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bug#25277: 24.5; Allow predicate, not just Boolean value, for `global-au
From: |
Drew Adams |
Subject: |
bug#25277: 24.5; Allow predicate, not just Boolean value, for `global-auto-revert-ignore-buffer' |
Date: |
Mon, 26 Dec 2016 10:32:17 -0800 (PST) |
Enhancement request. Provide an easy way to specify a predicate that
inhibits (or activates) auto-revert for a given buffer.
See this question, for example:
http://emacs.stackexchange.com/q/29591/105
I provided this answer, but it might be helpful if Emacs provided a
variable whose value is a predicate that determines whether the current
buffer can be auto-reverted. Emacs provides a variable,
`global-auto-revert-ignore-buffer', to test for auto-reversion. In
addition or instead, it could provide a predicate-valued variable.
Simpler, perhaps, is to let the value of
`global-auto-revert-ignore-buffer' be, alternatively, a predicate, which
is called when the buffer is set up (e.g. `after-file-hook', for a file
buffer). The return value would be handled just like the current value
of `global-auto-revert-ignore-buffer' is handled now.
---
(defvar my-max-auto-revert-size 1000000000
"Do not auto-revert file buffers larger than this.")
(add-hook 'find-file-hook
(lambda ()
(when (> (buffer-size) my-max-auto-revert-size)
(setq global-auto-revert-ignore-buffer t))))
(global-auto-revert-mode 1)
In GNU Emacs 24.5.1 (i686-pc-mingw32)
of 2015-04-11 on LEG570
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
`configure --prefix=/c/usr --host=i686-pc-mingw32'
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- bug#25277: 24.5; Allow predicate, not just Boolean value, for `global-auto-revert-ignore-buffer',
Drew Adams <=