calling other bzr commands from with a plugin

[Aaron Bentley]

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Jamie Wilkinson wrote:
| What's the correct procedure for calling other Commands from within a
| plugin?

Calling other commands is almost never the right thing, because commands
are usually intended to be user-facing, and what you want is usually
precision, object reuse, etc.  So it's usually better to call whatever
the command itself calls.

I suppose you can call the command's run method, if you really insist.

| Specifically, I want to call Aaron's 'patch' command from bzrtools, but
| without shelling out to os.system.

I'd suggest invoking bzrlib.plugins.bzrtools.patch.patch().  It might
make sense to test whether bzrtools exists, first.

Aaron
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