command that batches bzr and qbzr commands

[Michael Gliwinski]

On Tuesday 27 Jul 2010 15:55:21 John Arbash Meinel wrote:
...
> >>> Basically an example of what I'm trying to do is write a command which
> >>> downloads some files, imports them (like bzrtools' import) and then
> >>> launches a qcommit dialog pre-filled with certain message and author,
> >>> etc.
...
> >> Many plugins already do this. You may want to look at some of them,
> >> because sometimes the setup rules have been a bit unclear. (Some setup
> >> code expected run_argv_aliases() to be called, which usually doesn't
> >> happen when running from another command). However that might have been
> >> sorted out.
> > 
> > OK, I'll look into that.  Would you remember off top of your head an
> > example of one such plugin by any chance?
> 
> IIRC bzrtools's cbranch command calls cmd classes directly.

Thanks.

...
> > So now I'm trying to figure out how to use QBzr's CommitWindow from my
> > command without inheriting from QBzrCommand (I still want the import to
> > run without GUI, but if GUI is available then offer the option of using
> > it).  If anyone has any pointers on that BTW, I'd really appreciate them
> > (I had a look at the now disabled merge --qpreview which seemed to do
> > sth like that but it seems approach used there wouldn't work anymore).

BTW, in case it's useful to anyone I got this working with something like that 
(the import stuff is based on colo plugin)::

qbzr = None
try:
    import bzrlib.plugins.qbzr as qbzr
except ImportError:
    pass

class NoQBzrError(errors.BzrCommandError):
    _fmt = '%(name)s requires the qbzr plugin.'

class cmd_foo(Command):
    def run(self, directory=None, commit=False):
        # do stuff

        if commit:
            if qbzr is None:
                raise NoQBzrError(name='commit option')

            from bzrlib.plugins.qbzr.lib.commands import QBzrCommand

            QBzrCommand.run.im_func(self, directory=directory)

    def _qbzr_run(self, directory=None):
        from bzrlib.plugins.qbzr.lib.commit import CommitWindow

        if not directory:
            directory = u'.'

        tree = WorkingTree.open(directory)
        selected_list = None

        self.main_window = CommitWindow(tree, selected_list, dialog=False)
        # set some properties, e.g.
        self.main_window.message.setText('foo')

        self.main_window.show()
        self._application.exec_()


It works by invoking QBzrCommand.run function with regular bzr Command 
instance as self.  Possibly not the best way if QBzrCommand class was more 
complex.  I'm also toying with the idea of having different parent depending 
if QBzr is available.

> Sure. You may also want to look for us on irc.freenode.net #bzr. People
> tend to hang out there, and you may get faster response times.

Thanks, will pop in sometime.


-- 
Michael Gliwinski
Henderson Group Information Services
9-11 Hightown Avenue, Newtownabby, BT36 4RT
Phone: 028 9034 3319

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