Add scalafmt plugin to scala-pekko client generator (#23362)

Author: YB0y

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ScalaPekkoClientCodegen.java

@@ -179,6 +179,8 @@ public void processOpts() {
         supportingFiles.add(new SupportingFile("apiSettings.mustache", invokerFolder, "ApiSettings.scala"));
         final String apiFolder = (sourceFolder + File.separator + apiPackage).replace(".", File.separator);
         supportingFiles.add(new SupportingFile("project/build.properties.mustache", "project", "build.properties"));
+        supportingFiles.add(new SupportingFile("project/plugins.mustache", "project", "plugins.sbt"));
+        supportingFiles.add(new SupportingFile("scalafmt.mustache", "", ".scalafmt.conf"));
         supportingFiles.add(new SupportingFile("enumsSerializers.mustache", apiFolder, "EnumsSerializers.scala"));
         supportingFiles.add(new SupportingFile("serializers.mustache", invokerFolder, "Serializers.scala"));
     }

modules/openapi-generator/src/main/resources/scala-pekko-client/project/plugins.mustache

@@ -0,0 +1 @@
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.6")

modules/openapi-generator/src/main/resources/scala-pekko-client/scalafmt.mustache

@@ -0,0 +1,58 @@
+version=3.10.6
+runner.dialect = scala213
+project {
+  git = false
+  excludeFilters = [
+    scalafmt-benchmarks/src/resources,
+    sbt-test
+    bin/issue
+  ]
+  layout = StandardConvention
+}
+align {
+  preset = none
+  stripMargin = true
+}
+binPack {
+  importSelectors = fold
+}
+newlines {
+  avoidForSimpleOverflow = all
+  ignoreInSyntax = false
+  source = fold
+}
+rewrite {
+  rules = [
+    AvoidInfix,
+    Imports,
+    RedundantBraces,
+    RedundantParens,
+    SortModifiers,
+  ]
+  imports {
+    selectors = fold
+    removeRedundantSelectors = true
+    sort = ascii
+    groups = [
+      ["org\\.scalafmt\\..*"],
+      ["scala\\.meta\\..*", "org\\.scalameta\\..*"],
+      ["sbt\\..*"],
+      ["java.?\\..*"],
+      ["scala\\..*"],
+      ["org\\..*"],
+      ["com\\..*"],
+    ]
+  }
+  redundantBraces {
+    preset = all
+    oneStatApply {
+      parensMaxSpan = 300
+      bracesMinSpan = 300
+    }
+  }
+  redundantParens {
+    preset = all
+  }
+  sortModifiers.preset = styleGuide
+  trailingCommas.style = "always"
+}

samples/client/petstore/scala-pekko/.openapi-generator/FILES

@@ -1,3 +1,4 @@
+.scalafmt.conf
 README.md
 build.sbt
 docs/ApiResponse.md
@@ -11,6 +12,7 @@ docs/User.md
 docs/UserApi.md
 pom.xml
 project/build.properties
+project/plugins.sbt
 src/main/resources/reference.conf
 src/main/scala/org/openapitools/client/api/EnumsSerializers.scala
 src/main/scala/org/openapitools/client/api/PetApi.scala

samples/client/petstore/scala-pekko/.scalafmt.conf

@@ -0,0 +1,58 @@
+version=3.10.6
+runner.dialect = scala213
+project {
+  git = false
+  excludeFilters = [
+    scalafmt-benchmarks/src/resources,
+    sbt-test
+    bin/issue
+  ]
+  layout = StandardConvention
+}
+align {
+  preset = none
+  stripMargin = true
+}
+binPack {
+  importSelectors = fold
+}
+newlines {
+  avoidForSimpleOverflow = all
+  ignoreInSyntax = false
+  source = fold
+}
+rewrite {
+  rules = [
+    AvoidInfix,
+    Imports,
+    RedundantBraces,
+    RedundantParens,
+    SortModifiers,
+  ]
+  imports {
+    selectors = fold
+    removeRedundantSelectors = true
+    sort = ascii
+    groups = [
+      ["org\\.scalafmt\\..*"],
+      ["scala\\.meta\\..*", "org\\.scalameta\\..*"],
+      ["sbt\\..*"],
+      ["java.?\\..*"],
+      ["scala\\..*"],
+      ["org\\..*"],
+      ["com\\..*"],
+    ]
+  }
+  redundantBraces {
+    preset = all
+    oneStatApply {
+      parensMaxSpan = 300
+      bracesMinSpan = 300
+    }
+  }
+  redundantParens {
+    preset = all
+  }
+  sortModifiers.preset = styleGuide
+  trailingCommas.style = "always"
+}

samples/client/petstore/scala-pekko/project/plugins.sbt

@@ -0,0 +1 @@
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.6")