Add option to ignore formatting of one line constructs

package.json

@@ -366,6 +366,11 @@
           "type": "boolean",
           "default": true,
           "description": "There must be a whitespaces after a separator (',' and ';')."
+        },
+        "powershell.codeFormatting.ignoreOneLineBlock": {
+          "type": "boolean",
+          "default": true,
+          "description": "Ignore blocks of code on one line. For example, if true, the braces in \"if (...) {...} else {...}\", will not be formatted."
         }
       }
     }

src/features/DocumentFormatter.ts

@@ -328,6 +328,11 @@ class PSDocumentFormattingEditProvider implements DocumentFormattingEditProvider
             case "PSPlaceOpenBrace":
                 ruleSettings["OnSameLine"] = psSettings.codeFormatting.openBraceOnSameLine;
                 ruleSettings["NewLineAfter"] = psSettings.codeFormatting.newLineAfterOpenBrace;
+                ruleSettings["IgnoreOneLineBlock"] = psSettings.codeFormatting.ignoreOneLineBlock;
+                break;
+
+            case "PSPlaceCloseBrace":
+                ruleSettings["IgnoreOneLineBlock"] = psSettings.codeFormatting.ignoreOneLineBlock;
                 break;
 
             case "PSUseConsistentIndentation":

src/settings.ts

@@ -13,6 +13,7 @@ export interface ICodeFormattingSettings {
     whitespaceBeforeOpenParen: boolean;
     whitespaceAroundOperator: boolean;
     whitespaceAfterSeparator: boolean;
+    ignoreOneLineBlock: boolean;
 }
 
 export interface IScriptAnalysisSettings {
@@ -58,7 +59,8 @@ export function load(myPluginId: string): ISettings {
         whitespaceBeforeOpenBrace: true,
         whitespaceBeforeOpenParen: true,
         whitespaceAroundOperator: true,
-        whitespaceAfterSeparator: true
+        whitespaceAfterSeparator: true,
+        ignoreOneLineBlock: true
     };
 
     return {