Update gitignore (sorry)

electron/node_modules/sumchecker/index.d.ts

@@ -0,0 +1,51 @@
+/*
+Copyright 2019 Mark Lee and contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+declare function sumchecker(algorithm: string, checksumFilename: string, baseDir: string, filesToCheck: string[] | string): Promise<void>;
+
+declare namespace sumchecker {
+  type ChecksumOptions = {
+    defaultTextEncoding?: string;
+  };
+
+  class ErrorWithFilename extends Error {
+    constructor(filename: string);
+  }
+
+  class ChecksumMismatchError extends ErrorWithFilename {
+    constructor(filename: string);
+  }
+
+  class ChecksumParseError extends Error {
+    constructor(lineNumber: number, line: string);
+  }
+
+  class NoChecksumFoundError extends ErrorWithFilename {
+    constructor(filename: string);
+  }
+
+  class ChecksumValidator {
+    constructor(algorithm: string, checksumFilename: string, options?: ChecksumOptions);
+    encoding(binary: boolean): string;
+    parseChecksumFile(data: string): void;
+    readFile(filename: string, binary: boolean): Promise<string>;
+    validate(baseDir: string, filesToCheck: string[] | string): Promise<void>;
+    validateFile(baseDir: string, filename: string): Promise<void>;
+    validateFiles(baseDir: string, filesToCheck: string[]): Promise<void>;
+  }
+}
+
+export = sumchecker