How to add better copy detection to gitk?

坚强是说给别人听的谎言 提交于 2020-12-07 05:12:14

问题


In command line Git, the show, diff and log commands have got an option to --find-copies-harder.

Is there a way I can tell (or patch) gitk to use this, too? I need this from time to time, and my projects are small enough such that I don't care about the reduced performance.

(I don't want to craft the history to force copy detection any more.)

I noticed that the --find-copies-harder appears within the gitk code, but I don't understand why. So I have tried the command line gitk --all --find-copies-harder, but it didn't work: In a commit with a new file copied from another versioned file, gitk still did not display the fact that this file was copied.

Update: Editing the view by entering --find-copies-harder into the field Additional arguments to git log: also has no effect: A copied (and slightly modified) file is still not shown as copied, while in the command line git show --find-copies-harder it is.


回答1:


That does not seem supported without patching somehow the gitk source code itself.

For example, there was in the Git mailing list a similar request in Feb. 2020

As of commit c1a63459ed73 ("gitk: Preserve window dimensions on exit when not using ttk themes", 2019-12-15, Git v2.29.0-rc0), gitk seems to lack two features that I consider "killer" ones, for reviewing patches (including my own patches, of course):

  • support for the "--function-context" ("-W") option,
  • support for the "-O<orderfile>" (aka "diff.orderFile") setting.

These flags are in fact mentioned in the gitk source code, going back to historical commit ee66e089c1d4 ("gitk: Make updates go faster", 2008-05-09, Git v1.5.6-rc0).

The options are stashed in vdflags($n), and then summarily ignored.
A comment says, "These request or affect diff output, which we don't want", and I don't understand why; I would very much like them, please :)

Could someone please write gitk patches for honoring "diff.orderFile" and "--function-context"?



来源:https://stackoverflow.com/questions/63939606/how-to-add-better-copy-detection-to-gitk

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