Merge branch 'jc/autogc'

[git.git] / contrib / emacs / git.el

diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el
index ec2e699061ab5658903ee4d9406b13321d286356..4286d160a02bdbeff272cc306ab01b85b87b8cbe 100644 (file)
--- a/contrib/emacs/git.el
+++ b/contrib/emacs/git.el
@@ -36,7 +36,6 @@
 ;; TODO
 ;;  - portability to XEmacs
 ;;  - better handling of subprocess errors
-;;  - hook into file save (after-save-hook)
 ;;  - diff against other branch
 ;;  - renaming files from the status buffer
 ;;  - creating tags
@@ -485,14 +484,15 @@ and returns the process output as a string."
   "Remove everything from the status list."
   (ewoc-filter status (lambda (info) nil)))
 
-(defun git-set-files-state (files state)
-  "Set the state of a list of files."
-  (dolist (info files)
-    (unless (eq (git-fileinfo->state info) state)
-      (setf (git-fileinfo->state info) state)
-      (setf (git-fileinfo->rename-state info) nil)
-      (setf (git-fileinfo->orig-name info) nil)
-      (setf (git-fileinfo->needs-refresh info) t))))
+(defun git-set-fileinfo-state (info state)
+  "Set the state of a file info."
+  (unless (eq (git-fileinfo->state info) state)
+    (setf (git-fileinfo->state info) state
+          (git-fileinfo->old-perm info) 0
+          (git-fileinfo->new-perm info) 0
+          (git-fileinfo->rename-state info) nil
+          (git-fileinfo->orig-name info) nil
+          (git-fileinfo->needs-refresh info) t)))
 
 (defun git-status-filenames-map (status func files &rest args)
   "Apply FUNC to the status files names in the FILES list."
@@ -511,14 +511,7 @@ and returns the process output as a string."
 (defun git-set-filenames-state (status files state)
   "Set the state of a list of named files."
   (when files
-    (git-status-filenames-map status
-                              (lambda (info state)
-                                (unless (eq (git-fileinfo->state info) state)
-                                  (setf (git-fileinfo->state info) state)
-                                  (setf (git-fileinfo->rename-state info) nil)
-                                  (setf (git-fileinfo->orig-name info) nil)
-                                  (setf (git-fileinfo->needs-refresh info) t)))
-                              files state)
+    (git-status-filenames-map status #'git-set-fileinfo-state files state)
     (unless state  ;; delete files whose state has been set to nil
       (ewoc-filter status (lambda (info) (git-fileinfo->state info))))))
 
@@ -801,7 +794,7 @@ Return the list of files that haven't been handled."
                             (condition-case nil (delete-file ".git/MERGE_HEAD") (error nil))
                             (condition-case nil (delete-file ".git/MERGE_MSG") (error nil))
                             (with-current-buffer buffer (erase-buffer))
-                            (git-set-files-state files 'uptodate)
+                            (dolist (info files) (git-set-fileinfo-state info 'uptodate))
                             (git-call-process-env nil nil "rerere")
                             (git-refresh-files)
                             (git-refresh-ewoc-hf git-status)
@@ -1352,9 +1345,24 @@ Commands:
         (cd dir)
         (git-status-mode)
         (git-refresh-status)
-        (goto-char (point-min)))
+        (goto-char (point-min))
+        (add-hook 'after-save-hook 'git-update-saved-file))
     (message "%s is not a git working tree." dir)))
 
+(defun git-update-saved-file ()
+  "Update the corresponding git-status buffer when a file is saved.
+Meant to be used in `after-save-hook'."
+  (let* ((file (expand-file-name buffer-file-name))
+         (dir (condition-case nil (git-get-top-dir (file-name-directory file))))
+         (buffer (and dir (git-find-status-buffer dir))))
+    (when buffer
+      (with-current-buffer buffer
+        (let ((filename (file-relative-name file dir)))
+          ; skip files located inside the .git directory
+          (unless (string-match "^\\.git/" filename)
+            (git-call-process-env nil nil "add" "--refresh" "--" filename)
+            (git-update-status-files (list filename) 'uptodate)))))))
+
 (defun git-help ()
   "Display help for Git mode."
   (interactive)