Add types for image-type (#29740)

types/image-type/image-type-tests.ts

@@ -0,0 +1,4 @@
+import imageType = require('file-type');
+
+imageType(new Buffer([0xFF, 0xD8, 0xFF]));
+imageType(new Uint8Array([0xFF, 0xD8, 0xFF]));

types/image-type/index.d.ts

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+// Type definitions for image-type 3.0
+// Project: https://github.com/sindresorhus/image-type#readme
+// Definitions by: Florian Keller <https://github.com/ffflorian>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node" />
+
+import FileType = require('file-type');
+
+declare function ImageType(buf: Buffer | Uint8Array): FileType.FileTypeResult | null;
+
+export = ImageType;

types/image-type/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "image-type-tests.ts"
+    ]
+}

types/image-type/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }