Revert "Remove Cake.FileHelpers"

This reverts commit f472fdf.

Author: jonathanpeppers

build.cake

@@ -2,6 +2,7 @@
 #tool nuget:?package=Microsoft.Android.Sdk.Windows&version=35.0.61
 
 // Cake Addins
+#addin nuget:?package=Cake.FileHelpers&version=7.0.0
 #addin nuget:?package=Newtonsoft.Json&version=13.0.3
 #addin nuget:?package=SharpZipLib&version=1.4.2
 

build/cake/setup-environment.cake

@@ -7,13 +7,7 @@ Task ("inject-variables")
 {
     var glob = "./source/AssemblyInfo.cs";
 
-    ReplaceTextInFile (glob, "{BUILD_COMMIT}", BUILD_COMMIT);
-    ReplaceTextInFile (glob, "{BUILD_NUMBER}", BUILD_NUMBER);
-    ReplaceTextInFile (glob, "{BUILD_TIMESTAMP}", BUILD_TIMESTAMP);
+    ReplaceTextInFiles (glob, "{BUILD_COMMIT}", BUILD_COMMIT);
+    ReplaceTextInFiles (glob, "{BUILD_NUMBER}", BUILD_NUMBER);
+    ReplaceTextInFiles (glob, "{BUILD_TIMESTAMP}", BUILD_TIMESTAMP);
 });
-
-void ReplaceTextInFile (string filePath, string oldValue, string newValue)
-{
-    var text = System.IO.File.ReadAllText (filePath);
-    System.IO.File.WriteAllText (filePath, text.Replace (oldValue, newValue));
-}

utilities.cake

@@ -8,6 +8,7 @@ debugging prerequisity
  */
 #addin nuget:?package=WeCantSpell.Hunspell&version=6.0.0
 #addin nuget:?package=Newtonsoft.Json&version=13.0.3
+#addin nuget:?package=Cake.FileHelpers&version=7.0.0
 
 #addin nuget:?package=Mono.Cecil&version=0.11.6
 #addin nuget:?package=HolisticWare.Xamarin.Tools.ComponentGovernance&version=0.0.1.4