Re: [PATCH] vc-bzr.el: avoid stomping files across hardlink branches.

[Karl Fogel]

Stefan Monnier <address@hidden> writes:
>>>> Can we at least have an option to have emacs break hard links on edit?
>>> Yes, that would be good.  It should work regardless of VC.  People using
>>> hardlinked trees would know to use it.
>> So a variable, something like this?:
>
>>    break-hardlinks-on-edit
>
>>    "*When saving a file that exists under several names (i.e., has
>>     multiple hardlinks), break the hardlink associated with
>>     `buffer-file-name' and write to a new file, so that the other
>>     instances of the file are not affected by the edits.
>>     If `buffer-file-name' refers to a symlink, do not break the
>>     symlink."
>
>> I'm happy to write this, just want to make sure I'm headed down the
>> right design path.
>
> That sounds good.

This is done now, in rev 1.14881 of lisp/files.el.  (Except I went with
the singular `break-hardlink-on-save', since it only breaks one hardlink
at a time.)

-Karl