#! /bin/sh
#
# $Id$

# Get current SVN revision from Ids in all source files
REVMAX=`( find . '(' -name '*.[chm]' -o -name '*.cpp' -o -name '*.po' \
            -o -name '*.mk' -o -name '*.in' -o -name 'Makefile' \
            -o -name 'configure' ')' -exec cat '{}' ';' ) | \
          sed -e '/\$Id:/!d' -e \
            's/.*\$Id: [^ ]* \([0-9]*\) .*/\1/' |
          awk 'BEGIN { REV=0 }
               //    { if ( $1 > REV ) REV=$1 }
               END   { print REV }'`
  
# Generate files to be included: only overwrite them if changed so make
# won't rebuild everything unless necessary
replace_if_differs ()
{
    if cmp $1 $2 > /dev/null 2>&1; then
      rm -f $1
    else
      mv -f $1 $2
    fi
}

# Generate version.mk
cp -f mk/version.mk.in mk/version.mk.new
echo "VERSION_REVISION = $REVMAX" >> mk/version.mk.new
replace_if_differs mk/version.mk.new mk/version.mk

# Generate version.h from version.mk
grep "^VER" mk/version.mk | sed -e 's/^/#define /g' -e 's/= //g' \
    -e 's/\(VERSION_STRING[ ]*\)\(.*\)/\1"\2"/' > \
    libtransmission/version.h.new
replace_if_differs libtransmission/version.h.new libtransmission/version.h

exit 0