Create remove command for templates

Sources/xcman/XCManTemplatesTool.swift

@@ -36,4 +36,12 @@ let templatesCommand = Group {
         // Print each templates set one by one
         templates.forEach { print($0) }
     }
+
+    $0.command("remove",
+        VariadicArgument<String>("name", description: "Name of the templates set to be deleted"),
+        description: "Removes installed templates from Xcode"
+    ) { names in
+        // Remove all sets listed by user
+        try names.forEach { try templatesManager.delete(templatesSet: $0) }
+    }
 }

Sources/xcmanlib/TemplatesManager.swift

@@ -52,4 +52,21 @@ public final class TemplatesManager {
             // Map to folders name
             .map { $0.lastPathComponent }
     }
+
+    public func delete(templatesSet: String) throws {
+        // URL of templates set being deleted
+        let url = FileManager.default.homeDirectoryUrl.appendingPathComponent(UserDataType.templates.xcodePath(for: templatesSet), isDirectory: true)
+
+        // Throw an error if directory does not exists
+        if !FileManager.default.fileExists(atPath: url.path) {
+            throw UserDataError.couldNotReadRepositoryContent(url)
+        }
+
+        // Remove the directory
+        do {
+            try FileManager.default.removeItem(at: url)
+        } catch {
+            throw UserDataError.couldNotRemoveExistingUserData(url, error)
+        }
+    }
 }