Mercurial > hg
view tests/test-convert-p4-filetypes.t @ 47678:065e61628980
dirstate-v2: Support appending to the same data file
For now we’re still writing the entire data every time, so appending is not
useful yet. Later we’ll have new nodes pointing to some existing data for
nodes and paths that haven’t changed.
The decision whether to append is pseudo-random in order to make tests exercise
both code paths. This will be replaced by a heuristic based on the amount
of unused existing data.
Differential Revision: https://phab.mercurial-scm.org/D11094
author | Simon Sapin <simon.sapin@octobus.net> |
---|---|
date | Tue, 13 Jul 2021 17:18:23 +0200 |
parents | 5abc47d4ca6b |
children |
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#require p4 execbit symlink $ echo "[extensions]" >> $HGRCPATH $ echo "convert = " >> $HGRCPATH create p4 depot $ P4ROOT=`pwd`/depot; export P4ROOT $ P4AUDIT=$P4ROOT/audit; export P4AUDIT $ P4JOURNAL=$P4ROOT/journal; export P4JOURNAL $ P4LOG=$P4ROOT/log; export P4LOG $ P4PORT=localhost:$HGPORT; export P4PORT $ P4DEBUG=1; export P4DEBUG $ P4CHARSET=utf8; export P4CHARSET start the p4 server $ [ ! -d $P4ROOT ] && mkdir $P4ROOT $ p4d -f -J off -xi >$P4ROOT/stdout 2>$P4ROOT/stderr $ p4d -f -J off >$P4ROOT/stdout 2>$P4ROOT/stderr & $ echo $! >> $DAEMON_PIDS $ trap "echo stopping the p4 server ; p4 admin stop" EXIT wait for the server to initialize $ while ! p4 ; do > sleep 1 > done >/dev/null 2>/dev/null create a client spec $ P4CLIENT=hg-p4-import; export P4CLIENT $ DEPOTPATH=//depot/test-mercurial-import/... $ p4 client -o | sed '/^View:/,$ d' >p4client $ echo View: >>p4client $ echo " $DEPOTPATH //$P4CLIENT/..." >>p4client $ p4 client -i <p4client Client hg-p4-import saved. populate the depot $ TYPES="text binary symlink" $ TYPES="$TYPES text+m text+w text+x text+k text+kx text+ko text+l text+C text+D text+F text+S text+S2" $ TYPES="$TYPES binary+k binary+x binary+kx symlink+k" $ TYPES="$TYPES ctext cxtext ktext kxtext ltext tempobj ubinary uxbinary xbinary xltext xtempobj xtext" not testing these $ #TYPES="$TYPES apple resource unicode utf16 uresource xunicode xutf16" $ for T in $TYPES ; do > T2=`echo $T | tr [:upper:] [:lower:]` > case $T in > apple) > ;; > symlink*) > echo "this is target $T" >target_$T2 > ln -s target_$T file_$T2 > p4 add target_$T2 > p4 add -t $T file_$T2 > ;; > binary*) > "$PYTHON" -c "open('file_$T2', 'wb').write(b'this is $T')" > p4 add -t $T file_$T2 > ;; > *) > echo "this is $T" >file_$T2 > p4 add -t $T file_$T2 > ;; > esac > done //depot/test-mercurial-import/file_text#1 - opened for add //depot/test-mercurial-import/file_binary#1 - opened for add //depot/test-mercurial-import/target_symlink#1 - opened for add //depot/test-mercurial-import/file_symlink#1 - opened for add //depot/test-mercurial-import/file_text+m#1 - opened for add //depot/test-mercurial-import/file_text+w#1 - opened for add //depot/test-mercurial-import/file_text+x#1 - opened for add //depot/test-mercurial-import/file_text+k#1 - opened for add //depot/test-mercurial-import/file_text+kx#1 - opened for add //depot/test-mercurial-import/file_text+ko#1 - opened for add //depot/test-mercurial-import/file_text+l#1 - opened for add //depot/test-mercurial-import/file_text+c#1 - opened for add //depot/test-mercurial-import/file_text+d#1 - opened for add //depot/test-mercurial-import/file_text+f#1 - opened for add //depot/test-mercurial-import/file_text+s#1 - opened for add //depot/test-mercurial-import/file_text+s2#1 - opened for add //depot/test-mercurial-import/file_binary+k#1 - opened for add //depot/test-mercurial-import/file_binary+x#1 - opened for add //depot/test-mercurial-import/file_binary+kx#1 - opened for add //depot/test-mercurial-import/target_symlink+k#1 - opened for add //depot/test-mercurial-import/file_symlink+k#1 - opened for add //depot/test-mercurial-import/file_ctext#1 - opened for add //depot/test-mercurial-import/file_cxtext#1 - opened