.scalafmt.conf

#
#  Copyright (c) 2020 BusyMachines
#
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#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
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#      http://www.apache.org/licenses/LICENSE-2.0
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#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
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# See https://scalameta.org/scalafmt/docs/configuration.html for details,
# mostly done by trial and error. But I guess this formatting is "good enough"
#

#https://github.com/scalameta/scalafmt/releases
version = 2.7.5

project {
  #if you don't specify that files ending in .scala .sbt with $,
  # .scalafmt.conf is included in the formatting attempt
  includeFilters = [
    ".*.\\.scala$"
    ".*\\..sbt$"
  ]
}

maxColumn = 120

# Note. Only for the truest vertical aligners. This is a new option,
# feel free to open PR enabling more crazy vertical alignment here.
# Expect changes.
align = most
align.openParenCallSite = false
align.openParenDefnSite = false
align.multiline = true

align.tokens.add = [

  {code = "<-", owner = "Enumerator.Generator"}
  //Everything before the Term.Assign was the default regex. To find the
  //default value, look through the code here:
  //https://github.com/scalameta/scalafmt/blob/master/scalafmt-core/shared/src/main/scala/org/scalafmt/config/Align.scala
  {code = "=", owner = "(Enumerator.Generator|Val|Defn.(Va(l|r)|Def|Type))|Term.Assign"}

  //used to align comments
  "//"

  //used for aligning type definition
  ":"

  //used when creating tuples
  {code = "->", owner = "Term.ApplyInfix"},

  //sbt specific
  {code = "%", owner = "Term.ApplyInfix"},
  {code = "%%", owner = "Term.ApplyInfix"}
  {code = "%%%", owner = "Term.ApplyInfix"}
  {code = ":=", owner = "Term.ApplyInfix"}
  {code = "withSources", owner = "Term.ApplyInfix"}
  "extends"
]

continuationIndent {
  callSite = 2
  defnSite = 2
  ctorSite = 2
  extendSite = 2
  withSiteRelativeToExtends = 0
}

verticalMultiline.atDefnSite = false
verticalMultiline.newlineAfterOpenParen = true
verticalMultiline.arityThreshold = 3

newlines {
  alwaysBeforeTopLevelStatements = true
  sometimesBeforeColonInMethodReturnType = true
  penalizeSingleSelectMultiArgList = false
  alwaysBeforeElseAfterCurlyIf = true
  neverInResultType = false
  alwaysBeforeMultilineDef = false
  implicitParamListModifierForce = []
  afterCurlyLambda = squash
}

spaces {
  afterKeywordBeforeParen = true
}

binPack {
  parentConstructors = true
  literalArgumentLists = true
  literalsMinArgCount = 5
}


optIn {
  breaksInsideChains = false
  //preserves existing newlines in . chain calls.
  //See: optIn.breakChainOnFirstMethodDot = true
  breakChainOnFirstMethodDot = true
  blankLineBeforeDocstring = true
}

rewrite {
  rules = [
    SortImports
    SortModifiers
    # if your for has more than one single <- then it gets transformed into a multit-line curly brace one
    PreferCurlyFors
    AvoidInfix
    RedundantBraces
    RedundantParens
  ]
}

rewrite.redundantBraces.generalExpressions = false
rewrite.redundantBraces.methodBodies = true
rewrite.redundantBraces.includeUnitMethods = false
rewrite.redundantBraces.stringInterpolation = true
rewrite.redundantBraces.parensForOneLineApply = true

#we only really want to disable infix notation
# for map and flatMap and the like, because it
# kills IDE performance and type inference
rewrite.neverInfix.excludeFilters = [
  until
  to
  by
  eq
  ne
  "should.*"
  "contain.*"
  "must.*"
  in
  be
  of # behaviour of ("X")
  taggedAs
  thrownBy
  synchronized
  have
  when
  size
  theSameElementsAs
  withSources
]

preset = default
danglingParentheses.preset = true

assumeStandardLibraryStripMargin = true
includeNoParensInSelectChains = false
includeCurlyBraceInSelectChains = true
trailingCommas = multiple


runner {
  optimizer {
    # Set to -1 to disable. Increase number to require bigger argument bodies to trigger flag
    # presumably, this number is number of characters.
    forceConfigStyleOnOffset = 150

    # minimum number of func arguments before config-style (look at top of file) is enabled
    forceConfigStyleMinArgCount = 2
  }
}