Run all JRuby commands from gemset down using --dev flag #4807
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Run all JRuby commands from gemset down using --dev flag. This reduces gemset install
time substantially (50.9s -> 40.5s locally). The rationale
for this change is that short-running JRuby processes should use --dev because
it disables a bunch of optimizations and essentially just runs using the
startup interpreter. This hurts eventual performance but it also speeds up
short-lived processes.
I do not think I did this quite right but I put it in as a starting point.
mpapis helped me find the proper place but I need guidance on proper code
itself.