Quick Gdiff from a commit view

[raags]

Is there a shortcut to get the Gdiff for a file from the arbitrary commit that I'm looking at.

One use case is to pull changes from a previous commit for a file. For e.g. selectively reverting some change.

One way I could do that is:

1. Gblame on the section of code that I want to check
2. Press enter and open the relevant commit. Also, rebalme to get the previous commit so that Gdiff will work.
3. Use y-<ctrl+g> to yank the commit id
4. Close buffer, navigate to the original file, and use :Gdiffsplit <commit>

Can these steps be shortened with a shortcut in the commit view itself, to get the diff against the current file? Actually, this will need to be the previous commit for Gdiff to work.

[tpope]

After you press enter to open the relevant commit, the cursor should be on the relevant + line in the diff for the file. If you move to a nearby - line and press enter again, it will take you to that line just before it was removed, which is in the previous commit as you desire. Call :Gdiffsplit from there to achieve your desired result.

Edit: If you don't want to seek out a nearby - line (because you're trying to script the whole process, for example), press enter on the + line, and then use :Gedit >!^ to jump back one commit. The ! means "the currently edited file's commit", ^ means "back one" as in Git, and > is a special notation to use the current filename and try to find the same line.

[raags]

Awesome! Is this documented, I couldn't find it the docs.

[tpope]

The individual pieces are, mostly (the explanation of <CR> is rather vague). A bit of a higher level explanation of :Git blame workflow would be nice, but I'm not sure where that should live. At least we have this publicly available discussion now.

[dannobytes]

Amazing 🤩