tools/version.sh

   1 #!/bin/sh
   2 #             __________               __   ___.
   3 #   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4 #   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5 #   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6 #   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7 #                     \/            \/     \/    \/            \/
   8 # $Id$
   9 #
  10
  11 # Usage: version.sh [source-root]
  12
  13 # Prints the revision of the repository.
  14 #
  15 # The format is rNNNNN[M]-YYMMDD
  16 #
  17 # The M indicates the revision isn't matched to a pure Subversion ID, usually
  18 # because it's built from something like GIT.
  19
  20 svnversion_safe() {
  21     # LANG=C forces svnversion to not localize "exported".
  22     if OUTPUT=`LANG=C svnversion "$@"`; then
  23         if [ "$OUTPUT" = "exported" ]; then
  24             echo "unknown"
  25         else
  26             echo "r$OUTPUT"
  27         fi
  28     else
  29         echo "unknown"
  30     fi
  31 }
  32
  33 # This logic is pulled from the Linux's scripts/setlocalversion (also GPL) and tweaked for
  34 # rockbox. If the commit information for HEAD has a svn-id in it we report that instead of
  35 # the git id
  36 gitversion() {
  37     export GIT_DIR="$1/.git"
  38
  39     # This verifies we are in a git directory
  40     if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
  41
  42         # Get the svn revision of the most recent git-svn commit
  43         version=`git log --pretty=format:'%b' --grep='git-svn-id: svn' -1 | tail -n 1 | perl -ne 'm/@(\d*)/; print "r" . $1;'`
  44         mod=""
  45         # Is this a git-svn commit?
  46         if ! git log  HEAD^.. --pretty=format:"%b" | grep -q "git-svn-id: svn" ; then
  47             mod="M"
  48         # Are there uncommitted changes?
  49         else
  50             export GIT_WORK_TREE="$1"
  51             if git diff --name-only HEAD | read dummy; then
  52                 mod="M"
  53             elif git diff --name-only --cached HEAD | read dummy; then
  54                 mod="M"
  55             fi
  56         fi
  57
  58         echo "${version}${mod}"
  59         # All done with git
  60         exit
  61     fi
  62 }
  63
  64 #
  65 # First locate the top of the src tree (passed in usually)
  66 #
  67 if [ -n "$1" ]; then TOP=$1; else TOP=..; fi
  68
  69 # If the VERSIONFILE exisits we use that
  70 VERSIONFILE=docs/VERSION
  71 if [ -r $TOP/$VERSIONFILE ]; then VER=`cat $TOP/$VERSIONFILE`;
  72 else
  73     # Ok, we need to derive it from the Version Control system
  74     if [ -d "$TOP/.git" ]; then
  75         VER=`gitversion $TOP`
  76     else
  77         VER=`svnversion_safe $TOP`;
  78         if [ "$VER" = "unknown" ]; then
  79         # try getting it from a subdir to test if perhaps they are symlinked
  80         # from the root
  81         VER=`svnversion_safe $TOP/tools`;
  82         fi
  83     fi
  84 fi
  85 VERSION=$VER-`date -u +%y%m%d`
  86 echo $VERSION
  87