From 72cfc5fb64a56945a9ba6df6a06cf6cddf480456 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Andr=C3=A9=20Spiegel?= Date: Tue, 3 Oct 2000 12:24:15 +0000 Subject: [PATCH] (vc-transfer-file, vc-default-receive-file): Rewritten to factorize backend-specific code cleanly. (vc-unregister): Function removed. --- lisp/vc.el | 92 ++++++++++++++++++++++++++---------------------------- 1 file changed, 44 insertions(+), 48 deletions(-) diff --git a/lisp/vc.el b/lisp/vc.el index 3984c44470a..4b37dd516db 100644 --- a/lisp/vc.el +++ b/lisp/vc.el @@ -5,7 +5,7 @@ ;; Author: FSF (see below for full credits) ;; Maintainer: Andre Spiegel -;; $Id$ +;; $Id: vc.el,v 1.275 2000/10/03 11:22:13 spiegel Exp $ ;; This file is part of GNU Emacs. @@ -93,7 +93,7 @@ ;; Only required if files can be locked by somebody else. ;; * register (file rev comment) ;; * unregister (file backend) -;; - receive-file (file move) +;; - receive-file (file rev) ;; - responsible-p (file) ;; Should also work if FILE is a directory (ends with a slash). ;; - could-register (file) @@ -1128,15 +1128,6 @@ The default is to return nil always." The default implementation returns t for all files." t) -(defun vc-unregister (file) - "Unregister FILE from version control system BACKEND." - (vc-call unregister file) - (vc-file-clearprops file)) - -(defun vc-default-unregister (backend file) - "Default implementation of `vc-unregister', signals an error." - (error "Unregistering files is not supported for %s" backend)) - (defun vc-resynch-window (file &optional keep noquery) "If FILE is in the current buffer, either revert or unvisit it. The choice between revert (to see expanded keywords) and unvisit depends on @@ -2290,47 +2281,52 @@ base level. If NEW-BACKEND has a lower precedence than the current backend, then commit all changes that were made under the current backend to NEW-BACKEND, and unregister FILE from the current backend. \(If FILE is not yet registered under NEW-BACKEND, register it.)" - (let ((old-backend (vc-backend file))) + (let* ((old-backend (vc-backend file)) + (edited (memq (vc-state file) '(edited needs-merge))) + (registered (vc-call-backend new-backend 'registered file)) + (move + (and registered ; Never move if not registered in new-backend yet. + ;; move if new-backend comes later in vc-handled-backends + (or (memq new-backend (memq old-backend vc-handled-backends)) + (y-or-n-p "Final transfer ? ")))) + (comment nil)) (if (eq old-backend new-backend) - (error "%s is the current backend of %s" - new-backend file) - (with-vc-properties - file - (vc-call-backend new-backend 'receive-file file - ;; set MOVE argument if new-backend - ;; comes later in vc-handled-backends - (memq new-backend - (memq old-backend vc-handled-backends))) - `((vc-backend ,new-backend)))) - (vc-resynch-buffer file t t))) - -(defun vc-default-receive-file (backend file move) - "Let BACKEND receive FILE from another version control system. -If MOVE is non-nil, then FILE is unregistered from the old -backend and its comment history is used as the initial contents -of the log entry buffer." - (let ((old-backend (vc-backend file)) - (rev (vc-workfile-version file)) - (state (vc-state file)) - (comment (and move (vc-call comment-history file)))) - (if move (vc-unregister file)) - (vc-file-clearprops file) - (if (not (vc-call-backend backend 'registered file)) - (with-vc-properties - file - ;; TODO: If the file was 'edited under the old backend, - ;; this should actually register the version - ;; it was based on. - (vc-call-backend backend 'register file rev "") - `((vc-backend ,backend))) - (vc-file-setprop file 'vc-backend backend) - (vc-file-setprop file 'vc-state 'edited) - (set-file-modes file - (logior (file-modes file) 128))) - (when (or move (eq state 'edited)) + (error "%s is the current backend of %s" new-backend file)) + (if registered + (set-file-modes file (logior (file-modes file) 128)) + ;; `registered' might have switched under us. + (vc-switch-backend file old-backend) + (let ((copy (and edited (make-temp-name file))) + (rev (vc-workfile-version file))) + ;; Go back to the base unmodified file. + (unwind-protect + (progn + (when copy (copy-file file copy)) ; (vc-revert-file file)) + ; TODO: uncomment when we + ; have local version caching + (vc-call-backend new-backend 'receive-file file rev)) + (when copy + (vc-switch-backend file new-backend) + (unless (eq (vc-checkout-model file) 'implicit) + (vc-checkout file t nil)) + (rename-file copy file 'ok-if-already-exists))))) + (when move + (vc-switch-backend file old-backend) + (setq comment (vc-call comment-history file)) + (vc-call unregister file)) + (vc-switch-backend file new-backend) + (when (or move edited) (vc-file-setprop file 'vc-state 'edited) (vc-checkin file nil comment (stringp comment))))) +(defun vc-default-unregister (backend file) + "Default implementation of `vc-unregister', signals an error." + (error "Unregistering files is not supported for %s" backend)) + +(defun vc-default-receive-file (backend file rev) + "Let BACKEND receive FILE from another version control system." + (vc-call-backend backend 'register file rev "")) + (defun vc-rename-master (oldmaster newfile templates) "Rename OLDMASTER to be the master file for NEWFILE based on TEMPLATES." (let* ((dir (file-name-directory (expand-file-name oldmaster))) -- 2.39.2