File set_version of Package obs-service-set_version

#!/bin/bash

# A simple script to update spec or dsc file
# very, very simple. I am happy about patches which handles multiple files with different version numbers
#
# (C) 2010 by Adrian Schröter <adrian@suse.de>
#  
# This program is free software; you can redistribute it and/or  
# modify it under the terms of the GNU General Public License  
# as published by the Free Software Foundation; either version 2  
# of the License, or (at your option) any later version.  
# See http://www.gnu.org/licenses/gpl-2.0.html for full license text.  


# defaults
MYVERSION=""
FILES=""

while test $# -gt 0; do
  case $1 in
    *-version)
      MYVERSION="$2"
      shift
    ;;
    *-file)
      FILES="$FILES ${2##*/}"
      shift
    ;;
    *-basename)
      BASENAME="^$2"
      shift
    ;;
    *-outdir)
      MYOUTDIR="$2"
      shift
    ;;
    *)
      echo Unknown parameter $1.
      echo 'Usage: set_version --version $VERSION --file $FILE --outdir $OUT'
      exit 1
    ;;
  esac
  shift
done

if [ -z "$MYVERSION" ]; then
  MYVERSION=`ls -1 | sed -n "s,$BASENAME.*-\([0123456789].*\).tar.*,\1,p" | head -n 1`
fi
if [ -z "$MYVERSION" ]; then
  MYVERSION=`ls -1 | sed -n "s,$BASENAME.*-\([0123456789].*\).tgz$,\1,p" | head -n 1`
fi
if [ -z "$MYVERSION" ]; then
  MYVERSION=`ls -1 | sed -n "s,$BASENAME.*-\([0123456789].*\).tbz2$,\1,p" | head -n 1`
fi
if [ -z "$MYVERSION" ]; then
  MYVERSION=`ls -1 | sed -n "s,$BASENAME.*-\([0123456789].*\).zip$,\1,p" | head -n 1`
fi
if [ -z "$MYVERSION" ]; then
  echo "ERROR: no version is given and can't get detected automatically"
  exit 1
fi
if [ -z "$FILES" ]; then
  FILES="*.spec *.dsc"
fi
if [ -z "$MYOUTDIR" ]; then
  echo "ERROR: no output directory is given via --outdir parameter!"
  exit 1
fi

for i in $FILES; do
  FILE=`ls -1 $i 2>/dev/null`
  [ -e "$FILE" ] || continue

  sed "s,^Version:.*,Version: $MYVERSION," "$FILE" > "$MYOUTDIR/$FILE" || exit 1
  if [ "${FILE%.spec}" != "$FILE" ]; then
    # set release back to zero after version upgrade, will be increased by OBS during build
    # also keep macros in release in case of fedora/mandriva
    sed -r -i 's,^Release:[^%]*,Release: 0,' "$MYOUTDIR/$FILE" || exit 1
 fi

  if [ "${FILE#_service:}" != "$FILE" ]; then
    # we can remove service files, no need to store them twice
    rm -f "$FILE"
  fi
done

exit 0