for add //depot/test-mercurial-import/file_ktext#1 - opened for add //depot/test-mercurial-import/file_kxtext#1 - opened for add //depot/test-mercurial-import/file_ltext#1 - opened for add //depot/test-mercurial-import/file_tempobj#1 - opened for add //depot/test-mercurial-import/file_ubinary#1 - opened for add //depot/test-mercurial-import/file_uxbinary#1 - opened for add //depot/test-mercurial-import/file_xbinary#1 - opened for add //depot/test-mercurial-import/file_xltext#1 - opened for add //depot/test-mercurial-import/file_xtempobj#1 - opened for add //depot/test-mercurial-import/file_xtext#1 - opened for add $ p4 submit -d initial Submitting change 1. Locking 33 files ... add //depot/test-mercurial-import/file_binary#1 add //depot/test-mercurial-import/file_binary+k#1 add //depot/test-mercurial-import/file_binary+kx#1 add //depot/test-mercurial-import/file_binary+x#1 add //depot/test-mercurial-import/file_ctext#1 add //depot/test-mercurial-import/file_cxtext#1 add //depot/test-mercurial-import/file_ktext#1 add //depot/test-mercurial-import/file_kxtext#1 add //depot/test-mercurial-import/file_ltext#1 add //depot/test-mercurial-import/file_symlink#1 add //depot/test-mercurial-import/file_symlink+k#1 add //depot/test-mercurial-import/file_tempobj#1 add //depot/test-mercurial-import/file_text#1 add //depot/test-mercurial-import/file_text+c#1 add //depot/test-mercurial-import/file_text+d#1 add //depot/test-mercurial-import/file_text+f#1 add //depot/test-mercurial-import/file_text+k#1 add //depot/test-mercurial-import/file_text+ko#1 add //depot/test-mercurial-import/file_text+kx#1 add //depot/test-mercurial-import/file_text+l#1 add //depot/test-mercurial-import/file_text+m#1 add //depot/test-mercurial-import/file_text+s#1 add //depot/test-mercurial-import/file_text+s2#1 add //depot/test-mercurial-import/file_text+w#1 add //depot/test-mercurial-import/file_text+x#1 add //depot/test-mercurial-import/file_ubinary#1 add //depot/test-mercurial-import/file_uxbinary#1 add //depot/test-mercurial-import/file_xbinary#1 add //depot/test-mercurial-import/file_xltext#1 add //depot/test-mercurial-import/file_xtempobj#1 add //depot/test-mercurial-import/file_xtext#1 add //depot/test-mercurial-import/target_symlink#1 add //depot/test-mercurial-import/target_symlink+k#1 Change 1 submitted. //depot/test-mercurial-import/file_binary+k#1 - refreshing //depot/test-mercurial-import/file_binary+kx#1 - refreshing //depot/test-mercurial-import/file_ktext#1 - refreshing //depot/test-mercurial-import/file_kxtext#1 - refreshing //depot/test-mercurial-import/file_symlink+k#1 - refreshing //depot/test-mercurial-import/file_text+k#1 - refreshing //depot/test-mercurial-import/file_text+ko#1 - refreshing //depot/test-mercurial-import/file_text+kx#1 - refreshing test keyword expansion $ p4 edit file_* target_* //depot/test-mercurial-import/file_binary#1 - opened for edit //depot/test-mercurial-import/file_binary+k#1 - opened for edit //depot/test-mercurial-import/file_binary+kx#1 - opened for edit //depot/test-mercurial-import/file_binary+x#1 - opened for edit //depot/test-mercurial-import/file_ctext#1 - opened for edit //depot/test-mercurial-import/file_cxtext#1 - opened for edit //depot/test-mercurial-import/file_ktext#1 - opened for edit //depot/test-mercurial-import/file_kxtext#1 - opened for edit //depot/test-mercurial-import/file_ltext#1 - opened for edit //depot/test-mercurial-import/file_symlink#1 - opened for edit //depot/test-mercurial-import/file_symlink+k#1 - opened for edit //depot/test-mercurial-import/file_tempobj#1 - opened for edit //depot/test-mercurial-import/file_text#1 - opened for edit //depot/test-mercurial-import/file_text+c#1 - opened for edit //depot/test-mercurial-import/file_text+d#1 - opened for edit //depot/test-mercurial-import/file_text+f#1 - opened for edit //depot/test-mercurial-import/file_text+k#1 - opened for edit //depot/test-mercurial-import/file_text+ko#1 - opened for edit //depot/test-mercurial-import/file_text+kx#1 - opened for edit //depot/test-mercurial-import/file_text+l#1 - opened for edit //depot/test-mercurial-import/file_text+m#1 - opened for edit //depot/test-mercurial-import/file_text+s#1 - opened for edit //depot/test-mercurial-import/file_text+s2#1 - opened for edit //depot/test-mercurial-import/file_text+w#1 - opened for edit //depot/test-mercurial-import/file_text+x#1 - opened for edit //depot/test-mercurial-import/file_ubinary#1 - opened for edit //depot/test-mercurial-import/file_uxbinary#1 - opened for edit //depot/test-mercurial-import/file_xbinary#1 - opened for edit //depot/test-mercurial-import/file_xltext#1 - opened for edit //depot/test-mercurial-import/file_xtempobj#1 - opened for edit //depot/test-mercurial-import/file_xtext#1 - opened for edit //depot/test-mercurial-import/target_symlink#1 - opened for edit //depot/test-mercurial-import/target_symlink+k#1 - opened for edit $ for T in $TYPES ; do > T2=`echo $T | tr [:upper:] [:lower:]` > echo '$Id$' >>file_$T2 > echo '$Header$' >>file_$T2 > echo '$Date$' >>file_$T2 > echo '$DateTime$' >>file_$T2 > echo '$Change$' >>file_$T2 > echo '$File$' >>file_$T2 > echo '$Revision$' >>file_$T2 > echo '$Header$$Header$Header$' >>file_$T2 > done $ ln -s 'target_$Header$' crazy_symlink+k $ p4 add -t symlink+k crazy_symlink+k //depot/test-mercurial-import/crazy_symlink+k#1 - opened for add $ p4 submit -d keywords Submitting change 2. Locking 34 files ... add //depot/test-mercurial-import/crazy_symlink+k#1 edit //depot/test-mercurial-import/file_binary#2 edit //depot/test-mercurial-import/file_binary+k#2 edit //depot/test-mercurial-import/file_binary+kx#2 edit //depot/test-mercurial-import/file_binary+x#2 edit //depot/test-mercurial-import/file_ctext#2 edit //depot/test-mercurial-import/file_cxtext#2 edit //depot/test-mercurial-import/file_ktext#2 edit //depot/test-mercurial-import/file_kxtext#2 edit //depot/test-mercurial-import/file_ltext#2 edit //depot/test-mercurial-import/file_symlink#2 edit //depot/test-mercurial-import/file_symlink+k#2 edit //depot/test-mercurial-import/file_tempobj#2 edit //depot/test-mercurial-import/file_text#2 edit //depot/test-mercurial-import/file_text+c#2 edit //depot/test-mercurial-import/file_text+d#2 edit //depot/test-mercurial-import/file_text+f#2 edit //depot/test-mercurial-import/file_text+k#2 edit //depot/test-mercurial-import/file_text+ko#2 edit //depot/test-mercurial-import/file_text+kx#2 edit //depot/test-mercurial-import/file_text+l#2 edit //depot/test-mercurial-import/file_text+m#2 edit //depot/test-mercurial-import/file_text+s#2 edit //depot/test-mercurial-import/file_text+s2#2 edit //depot/test-mercurial-import/file_text+w#2 edit //depot/test-mercurial-import/file_text+x#2 edit //depot/test-mercurial-import/file_ubinary#2 edit //depot/test-mercurial-import/file_uxbinary#2 edit //depot/test-mercurial-import/file_xbinary#2 edit //depot/test-mercurial-import/file_xltext#2 edit //depot/test-mercurial-import/file_xtempobj#2 edit //depot/test-mercurial-import/file_xtext#2 edit //depot/test-mercurial-import/target_symlink#2 edit //depot/test-mercurial-import/target_symlink+k#2 Change 2 submitted. //depot/test-mercurial-import/crazy_symlink+k#1 - refreshing //depot/test-mercurial-import/file_binary+k#2 - refreshing //depot/test-mercurial-import/file_binary+kx#2 - refreshing //depot/test-mercurial-import/file_ktext#2 - refreshing //depot/test-mercurial-import/file_kxtext#2 - refreshing //depot/test-mercurial-import/file_symlink+k#2 - refreshing //depot/test-mercurial-import/file_text+k#2 - refreshing //depot/test-mercurial-import/file_text+ko#2 - refreshing //depot/test-mercurial-import/file_text+kx#2 - refreshing check keywords in p4 $ grep -H Header file_* file_binary:$Header$ file_binary:$Header$$Header$Header$ file_binary+k:$Header: //depot/test-mercurial-import/file_binary+k#2 $ file_binary+k:$Header: //depot/test-mercurial-import/file_binary+k#2 $$Header: //depot/test-mercurial-import/file_binary+k#2 $Header$ file_binary+kx:$Header: //depot/test-mercurial-import/file_binary+kx#2 $ file_binary+kx:$Header: //depot/test-mercurial-import/file_binary+kx#2 $$Header: //depot/test-mercurial-import/file_binary+kx#2 $Header$ file_binary+x:$Header$ file_binary+x:$Header$$Header$Header$ file_ctext:$Header$ file_ctext:$Header$$Header$Header$ file_cxtext:$Header$ file_cxtext:$Header$$Header$Header$ file_ktext:$Header: //depot/test-mercurial-import/file_ktext#2 $ file_ktext:$Header: //depot/test-mercurial-import/file_ktext#2 $$Header: //depot/test-mercurial-import/file_ktext#2 $Header$ file_kxtext:$Header: //depot/test-mercurial-import/file_kxtext#2 $ file_kxtext:$Header: //depot/test-mercurial-import/file_kxtext#2 $$Header: //depot/test-mercurial-import/file_kxtext#2 $Header$ file_ltext:$Header$ file_ltext:$Header$$Header$Header$ file_symlink:$Header$ file_symlink:$Header$$Header$Header$ file_symlink+k:$Header$ file_symlink+k:$Header$$Header$Header$ file_tempobj:$Header$ file_tempobj:$Header$$Header$Header$ file_text:$Header$ file_text:$Header$$Header$Header$ file_text+c:$Header$ file_text+c:$Header$$Header$Header$ file_text+d:$Header$ file_text+d:$Header$$Header$Header$ file_text+f:$Header$ file_text+f:$Header$$Header$Header$ file_text+k:$Header: //depot/test-mercurial-import/file_text+k#2 $ file_text+k:$Header: //depot/test-mercurial-import/file_text+k#2 $$Header: //depot/test-mercurial-import/file_text+k#2 $Header$ file_text+ko:$Header: //depot/test-mercurial-import/file_text+ko#2 $ file_text+ko:$Header: //depot/test-mercurial-import/file_text+ko#2 $$Header: //depot/test-mercurial-import/file_text+ko#2 $Header$ file_text+kx:$Header: //depot/test-mercurial-import/file_text+kx#2 $ file_text+kx:$Header: //depot/test-mercurial-import/file_text+kx#2 $$Header: //depot/test-mercurial-import/file_text+kx#2 $Header$ file_text+l:$Header$ file_text+l:$Header$$Header$Header$ file_text+m:$Header$ file_text+m:$Header$$Header$Header$ file_text+s:$Header$ file_text+s:$Header$$Header$Header$ file_text+s2:$Header$ file_text+s2:$Header$$Header$Header$ file_text+w:$Header$ file_text+w:$Header$$Header$Header$ file_text+x:$Header$ file_text+x:$Header$$Header$Header$ file_ubinary:$Header$ file_ubinary:$Header$$Header$Header$ file_uxbinary:$Header$ file_uxbinary:$Header$$Header$Header$ file_xbinary:$Header$ file_xbinary:$Header$$Header$Header$ file_xltext:$Header$ file_xltext:$Header$$Header$Header$ file_xtempobj:$Header$ file_xtempobj:$Header$$Header$Header$ file_xtext:$Header$ file_xtext:$Header$$Header$Header$ convert $ hg convert -s p4 $DEPOTPATH dst initializing destination dst repository scanning source... reading p4 views collecting p4 changelists 1 initial 2 keywords sorting... converting... 1 initial 0 keywords $ hg -R dst log --template 'rev={rev} desc="{desc}" tags="{tags}" files="{files}"\n' rev=1 desc="keywords" tags="tip" files="crazy_symlink+k file_binary file_binary+k file_binary+kx file_binary+x file_ctext file_cxtext file_ktext file_kxtext file_ltext file_tempobj file_text file_text+c file_text+d file_text+f file_text+k file_text+ko file_text+kx file_text+l file_text+m file_text+s file_text+s2 file_text+w file_text+x file_ubinary file_uxbinary file_xbinary file_xltext file_xtempobj file_xtext target_symlink target_symlink+k" rev=0 desc="initial" tags="" files="file_binary file_binary+k file_binary+kx file_binary+x file_ctext file_cxtext file_ktext file_kxtext file_ltext file_symlink file_symlink+k file_text file_text+c file_text+d file_text+f file_text+k file_text+ko file_text+kx file_text+l file_text+m file_text+s2 file_text+w file_text+x file_ubinary file_uxbinary file_xbinary file_xltext file_xtext target_symlink target_symlink+k" revision 0 $ hg -R dst update 0 30 files updated, 0 files merged, 0 files removed, 0 files unresolved $ head dst/file_* | cat -v ==> dst/file_binary <== this is binary ==> dst/file_binary+k <== this is binary+k ==> dst/file_binary+kx <== this is binary+kx ==> dst/file_binary+x <== this is binary+x ==> dst/file_ctext <== this is ctext ==> dst/file_cxtext <== this is cxtext ==> dst/file_ktext <== this is ktext ==> dst/file_kxtext <== this is kxtext ==> dst/file_ltext <== this is ltext ==> dst/file_symlink <== this is target symlink ==> dst/file_symlink+k <== this is target symlink+k ==> dst/file_text <== this is text ==> dst/file_text+c <== this is text+C ==> dst/file_text+d <== this is text+D ==> dst/file_text+f <== this is text+F ==> dst/file_text+k <== this is text+k ==> dst/file_text+ko <== this is text+ko ==> dst/file_text+kx <== this is text+kx ==> dst/file_text+l <== this is text+l ==> dst/file_text+m <== this is text+m ==> dst/file_text+s2 <== this is text+S2 ==> dst/file_text+w <== this is text+w ==> dst/file_text+x <== this is text+x ==> dst/file_ubinary <== this is ubinary ==> dst/file_uxbinary <== this is uxbinary ==> dst/file_xbinary <== this is xbinary ==> dst/file_xltext <== this is xltext ==> dst/file_xtext <== this is xtext revision 1 $ hg -R dst update 1 32 files updated, 0 files merged, 0 files removed, 0 files unresolved $ head dst/file_* | cat -v ==> dst/file_binary <== this is binary$Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_binary+k <== this is binary+k$Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_binary+kx <== this is binary+kx$Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_binary+x <== this is binary+x$Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_ctext <== this is ctext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_cxtext <== this is cxtext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_ktext <== this is ktext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_kxtext <== this is kxtext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_ltext <== this is ltext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_symlink <== this is target symlink $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_symlink+k <== this is target symlink+k $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_tempobj <== this is tempobj $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text <== this is text $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+c <== this is text+C $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+d <== this is text+D $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+f <== this is text+F $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+k <== this is text+k $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+ko <== this is text+ko $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+kx <== this is text+kx $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+l <== this is text+l $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+m <== this is text+m $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+s <== this is text+S $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+s2 <== this is text+S2 $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+w <== this is text+w $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+x <== this is text+x $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_ubinary <== this is ubinary $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_uxbinary <== this is uxbinary $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_xbinary <== this is xbinary $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_xltext <== this is xltext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_xtempobj <== this is xtempobj $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_xtext <== this is xtext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ crazy_symlink $ readlink.py crazy_symlink+k crazy_symlink+k -> target_$Header: //depot/test-mercurial-import/crazy_symlink+k#1 $ $ readlink.py dst/crazy_symlink+k dst/crazy_symlink+k -> target_$Header$ exit trap: stopping the p4 server