support for secrets

Signed-off-by: Casey Lee <cplee@nektos.com>

cmd/secrets.go

@@ -0,0 +1,36 @@
+package cmd
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"strings"
+
+	"github.com/howeyc/gopass"
+)
+
+type secrets map[string]string
+
+func newSecrets(secretList []string) secrets {
+	s := make(map[string]string)
+	for _, secretPair := range secretList {
+		secretPairParts := strings.Split(secretPair, "=")
+		if len(secretPairParts) == 2 {
+			s[secretPairParts[0]] = secretPairParts[1]
+		} else if env, ok := os.LookupEnv(secretPairParts[0]); ok && env != "" {
+			s[secretPairParts[0]] = env
+		} else {
+			fmt.Printf("Provide value for '%s': ", secretPairParts[0])
+			val, err := gopass.GetPasswdMasked()
+			if err != nil {
+				log.Fatal("abort")
+			}
+			s[secretPairParts[0]] = string(val)
+		}
+	}
+	return s
+}
+
+func (s secrets) AsMap() map[string]string {
+	return s
+}