having a Bitbucket repository, there is a project in a subdirectory that should be built. I'd like to have the wercker.yml in this subdirectory as well.
I tried to add an environment variable WERCKER_ROOT to the pipeline containing the subdirectory: /here-is-werckerfile, according to wercker devcenter which seemed to have no effect.
Any ideas?
As far as I know you can't change this environment. It's not used by wrecker, it's only meant to provide a read only information in case you need to know where your code is located.
To answer your question: once again as far as I know you can't use a wercker.yml from a subdirectory as there's no way to set it's location for wercker - it'll already search for it in your repository root.
edit however you can change the source dir, as mentioned here: http://old-devcenter.wercker.com/articles/steps/variables.html - with the WERCKER_SOURCE_DIR environment, so you can put your wercker.yml in the repo root but use the sub directory for building.