Merge pull request #1 from Daniihh/better-imports

Apply Multi-file Output, Tests & Cleanup

Author: danii

.gitignore

@@ -1 +1,2 @@
-node_modules
+node_modules
+out/

gulpfile.js

@@ -1,10 +1,26 @@
-const [{src, dest}, ts] = ["!gulp", "typescript"]
-  .map(i => i.startsWith("!") ? i.substr(1) : `gulp-${i}`).map(require);
+const [{src, dest}, fs, ts, rename, compress, merge] =
+  ["!gulp", "!fs", "typescript", "rename", "minify", "!merge-stream"]
+    .map(i => i.startsWith("!") ? i.substr(1) : `gulp-${i}`).map(require);
+
+const requiredFolders = ["out"];
+
+function ensureFolders() {
+  requiredFolders.forEach(dir => fs.existsSync(dir) ? null : fs.mkdirSync(dir));
+}
 
 module.exports = {
   compile() {
-    const project =
-      ts.createProject("tsconfig.json", {"experimentalDecorators": true});
-    return src("./src/*.ts").pipe(project()).pipe(dest("./out/"));
+    ensureFolders();
+
+    const modSys = {"esmodule": "ESNext", "commonjs": "CommonJS"};
+    const get = (mod) => ts.createProject("tsconfig.json", {"module": modSys[mod]});
+    const applyTs = (pipe, mod) => pipe.pipe(get(mod)()).pipe(rename(p => p.basename = mod + "-" + p.basename));
+    const applyCompress = (pipe, opts) => pipe.pipe(compress(opts));
+
+    let out = [src("./src/*.ts")];
+    out = out.map(i => [applyTs(i, "esmodule"), applyTs(i, "commonjs")]).flat();
+    out = out.map(i => [i, applyCompress(i, {"ext": {"min": "-min.js"}, "preserveComments": "some"})]).flat();
+    return merge(...out).pipe(dest("./out/"));
+    //return src("./src/*.ts").pipe(project()).pipe(dest("./out/"));
   }
 }