get_version

   1 #!/bin/bash
   2
   3 if [ ! -d .git ]; then
   4   echo "not in an development environment, no .git directory found" >&2
   5   exit 1
   6 fi
   7
   8 # find an exact match, if found use it as version as we are currently
   9 # exactly on one tag
  10 # ex.: v0.42
  11 version=`git describe --tag --exact-match 2>/dev/null`
  12 if [ $? -eq 0 ]; then
  13   echo $version | tr -d 'v'
  14   exit 0
  15 fi
  16
  17 # if we are not on a exact tag, use the last tag and add the date
  18 # ex.: v0.43.20101018
  19 # "git describe --tag --abbrev=0 --always" does not work correctly with git versions < 1.7
  20 # see issue #198
  21 version=`git tag -l | sed -e 's/^v//g' | sort -n | tail -n 1`
  22 if [ $? -eq 0 ]; then
  23   date=`date +%Y%m%d`
  24   major=`echo $version | cut -d . -f 1`
  25   minor=`echo $version | cut -d . -f 2`
  26
  27   # do we have a even minor version?
  28   let mod=$minor%2
  29   if [ $mod -eq 0 ]; then
  30     minor=$(printf '%02d' $((minor+1)))
  31   fi
  32   version="$major.$minor"
  33
  34   echo $version.$date | tr -d 'v'
  35   exit 1
  36 fi
  37
  38 echo "unknown"