[ANNOUNCE] hg "shell" extension

[Shun-ichi GOTO]

2008/2/6, Mark Williamson <mark.williamson at cl.cam.ac.uk>:
> > > My current development code has much better context-sensitive
> > > intelligence, things are coming along nice and quickly.
> >
> > It would definitely be a boon to be able to embed an hg-shell into
> > TortoiseHg.  Any chance you could get it to work with this package?
> >
> > http://newcenturycomputers.net/projects/readline.html
>
> I'd taken a look at that package already...  It sounded like the sort of thing
> one would want.  Unfortunately I don't currently have a Windows system to
> test on so I can't comment on whether it would work in practice.

I've tried with pyreadline which is a part of IPython:
  http://ipython.scipy.org/moin/
  http://ipython.scipy.org/dist/

I need following patch to play with it because mercurial replaces
sys.stdout for mercurial.util.winstdout.
# I don't know this is right way to go...

------------------
diff -r 282eb46a6503 hgext/shell.py
--- a/hgext/shell.py	Wed Feb 06 11:28:48 2008 +0900
+++ b/hgext/shell.py	Wed Feb 06 11:30:38 2008 +0900
@@ -5,8 +5,8 @@
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.

-import readline, shlex
-from mercurial import dispatch, commands, cmdutil
+import sys, readline, shlex
+from mercurial import dispatch, commands, cmdutil, util
 from itertools import ifilter, chain, islice

 '''
@@ -90,6 +90,8 @@

 def shell(ui, repo, *extras, **opts):
     '''Run an interactive hg shell interface.'''
+    if isinstance(sys.stdout, util.winstdout):
+        sys.stdout = sys.stdout.fp
     globals()['hg_ui'] = ui
     try:
         while True:
----------------------------

By this patch, completion works.
But there's a problem of filename completion which uses os.sep ('\')
and shell extension passes such filenames to mercurial commands as-is.
As result, command not work correctly.
We need to replace os.sep char to '/' (using util.normpath()) before execution.

-- 
Shun-ichi GOTO