Feedback-ID: ie3de48e3:Fastmail
Date: Tue, 17 Feb 2026 18:10:46 +0100
From: =?utf-8?Q?=C3=81lvaro?= Herrera <alvherre@kurilemu.de>
To: Michael Paquier <michael@paquier.xyz>
Cc: Stefan Kaltenbrunner <stefan@kaltenbrunner.cc>, 
	Tom Lane <tgl@sss.pgh.pa.us>, Aleksander Alekseev <aleksander@timescale.com>, 
	PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Peter Geoghegan <pg@bowt.ie>
Subject: Re: Having problems generating a code coverage report
Message-ID: <202602171700.7764hluoeh23@alvherre.pgsql>
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On 2026-Feb-16, Michael Paquier wrote:

> On Sat, Feb 14, 2026 at 09:04:44AM +0100, Stefan Kaltenbrunner wrote:
> > While I certainly can try to locally hack around that further to get it
> > build it feels wrong to post process/patch our own tree to get "official"
> > coverage reporting...
> 
> Are you using a VPATH build?

Nope, it's a straight in-tree build.  I made it work after a few more
failed tries with a call like

GENHTML_FLAGS="-q --legend --ignore-errors unmapped,corrupt,inconsistent,range"
LCOVFLAGS="-q --legend --ignore-errors usage"
make coverage-html

... and we have a nice (??) trace of what errors are being ignored.  I
think this is absolutely bonkers, but who knows when or if lcov and its
tools are going to be fixed in a way that allows our tree to be
processed correctly.

However, it appears that there are problems with the CSS, because the
lines are not colored anymore.  I have no idea how to get this to work,
but you can see the result running lcov 2.0 in
https://coverage.postgresql.org/

-- 
Álvaro Herrera        Breisgau, Deutschland  —  https://www.EnterpriseDB.com/
"You're _really_ hosed if the person doing the hiring doesn't understand
relational systems: you end up with a whole raft of programmers, none of
whom has had a Date with the clue stick."              (Andrew Sullivan)
https://postgr.es/m/20050809113420.GD2768@phlogiston.dyndns.org