Re: Differential Code Coverage report for Postgres

From: Andres Freund <andres(at)anarazel(dot)de>
To: Nazir Bilal Yavuz <byavuz81(at)gmail(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Álvaro Herrera <alvherre(at)kurilemu(dot)de>
Subject: Re: Differential Code Coverage report for Postgres
Date: 2025-09-05 15:14:14
Message-ID: sh4mpv2xzluu5pyl6rkzndjtbm6fpi77aps6iuxadkulv7cx2q@nsnxe2cwy53e
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Hi,

On 2025-09-05 10:09:27 +0300, Nazir Bilal Yavuz wrote:
> I have been working on generating differential code coverage for
> Postgres and was able to do so with this script [1]. The script checks
> out HEAD and the latest release branch (currently REL_18_STABLE), then
> generates a differential coverage report.

I wonder if it'd be better to compare the merge base between master and
REL_18_STABLE, rather than REL_18_STABLE [1].

> I also set up a GitHub Action so the report is updated daily and
> published as HTML here [2].

Nice!

How hard would it be to compare not just REL_18_STABLE and master, but also
REL_17_STABLE and REL_18_STABLE?

Greetings,

Andres Freund

[1] git merge-base master REL_18_STABLE

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