feat: added a JSON handler/fixer (#165)

* feat: added a JSON handler/fixer [wip]

Added a module that will check JSON files and give a good level of details for errors while
attempting to fix it

re https://github.com/all-contributors/all-contributors-bot/issues/102

* refactor: consolidated the fix handler

Made the fixer a bit more concise and added the fields to allow for an auto-update of the config
file (if it was changed)

* chore(package): use another `jsonlint`

* refactor(config-file): use `json-fixer`

* chore(package): bump `json-fixer` to 1.3

* chore(package): bumped `json-fixer`

.gitignore

@@ -10,3 +10,5 @@ dist
 # when working with contributors
 package-lock.json
 yarn.lock
+.vscode
+cache

package.json

@@ -47,6 +47,7 @@
     "chalk": "^2.3.0",
     "didyoumean": "^1.2.1",
     "inquirer": "^6.2.1",
+    "json-fixer": "^1.3.1-0",
     "lodash": "^4.11.2",
     "pify": "^4.0.1",
     "request": "^2.72.0",

src/util/config-file.js

@@ -1,16 +1,21 @@
 const fs = require('fs')
 const pify = require('pify')
 const _ = require('lodash/fp')
+const jf = require('json-fixer')
 
 function readConfig(configPath) {
   try {
-    const config = JSON.parse(fs.readFileSync(configPath, 'utf-8'))
+    const {data: config, changed} = jf(fs.readFileSync(configPath, 'utf-8'))
     if (!('repoType' in config)) {
       config.repoType = 'github'
     }
     if (!('commitConvention' in config)) {
       config.commitConvention = 'none'
     }
+    if (changed) {
+      //Updates the file with fixes
+      fs.writeFileSync(configPath, JSON.stringify(config, null, 2))
+    }
     return config
   } catch (error) {
     if (error instanceof SyntaxError) {