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Custom list in .buckconfig?

I would like to have a property in my .buckconfig that is a custom list of strings. From the docs, I understand that this is supported.

Here is my .buckconfig: 

[custom]
  key = a b c

Here is my BUCK file (for testing): 

print read_config('custom', 'key')
# etc...

Ultimately I would like to use read_config('custom', 'key') to generate the deps list of a target.

But when I build, I get this error: 

$ buck run :app
Warning raised by BUCK file parser: a b c

What is the error here? How can I fix it?

Solution

  • For better or worse, Buck parses the build file as python (with the python interpreter). Because you used print, it's messing up that output (either BSER or JSON) so the build file cannot be parsed.