Allow optional export keyword

README.md

@@ -135,6 +135,10 @@ line'}
 ```
 - inner quotes are maintained (think JSON) (`JSON={"foo": "bar"}` becomes `{JSON:"{\"foo\": \"bar\"}"`)
 - whitespace is removed from both ends of the value (see more on [`trim`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)) (`FOO="  some value  "` becomes `{FOO: 'some value'}`)
+- optional `export` keyword is ignored (`export FOO=bar` becomes `{FOO: "bar"}`)
+
+    > **Note:** Using `export` in your files allows you to easily export all of your variables into the current bash/terminal session by running `source .env`.
+
 
 ## FAQ
 

lib/main.js

@@ -13,7 +13,7 @@ function parse (src) {
   // convert Buffers before splitting into lines and processing
   src.toString().split('\n').forEach(function (line) {
     // matching "KEY' and 'VAL' in 'KEY=VAL'
-    var keyValueArr = line.match(/^\s*([\w\.\-]+)\s*=\s*(.*)?\s*$/)
+    var keyValueArr = line.match(/^\s*(?:export )?\s*([\w\.\-]+)\s*=\s*(.*)?\s*$/)
     // matched?
     if (keyValueArr != null) {
       var key = keyValueArr[1]

test/.env

@@ -16,3 +16,5 @@ RETAIN_INNER_QUOTES={"foo": "bar"}
 RETAIN_INNER_QUOTES_AS_STRING='{"foo": "bar"}'
 INCLUDE_SPACE=some spaced out string
 USERNAME="therealnerdybeast@example.tld"
+export EXPORT_VAR="exported var"
+export_foo="is not chopped off"

test/main.js

@@ -179,5 +179,15 @@ describe('dotenv', function () {
       parsed.should.have.property('USERNAME', 'therealnerdybeast@example.tld')
       done()
     })
+
+    it('parses exported variables properly', function (done) {
+      parsed.should.have.property('EXPORT_VAR', 'exported var')
+      done()
+    })
+
+    it('does not chop variable names that start with "export"', function (done) {
+      parsed.should.have.property('export_foo', 'is not chopped off')
+      done()
+    })
   })
 })