FEATURE REQ: Make alias for --diff-options

[John A Meinel]

Jari Aalto wrote:
> I find it quite demanding to have to type the extra options
> to diff:
>
>    $ bzr diff --diff-options -bwu -C 5
>
> This is all good for scripts where GNU --long option names are
> designed to be used, but for command line use the short forms are
> needed. Would it be possible to provide shorted form for command line
> use, something like:
>
>    $ bzr diff -o -bwu -C 5
>               |
>               extra options to diff follow
>
>
> Jari
>

As I may have mentioned. One problem is that the short options are
consistent across all commands. So while "-o" makes the most sense to
diff as "--diff-options", it might make more sense as "--output" for
something else. As the interface settles down, I think we'll see more
short options form.

In the mean-time, might I recommend this plugin:

import bzrlib, bzrlib.builtins

class cmd_mydiff(bzrlib.builtins.cmd_diff):
  def run(self, *args, **kwargs):
    kwargs['diff_options'] = '-bwu -C 5'
    super(cmd_mydiff, self).run(*args, **kwargs)

bzrlib.commands.register_command(cmd_mydiff)

Save the above snippet to ~/.bzr.conf/plugins/somefile.py

And then it should be automatically loaded by bzr and allow you to type:

bzr mydiff

Which should set up all the options that you care about. If you *always*
want to use it, you can even name the function "cmd_diff", the namespace
prevents it from being confused, and then just a plain "bzr diff" will
run with your custom options. (If you do overload "bzr diff", then you
can run "bzr --no-plugins diff", or "bzr --builtins diff" to get the
original function).

John
=:->
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