From 917e7b18b28b85a1db7eb3e529e406793499759d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Di=20Gr=C3=A9gorio?= <dig@p2p.legal>
Date: Wed, 10 Apr 2019 23:50:07 +0200
Subject: [PATCH] Add awesome esm dependency and a simple launcher used as
 global npm install

---
 bin/esm-cli.js | 40 ++++++++++++++++++++++++++++++++++++++++
 package.json   | 19 +++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100755 bin/esm-cli.js
 create mode 100644 package.json

diff --git a/bin/esm-cli.js b/bin/esm-cli.js
new file mode 100755
index 0000000..5766cca
--- /dev/null
+++ b/bin/esm-cli.js
@@ -0,0 +1,40 @@
+#!/usr/bin/env node
+
+const { resolve } = require('path')
+let params = process.argv.slice(2)
+
+const moduleStr = params.shift()
+const [ esmodule, exported ] = (moduleStr || '').split(':')
+
+const optionReg = /^-{1,2}(.*?)([:=](.*?))?$/
+const args = params.filter( s=> optionReg.test(s) )
+                                .reduce( (opt,str)=> {
+                                        let [ , prop, , value ] = optionReg.exec(str)
+                                        return Object.assign( opt, {[prop]: value || true} )
+                                        // return hasValue ? { ...opt, [prop]: value || true }
+                                                                        // : opt
+                                },
+                                params.filter( s=> !optionReg.test(s) )
+                        )
+
+const package = resolve('./package.json')
+,	modulo = resolve(esmodule)
+
+//console.log( process.cwd(), package, modulo )
+//console.log( process.argv, esmodule, exported, args )
+
+let mod =
+require('esm')( module, {await: true} )
+( modulo || require(package).module )
+
+let toCall = mod[ exported || 'default' ]
+let returned =
+        typeof toCall == 'function'
+                ? toCall( args )
+                : toCall
+//console.log( 'type' , typeof returned, returned instanceof Promise )
+returned instanceof Promise
+        ? returned.then( ret=> console.log(ret||''), e=>console.error(e) )
+        : console.log( returned || '' )
+
+module.exports = mod
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..8d0b30b
--- /dev/null
+++ b/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "esm-cli",
+  "version": "1.0.0",
+  "description": "EcmaScript Module launcher",
+  "main": "esm.js",
+  "bin": {
+      "esm": "./bin/esm-cli.js"
+  },
+  "preferGlobal": true,
+  "dependencies": {
+    "esm": "^3.2.18"
+  },
+  "devDependencies": {},
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "MIT"
+}