"
 166 else
 167         # append a plus sign if the repository is not in a clean
 168         # annotated or signed tagged state (as git describe only
 169         # looks at signed or annotated tags - git tag -a/-s) and
 170         # LOCALVERSION= is not specified
 171         if test "${LOCALVERSION+set}" != "set"; then
 172                 scm=$(scm_version --short)
 173                 res="$res${scm:++}"
 174         fi
 175 fi
 176
 177 echo "$res"