scala 3 repl does not work with -cp argument, needs -repl as workaround

[bjornregnell]

Compiler version

3.0.0 and 3.0.1-RC2

Minimized code and output

The repl cannot be started with a -cp argument.

In 3.0.0 using the .zip from the release on Ubuntu:

$ scala -cp "some.jar" 
warning: command option is not correct.

In 3.0.1-RC2 instead of a warning, the -help output is printed.

Expectation

• Should start the repl with "some.jar" on claspath.
• Should work as in Scala 2.

Undocumented workaround:

$ scala -cp "some.jar" -repl

[griggt]

This seems to have been recently fixed, perhaps by #13081?

[bjornregnell]

Fantastic if this is fixed!!! Will the old -repl option hurt after the fix or will that still work?
(I have updated my teaching material in several places to add -repl when -cp and it goes to print hopefully on Monday, students come Aug 30...)

[griggt]

Will the old -repl option hurt after the fix or will that still work?

I just tried it, and it now displays a message on startup: bad option '-repl' was ignored, but otherwise works.

So the situation is:

Scala 3.0.0 through 3.0.2 (forthcoming, RC1 is out): needs the -repl workaround
Scala 3.1.0 (not yet in RC): will have the fix, complains that -repl is a bad option, but works regardless

[bjornregnell]

Thanks @griggt for clarification on versions. (Then I need to decide if I should print as is and make errata or add some kind of footnote with version info or something.)
When might stable 3.1.0 earliest be out on github releases?

[bishabosha]

When might stable 3.1.0 earliest be out on github releases?

If no issues are found with the 3.1.0-RC1 releasing about September 1 then the 3.1.0 final should be about October 13th

[bjornregnell]

@griggt Is "bad option" the right message after fix? I mean: is there any use still for that -repl option or it is eradicated for good from 3.1?

[BarkingBad]

I removed it. Related disscussion is here #13081 (comment)

[bjornregnell]

Great! (I have just added a note in my teaching material that -repl in conjunction with -cp is not needed from Scala 3.1.0. It will be sent to print on sunday...)