[elpa] externals/vc-got 36e5655 1/2: split vc-got--diff into two

[ELPA Syncer]

branch: externals/vc-got
commit 36e5655fd08c7b48c9c8f88467980466053316b1
Author: Omar Polo <op@omarpolo.com>
Commit: Omar Polo <op@omarpolo.com>

    split vc-got--diff into two
    
     - vc-got--diff-files diffs the given files
     - vc-got--diff-objects diffs two refs/tags/objects
    
    Reduces noticeably the time required for diffing multiple files.
---
 vc-got.el | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/vc-got.el b/vc-got.el
index cf555fd..e67ee25 100755
--- a/vc-got.el
+++ b/vc-got.el
@@ -349,14 +349,18 @@ the specified PATHS."
              branch
              (buffer-string)))))
 
-(defun vc-got--diff (&rest files)
-  "Call got diff against FILES.
-The result will be stored in the current buffer."
+(defun vc-got--diff-files (&rest files)
+  "Compute the local modifications to FILES."
   (let (process-file-side-effects)
-    (zerop (vc-got--call "diff"
-                         (vc-switches 'got 'diff)
-                         "--"
-                         (mapcar #'file-relative-name files)))))
+    (zerop (vc-got--call "diff" (vc-switches 'got 'diff) "-P" "--"
+                         files))))
+
+(defun vc-got--diff-objects (obj1 obj2)
+  "Diff the two objects OBJ1 and OBJ2.
+OBJ1 and OBJ2 are interpreted as a reference, tag name, or an
+object ID SHA1 hash."
+  (let (process-file-side-effects)
+    (zerop (vc-got--call "diff" (vc-switches 'got 'diff) "--" obj1 obj2))))
 
 (defun vc-got--unstage (file-or-directory)
   "Unstage all the staged hunks at or within FILE-OR-DIRECTORY.
@@ -745,8 +749,7 @@ Heavily inspired by `vc-git-log-view-mode'."
                                 default-directory)
         (cond ((and (null rev1)
                     (null rev2))
-               (dolist (file files)
-                 (vc-got--diff file)))
+               (apply #'vc-got--diff-files files))
               ((and (null rev1)
                     rev2)
                ;; TODO: this includes the whole diff while to respect
@@ -763,7 +766,7 @@ Heavily inspired by `vc-git-log-view-mode'."
               ;;
               ;; TODO 2: if rev2 is nil as well, diff against an empty
               ;; tree (i.e. get the patch from `got log -p rev1')
-              (t (vc-got--diff rev1 rev2)))))))
+              (t (vc-got--diff-objects rev1 rev2)))))))
 
 (defun vc-got-revision-completion-table (_files)
   "Return a completion table for existing revisions.