hg diff/status always returns zero?

[Ted Pavlic]

> It seems that "hg status" and "hg diff" always return zero regardless
> of whether there are changes or not.  Is this correct?  If so, is it
> deliberate?  I would like to call these functions from a script and
> having a non-zero return code when there are changes would simplify my
> development.

When would you want it to return a non-zero value? Is it enough to have 
new untracked files? Or would you want it to return non-zero only if a 
tracked file was modified/deleted or a file was added?

The answer to these questions will vary from hg user to hg user, and so 
it's probably best to parse the output. For example...

hg st|grep -q '^\(M\|D\|R\|!\|C\)'

or something similar...

--Ted

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Ted Pavlic <ted at tedpavlic.com>

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