add support for --external-grep

[Parth Malwankar]

 Martin Pool wrote on 2010-02-26

On 26 February 2010 16:54, Parth Malwankar <email address hidden> wrote:
>
>
>> It would be nice to also have the option to pipe files through an
>> external grep so people can get extra features from grep.
>> --
>> Martin <http://launchpad.net/~mbp/>
>
> Sounds like a good idea. '--cat-only'.

Well, actually I meant --external-grep=PROG, and then that can be run
for each file, using eg gnu grep's --label argument to indicate which
version of which file it is.

--
Martin <http://launchpad.net/~mbp/>

[Parth Malwankar (parthm)]

There is an initial implementation in the attached branch. I initially stared doing this so that --color could be made available with an external grep but found this option to be slow as grep needs to be launched multiple files with a separate --label for each file. So I am just going to put this as confirmed now that --color is directly supported in bzr-grep.