What is the executable for Linux?

[fhuonder]

Hi

What do I have to configure for the google-java-format.executable-path for linux?
There is no apt or snap package of the google-java-format. Only the JAR file.

Regards,
Florian

[crdrost]

Great question!

Given a JAR you'll want to provide a script to glue the two together. For example on my OSX I have the google-java-format installed in ~/.local/lib and a script at ~/.local/bin/google-java-format which contains

#!/bin/bash
export JAVA_HOME="${JAVA_HOME:-/usr/local/opt/openjdk/libexec/openjdk.jdk/Contents/Home}"
exec "${JAVA_HOME}/bin/java" \
  --add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED \
  --add-exports jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED \
  --add-exports jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED \
  --add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED \
  --add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED \
  -jar "/Users/crdrost/.local/lib/google-java-format-1.10.0-all-deps.jar" "$@"

Of course that first line won't work for you directly but,

• fill in the appropriate paths for your distro
• fill in your JAVA_HOME and your path/to/google-java-format.jar
• don't forget the hashbang line up-top , the --add-exports are only for if you're running on newer JDKs (see below)
• and don't forget to chmod +x the file,

and then Linux will treat it like any other executable.

Be aware also that it's in the code of ilkka/vscode-google-java-format that if anything appears on stderr then the file won't be reformatted. This bit me with an Illegal Reflective Access notification, which is why I added all of the --add-exports lines above (see the google-java-format v1.10.0 release notes).

[lucidfrontier45]

I suggest you use GraalVM to create a native binary. It is easier to use and has much less startup overhead.
I created build scripts and also hosted prebuild binary for Windows and Linux x86_64.
https://github.com/lucidfrontier45/google-java-format-native