Merge pull request joho#27 from goenning/empty_var

allow usage of empty var on .env

Author: joho

fixtures/plain.env

@@ -3,3 +3,5 @@ OPTION_B=2
 OPTION_C= 3
 OPTION_D =4
 OPTION_E = 5
+OPTION_F = 
+OPTION_G=

godotenv.go

@@ -212,20 +212,23 @@ func parseLine(line string) (key string, value string, err error) {
 
 	// Parse the value
 	value = splitString[1]
+
 	// trim
 	value = strings.Trim(value, " ")
 
 	// check if we've got quoted values
-	first := string(value[0:1])
-	last := string(value[len(value)-1:])
-	if first == last && strings.ContainsAny(first, `"'`) {
-		// pull the quotes off the edges
-		value = strings.Trim(value, `"'`)
-
-		// expand quotes
-		value = strings.Replace(value, `\"`, `"`, -1)
-		// expand newlines
-		value = strings.Replace(value, `\n`, "\n", -1)
+	if value != "" {
+		first := string(value[0:1])
+		last := string(value[len(value)-1:])
+		if first == last && strings.ContainsAny(first, `"'`) {
+			// pull the quotes off the edges
+			value = strings.Trim(value, `"'`)
+
+			// expand quotes
+			value = strings.Replace(value, `\"`, `"`, -1)
+			// expand newlines
+			value = strings.Replace(value, `\n`, "\n", -1)
+		}
 	}
 
 	return

godotenv_test.go

@@ -74,6 +74,8 @@ func TestReadPlainEnv(t *testing.T) {
 		"OPTION_C": "3",
 		"OPTION_D": "4",
 		"OPTION_E": "5",
+		"OPTION_F": "",
+		"OPTION_G": "",
 	}
 
 	envMap, err := Read(envFileName)