[nongnu] elpa/vc-fossil 2fd4bf0 095/111: Improved vc-dir performance on large repositories.

[ELPA Syncer]

branch: elpa/vc-fossil
commit 2fd4bf0113797fb3155f24087af4e281f8a0d8c3
Author: pdo <pdo>
Commit: pdo <pdo>

    Improved vc-dir performance on large repositories.
    
    Query fossil classification of all managed files up front, instead of
    per-file when "fossil update" says UNCHANGED.
---
 vc/el/vc-fossil.el | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/vc/el/vc-fossil.el b/vc/el/vc-fossil.el
index 7c92165..60e1231 100644
--- a/vc/el/vc-fossil.el
+++ b/vc/el/vc-fossil.el
@@ -216,9 +216,22 @@ Allow user to edit command in minibuffer if PROMPT is 
non-nil."
   "Get fossil status for all files in a directory"
   (vc-fossil--dir-status-files dir nil update-function))
 
+(defvar vc-fossil--file-classifications nil
+  "An alist of (filename . classification) pairs.")
+
+(defun vc-fossil--classify-all-files (dir)
+  (setq vc-fossil--file-classifications nil)
+  (let* ((default-directory dir)
+         (lines (split-string (vc-fossil--run "changes" "--classify" "--all") 
"[\n\r]+" t)))
+    (dolist (line lines)
+      (string-match "^\\(\\w+\\)\\s-+\\(.+\\)$" line)
+      (let ((pair (cons (match-string 2 line) (match-string 1 line))))
+        (push pair vc-fossil--file-classifications)))))
+
 (defun vc-fossil--dir-status-files (dir files update-function)
   "Get fossil status for all specified files in a directory.
 If `files` is nil return the status for all files."
+  (vc-fossil--classify-all-files dir)
   (insert (apply 'vc-fossil--run "update" "-n" "-v" "current"
                  (or files (list dir))))
   (let ((result '())
@@ -235,9 +248,7 @@ If `files` is nil return the status for all files."
             (setq file (file-relative-name file dir))
             ;; if 'fossil update' says file is UNCHANGED check to see if it 
has been RENAMED
             (when (or (not state) (eql state 'up-to-date))
-              (let ((line (vc-fossil--run "changes" "--classify" "--unchanged" 
"--renamed"
-                                          (file-truename file))))
-                (setq state (and line (vc-fossil-state-code (car (split-string 
line)))))))
+              (setq state (vc-fossil-state-code (cdr (assoc file 
vc-fossil--file-classifications)))))
             (push (list file state) result)))
         (forward-line)))
     ;; now collect untracked files
@@ -264,8 +275,6 @@ If `files` is nil return the status for all files."
   (concat (propertize name  'face 'font-lock-type-face)
           (propertize value 'face 'font-lock-variable-name-face)))
 
-(defun vc-fossil-checkout-model (files) 'implicit)
-
 (defun vc-fossil-dir-extra-headers (dir)
   (let ((info (vc-fossil--run "info"))
         (settings (vc-fossil--run "settings"))