Ability to filter list options.
Review Request #3997 — Created June 11, 2016 and submitted — Latest diff uploaded
|nhoward_tw, stuhood, zundel|
Generalizes the "EXTEND" functionality of ListValueComponent to "MODIFY". Each ListValueComponent now stores a list of appends and a list of filters, and these get applied when the final
Introduces two new forms of syntax for values of list options:
- -['foo', 'bar'] filters those values from the running list computation.
- ...,...,... splits the value on the commas and merges the results of evaluating the ....
The latter allows you to both append to and filter a list in, say, pants.ini:list_option: -[1,2,3],+[4,5,6]
Added tests of the new syntax and functionality. All options tests pass. Full CI running here: http://jenkins.pantsbuild.org/job/pantsbuild/job/pants/branch/PR-3583/