Added scalafmt configuration and applied

.github/workflows/ci.yml

@@ -64,9 +64,9 @@ jobs:
       - name: Start up test databases
         run: docker compose up --force-recreate -d --wait --quiet-pull
 
-      - name: Check headers
+      - name: Check headers and formatting
         if: matrix.java == 'temurin@11' && matrix.os == 'ubuntu-22.04'
-        run: sbt 'project ${{ matrix.project }}' '++ ${{ matrix.scala }}' headerCheckAll
+        run: sbt 'project ${{ matrix.project }}' '++ ${{ matrix.scala }}' headerCheckAll scalafmtCheckAll 'project /' scalafmtSbtCheck
 
       - name: scalaJSLink
         if: matrix.project == 'rootJS'

.jvmopts

@@ -1,6 +1,6 @@
 -Dsbt.color=always
 -Dsbt.supershell=true
 -Xms2g
--Xmx4g
+-Xmx6g
 -Xss4m
 -XX:+UseG1GC

.scalafmt.conf

@@ -0,0 +1,84 @@
+version = 3.11.1
+
+runner.dialect = scala213source3
+
+maxColumn = 96
+
+includeCurlyBraceInSelectChains = true
+includeNoParensInSelectChains = true
+
+optIn {
+  breakChainOnFirstMethodDot = false
+  forceBlankLineBeforeDocstring = true
+}
+
+binPack {
+  literalArgumentLists = true
+  parentConstructors = Never
+}
+
+danglingParentheses {
+  defnSite = false
+  callSite = false
+  ctrlSite = false
+
+  exclude = []
+}
+
+newlines {
+  topLevelStatementBlankLines = [
+    { regex = "^Pkg", blanks { after = 1 } }
+  ]
+  beforeCurlyLambdaParams = multilineWithCaseOnly
+  afterCurlyLambda = squash
+  implicitParamListModifierPrefer = before
+  sometimesBeforeColonInMethodReturnType = true
+}
+
+align.preset = none
+align.stripMargin = true
+
+assumeStandardLibraryStripMargin = true
+
+docstrings {
+  style = Asterisk
+  oneline = unfold
+}
+
+project.git = true
+
+trailingCommas = never
+
+rewrite {
+  rules = [PreferCurlyFors, RedundantParens, Imports]
+
+  imports {
+    sort = scalastyle
+    selectors = fold
+    contiguousGroups = no
+    groups = [
+      ["javax?\\..*"]
+      ["scala\\..*"]
+      [".*"]
+      ["grackle\\..*"]
+      ["demo\\..*"]
+    ]
+  }
+
+  redundantBraces {
+    maxLines = 1
+    stringInterpolation = true
+  }
+}
+
+rewriteTokens {
+  "⇒": "=>"
+  "→": "->"
+  "←": "<-"
+}
+
+fileOverride {
+  "glob:**/scala-3/**" {
+    runner.dialect = scala3
+  }
+}

benchmarks/src/main/scala/ParserBenchmark.scala

@@ -15,27 +15,29 @@
 
 package grackle.benchmarks
 
-import grackle.Schema
-import org.openjdk.jmh.annotations._
-import org.openjdk.jmh.infra.Blackhole;
-
 import java.util.concurrent.TimeUnit
+
 import scala.io.Source
 
+import org.openjdk.jmh.annotations._
+import org.openjdk.jmh.infra.Blackhole
+
+import grackle.Schema
+
 /**
  * To do comparative benchmarks between versions:
  *
- *     benchmarks/run-benchmark ParserBenchmark
+ * benchmarks/run-benchmark ParserBenchmark
  *
  * This will generate results in `benchmarks/results`.
  *
  * Or to run the benchmark from within sbt:
  *
- *     jmh:run -i 10 -wi 10 -f 2 -t 1 grackle.benchmarks.ParserBenchmark
+ * jmh:run -i 10 -wi 10 -f 2 -t 1 grackle.benchmarks.ParserBenchmark
  *
- * Which means "10 iterations", "10 warm-up iterations", "2 forks", "1 thread".
- * Please note that benchmarks should be usually executed at least in
- * 10 iterations (as a rule of thumb), but more is better.
+ * Which means "10 iterations", "10 warm-up iterations", "2 forks", "1 thread". Please note that
+ * benchmarks should be usually executed at least in 10 iterations (as a rule of thumb), but
+ * more is better.
  */
 @State(Scope.Thread)
 @BenchmarkMode(Array(Mode.Throughput))
@@ -56,4 +58,3 @@ class ParserBenchmark {
   }
 
 }
-