GNU bug report logs - #20867
24.5; Change behavior of `batch-byte-compile' for directory arguments

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Philipp Stephani <p.stephani2 <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.5; Change behavior of `batch-byte-compile' for directory arguments
Date: Sun, 21 Jun 2015 21:25:04 +0200

The behavior of `batch-byte-compile' differs between file name and
directory arguments: For file name arguments, compilation happens if
NOFORCE is not set, if the destination file doesn't exist, or if it is
older than the source file.  For directories, however, compilations
happens if the destination file already exists *and* it is older than
the source file; NOFORCE is ignored.  This behavior is not documented,
and I find it quite unintuitive.  Please change the behavior for
directories to match the behavior for files.



In GNU Emacs 24.5.1 (x86_64-apple-darwin14.1.0, NS apple-appkit-1344.72)
 of 2015-04-12 on p
Windowing system distributor `Apple', version 10.3.1347
Configured using:
 `configure --prefix=/usr/local/Cellar/emacs/24.5
 --enable-locallisppath=/usr/local/share/emacs/site-lisp
 --infodir=/usr/local/Cellar/emacs/24.5/share/info/emacs
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Message #8 received at 20867 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: 20867 <at> debbugs.gnu.org
Subject: Re: bug#20867: 24.5; Change behavior of `batch-byte-compile' for
 directory arguments
Date: Thu, 01 Aug 2019 23:17:35 +0200

Philipp Stephani <p.stephani2 <at> gmail.com> writes:

> The behavior of `batch-byte-compile' differs between file name and
> directory arguments: For file name arguments, compilation happens if
> NOFORCE is not set, if the destination file doesn't exist, or if it is
> older than the source file.  For directories, however, compilations
> happens if the destination file already exists *and* it is older than
> the source file; NOFORCE is ignored.  This behavior is not documented,
> and I find it quite unintuitive.  Please change the behavior for
> directories to match the behavior for files.

Yes, that's pretty odd behaviour, but I don't think it makes sense to
change it now -- it's been like this for decades.

Instead I've now just explained what it does in the doc string in Emacs
27.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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