Added deep env vars

README.md

@@ -8,7 +8,8 @@ Simple Config Log with HashiCorp Vault support.
 
 ## Installation
 
-- `npm config set @br:registry https://it-devops-01:4873`
+- `npm config set @br:registry https://npm.br-edv.brnet.int`
+- `npm config set strict-ssl false`
 - `npm install --save @br/config`
 
 ## Usage
@@ -25,6 +26,9 @@ It reads from the following sources, performing a deep merge:
 - config.json
 - config.defaults.json
 
+Enviroment Variables can target deep nested settings:  
+The Setting _setting.deep.key_ can be reached with *SETTING_DEEP_KEY*
+
 ## Examples
 
 ### Only config.defaults.json
@@ -45,7 +49,7 @@ It reads from the following sources, performing a deep merge:
 
 (Enviroment set by command to not pollute your machine)
 
-`setting=overwritten-by-env node examples/env/index.js`
+`SETTING=overwritten-by-env node examples/env/index.js`
 
 ## TODO / Missing
 

index.js

@@ -8,17 +8,20 @@ module.exports = function() {
   
   let config = {}
   
-  const iterate = function (obj) {
-    for (let index = 0; index < Object.keys(obj).length; index++) {
-      const element = Object.keys(obj)[index]
-      if (process.env[element]) {
-        obj[element] = process.env[element]
-      }
-      // TODO: encode values here
-      if (typeof obj[element] === 'object') {
-        iterate(element)
+  const objectDeepKeys = function (obj) {
+    return Object.keys(obj).filter(key => obj[key] instanceof Object).map(key => objectDeepKeys(obj[key]).map(k => `${key}.${k}`)).reduce((x, y) => x.concat(y), Object.keys(obj))
   }
+  
+  const set = function(obj, path, value) {
+    var schema = obj  // a moving reference to internal objects within obj
+    var pList = path.split('.')
+    var len = pList.length
+    for(var i = 0; i < len-1; i++) {
+        var elem = pList[i]
+        if( !schema[elem] ) schema[elem] = {}
+        schema = schema[elem]
     }
+    schema[pList[len-1]] = value
 }
 
   try {
@@ -35,7 +38,14 @@ module.exports = function() {
     console.log('No File ' + configLocal)
   }
   
-  iterate(config)
+  let keys = objectDeepKeys(config)
+  for (let index = 0; index < keys.length; index++) {
+    const element = keys[index]
+    const env = process.env[element.toUpperCase().replace('.', '_')]
+    if (env) {
+      set(config, element, env)
+    }
+  }
 
   return config
 }
\ No newline at end of file

index.test.js

@@ -58,7 +58,8 @@ describe('config', function() {
     await fs.writeFile('config.defaults.json', JSON.stringify(jsonDefaults))
     await fs.writeFile('config.json', JSON.stringify(jsonLocals))
     
-    process.env.setting = 'overwritten-by-env'
+    process.env['SETTING'] = 'overwritten-by-env'
+    process.env['ANOTHER_MORE'] = 'overwritten-by-env2'
     
     let config = new Config()
 
@@ -66,7 +67,7 @@ describe('config', function() {
     await fs.unlink('config.defaults.json')
 
     expect(config.setting).toBe('overwritten-by-env')
-    expect(config.another.more).toBe('stuff')
+    expect(config.another.more).toBe('overwritten-by-env2')
     expect(config.another.setting).toBe('avalue')
   })
 })

package-lock.json

 {
   "name": "config",
-  "version": "1.2.0",
+  "version": "1.2.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

package.json

 {
   "name": "@br/config",
-  "version": "1.2.0",
+  "version": "1.2.3",
   "description": "Simple Config Log with HashiCorp Vault support",
   "main": "index.js",
   "scripts": {