#!/bin/sh

# get_diff.sh, Version 1.0, Raimar Falke

CVS=cvs
CVS_FLAGS="-z5 -q"

DIFF_FLAGS="-u"

LOCALCOPY=GET_DIFF_TREE
REPOSITORY=":pserver:freecvs@xxxxxxxxxxxxxxx:/home/freeciv/CVS"
MODULE=freeciv

HELPER=`pwd`/get_diff_helper.py
CMDS=get_diff_cvs_commands

mkdir -p $LOCALCOPY
cd $LOCALCOPY

if [ ! -d "$MODULE" ]
then
  echo 1>&2 "Have to checkout $MODULE"
  if ! fgrep "$REPOSITORY" $HOME/.cvspass >/dev/null 2>/dev/null
  then
    echo 1>&2 "Please login first"
    exit 1
  fi
  $CVS $CVS_FLAGS -d"$REPOSITORY" checkout $MODULE
fi

cd $MODULE

echo 1>&2 "Updating $MODULE"
$CVS $CVS_FLAGS update -dPA >/dev/null

echo 1>&2 "Updating log files"
find . -type f | grep -v CVS | grep -v "\.LOG$" | while read line
do
  log=$line".LOG"
  if [ ! -f $log ] || [ ! -s $log ] || [ $line -nt $log ]
  then
    echo 1>&2 "  Updating log for $line"
    $CVS $CVS_FLAGS log $line >$log 2>/dev/null
    if [ $? -ne 0 ]
    then
      rm $log
    fi
  fi
done

rm -f $CMDS

find . -type f -name "*.LOG" | $HELPER "$@"

if [ ! -f $CMDS ]
then
  exit 1
fi

echo 1>&2 "Calling cvs diff"
rm -f $0_$$.out
cat $CMDS | while read line
do
  $CVS $CVSFLAGS diff $DIFF_FLAGS $line >>$0_$$.out
done
diffstat <$0_$$.out 2>/dev/null
echo
echo "wc: " `wc <$0_$$.out`
echo
cat $0_$$.out
rm $0_$$.out
rm $CMDS