flow like the river

VISUALIZACION/node_modules/dotenv/lib/main.js

@@ -0,0 +1,79 @@
+'use strict'
+
+const fs = require('fs')
+const path = require('path')
+
+/*
+ * Parses a string or buffer into an object
+ * @param {(string|Buffer)} src - source to be parsed
+ * @returns {Object} keys and values from src
+*/
+function parse (src) {
+  const obj = {}
+
+  // convert Buffers before splitting into lines and processing
+  src.toString().split('\n').forEach(function (line) {
+    // matching "KEY' and 'VAL' in 'KEY=VAL'
+    const keyValueArr = line.match(/^\s*([\w\.\-]+)\s*=\s*(.*)?\s*$/)
+    // matched?
+    if (keyValueArr != null) {
+      const key = keyValueArr[1]
+
+      // default undefined or missing values to empty string
+      let value = keyValueArr[2] || ''
+
+      // expand newlines in quoted values
+      const len = value ? value.length : 0
+      if (len > 0 && value.charAt(0) === '"' && value.charAt(len - 1) === '"') {
+        value = value.replace(/\\n/gm, '\n')
+      }
+
+      // remove any surrounding quotes and extra spaces
+      value = value.replace(/(^['"]|['"]$)/g, '').trim()
+
+      obj[key] = value
+    }
+  })
+
+  return obj
+}
+
+/*
+ * Main entry point into dotenv. Allows configuration before loading .env
+ * @param {Object} options - options for parsing .env file
+ * @param {string} [options.path=.env] - path to .env file
+ * @param {string} [options.encoding=utf8] - encoding of .env file
+ * @returns {Object} parsed object or error
+*/
+function config (options) {
+  let dotenvPath = path.resolve(process.cwd(), '.env')
+  let encoding = 'utf8'
+
+  if (options) {
+    if (options.path) {
+      dotenvPath = options.path
+    }
+    if (options.encoding) {
+      encoding = options.encoding
+    }
+  }
+
+  try {
+    // specifying an encoding returns a string instead of a buffer
+    const parsed = parse(fs.readFileSync(dotenvPath, { encoding }))
+
+    Object.keys(parsed).forEach(function (key) {
+      if (!process.env.hasOwnProperty(key)) {
+        process.env[key] = parsed[key]
+      }
+    })
+
+    return { parsed }
+  } catch (e) {
+    return { error: e }
+  }
+}
+
+module.exports.config = config
+module.exports.load = config
+module.exports.parse = parse