Hi,
A little annoyance about "exec" that bothers me is that there is no way to
use "unless"/"onlyif" except with external commands, even if a simple Ruby
function could be used to execute the test.
e.g. "onlyif => 'test -d /data'" will fork and exec "test" to do a simple
stat(2) which can be done with much less overhead with Ruby's
"File.directory?('/data')".
How about allowing passing a none-string value to Exec's onlyif/unless
attributes, and consider that as the result? If it's a string then it will
be treated as today, otherwise it will be treated as a boolean.
I don't think this will break any backward compatibility since all Exec's
currently expect strings to execute.
Cheers,
--Amos
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