Add Support for Loading Files Dereferenced from Environmental Variable

[cancan101]

That way this will work:

 file('env://MY_INPUT_FILE')

and will load whatever the value of MY_INPUT_FILE is set to in the environment.

[pditommaso]

Environment variables are accessible from a nextflow script. For example you can write:

file_in_my_home = file("$HOME/my_input_file.txt")

Does this solve your problem?

[cancan101]

Yes, I believe it does.

[pditommaso]

Nice. Note that are also available the following two implicit variables:

• baseDir: the path of the folder where the main pipeline script is located.
• workDir: the path to the pipeline working directory i.e. scratch area