Export some unchanged members in the firestore/exp SDK (#3256)

Author: schmidt-sebastian

packages/firestore/exp/index.node.ts

@@ -15,4 +15,21 @@
  * limitations under the License.
  */
 
-// TODO(firestorexp): Export API
+export { FieldPath, documentId } from '../lite/src/api/field_path';
+
+export {
+  FieldValue,
+  deleteField,
+  increment,
+  arrayRemove,
+  arrayUnion,
+  serverTimestamp
+} from '../lite/src/api/field_value';
+
+export { setLogLevel } from '../src/util/log';
+
+export { Blob } from '../src/api/blob';
+
+export { GeoPoint } from '../src/api/geo_point';
+
+export { Timestamp } from '../src/api/timestamp';

packages/firestore/exp/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "@firebase/firestore/exp",
+  "description": "A tree-shakeable version of the Firestore SDK",
+  "main": "../dist/exp/index.node.esm2017.js",
+  "private": true
+}

packages/firestore/exp/src/api/foobar.ts

@@ -9,7 +9,7 @@
   "scripts": {
     "prebuild": "tsc -m es2015 --moduleResolution node scripts/*.ts ",
     "prebuild:release": "yarn prebuild",
-    "build": "rollup -c rollup.config.es2017.js && rollup -c rollup.config.es5.js && yarn build:lite",
+    "build": "rollup -c rollup.config.es2017.js && rollup -c rollup.config.es5.js && yarn build:lite && yarn build:exp",
     "build:release": "rollup -c rollup.config.es2017.js && rollup -c rollup.config.es5.js",
     "build:deps": "lerna run --scope @firebase/'{app,firestore}' --include-dependencies build",
     "build:console": "node tools/console.build.js",
@@ -46,7 +46,6 @@
   "browser": "dist/index.cjs.js",
   "module": "dist/index.esm.js",
   "esm2017": "dist/index.esm2017.js",
-  "exp": "dist/exp/index.js",
   "license": "Apache-2.0",
   "files": [
     "dist",

packages/firestore/package.json

@@ -17,10 +17,11 @@
 
 import typescriptPlugin from 'rollup-plugin-typescript2';
 import typescript from 'typescript';
+import path from 'path';
 
 import { resolveNodeExterns } from './rollup.shared';
 
-import pkg from './package.json';
+import pkg from './exp/package.json';
 
 const defaultPlugins = [
   typescriptPlugin({
@@ -38,7 +39,7 @@ const nodeBuilds = [
   {
     input: './exp/index.node.ts',
     output: {
-      file: pkg.exp,
+      file: path.resolve('./exp', pkg.main),
       format: 'es'
     },
     plugins: defaultPlugins,