Bitbucket Server code report fails when using subpath

[lgellrich]

Hi,

I found this project just yesterday and got very curios to give it a try 😄
So while playing around today I got to the point where I had some reports to add to a Bitbucket Server instance from a Jenkins job.

But unfortunately I ran into the following issue:

$ export CI_PULL_REQUEST=14
$ export CI_REPO_OWNER=haya14busa
$ export CI_REPO_NAME=reviewdog
$ export CI_COMMIT=$(git rev-parse HEAD)
$ export BITBUCKET_USER="my_user"
$ export BITBUCKET_PASSWORD="my_password"
$ export BITBUCKET_SERVER_URL="https://bitbucket.my-company.com/bitbucket"
$ reviewdog -reporter=bitbucket-code-report
2022/02/16 22:15:05 reviewdog: [start]  runner=eslint
2022/02/16 22:15:05 reviewdog: [finish] runner=eslint
reviewdog: failted to delete code insights report: bitubucket API error: 405 Method Not Allowed

After cloning the project locally and enabling debugging of the Bitbucket API client I found that requests were using the wrong URL.
The calls were made to https://bitbucket.my-company.com/rest/... instead of the expected URL https://bitbucket.my-company.com/bitbucket/rest/....

The reason seems to be that the path portion is dropped within this function:

reviewdog/service/bitbucket/server_api_context.go

Lines 43 to 58 in 49afd38

	// WithServerVariables adds server variable to context
	func withServerVariables(ctx context.Context, bbURL string) (context.Context, error) {
	parsed, err := url.Parse(bbURL)
	if err != nil {
	return ctx, fmt.Errorf("failed to parse Bitbucket Server URL: %w", err)
	}
	return context.WithValue(
	ctx,
	insights.ContextServerVariables,
	map[string]string{
	"protocol": parsed.Scheme,
	"bitbucketDomain": parsed.Host,
	},
	), nil
	}

Unfortunately the error message does not indicate which server or at least service is used in regards to URL or Bitbucket Cloud vs. Bitbucket Server.
I suspected first that I was talking to Bitbucket Cloud by accident due to a wrong configuration.

reviewdog version: v0.14.0