various fixes (#70)

- dont show ccr status if license insufficient
- add automated tests
- fix config loading
- fix search output
- fix `license show` panics
- fix `ilm show` completion
- print ask passwd prompt to stderr

pkg/es/license.go

@@ -39,18 +39,28 @@ func LicenseShow(conf *cfg.Config) error {
 	lic := res.License
 
 	var maxnodes = "infinite"
+	var maxunits = "infinite"
+	var expire = "never"
 
 	if lic.MaxNodes != nil {
 		maxnodes = fmt.Sprintf("%d", *lic.MaxNodes)
 	}
 
+	if lic.ExpiryDate != nil {
+		expire = lic.ExpiryDate.(string)
+	}
+
+	if lic.MaxResourceUnits != nil {
+		maxunits = fmt.Sprintf("%d", *lic.MaxResourceUnits)
+	}
+
 	table.Entries = [][]string{
 		{"UID", lic.Uid},
 		{"Issued to", lic.IssuedTo},
-		{"Expires", lic.ExpiryDate.(string)},
+		{"Expires", expire},
 		{"Issued", lic.IssueDate.(string)},
 		{"Max nodes", maxnodes},
-		{"Max resource units", fmt.Sprintf("%d", *lic.MaxResourceUnits)},
+		{"Max resource units", maxunits},
 		{"Type", lic.Type.Name},
 		{"Status", lic.Status.Name},
 	}