GitPod Metals setup

.gitpod.Dockerfile

FROM gitpod/workspace-full
USER gitpod
RUN brew install coursier/formulas/coursier
ENV COURSIER_CACHE /workspace/.coursier/cache/v1

RUN cs setup --yes --jvm 14 --apps sbt-launcher,scala,scalafmt,mill,mill-interactive

.gitpod.yml

image:
  file: .gitpod.Dockerfile
vscode:
  extensions:
    - scala-lang.scala@0.3.9:kklqw+c/dNRmtTU8B5repw==
    - scalameta.metals@1.9.0:EyAIfy0ykjUn9htpw3f7GA==
tasks:
  - init: |
    METALS_VERSION="0.9.0"

    echo "-sbt-dir /workspace/.sbt" >> .sbtopts
    echo "-sbt-boot /workspace/.sbt/boot" >> .sbtopts
    echo "-ivy /workspace/.ivy2" >> .sbtopts

    cs fetch org.scalameta:metals_2.12:$METALS_VERSION

    sbt -Dbloop.export-jar-classifiers=sources bloopInstall
    bloop compile --cascade root
    
  - command: |
    bloop about
  
ports:
  - port: 8212
    onOpen: ignore