Lint seq_len(length(x))

[olivroy]

Should be linted to seq_along(x)

Should not lint:

seq_len(length(x) - 1)

[MichaelChirico]

I agree! would you like to have a shot at writing a PR?

[olivroy]

Thanks for the offer! Maybe in the future. I have too many things at the moment, and I don't know the internals of lintr... But for reference, are there resources you would recommend to learn how to do it?

[IndrajeetPatil]

for reference, are there resources you would recommend to learn how to do it

https://lintr.r-lib.org/articles/creating_linters.html

[MichaelChirico]

that's the right starting point! beyond that the existing linters (and seq_linter() itself) are a great place to start.