Jonathon Mah wrote:
There could be a character such as ':' that would trigger a
"machine-input" or "long-input" mode, which accepts long command names
which never change. So something like this:
Shall I record this patch? (etc.): :accept
(user input starts here) ^
Other commands could be :reject, :wait, :rejectfile, :acceptfile,
:rejectremaining, :acceptremaining, and so on. This would allow the
human shortcuts to change whilst maintaining compatibility with scripts.
When machine-friendliness is implemented (with whichever method), one
thing _must_ be present right from the beginning: a version flag. That
is, 'darcs record --command-set=1'. This will allow two things:
1) The command set can be changed in the future whilst retaining
backward compatibility with existing scripts (by keeping compatibility
code for old command sets).
2) Backward compatibility could be broken (I'm thinking very far into
the future), and asking for an old command set would generate an error.
This is obviously infinitely more desirable than accepting some old
commands and silently failing on others.
This is an interesting solution. Verbose enough to keep too many future
changes from impacting current applications, but simple enough that even
a human can use it. Basically, to me it seems like a fairly decent
compromise from the XML input idea.
One of the things that I was thinking about when I suggested XML inputs,
and that your idea makes seem even more useful, is that darcs could add
a script-mode where it can access multiple commands at once. In the
case of using something like :commands (which is nicely reminiscent of
vim command mode) the script-mode becomes a mini-shell, which is
interesting.
Based upon your suggestions:
darcs shell
>> record :accept :reject
Some changes to a.txt
>> record :accept
Some more changes to a.txt
>> add somefile.txt
>> record -a
Added somefile
>> push :accept :accept :rejectfile
Of course, I keep joking that what darcs really needs is something of a
small query language. SQL for Darcs, anyone?
--
--Max Battcher--
http://www.worldmaker.net/
"History bleeds for tomorrow / for us to realize and never more follow
blind" --Machinae Supremacy, Deus Ex Machinae, Title Track
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