#!/bin/sh

if [ -f ${1}/.version ]; then
	cat ${1}/.version
elif [ -f ${1}/.svnrevision ]; then
	echo SVN-`cat ${1}/.svnbranch`-r`cat ${1}/.svnrevision`
elif [ -d ${1}/.svn ]; then
    PARTS=`LANG=C svn info ${1} | grep URL | awk '{print $2;}' | sed -e s:^.*/svn/${2}/:: | sed -e 's:/: :g'`
    BRANCH=0
    TEAM=0
    
    REV=`svnversion -c ${1} | cut -d: -f2`
    
    if [ "${PARTS}" = "trunk" ]
	then
	echo SVN-'trunk'-r${REV}
	exit 0
    fi
    
    for PART in $PARTS
      do
      if [ ${BRANCH} != 0 ]
	  then
	  RESULT="${RESULT}-${PART}"
	  break
      fi
      
      if [ ${TEAM} != 0 ]
	  then
	  RESULT="${RESULT}-${PART}"
	  continue
      fi
      
      if [ "${PART}" = "branches" ]
	  then
	  BRANCH=1
	  RESULT="branch"
	  continue
      fi
      
      if [ "${PART}" = "tags" ]
	  then
	  BRANCH=1
	  RESULT="tag"
	  continue
      fi
      
      if [ "${PART}" = "team" ]
	  then
	  TEAM=1
	  continue
      fi
    done
    
    echo SVN-${RESULT##-}-r${REV}
elif [ -d ${1}/.git ]; then
    # If the first log commit messages indicates that this is checked into
    # subversion, we'll just use the SVN- form of the revision.
    MODIFIED=""
    SVN_REV=`git log --pretty=full -1 | grep -F "git-svn-id:" | sed -e "s/.*\@\([^\s]*\)\s.*/\1/g"`
    if [ -z "$SVN_REV" ]; then
        VERSION=`git describe --tags --dirty=M 2> /dev/null | sed -e "s/^v\([0-9]\)/\1/"`
        if [ $? -ne 0 ]; then
            if [ "`git ls-files -m | wc -l`" != "0" ]; then
                MODIFIED="M"
            fi
            # Some older versions of git do not support all the above
            # options.
            VERSION=GIT-`git rev-parse --short --verify HEAD`${MODIFIED}
        fi
	VERSION=${VERSION##*/}    # Remove leading slashes: upsteram/2.10.2
	VERSION=${VERSION#[1-9]%} # Remove 1% from tag (tag from Debian epoch)
        echo ${VERSION}
    else
        PARTS=`LANG=C git log --pretty=full | grep -F "git-svn-id:" | head -1 | awk '{print $2;}' | sed -e s:^.*/svn/$2/:: | sed -e 's:/: :g' | sed -e 's/@.*$//g'`
        BRANCH=0
        TEAM=0

        if [ "`git ls-files -m | wc -l`" != "0" ]; then
            MODIFIED="M"
        fi

        if [ "${PARTS}" = "trunk" ]; then
            echo SVN-'trunk'-r${SVN_REV}${MODIFIED}
            exit 0
        fi

        for PART in $PARTS
          do
              if [ ${BRANCH} != 0 ]; then
              RESULT="${RESULT}-${PART}"
              break
          fi

          if [ ${TEAM} != 0 ]; then
              RESULT="${RESULT}-${PART}"
              continue
          fi

          if [ "${PART}" = "branches" ]; then
              BRANCH=1
              RESULT="branch"
              continue
          fi

          if [ "${PART}" = "tags" ]; then
              BRANCH=1
              RESULT="tag"
              continue
          fi

          if [ "${PART}" = "team" ]; then
              TEAM=1
              continue
          fi
        done

        echo SVN-${RESULT##-}-r${SVN_REV}${MODIFIED}
    fi
else
	# Use the directory information in the absence of any other version
	# information
	pwd -P
fi