Add ability to set indentation size

Author: Kapil Borle

package.json

@@ -275,6 +275,11 @@
                     "type":"boolean",
                     "default": true,
                     "description": "Places open brace on the same line as its associated statement."
+                },
+                "powershell.codeformatting.indentationSize":{
+                    "type":"number",
+                    "default": 4,
+                    "description": "The indentation size in number of Space characters."
                 }
             }
         }

src/features/DocumentFormatter.ts

@@ -86,7 +86,7 @@ class PSDocumentFormattingEditProvider implements vscode.DocumentFormattingEditP
                     // can be undone and redone in a single step
 
                     // sort in decending order of the edits
-                    result.markers.sort(function(a: ScriptFileMarker, b: ScriptFileMarker): number {
+                    result.markers.sort(function (a: ScriptFileMarker, b: ScriptFileMarker): number {
                         let leftOperand: number = a.correction.edits[0].startLineNumber,
                             rightOperand: number = b.correction.edits[0].startLineNumber;
                         if (leftOperand < rightOperand) {
@@ -136,12 +136,29 @@ class PSDocumentFormattingEditProvider implements vscode.DocumentFormattingEditP
 
     getSettings(rule: string): string {
         let settings: Settings.ISettings = Settings.load(Utils.PowerShellLanguageId);
+        let ruleProperty: string;
+        switch (rule) {
+            case "PSPlaceOpenBrace":
+                ruleProperty = `${rule} = @{
+                    OnSameLine = \$${settings.codeformatting.openBraceOnSameLine}
+                }`;
+                break;
+
+            case "PSUseConsistentIndentation":
+                ruleProperty = `${rule} = @{
+                    IndentationSize = ${settings.codeformatting.indentationSize}
+                }`;
+                break;
+
+            default:
+                ruleProperty = "";
+                break;
+        }
+
         return `@{
     IncludeRules = @('${rule}')
     Rules = @{
-                PSPlaceOpenBrace = @{
-                    OnSameLine = \$${settings.codeformatting.openBraceOnSameLine}
-        }
+                ${ruleProperty}
     }
 }`;
     }

src/settings.ts

@@ -8,6 +8,7 @@ import vscode = require('vscode');
 
 export interface ICodeFormattingSettings {
     openBraceOnSameLine: boolean;
+    indentationSize: number;
 }
 
 export interface IScriptAnalysisSettings {
@@ -46,7 +47,8 @@ export function load(myPluginId: string): ISettings {
     };
 
     let defaultCodeFormattingSettings: ICodeFormattingSettings = {
-        openBraceOnSameLine: true
+        openBraceOnSameLine: true,
+        indentationSize: 4
     };
 
     return {