Re: [Question] How to fix 'static-analysis' build on Ubuntu 20.04

> On Mon, Aug 22, 2022 at 11:19:11AM -0400, Derrick Stolee wrote:
>> While preparing my latest series, I noticed that the GitHub Actions CI
>> builds were cancelling the 'static-analysis' job because of a brownout of
>> Ubuntu 18.04. We are recommended to upgrade to 20.04.
>>
>> However, we explicitly chose 18.04 in d051ed77ee6
>> (.github/workflows/main.yml: run static-analysis on bionic, 2021-02-08)
>> because coccinelle was not available in 20.04. It still isn't available
>> since I tried the basic update and it failed [1]
>>
>> [1] https://github.com/gitgitgadget/git/runs/7955077955?check_suite_focus=true#step:3:98
>>
>> Does anyone have an idea of how to install coccinelle on this newer
>> version? 
> 
> Containers?  I've built Docker containers from most recent Coccinelle
> versions and used to use them in my custom Travis CI build jobs; the
> version included in Ubuntu 18.04 is rather old, and apparently it
> doesn't catch some transformations that later versions do [1].  I'm
> sure it's somehow possible to use such containers in GitHub Actions as
> well.
> 
>> Should we try compiling it from source for this job?
> 
> It's not that difficult to build Coccinelle from source once you
> figure out its OCaml dependencies...  And luckily those dependencies
> seem to be rather stable: we can pass the same dozen or so package
> names to 'apt-get' to install all its build dependencies both on
> ubuntu:18.04 and :20.04 base images.

> However, installing dependencies and building Coccinelle takes almost
> 5 minutes on my machine; I don't think we'd want to add that much
> overhead to every CI build.
> 
>> Should we
>> consider moving off of coccinelle and onto a different tool?
> 
> Is there any other comparable tool out there?!