#!/bin/bash

if test $# -lt 2 -o $# -gt 5; then  
    echo "Usage: $0 base_directory dest_directory [execmode datamode]"
    echo "       "
    echo "       (e.g., $0 /home/clip/Systems/ciao /tmp)"
    echo "       "
    echo "       Replicates a directory tree, skipping those directories"
    echo "       which have a .nodistribute or a NODISTRIBUTE or a "
    echo "       .NODISTRIBUTE file in them."
    echo "       "
    echo "       If any file being copied is a link, a warning is issued"
    echo "       the file pointed to by the link is copied if possible,"
    echo "       except if the directory has a .keeplinks KEEPLINKS file "
    echo "       in it, in which case a link is made (but the link must of "
    echo "       course be *relative* an point inside the set of directories "
    echo "       being copied."
    echo "       "
    echo "       Permissions in the copied directory are set to execmode "
    echo "       (for executables/directories) and datamode (normal files)."
else

myself=$0
basedir=$1
parentdest=$2

if test -f $basedir/.keeplinks -o -f $basedir/KEEPLINKS ; then
    copylinks="no"
else
    copylinks="yes"
fi

if test $# -le 3; then  
    execmode=775
    datamode=664
else
    execmode=$3
    datamode=$4
fi    

dirmode=$execmode
dirname=${basedir##/*/}


if test -f $basedir/.nodistribute \
     -o -f $basedir/NODISTRIBUTE  \
     -o -f $basedir/.NODISTRIBUTE  \
     -o -f $basedir/NODISTRIBUTE.gz \
     -o -z "${dirname##*\.bak}" \
     -o -z "${dirname##*\.old}" \
     -o -z "${dirname##*\.BAK}" \
     -o -z "${dirname##*\.OLD}" \
     -o    $dirname = "old" \
     -o    $dirname = "Old" \
     -o    $dirname = "OLD" \
     -o    $dirname = "bak" \
     -o    $dirname = "Bak" \
     -o    $dirname = "BAK" ; then
    echo "** Skipping directory $basedir"
else
    basename=${basedir##/*/}
    destdir=$parentdest/$basename
    /bin/mkdir -p $destdir
    /bin/chmod $dirmode $destdir
    if test -f $basedir/NOCOMPILE ; then
        /bin/cp -p $basedir/NOCOMPILE $destdir
    fi
    if test -f $basedir/.nocompile ; then
        /bin/cp -p $basedir/.nocompile $destdir
    fi
    for f in $basedir/* ; do
        new_name=${f##/*/}               # Get file name
        if test -d $f ; then             # Recurse
            $myself $f $destdir $execmode $datamode
        else
            if test    -z "${f##*\.bak}" \
		    -o -z "${f##*\.Tmp}" \
		    -o -z "${f##*\.tmp}" \
  		    -o -z "${f##*\.ORIG}" \
  		    -o -z "${f##*\.Orig}" \
  		    -o -z "${f##*\.TMP}" \
  		    -o -z "${f##*\.orig}" \
  		    -o -z "${f##*_opt.pl}" \
  		    -o -z "${f##*tmpciao*}" \
                    -o -z "${f##*\.BAK}" \
                    -o -z "${f##*\.Bak}" \
                    -o -z "${f##*\.NEW}" \
                    -o -z "${f##*\.New}" \
                    -o -z "${f##*\.OLD}" \
                    -o -z "${f##*\.Old}" \
                    -o -z "${f##*\.aux}" \
                    -o -z "${f##*\.tar.gz}"  \
                    -o -z "${f##*\.tgz}"  \
                    -o -z "${f##*\.log}" \
                    -o -z "${f##*\.new}" \
                    -o -z "${f##*\.old}" \
                    -o -z "${f##*\.tar}" \
                    -o -z "${f##*~}" \
                    -o -z ${f##*#};    then
                echo "** Skipping file $f"
            else
                if test -h $f ; then
                    if test $copylinks = "yes" ; then
                        echo "** Copying symlink $f"
                        /bin/cp -p $f $destdir/$new_name
		    else
			echo "** Linking symlink $f"
			(cd $basedir; \
                         tar cf  -  $new_name) | \
                         (cd $destdir; tar xpf - $new_name)
		    fi
		else
		    /bin/cp -p $f $destdir/$new_name
                fi
                if test -x $f ; then
                    /bin/chmod $execmode $destdir/$new_name
                else
                    /bin/chmod $datamode $destdir/$new_name
                fi
            fi
        fi
    done
fi
fi