Add definitions and tests for gulp-inject

gulp-inject/gulp-inject-tests.ts

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+/// <reference path="./gulp-inject.d.ts" />
+/// <reference path="../gulp/gulp.d.ts" />
+
+import gulp = require("gulp");
+import inject = require("gulp-inject");
+
+gulp.task("inject:simple", () => {
+    gulp.src("src/index.html")
+        .pipe(inject(gulp.src(["src/**/*.js", "src/**/*.css"], { read: false })))
+        .pipe(gulp.dest("build"));
+});
+
+gulp.task("inject:relative", () => {
+    gulp.src(["src/index.html"])
+        .pipe(inject(gulp.src(["src/**/*.js", "src/**/*.css"], { read: false }), { relative: true }))
+        .pipe(gulp.dest("build"));
+});
+
+gulp.task("inject:starttag", () => {
+    gulp.src(["src/index.html"])
+        .pipe(inject(gulp.src(["src/**/*.js", "src/**/*.css"], { read: false }), { starttag: "<!-- inject:head:{{ext}} -->" }))
+        .pipe(gulp.dest("build"));
+});
+
+gulp.task("inject:name", () => {
+    gulp.src(["src/index.html"])
+        .pipe(inject(gulp.src(["src/**/*.js", "src/**/*.css"], { read: false }), { name: "head" }))
+        .pipe(gulp.dest("build"));
+});
+
+gulp.task("inject:transform", () => {
+    gulp.src(["files.json"])
+        .pipe(inject(gulp.src(["src/**/*.js", "src/**/*.css", "src/**/*.html"], { read: false }), {
+            starttag: "\"{{ext}}\": [",
+            endtag: "]",
+            transform: (filepath, file, i, length) => {
+                return "  \"" + filepath + "\"" + (i + 1 < length ? "," : "");
+            }
+        }))
+        .pipe(gulp.dest("build"));
+});

gulp-inject/gulp-inject.d.ts

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+// Type definitions for gulp-inject
+// Project: https://github.com/klei/gulp-inject
+// Definitions by: Keita Kagurazaka <https://github.com/k-kagurazaka>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+/// <reference path="../vinyl/vinyl.d.ts" />
+
+declare module "gulp-inject" {
+
+    import File = require("vinyl");
+
+    interface ITagFunction {
+        (targetExt: string, sourceExt: string): string;
+    }
+
+    interface ITransformFunction {
+        (filepath: string, file?: File, index?: number, length?: number, targetFile?: File): string;
+    }
+
+    interface IOptions {
+        ignorePath?: string | string[];
+        relative?: boolean;
+        addPrefix?: string;
+        addRootSlash?: boolean;
+        name?: string;
+        starttag?: string | ITagFunction;
+        endtag?: string | ITagFunction;
+        transform?: ITransformFunction;
+        selfClosingTag?: boolean;
+    }
+
+    function inject(sources: NodeJS.ReadableStream, options?: IOptions): NodeJS.ReadWriteStream;
+
+    export = inject;
+}