Hi, On Fri, 5 Sept 2025 at 18:14, Andres Freund <and...@anarazel.de> wrote: > > 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].
This looks interesting, I did not know that. I will check this out. > > 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? There are two things: 1- One Github Actions run takes ~50 minutes for now and since this runs daily it is ~1500 minutes in total for a month. If you include manual triggers and failures, it is more than 1500 minutes. Github allows 2000 minutes free usage of Github Actions for a month. So, if we increase the time (by generating another report), then it may exceed the free usage limit. Right now, I install Postgres dependencies on each task; I will work on it to reduce time. 2- If we want to show both reports on the same page, then it may require a bit of HTML coding. I have no experience on that but I do not think it will be hard. -- Regards, Nazir Bilal Yavuz Microsoft
