Duplicate directory watching errors using guard

[joe4dev]

Guard cannot cope appropriately with the many symlinks from the .wercker build directory causing duplicate watching errors:

** ERROR: directory is already being watched! **

• The ignore clause cannot be used in the Guardfile
• Many duplicate watches can cause performance issues

This issue is further described in https://github.com/guard/listen/wiki/Duplicate-directory-errors
There seems to be no suitable solution beyond the workarounds:
a) Downgrade to the listen gem 2.7
b) Monkey-path listen to suppress the error message

[inz]

My solution to this is to set $WERCKER_WORKING_DIR to something outside the project directory, i.e. ~/.wercker/projects.

[joe4dev]

Thanks for the hint 👍

Much better, solves the issue.