format --check just formats your code

[ckipp01]

Version(s)

0.10.0

Describe the bug

When trying to check your sources for formatting with scala-cli --check it just formats your code.

To Reproduce

If you have some code like this

//> using scala "3.1.1"

@main def Main(args: String*): Unit =
            throw new Exception

A format file like this

version = "3.3.3"
runner.dialect = scala3

And you run scala-cli --check it just formats your code.

Expected behaviour
I'd expect this to behave exactly like it does with scalafmt. For example on the same code when I try scalafmt cli I get:

❯ scalafmt --check
--- a/Users/ckipp/Documents/scala-workspace/scala-cli-test/Main.scala
+++ b/Users/ckipp/Documents/scala-workspace/scala-cli-test/Main.scala
@@ -3,2 +3,2 @@
 @main def Main(args: String*): Unit =
-            throw new Exception
+  throw new Exception
error: --test failed

The output of scala-cli format --check should be the same.

[romanowski]

--check is broken for Scala 2 and default scalafmt config - basically it is not implemented properly on our side.

[ckipp01]

--check is broken for Scala 2 and default scalafmt config - basically it is not implemented properly on our side.

Ahh sorry I didn't realize this was a duplicate!

[romanowski]

Do not worry, your report is much more detailed ;)