Feedback-ID: i0fe9450f:Fastmail
Date: Wed, 18 Feb 2026 15:21:21 +0900
From: Michael Paquier <michael@paquier.xyz>
To: =?iso-8859-1?Q?=C1lvaro?= Herrera <alvherre@kurilemu.de>
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: <aZVaYX8_nwdLCadZ@paquier.xyz>
References: <202602171700.7764hluoeh23@alvherre.pgsql>
 <202602171717.ev3v7dmfsvck@alvherre.pgsql>
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On Tue, Feb 17, 2026 at 06:28:24PM +0100, Alvaro Herrera wrote:
> Correction.  These variables are not taken into account if given as
> environment variables, but they are if given as make arguments.
> Moreover, --legend makes lcov die.  So, apparently this one works:
>=20
> make coverage-html LCOVFLAGS=3D"-q --ignore-errors usage" GENHTML_FLAGS=
=3D"-q --legend --ignore-errors unmapped,corrupt,inconsistent,range"
>=20
> I also removed a file called .lcovrc that only had this line
>   lcov_branch_coverage =3D 0
> though that doesn't appear to have automatically added branch coverage
> to the report.  However, I'll wait until the next run to see if anything
> changes.

Based on your ideas, I have been able to get my way through today with
this modified artistic flavor, for a non-VPATH build, in a Fedora
environment:
make coverage-html \
    LCOVFLAGS=3D"-q --ignore-errors gcov,gcov" \
    GENHTML_FLAGS=3D"-q --legend --ignore-errors unmapped,corrupt,unmapped,=
inconsistent"
--
Michael

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