GNU bug report logs - #59115
29.0.50; byte-recompile-directory incorrectly ignoring files

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From: No Wayman <iarchivedmywholelife <at> gmail.com>
To: 59115 <at> debbugs.gnu.org
Subject: bug#59115: 29.0.50; byte-recompile-directory incorrectly ignoring files
Date: Mon, 07 Nov 2022 19:49:58 -0500

[Message part 1 (text/plain, inline)]

Commit 8638aace3fbe01529f33870f469fa60bf5e43ee7
introduced a bug which will cause byte-recompile-directory to 
invert the semantics of the byte-compile-ingore-files option.

To reproduce:

1. mkdir /tmp/bug/ && cd /tmp/bug/
2. Copy an elisp file which would normally be byte-compiled into 
that directory
3. emacs -Q --batch --eval "(byte-recompile-directory 
default-directory 0 'force)"

You should see output similar to:

Checking /tmp/bug...
Done (Total of 0 files compiled)


In general the entire logic of byte-recompile-directory is messy.
Two ifs without elses, lots of negated predicates, etc. I can see 
why the mistake was easy to overlook. This could be further 
refactored to make it easier to read by leveraging when/unless 
appropriately. Perhaps there's an argument for some abnormal hooks 
in place of those long chains of ad-hoc predicates, but I'm more 
interested in fixing the problem now.

The attached patch fixes it for me.

In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.34, cairo version 1.17.6) of 2022-11-07 built on nbook
Repository revision: 35221a7bd55e18244604376497097f4259c7351b
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 
11.0.12101004
System Description: Arch Linux

[0001-bytecomp.el-byte-recompile-directory-Fix-negated-ign.patch (text/x-patch, attachment)]

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