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- From: moore@src.bae.co.UK (Chris Moore)
- Subject: backup file directory
- Message-ID: <9211092120.AA27386@sun19.src.bae.co.uk>
- Sender: daemon@cis.ohio-state.edu
- Organization: Gatewayed from the GNU Project mailing list help-gnu-emacs@prep.ai.mit.edu
- References: <1992Nov5.161450.16470@ee.eng.ohio-state.edu>
- Date: Mon, 9 Nov 1992 21:20:58 GMT
- Lines: 120
-
-
- jcours@kalman.eng.ohio-state.edu (Jeffrey Cours) said:
-
- > 1) when does the FAQ come out and/or where could I FTP a copy?
-
- From the FAQ:
-
- -----cut-----8<-----here-----8<--------------8<--------------
- 22: Where can I get the latest version of this document (the FAQ list)?
-
- The GNU Emacs FAQ is available in several ways:
-
- * [ section on finding it via USENET deleted, since it's long and you
- probably tried that already ]
-
- * Via anonymous FTP. You can fetch the FAQ articles via anonymous FTP
- (rtfm.mit.edu:pub/usenet/news.answers/GNU-Emacs-FAQ/part?).
-
- * Via e-mail. You can send the following magical incantation in the body
- of a message to mail-server@rtfm.mit.edu:
-
- send usenet/news.answers/GNU-Emacs-FAQ/part0
- send usenet/news.answers/GNU-Emacs-FAQ/part1
- send usenet/news.answers/GNU-Emacs-FAQ/part2
- send usenet/news.answers/GNU-Emacs-FAQ/part3
- send usenet/news.answers/GNU-Emacs-FAQ/part4
- send usenet/news.answers/GNU-Emacs-FAQ/part5
-
- * Via WAIS. The GNU Emacs FAQ is available via WAIS indexed on a
- per-question basis from the `faq' database on bigbird.bu.edu on the
- non-standard IP port number of 2210. This is probably the best way to
- find out if there is something in the FAQ related to your question. I
- use this myself to answer questions I see posted on gnu.emacs.help.
-
- The articles of the GNU Emacs FAQ are also available from the `usenet'
- database on rtfm.mit.edu (on the standard IP port: 210), along with a
- lot of other FAQ articles. However, these are all indexed at the whole
- article level instead of at the question level. This is a better place
- to look if you want to fetch the entire FAQ.
-
- * In the GNU Emacs distribution. Since GNU Emacs 18.56, the latest
- available version of the FAQ at the time of release has been part of the
- GNU Emacs distribution as file etc/FAQ. 18.58 is the latest version,
- and it was released in February 1992.
-
- * As the very last resort, you can e-mail a request to !
- gnu-emacs-faq-maintainers@bigbird.bu.edu. Don't do this unless you have !
- made a serious effort to obtain the FAQ list via one of the methods !
- listed above. !
- -----cut-----8<-----here-----8<--------------8<--------------
-
- > 2) I'm just starting to move over to GNU emacs after spending many
- > years using vi. Unfortunately, I don't know which version of emacs
- > we're using on the Sun's here, or even how to find out the version
- > number from within the program, which may make the answer to this
- > question a little tricky.
-
- M-x emacs-version gives the version.
-
- > Nice as it is to have backups, having
- > all those backup files around tends to clutter up my directories. Is
- > there a relatively simple way to convince emacs to put the backup
- > files in a different directory than the source file, maybe something
- > like ~/backups ? I'd like to keep getting backup files, but I just
- > don't want them getting in the way. Conflicting file names
- > shouldn't be much of a problem since most of what I edit is my own
- > stuff. Is there a variable I could set that prefixes a path name onto
- > the name of any backup file emacs makes?
-
- I hacked together some code a while ago which does a similar thing for me.
- I've only really used version 18.57 and I'm not too clear on the
- differences between the various emacs versions, so I can't say that this
- will necessarily work for you. With my code installed, when it wants to
- create a backup file, emacs will first check the current directory to see
- if it contains a subdirectory called "TILDE" (or any other name, as set by
- the user). If it does, the backups go there, otherwise they go in the
- current directory. This avoids filename clashes, which quite easily result
- even if you only edit your own stuff, since you might have more than one
- file called Makefile, or README, or whatever.
-
- The code works by altering the behaviour of the function
- find-backup-file-name. I use the advise.el package to do this. I don't
- remember where I found that package and it doesn't appear to be in the
- Emacs Lisp Archive - maybe somebody can post a pointer to it. The first
- line of the file is:
-
- ;;; $Header: /tmp_mnt/am/p7/utility/gmacs/f2/RCS/advise.el,v 1.2 89/03/25 14:00:55 kahle Exp $
-
- and the 'NO WARRANTY' paragraph mentions Thinking Machines Corporation.
- Maybe these clues will help you track it down. I can mail you a copy if
- you can't find it any other way.
-
- -----cut-----8<-----here-----8<--------------8<--------------
- (autoload 'advise "advise" "" t)
-
- ;; Where to put backups so our directory is neat and tidy.
- (defvar backup-directory "TILDE"
- "Name of subdirectory in which to save backup files if it exists.")
-
- ;; Change find-backup-file-name to save backups in the subdirectory
- ;; specified by backup-directory if it exists.
- ;;
- ;; Note: you need advise.el. You will need to [auto]load it first.
- ;;
- (advise find-backup-file-name :before
- (if (file-directory-p backup-directory)
- (let ((fn (car arglist)))
- (setq arglist (list (concat (file-name-directory fn)
- backup-directory "/"
- (file-name-nondirectory fn)))))))
- -----cut-----8<-----here-----8<--------------8<--------------
-
- I hope this is useful.
-
- Chris.
- --
- moore@src.bae.co.uk / Chris Moore \
- / Sowerby Research Centre \
- \ British Aerospace PLC /
- tel: +44 272 363375 \ BRISTOL, UK /
-