ediff-directories - how to ignore timestamps and work recursively

ediff-directories - how to ignore timestamps and work recursively

[Stefan Vollmar]

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Hello,

I want to compare two directories and see what files are different, however, the comparison should ignore timestamps of files. Is there a simple solution?

I had assumed that ediff would also consider files in subdirectories of the directory paths given for comparison. Apparently, it does not do that in Emacs 23.4.1 - is there a "recursive" option?

Many thanks in advance.
Warm regards,
 Stefan
-- 
Dr. Stefan Vollmar, Dipl.-Phys.
Head of IT group
Max-Planck-Institut für neurologische Forschung
Gleueler Str. 50, 50931 Köln, Germany
Tel.: +49-221-4726-213  FAX +49-221-4726-298
Tel.: +49-221-478-5713  Mobile: 0160-93874279
E-Mail: vollmar@nf.mpg.de   http://www.nf.mpg.de









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Re: ediff-directories - how to ignore timestamps and work recursively

[Suvayu Ali]

On Wed, Sep 04, 2013 at 08:06:31AM +0200, Stefan Vollmar wrote:
> Hello,
> 
> I want to compare two directories and see what files are different, however, the comparison should ignore timestamps of files. Is there a simple solution?
> 
> I had assumed that ediff would also consider files in subdirectories of the directory paths given for comparison. Apparently, it does not do that in Emacs 23.4.1 - is there a "recursive" option?
> 

You might have better luck on the emacs list.  That said, did you look
at `ediff-directories'?

Hope this helps,

-- 
Suvayu

Open source is the future. It sets us free.

Re: ediff-directories - how to ignore timestamps and work recursively

[suvayu ali]

On Wed, Sep 4, 2013 at 9:47 AM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote:
>  That said, did you look at `ediff-directories'?

Oops!  I missed the part you already tried it and it doesn't meet your
needs.  Sorry about that.

-- 
Suvayu

Open source is the future. It sets us free.

Re: ediff-directories - how to ignore timestamps and work recursively

[Michael Albinus]

Suvayu Ali <fatkasuvayu+linux@gmail.com> writes:

>> Hello,
>> 
>> I want to compare two directories and see what files are different,
>> however, the comparison should ignore timestamps of files. Is there
>> a simple solution?
>> 
>> I had assumed that ediff would also consider files in subdirectories
>> of the directory paths given for comparison. Apparently, it does not
>> do that in Emacs 23.4.1 - is there a "recursive" option?
>> 
>
> You might have better luck on the emacs list.  That said, did you look
> at `ediff-directories'?

That's also my tool of choice. Combined with the key sequene "= h x",
which shows you only the files which differ.

`ediff-directories' is not recursive, but it gives you also subdirectory
pairs to compare. Just hit enter on such a pair.

As bonus, it even works for remote directories.

Best regards, Michael.

ediff-directories - how to ignore timestamps and work recursively

[Stefan Vollmar]

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Dear Michael,

> From: Stefan Vollmar <vollmar@nf.mpg.de>
> Date: 4. September 2013 08:06:31 MESZ
> To: Org Mode Mailing List <emacs-orgmode@gnu.org>

> Hello,
> 
> I want to compare two directories and see what files are different, however, the comparison should ignore timestamps of files. Is there a simple solution?
> 
> I had assumed that ediff would also consider files in subdirectories of the directory paths given for comparison. Apparently, it does not do that in Emacs 23.4.1 - is there a "recursive" option?


On 04.09.2013, at 09:56, Michael Albinus wrote:

>> You might have better luck on the emacs list.

that was actually what I had in mind, my mistake.

>>  That said, did you look
>> at `ediff-directories'?
> 
> That's also my tool of choice. Combined with the key sequene "= h x",
> which shows you only the files which differ.

that works beautifully, thanks! However, there are a few files in one directory with no corresponding files in the other directory - they are easy to miss in my case (1000+ files). I luckily knew about them so I noticed that ediff-directories does not list them - is that by design?

> `ediff-directories' is not recursive, but it gives you also subdirectory
> pairs to compare. Just hit enter on such a pair.
> 
> As bonus, it even works for remote directories.

- courtesy of the extremely useful tramp-package (which we use every day for editing remote files)?

Warm regards,
 Stefan
-- 
Dr. Stefan Vollmar, Dipl.-Phys.
Head of IT group
Max-Planck-Institut für neurologische Forschung
Gleueler Str. 50, 50931 Köln, Germany
Tel.: +49-221-4726-213  FAX +49-221-4726-298
Tel.: +49-221-478-5713  Mobile: 0160-93874279
E-Mail: vollmar@nf.mpg.de   http://www.nf.mpg.de









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Re: ediff-directories - how to ignore timestamps and work recursively

[Michael Albinus]

Stefan Vollmar <vollmar@nf.mpg.de> writes:

> Dear Michael,

Hi Stefan,

>> That's also my tool of choice. Combined with the key sequene "= h x",
>> which shows you only the files which differ.
>
> that works beautifully, thanks! However, there are a few files in one
> directory with no corresponding files in the other directory - they
> are easy to miss in my case (1000+ files). I luckily knew about them
> so I noticed that ediff-directories does not list them - is that by
> design?

Yes, AFAIK. If you want to have it changed, you might write a wishlist
request via "M-x report-emacs-bug".

>> As bonus, it even works for remote directories.
>
> - courtesy of the extremely useful tramp-package (which we use every
> day for editing remote files)?

Yes :-)

IIRC, we have patched `ediff-same-file-contents' last year in order to
make it working for remote directories. So it might work only for Emacs
24.3 or later.

> Warm regards,
>  Stefan

Best regards, Michael.

Re: ediff-directories - how to ignore timestamps and work recursively

[Suvayu Ali]

Hi Michael,

On Wed, Sep 04, 2013 at 12:34:34PM +0200, Michael Albinus wrote:
> 
> >> As bonus, it even works for remote directories.
> >
> > - courtesy of the extremely useful tramp-package (which we use every
> > day for editing remote files)?
> 
> Yes :-)
> 
> IIRC, we have patched `ediff-same-file-contents' last year in order to
> make it working for remote directories. So it might work only for Emacs
> 24.3 or later.

I feel obligated to mention this: I have used tramp for many years now,
and it never ceases to amaze me how it makes working with remote files
and directories such a pleasure in so many different contexts.

Thanks for that :).

-- 
Suvayu

Open source is the future. It sets us free.