scala 3 scalafmt

.scalafmt.conf

// this is a very highly opinionated scalafmt file that aligns with
// what I view as most easily readable code style
// the point of this file is not to just make formatting more consistent,
// but enforce that consistency throughout the entire project

// works well with ci/cd actions that do a scalafmt check
// annoy your developers with linters until they break and adopt your code style!

version = 3.8.1
runner.dialect = scala3

align {
  preset = more
  multiline = true
}

maxColumn = 80

assumeStandardLibraryStripMargin = true

indent {
  withSiteRelativeToExtends = 2
  relativeToLhsLastLine = [match, infix]
}

newlines {
  source = unfold

  topLevelStatementBlankLines = [
    {
      blanks = 1
    }
  ]

  beforeMultiline = unfold
  forceBeforeMultilineAssign = any

  beforeCurlyLambdaParams = multilineWithCaseOnly
  implicitParamListModifierForce = [before, after]

  avoidForSimpleOverflow = [slc, punct]

  afterCurlyLambdaParams = squash
}

danglingParentheses {
  defnSite = true
  callSite = true

  ctrlSite = true
  tupleSite = true
}

rewrite {

  rules = [RedundantBraces, RedundantParens, SortModifiers, PreferCurlyFors, Imports]

  redundantBraces {
    stringInterpolation = true
    defnBodies = "noParams"
    maxBreaks = 3
  }

  sortModifiers.preset = styleGuide

  imports {
    sort = scalastyle
    groups = [
      ["cats\\..*"],
      ["^(?!scala|java|volk|cats).*"],
      ["^(?=scala|java).*"],
      ["volk\\..*"],
    ]
  }

  scala3 {
    convertToNewSyntax = true
  }

  trailingCommas {
    style = multiple
  }

}

comments.wrap = standalone

docstrings {
  style = SpaceAsterisk
  removeEmpty = true
  oneline = fold
  blankFirstLine = no
}


spaces {
  beforeContextBoundColon = Always
  inImportCurlyBraces = true
  afterSymbolicDefs = true
  beforeApplyArgInParens = AfterSymbolic
  beforeInfixArgInParens = AfterSymbolic
}

importSelectors = singleLine