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Diffstat (limited to 'lisp/vc-dispatcher.el')
| -rw-r--r-- | lisp/vc-dispatcher.el | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lisp/vc-dispatcher.el b/lisp/vc-dispatcher.el index b2484ec6b75..6dd459ddf74 100644 --- a/lisp/vc-dispatcher.el +++ b/lisp/vc-dispatcher.el @@ -1602,5 +1602,73 @@ U - if the cursor is on a file: unmark all the files with the same VC state (put 'vc-dir-mode 'mode-class 'special) +(defun vc-dispatcher-browsing () + "Are we in a directory browser buffer?" + (or vc-dired-mode (eq major-mode 'vc-dir-mode))) + +(defun vc-dispatcher-selection-set (eligible + &optional + allow-directory-wildcard + allow-inegible + include-files-not-directories) + "Deduce a set of files to which to apply an operation. Return the fileset. +If we're in VC-dired mode, the fileset is the list of marked files. +Otherwise, if we're looking at a buffer for which ELIGIBLE returns non-NIL, +the fileset is a singleton containing this file. +If neither of these things is true, but ALLOW-DIRECTORY-WILDCARD is on +and we're in a dired buffer, select the current directory. +If none of these conditions is met, but ALLOW-INELIGIBLE is on and the +visited file is not registered, return a singleton fileset containing it. +If INCLUDE-FILES-NOT-DIRECTORIES then if directories are marked, +return the list of VC files in those directories instead of +the directories themselves. +Otherwise, throw an error." + (cond + ;; Browsing with dired + (vc-dired-mode + (let ((marked (dired-map-over-marks (dired-get-filename) nil))) + (if marked + marked + (error "No files have been selected.")))) + ;; Browsing with vc-dir + ((eq major-mode 'vc-dir-mode) + (or + (if include-files-not-directories + (vc-dir-marked-only-files) + (vc-dir-marked-files)) + (list (vc-dir-current-file)))) + ;; Visiting an eligible file + ((funcall eligible buffer-file-name) + (list buffer-file-name)) + ;; No eligible file -- if there's a parent buffer, deuce from there + ((and vc-parent-buffer (or (buffer-file-name vc-parent-buffer) + (with-current-buffer vc-parent-buffer + (vc-dispatcher-browsing)))) + (progn + (set-buffer vc-parent-buffer) + (vc-dispatcher-selection-set))) + ;; No parent buffer, we may want to select entire directory + ;; + ;; This is guarded by an enabling arg so users won't potentially + ;; shoot themselves in the foot by modifying a fileset they can't + ;; verify by eyeball. Allow it for nondestructive commands like + ;; making diffs, or possibly for destructive ones that have + ;; confirmation prompts. + ((and allow-directory-wildcard + ;; I think this is a misfeature. For now, I'll leave it in, but + ;; I'll disable it anywhere else than in dired buffers. --Stef + (and (derived-mode-p 'dired-mode) + (equal buffer-file-name nil) + (equal list-buffers-directory default-directory))) + (progn + (message "All eligible files below %s selected." + default-directory) + (list default-directory))) + ;; Last, if we're allowing ineligible files and visiting one, select it. + ((and allow-ineligible (not (eligible buffer-file-name))) + (list buffer-file-name)) + ;; No good set here, throw error + (t (error "No fileset is available here.")))) + ;; arch-tag: 7d08b17f-5470-4799-914b-bfb9fcf6a246 ;;; vc-dispatcher.el ends here |