extern creation failure: react-dates

[ddellacosta]

Using a file generated via running boot package install target via the cljsjs package (https://github.com/cljsjs/packages/pull/1062), I got:

$ generate-extern -f target/cljsjs/react-dates/development/react-dates.inc.js -n ReactDates -o react-dates.ext.js

/usr/local/lib/node_modules/externs-generator/bin/extern:261
ma(sd,"exit").call(null,1));null==c&&(console.error("Please specify namespace to extern (e.g. -n jQuery)"),ma(sd,"exit").call(null,1));null==a&&(console.error("Please specify an output file for the extern (e.g. -o jquery-extern.js)"),ma(sd,"exit").call(null,1));for(var b=K(b),e=null,g=0,h=0;;)if(h<g){var k=e.W(null,h);Mf(d,k);h+=1}else if(b=K(b))e=b,Cc(e)?(b=tb(e),h=ub(e),e=b,g=S(b),b=h):(b=M(e),Mf(d,b),b=O(e),e=null,g=0),h=0;else break;d=ma(d,c);if(null==d)throw[B("Namespace '"),B(c),B("' was not found. Make sure the library is loaded and the name is spelled correctly.")].join("");

Namespace 'ReactDates' was not found. Make sure the library is loaded and the name is spelled correctly.
$

Am I doing something obviously wrong? I wasn't sure if this was the right file to attempt to generate externs from, but it wasn't obvious what to use otherwise. Any help or suggestions would be most appreciated!

Original codebase I'm working from in case it's helpful: https://github.com/airbnb/react-dates

[jmmk]

@ddellacosta I was able to generate the extern using the following steps:

Web App

• go to http://jmmk.github.io/javascript-externs-generator/
• load https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react-with-addons.js (peer dependency)
• load https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react-dom.js (peer dependency)
• load https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.14.0/moment.js (peer dependency)
• load https://cdn.rawgit.com/ddellacosta/fe3bfd51fe4440d88c98aa211fb3b942/raw/cce4795bfa9f3864e90abafc7702fd3f1eca200a/whatever.js (this is the file you linked above)
• generate extern for ReactDates

Command-Line Tool

• mkdir test && cd test
• curl -LO https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react-with-addons.js (peer dependency)
• curl -LO https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react-dom.js (peer dependency)
• curl -LO https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.14.0/moment.js (peer dependency)
• curl -LO https://cdn.rawgit.com/ddellacosta/fe3bfd51fe4440d88c98aa211fb3b942/raw/cce4795bfa9f3864e90abafc7702fd3f1eca200a/whatever.js (this is the file you linked above)
• generate-extern -f react-with-addons.js,react-dom.js,moment.js,whatever.js -n ReactDates -o react-dates.ext.js

[ddellacosta]

@jmmk Thank you so much!! That was a great help both in getting this file generated and in improving my understanding of how the extern generator works. I really appreciate it.