branchcache: add a "pure topological head" fast path
In a narrow but actually quick common case, all topological heads are all on
the same branch and all open. In this case, computing the branch map is very
simple. We can quickly detect situation where this situation will not change.
So we update the V3 format to be able to express this situation and upgrade the
update code to detect we remains in that mode.
The branch cache is populated with the actual value when the branch map is
accessed, but the update_disk method can do the update without needing to
populate it.
#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