Java properties are not set with -Dkey=value

[lolgab]

In Mill 1.0.0-RC1 if you do mill -Dmyprop=value the property is not set correctly.

//| mill-version: 1.0.0-RC1

println("ivy.home = " + sys.props.get("ivy.home"))

prints:

ivy.home = None

[lolgab]

The syntax is not normal Java syntax but like a Mill command line argument.
mill -D myprop=value or mill --define myprop=value works.

[lefou]

The syntax is not normal Java syntax but like a Mill command line argument. mill -D myprop=value or mill --define myprop=value works.

mill -Dprop=1 should also work in newer Mill versions.

• Since mainargs 0.6.0 - Allow short arguments and flags to be combined mainargs#102
• Used since Mill 0.11.7 - Bump MainArgs to 0.6.1 #2990

[lihaoyi]

@lolgab I put together an integration test, -Dprop=value seems to work correctly at least in the test #5212