sync p4 recursively

p4sync.sh

# we have software depot in perforce //sw/...
# problem is while syncing we get:
# Request too large (over 750000); see 'p4 help maxresults'.
# here is simple function to resolve this:
# if you are using zsh
#    $ setopts interactivecomments
sync_p4 ()
{
    p4 -r 1 sync $1...$2;            # sync $1 at $2 ; possible $2's can be #0 ;) or @my-cl-number
    # retry only once
    if [ $? -ne 0 ]; then            # if not successful in syncing $1 recurse
        while read p; do
            sync_p4 $p;
        done < <(p4 dirs -C $1\*);   # tailor here if you *have* different than in client ;)
    fi                               # http://www.perforce.com/perforce/r14.2/manuals/cmdref/p4_dirs.html
}
# use: $ sync_p4 //depot/subset/

doesn't work for zsh 😠