Add EnvironMap() that converts os.Environ() output to a map

os.go

@@ -1,6 +1,26 @@
 package dry
 
-import "os"
+import (
+	"os"
+	"strings"
+)
+
+// EnvironMap returns the current environment variables as a map.
+func EnvironMap() map[string]string {
+	return environToMap(os.Environ())
+}
+
+func environToMap(environ []string) map[string]string {
+	ret := make(map[string]string)
+
+	for _, v := range environ {
+		parts := strings.SplitN(v, "=", 2)
+
+		ret[parts[0]] = parts[1]
+	}
+
+	return ret
+}
 
 // GetenvDefault retrieves the value of the environment variable
 // named by the key. It returns the given defaultValue if the

os_test.go

@@ -2,6 +2,25 @@ package dry
 
 import "testing"
 
+func TestEnvironMap(t *testing.T) {
+	ret := environToMap([]string{
+		"a=b",
+		"b=c=d",
+	})
+
+	if len(ret) != 2 {
+		t.Fail()
+	}
+
+	if ret["a"] != "b" {
+		t.Fail()
+	}
+
+	if ret["b"] != "c=d" {
+		t.Fail()
+	}
+}
+
 func TestGetenvDefault(t *testing.T) {
 	if GetenvDefault("GO_DRY_BOGUS_ENVIRONMENT_VARIABLE", "default") != "default" {
 		t.Fail()