Linting error using docker/dockerfile:1.7-labs and COPY --exclude

[joaomorenorf]

I'm using docker/dockerfile:1.7-labs syntax to be able to use COPY --exclude, but the linter doesn't recognize it.

I tried to restart the IDE, but didn't worked.

I'm using:
Visual Studio Code 1.88.0
Docker extension v1.29.0
Docker Desktop 4.28.0

[bwateratmsft]

@rcjsuen is this labs syntax stuff something we even want to support?

[joaomorenorf]

It's in the official documentation:
https://docs.docker.com/reference/dockerfile/#copy---exclude
The labs syntax add only two modifications
https://docs.docker.com/build/dockerfile/release-notes/#labs

[joaomorenorf]

Is there a way of adding a custom rule to ignore this error?

[rcjsuen]

@rcjsuen is this labs syntax stuff something we even want to support?

I added support for this last month (rcjsuen/dockerfile-utils#124) but I need to make a new release of the language server to include the update.

Is there a way of adding a custom rule to ignore this error?

You can try putting # dockerfile-utils: ignore before the error and it should ignore it.

[rcjsuen]

I've published a new 0.12.0 to npm that should fix this issue.