Re: [vc-git] Showing ‘.git/*’ files in vc-dir

[Eric James Michael Ritz <Eric@cybersprocket.com>]

On 07/04/2010 03:30 PM, Dan Nicolaescu wrote:
> Eric James Michael Ritz <Eric@cybersprocket.com> writes:
>
> [...]
>>
>>  	* generic-x.el (bat-generic-mode): Fix regexp for command line
>> diff --git a/lisp/vc-git.el b/lisp/vc-git.el
>> index 24062a0..ee94ee4 100644
>> --- a/lisp/vc-git.el
>> +++ b/lisp/vc-git.el
>> @@ -171,16 +171,32 @@ If nil, use the value of `vc-diff-switches'.  If t, use no switches."
>>
>>  (defun vc-git-state (file)
>>    "Git-specific version of `vc-state'."
>> -  ;; FIXME: This can't set 'ignored yet
>> -  (if (not (vc-git-registered file))
>> -      'unregistered
>> -    (vc-git--call nil "add" "--refresh" "--" (file-relative-name file))
>> -    (let ((diff (vc-git--run-command-string
>> -                 file "diff-index" "-z" "HEAD" "--")))
>> -      (if (and diff (string-match ":[0-7]\\{6\\} [0-7]\\{6\\} [0-9a-f]\\{40\\} [0-9a-f]\\{40\\} \\([ADMUT]\\)\0[^\0]+\0"
>> -				  diff))
>> -	  (vc-git--state-code (match-string 1 diff))
>> -	(if (vc-git--empty-db-p) 'added 'up-to-date)))))
>> +  ;; A file in a '.git/' directory.
>> +  (cond ((string-match-p  (rx string-start
>> +                              (zero-or-more anything)
>> +                              (optional "/")
>> +                              ".git/"
>> +                              (optional (zero-or-more anything)))
>> +                          file)
>> +         nil)
>
> Nothing else in vc-git.el uses `rx', for consistency it would be
> better to avoid it here too.

Noted.

> Does this work on MS windows too?
> I'd like a second opinion about this: should we go for file name
> matching as above, or just use "git ls-files"?

I have not tried it on Windows, but I will look into it.

Using `git ls-files` could also be possible.  Running something like

    $ git ls-files .git/COMMIT_EDITMSG -t --others

gives us

    ? .git/COMMIT_EDITMSG

`vc-git--state-code` doesn’t know about ‘?’, which just means ‘other’
in Git.  Maybe we should return nil for files with that state code?
That’s one possibility.  But I agree, second opinion from a Git user
would be useful.

>> +        ;; Unregistered or ignored file.
>> +        ((not (vc-git-registered file))
>> +         (if (vc-git-file-is-ignored (file-relative-name file))
>> +             'ignored
>> +           'unregistered))
>> +        (t
>> +         (vc-git--call nil "add" "--refresh" "--" (file-relative-name file))
>> +         (let ((diff (vc-git--run-command-string
>> +                      file "diff-index" "-z" "HEAD" "--")))
>> +           (if (and diff (string-match ":[0-7]\\{6\\} [0-7]\\{6\\} [0-9a-f]\\{40\\} [0-9a-f]\\{40\\} \\([ADMUT]\\)\0[^\0]+\0"
>> +                                       diff))
>> +               (vc-git--state-code (match-string 1 diff))
>> +             (if (vc-git--empty-db-p) 'added 'up-to-date))))))
>> +
>> +(defun vc-git-file-is-ignored (file)
>> +  "Returns non-nil if the `file' is not being ignored."
>> +  (vc-git--run-command-string
>> +   file "ls-files" "--others" "--ignored" "--exclude-standard" "--"))
>>
>>  (defun vc-git-working-revision (file)
>>    "Git-specific version of `vc-working-revision'."
>> --
>> 1.7.2.rc1
>

--
Eric James Michael Ritz
Cyber Sprocket Labs
(843) 225-3830