view tests/test-convert-p4-filetypes.out @ 15141:16dc9a32ca04

mdiff: speed up showfunc for large diffs

This addresses the following issues with showfunc:

- Silly usage of regular expressions.
- Doing str.rstrip() needlessly in an inner loop.
- Doing catastrophic backtracking when trying to find a function line.

Finding function text is now at worst O(n lines in the old file), and
at best close to O(n hunks).

Given a diff like this[1]:

 src/main/antlr3/uk/ac/cam/ch/wwmm/pregenerated/ChemicalChunker.g        |      4 +-
 src/main/java/uk/ac/cam/ch/wwmm/pregenerated/ChemicalChunkerLexer.java  |      2 +-
 src/main/java/uk/ac/cam/ch/wwmm/pregenerated/ChemicalChunkerParser.java |  29189 +++++----
 3 files changed, 14741 insertions(+), 14454 deletions(-)

[1]: https://bitbucket.org/wwmm/chemicaltagger/changeset/d2bfbaecd4fc/raw

Without this change, hg log --stat --config diff.showfunc=1 takes an
absurdly long time to complete:

   CallCount    Recursive    Total(ms)   Inline(ms) module:lineno(function)
       32813            0     80.3546     40.6086   mercurial.mdiff:160(yieldhunk)
   [phone]            0     25.7227     25.7227   +<method 'match' of '_sre.SRE_Pattern' objects>
   [phone]            0     14.0221     14.0221   +<method 'rstrip' of 'str' objects>
       +1809            0      0.0009      0.0009   +mercurial.mdiff:148(contextend)
       +1809            0      0.0003      0.0003   +<len>
    65062746            0     25.7227     25.7227   <method 'match' of '_sre.SRE_Pattern' objects>
    65062763            0     14.0221     14.0221   <method 'rstrip' of 'str' objects>
         543            0      0.1631      0.1631   <zlib.decompress>
           3            0      0.0505      0.0505   <mercurial.bdiff.blocks>
       31007            0     80.4564      0.0477   mercurial.mdiff:147(_unidiff)
      +32813            0     80.3546     40.6086   +mercurial.mdiff:160(yieldhunk)
          +3            0      0.0505      0.0505   +<mercurial.bdiff.blocks>
       +3618            0      0.0022      0.0022   +mercurial.mdiff:154(contextstart)
       +5427            0      0.0013      0.0013   +<len>
          +3            0      0.0001      0.0000   +re:188(compile)
           1            0     80.8381      0.0322   mercurial.patch:1777(diffstatdata)
     +107499            0      0.0235      0.0235   +<method 'startswith' of 'str' objects>
      +31014            0     80.7820      0.0071   +mercurial.util:1284(iterlines)
          +3            0      0.0000      0.0000   +<method 'search' of '_sre.SRE_Pattern' objects>
          +4            0      0.0000      0.0000   +mercurial.patch:1783(addresult)
          +3            0      0.0000      0.0000   +<method 'group' of '_sre.SRE_Match' objects>
           6            0      0.0444      0.0283   mercurial.mdiff:12(splitnewlines)
          +6            0      0.0160      0.0160   +<method 'split' of 'str' objects>
          32            0      0.0246      0.0246   <method 'update' of '_hashlib.HASH' objects>
          11            0      0.0236      0.0236   <method 'read' of 'file' objects>
Time: real 80.880 secs (user 80.200+0.000 sys 0.380+0.000)

With this change, it's almost as fast as not using showfunc at all:

   CallCount    Recursive    Total(ms)   Inline(ms) module:lineno(function)
         543            0      0.1699      0.1699   <zlib.decompress>
           3            0      0.0501      0.0501   <mercurial.bdiff.blocks>
       32813            0      0.0415      0.0348   mercurial.mdiff:161(yieldhunk)
      +70837            0      0.0058      0.0058   +<method 'isalnum' of 'str' objects>
       +1809            0      0.0006      0.0006   +mercurial.mdiff:148(contextend)
       +1809            0      0.0002      0.0002   +<len>
           1            0      0.4879      0.0310   mercurial.patch:1777(diffstatdata)
     +107499            0      0.0230      0.0230   +<method 'startswith' of 'str' objects>
      +31014            0      0.4335      0.0065   +mercurial.util:1284(iterlines)
          +3            0      0.0000      0.0000   +<method 'search' of '_sre.SRE_Pattern' objects>
          +4            0      0.0000      0.0000   +mercurial.patch:1783(addresult)
          +1            0      0.0004      0.0000   +re:188(compile)
          32            0      0.0293      0.0293   <method 'update' of '_hashlib.HASH' objects>
           6            0      0.0427      0.0279   mercurial.mdiff:12(splitnewlines)
          +6            0      0.0147      0.0147   +<method 'split' of 'str' objects>
       31007            0      0.1169      0.0235   mercurial.mdiff:147(_unidiff)
          +3            0      0.0501      0.0501   +<mercurial.bdiff.blocks>
      +32813            0      0.0415      0.0348   +mercurial.mdiff:161(yieldhunk)
       +3618            0      0.0012      0.0012   +mercurial.mdiff:154(contextstart)
       +5427            0      0.0006      0.0006   +<len>
      107597            0      0.0230      0.0230   <method 'startswith' of 'str' objects>
          16            0      0.0213      0.0213   <mercurial.mpatch.patches>
         194            0      0.0149      0.0149   <method 'split' of 'str' objects>
Time: real 0.530 secs (user 0.450+0.000 sys 0.070+0.000)

% create p4 depot
% start the p4 server
% create a client spec
Client hg-p4-import saved.
% populate the depot
//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
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
//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
//depot/test-mercurial-import/crazy_symlink+k#1 - opened for add
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
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
initializing destination dst repository
reading p4 views
collecting p4 changelists
1 initial
2 keywords
scanning source...
sorting...
converting...
1 initial
0 keywords
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_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_xtext target_symlink target_symlink+k"
grev=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"
g% revision 0
30 files updated, 0 files merged, 0 files removed, 0 files unresolved
==> 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
30 files updated, 0 files merged, 0 files removed, 0 files unresolved
==> 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_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_xtext <==
this is xtext
$Id$
$Header$
$Date$
$DateTime$
$Change$
$File$
$Revision$
$Header$$Header$Header$

% crazy_symlink
target_$Header: //depot/test-mercurial-import/crazy_symlink+k#1 $
target_$Header$
% stop the p4 server