feature: add directory argument

[hazcod]

Makes it possible to run the action in a subdirectory.

[hazcod]

CC @mattn @haya14busa

[haya14busa]

IIRC, github-pr-check doesn't work well with subdirectory run.
Can you confirm it works or consider to use golangci_lint_flags to specify sub dir?

Maybe we can improve the document too.

[haya14busa]

Can you specify sub dir like this with golangci_lint_flags?

[hazcod]

Does not seem like it: https://github.com/ironPeakServices/iron-redis/pull/15/checks?check_run_id=331138356

[aslafy-z]

Related issues:
golangci/golangci-lint#828
golangci/golangci-lint#855
golangci/golangci-lint#865
golangci/golangci-lint#870

Is there any way we could add this feature without breaking the github-[pr-]check reporters? We could maybe pass down the sub-path to reviewdog and let him add it to the matched paths?

[aslafy-z]

Here is the workaround I use: https://github.com/aslafy-z/action-golangci-lint/blob/master/entrypoint.sh#L9

[hazcod]

ping @haya14busa

[haya14busa]

github-pr-check doesn't work well with subdirectory run.

As I said, github-pr-check won't work with subdir, so I cannot merge it at this point.

bwt, is it really reproducible with latest reviewdog/golangci-lint binary?

I cloned ironPeakServices/iron-redis and ran following command. It succeeded.

$  golangci-lint run --enable-all ./...   

[hazcod]

@haya14busa seems not with reviewdog/action-golangci-lint@v1.1.3: https://github.com/ironPeakServices/iron-redis/pull/15/checks?check_run_id=377848053
level=error msg="Running error: context loading failed: package github.com/go-redis/redis: no go files to analyze"

[haya14busa]

Can you try v1.1.6 (or v1)?

[hazcod]

Nope with v1.1.6 :/ https://github.com/ironPeakServices/iron-redis/pull/15/checks?check_run_id=377865443

[evanfuller]

any update on whether this will merge?

[samsondav]

We are also seeing this problem.

[haya14busa]

reviewdog can now support sub-dir run for every reporter.
https://github.com/reviewdog/reviewdog/blob/master/CHANGELOG.md#v0100---2020-05-07

LGTM other than nit comment.

[github-actions]

🚀 [bumpr] Bumped! New version:v1.6.0 Changes:v1.5.0...v1.6.0

[review-dog]

Hi, @hazcod! We merged your PR to reviewdog! 🐶
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