New container linting causes index-error unless container spreads over 3 lines

[awgymer]

Description of the bug

Reported on Slack:

286 │   │   if l.startswith("container"):                                  │
287 │   │   │   container_section = l + lines[i + 1] + lines[i + 2]        │
288 │   │   │   if container_section.count('"') > 2:                       │

IndexError: list index out of range

This assumption works fine for modules that adhere strictly to the nf-core template but if the module has fewer than 3 lines for the container directive this will error or perhaps worse capture lines of other directives.

This affects local modules which might feasibly and legitimately have e.g. only a docker

container "my.dockerhub.url/mycontainer:tag"

Command used and terminal output

No response

System information

nf-core toools v2.7