RunCommand: escape command and arguments where applicable (henon#59)

Author: henon

Python.Deployment/Installer.cs

@@ -244,7 +244,7 @@ public static async Task PipInstallWheel(Assembly assembly, string resource_name
 
             await TryInstallPip();
 
-            RunCommand($"{pipPath} install {wheelPath}");
+            RunCommand($"\"{pipPath}\" install \"{wheelPath}\"");
         }
 
         private static void CopyEmbeddedResourceToFile(Assembly assembly, string resourceName, string filePath, bool force = false)
@@ -301,7 +301,7 @@ public static async Task PipInstallModule(string module_name, string version = "
             if (version.Length > 0)
                 version = $"=={version}";
 
-            RunCommand($"{pipPath} install {module_name}{version} {forceInstall}");
+            RunCommand($"\"{pipPath}\" install \"{module_name}{version}\" {forceInstall}");
         }
 
         /// <summary>
@@ -338,7 +338,7 @@ public static async Task InstallPip()
             }
 
 
-            RunCommand($"cd {EmbeddedPythonHome} && python.exe Lib\\get-pip.py");
+            RunCommand($"cd \"{EmbeddedPythonHome}\" && python.exe Lib\\get-pip.py");
         }
 
         public static async Task<bool> TryInstallPip(bool force = false)