bad_behaviour.rb

@projects_directory = "projects"

# Structure inside "projects" at the moment is:
# projects
# -> proj1
# --> folder1
# --> folder2
# -> proj2
# --> folder1
#

# Return an Array with all the projects path.
def all_projects_paths
  Dir.glob("#{@projects_directory}/*").select {|f| File.directory? f}
end

# Return an Array with all projects components paths.
def all_components_path(component = "*")
  all_projects_path.map do |project|
    #File.join(project, component)
    # Same with this instead:
    Dir.glob("#{@projects_directory}/*/#{component}").select {|f| File.directory? f}
    # If I use `puts` in either option, it will print correct results, but duplicated
  end
end

all_components_path("folder1")

# Returns a two-dimensional array:
# [["projects/proj1/folder1", "projects/proj2/folder1"], ["projects/proj1/folder1", "projects/proj2/folder1"]]
# Instead of an uni-dimensional array:
# ["projects/proj1/folder1", "projects/proj2/folder1"]
#