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Scala runner doesn't do executable jars

See original GitHub issue

Compiler version

3.0.0

Minimized code

➜  snips sdk use scala 2.13.6

Using scala version 2.13.6 in this shell.
➜  snips scalac -d hi.jar hi.scala
➜  snips scala hi.jar
hello, world
➜  snips sdk use scala 3.0.0

Using scala version 3.0.0 in this shell.
➜  snips scalac -d hi.jar hi.scala
➜  snips scala hi.jar
Error: Could not find or load main class hi.jar
Caused by: java.lang.ClassNotFoundException: hi.jar
➜  snips scala -classpath hi.jar Main
hello, world

Output

Error: Could not find or load main class hi.jar

Expectation

Scala runner creates and runs an executable jar. It looks like it doesn’t create META-INF/MANIFEST.MF.

Issue Analytics

State:
Created 2 years ago
Comments:11 (4 by maintainers)

Top GitHub Comments

1reaction

dwijnandcommented, Jul 27, 2021

Overlaps with #13081, so either make sure to coordinate with @BarkingBad.

0reactions

anatoliykmetyukcommented, Aug 5, 2021

Yes, we discussed whether we should go Python-style or tolerate @main in scripts earlier. The argument for @main was not only simplicity but also the ability to accept command arguments in a natural way. Another argument was that scripts and programs ideally should be the same thing; we should strive to avoid differentiating between the two. Overall we got the consensus that @main in scripts is fine.

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