WIP: Enable doctests

Author: Avaq

.config

@@ -3,3 +3,4 @@ repo-owner = fluture-js
 repo-name = fluture-node
 source-files = index.mjs
 opening-delimiter = ```js
+module-type = esm

.eslintrc.json

@@ -4,6 +4,9 @@
   "overrides": [
     {
       "files": ["README.md"],
+      "parserOptions": {
+        "sourceType": "module"
+      },
       "globals": {
         "EventEmitter": "readonly",
         "Future": "readonly",

index.mjs

@@ -15,6 +15,7 @@ import Future from 'fluture';
 //. itself from the event emitter.
 //.
 //. ```js
+//. > import {EventEmitter} from 'events';
 //. > const emitter = new EventEmitter ();
 //. > setTimeout (() => emitter.emit ('answer', 42), 100);
 //. > once ('answer') (emitter);
@@ -46,6 +47,7 @@ export const once = event => emitter => Future ((rej, res) => {
 //. itself from the Stream.
 //.
 //. ```js
+//. > import {Readable} from 'stream';
 //. > const stream = new Readable ({read: () => {}});
 //. > setTimeout (() => {
 //. .   stream.push ('hello');

package.json

@@ -32,6 +32,7 @@
   "devDependencies": {
     "c8": "^3.4.0",
     "codecov": "^3.2.0",
+    "doctest": "github:Avaq/doctest#avaq/esm",
     "fluture": "^11.0.1",
     "oletus": "^1.1.5",
     "rollup": "^1.1.2",

scripts/doctest

@@ -1,2 +1,21 @@
 #!/usr/bin/env bash
-echo 'Doctests cannot run on mjs files. Skipping :('
+set -eufo pipefail
+
+# shellcheck source=functions
+source "${BASH_SOURCE%/*}/../node_modules/sanctuary-scripts/functions"
+
+set +f ; shopt -s nullglob
+files=($(get source-files))
+set -f ; shopt -u nullglob
+
+module="$(get module-type)"
+prefix="$(get comment-prefix)"
+opening="$(get opening-delimiter)"
+closing="$(get closing-delimiter)"
+
+node_modules/.bin/doctest \
+  --module "$module" \
+  --prefix "$prefix" \
+  --opening-delimiter "$opening" \
+  --closing-delimiter "$closing" \
+  -- "${files[@]}"