[ANNOUNCE] hg "shell" extension

[Mark Williamson]

Hi all,

I'm not aware of anything like this having been done before but maybe I just 
missed it.  For some reason I've decided it'd be "fun" to dive into playing 
with Python's readline interface and hacked up a prototype interactive Hg 
shell.

The attached patch is a snapshot of how far I've gotten.  It applies with -p0 
and adds a file "shell.py" to the hgext directory.  There are no other 
changes to the hg source.

The "shell" extension implements an interactive commandline for hg, supporting 
editting, history and tab completion on command names, command options and 
global opions.  It should work on Unix systems, but I believe not on Windows 
(which lacks a Python readline module, apparently).

The tab completion isn't yet as intelligent as it could be, since it doesn't 
understand which options should also have arguments and it's not able to 
complete filenames or revision IDs.  I'll hope to add these features in a 
future release

My usual disclaimer: this hasn't done anything nasty to me, but remember it's 
pre-release code.  Thought some here might enjoy taking a look / playing 
around with it.

Cheers,
Mark

-- 
Push Me Pull You - Distributed SCM tool (http://www.cl.cam.ac.uk/~maw48/pmpu/)
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