Command Cheatsheet
sbt commands
Below is a cheat sheet of some frequently used commands to be used from SBT console – sbt.
| Command | Description |
|---|---|
scala3/scalac |
Run the compiler directly, with any current changes. |
scala3/scala |
Run the main method of a given class name. |
scalac ../issues/Playground.scala |
Compile the given file – path relative to the Dotty directory. Output the compiled class files to the Dotty directory itself. |
scala Playground |
Run the compiled class Playground. Dotty directory is on classpath by default. |
repl |
Start REPL |
scala3/scalac -print-tasty Foo.tasty |
Print the TASTy of top-level class Foo |
scala3-bootstrapped/test |
Run all tests for Scala 3. (Slow, recommended for CI only) |
scala3-bootstrapped/publishLocal |
Build Scala 3 locally. (Use to debug a specific project) |
testOnly dotty.tools.dotc.CompilationTests -- *pos |
Run test (method) pos from CompilationTests suite. |
testCompilation sample |
In all test suites, run test files containing the word sample in their title. |
scala3-compiler/Test/runMain dotty.tools.printTypes |
Print types underlying representation |
scaladoc/generateScalaDocumentation |
Build the documentation website (published to https://dotty.epfl.ch) |
scaladoc/generateReferenceDocumentation |
Build the reference documentation website (published to https://docs.scala-lang.org/scala3/reference) |
Shell Commands
Below is a cheat sheet of some frequently used commands to be used from your shell.
| Command | Description |
|---|---|
rm -rv *.tasty *.class out || true |
clean all compiled artifacts, from root dotty directory |
git clean -fdx |
a full clean of all files in the codebase not tracked by git |
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