commit e9a5df0576d660dfc5d1d3e6bbb45406654e7dde
from: Omar Polo <op@omarpolo.com>
date: Tue Aug 10 09:55:34 2021 UTC

make vc-annotate-show-diff-revision-at-line works

Improving vc-got-diff so the diff-at-line works in *Annotate* buffer.

vc-got-diff is still not 100% compliant to the interface thought.  The
``diff against an empty tree'' is still missing.

commit - 7726b6c92c1c3f353d2fa12fc8c2eff2f53fd156
commit + e9a5df0576d660dfc5d1d3e6bbb45406654e7dde
blob - 1da78878697b051a2690304b73c45ec8a9a0b89c
blob + 92b9a8ce21c4aba9e220cf725ed790cd5f299db9
--- vc-got.el
+++ vc-got.el
@@ -698,11 +698,15 @@ Heavily inspired by `vc-git-log-view-mode'."
          (inhibit-read-only t))
     (with-current-buffer buffer
       (vc-got-with-worktree (car files)
-        (cond ((and (null rev1)
-                    (null rev2))
-               (dolist (file files)
-                 (vc-got--diff file)))
-              (t (error "Not implemented")))))))
+        (if (and (null rev1)
+                 (null rev2))
+            (dolist (file files)
+              (vc-got--diff file))
+          ;; TODO: if rev1 is nil, diff from the current version until
+          ;; rev2.
+          ;; TODO: if rev2 is nil as well, diff against an empty tree
+          ;; (i.e. get the patch from `got log -p rev1')
+          (vc-got--diff rev1 rev2))))))
 
 (defun vc-got-annotate-command (file buf &optional rev)
   "Show annotated contents of FILE in buffer BUF.  If given, use revision REV."