qdiff should have revert options

[Gary van der Merwe]

It would be nice if:

qdiff had the following options:

* Revert all files in the diff.
* Revert a file in the diff.
* Revert a chunk.

These options will only be available if one of the trees is a working tree.
The first two will be easy. Just run bzr revert in a SubProcessWindow.
The 3rd is scary because we will have to write to the file our selfs. Then we have to make sure we handle encoding and line endings correctly. Is there maybe some code in bzrlib that will help us do this?

[Alexander Belchenko (bialix)]

it seems with recent support of external diff viewers this bug is less actual now?

[Craig Hewetson (craighewetson-deactivatedaccount)]

Maybe we can consider this as part of the "qdiff improvements"? The "revert chunk" feature would be especially useful.

[Greg (gregspecialsource)]

Just a comment...

This is very much how I work.
1) Diff to verify changes
2) While verifying changes, need to revert some of them.

External diff viewers (editors) do not currently work well because of the way bzr launches them. They effectively have read but not write access to the working tree.

[Gary van der Merwe (garyvdm)]

Similar to bug 148026