Reading standard input from plugins does not work

[sdaschner]

When using mvnd with a Quarkus 2.X project, the output looks different to what I'm used to with mvn.

More importantly, the keyboard input doesn't work. Is there something I need to configure?

See the two screenshots for a comparison:

mvnd (version 0.7.1-linux-amd64):

mvn:

[gnodet]

Interactions using the keyboard are currently only supported for maven plugins which use the plexus interaction layer. The System.in input stream is currently not redefined on the daemon, also, the client does read the keyboard and perform specific tasks using the +, -, <enter>, Ctrl+L keys, and we'd have to add a mode to switch between local / remote input. It may be done automatically if we detect the daemon process is trying to read from the input stream, but that's definitely not a trivial thing to implement.

For the stream decoration (i.e., the [info][stdout] prependeded to the output), you can use the --raw-streams option which should get rid of those. Ideally, this could be configured in .mvn/mvnd.properties but this is currently only a command line option).

[gnodet]

Fwiw, quarkus uses low level terminal interactions to set up the console support, however, there's no terminal in the daemons. At the OS level, the daemon process input stream is not used at all and the output/error streams are redirected to files. Inside the JVM, the output/error are conveyed back to the client, and the input is currently not supported. Supporting redirecting input from the client to the daemon is doable, but setting up a terminal, while in theory doable, would require additional native methods not provided by jansi at the moment (such as dup2) and thus not doable right now.