From: Joey Hess <joeyh@joeyh.name>
Date: Sun, 28 Oct 2018 22:57:45 +0000 (-0400)
Subject: aggregate: Fix aggregation of posts without a title
X-Git-Tag: 3.20190207~92
X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/commitdiff_plain/0ec2c55ac097d28032fefe7f898db46b0eba305d?hp=0ec2c55ac097d28032fefe7f898db46b0eba305d

aggregate: Fix aggregation of posts without a title

When an aggregated post lacked a title, the code first prepended the
$feed->{dir} to it, and only then checked if it had zero length. So,
that check could never succeed and it was possible to end up with
$page="dir/", and writing to that would of course fail.

(Same problem could also occur when the whole title got sanitized away by the
wiki_file_regexp.)

Fixed by simply checking earlier if $page is empty.

Based on a patch by Alexandre Oliva which got lost in a maze of email
folders all alike for over two years despite him mentioning it to me at
least once in person.
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