Refactor defaults (#111) - fixes #108

* moved default values from function code into JSON Schema for #108

* adding coercer for default values/secrets #108
- split validator creation into separate module

* update docs

* unit test for param coercion #108

* fix test for #108
- don't check all secrets, only the one non-default

* set defaults before running image handler test #108

* Fix test by coercing defaults beforehand #108

* fix embed test by coercing defaults #108

* Coerce defaults to fix find embed test #108

* Fix test fetch markdown by coercing defaults

* reducing number of empty lines to a @tripodsan -approved amount

* removing unused condition

* adding REPO_API_ROOT

package.json

@@ -50,6 +50,7 @@
     "mdast-util-to-string": "^1.0.4",
     "mdurl": "^1.0.1",
     "micromatch": "^3.1.10",
+    "object-hash": "^1.3.1",
     "rehype-parse": "^6.0.0",
     "remark-frontmatter": "^1.3.0",
     "remark-parse": "^6.0.0",

src/html/fetch-markdown.js

@@ -13,8 +13,6 @@ const client = require('request-promise-native');
 const URI = require('uri-js');
 const { bail } = require('../helper');
 
-const GH_RAW = 'https://raw.githubusercontent.com/';
-
 function uri(root, owner, repo, ref, path) {
   const rootURI = URI.parse(root);
   const rootPath = rootURI.path;
@@ -73,7 +71,7 @@ async function fetch(
     return bail(logger, 'Unknown path, cannot fetch content');
   }
 
-  const { REPO_RAW_ROOT: rootPath = GH_RAW } = secrets;
+  const { REPO_RAW_ROOT: rootPath } = secrets;
 
   // everything looks good, make the HTTP request
   const options = {