From 4d60b372aad526abf2fcfb471bf7a484edcc6657 Mon Sep 17 00:00:00 2001
From: Jean-Laurent de Morlhon <jeanlaurent@morlhon.net>
Date: Tue, 30 May 2017 09:45:00 +0200
Subject: [PATCH] Add a version command

Signed-off-by: Jean-Laurent de Morlhon <jeanlaurent@morlhon.net>
---
 credentials/credentials.go | 14 +++++++++++---
 credentials/version.go     |  4 ++++
 2 files changed, 15 insertions(+), 3 deletions(-)
 create mode 100644 credentials/version.go

diff --git a/credentials/credentials.go b/credentials/credentials.go
index 544ab3c..0025a76 100644
--- a/credentials/credentials.go
+++ b/credentials/credentials.go
@@ -50,7 +50,7 @@ func SetCredsLabel(label string) {
 func Serve(helper Helper) {
 	var err error
 	if len(os.Args) != 2 {
-		err = fmt.Errorf("Usage: %s <store|get|erase|list>", os.Args[0])
+		err = fmt.Errorf("Usage: %s <store|get|erase|list|version>", os.Args[0])
 	}
 
 	if err == nil {
@@ -74,6 +74,8 @@ func HandleCommand(helper Helper, key string, in io.Reader, out io.Writer) error
 		return Erase(helper, in)
 	case "list":
 		return List(helper, out)
+	case "version":
+		return PrintVersion(out)
 	}
 	return fmt.Errorf("Unknown credential action `%s`", key)
 }
@@ -131,8 +133,8 @@ func Get(helper Helper, reader io.Reader, writer io.Writer) error {
 
 	resp := Credentials{
 		ServerURL: serverURL,
-		Username: username,
-		Secret:   secret,
+		Username:  username,
+		Secret:    secret,
 	}
 
 	buffer.Reset()
@@ -175,3 +177,9 @@ func List(helper Helper, writer io.Writer) error {
 	}
 	return json.NewEncoder(writer).Encode(accts)
 }
+
+//PrintVersion outputs the current version.
+func PrintVersion(writer io.Writer) error {
+	fmt.Fprintln(writer, Version)
+	return nil
+}
diff --git a/credentials/version.go b/credentials/version.go
new file mode 100644
index 0000000..8c55934
--- /dev/null
+++ b/credentials/version.go
@@ -0,0 +1,4 @@
+package credentials
+
+// Version holds a string describing the current version
+const Version = "0.5.1"