Use the drone-go StringSlice instead of custom implementation

types.go

@@ -1,45 +1,13 @@
 package main
 
-import "encoding/json"
+import (
+	"github.com/drone/drone-go/drone"
+)
 
-// StrSlice representes a string or an array of strings.
+type Params struct {
-// We need to override the json decoder to accept both options.
+	Commands []string          `json:"commands"`
-type StrSlice struct {
+	Login    string            `json:"user"`
-	parts []string
+	Port     int               `json:"port"`
-}
+	Host     drone.StringSlice `json:"host"`
-
+	Sleep    int               `json:"sleep"`
-// UnmarshalJSON decodes the byte slice whether it's a string or an array of strings.
-// This method is needed to implement json.Unmarshaler.
-func (e *StrSlice) UnmarshalJSON(b []byte) error {
-	if len(b) == 0 {
-		return nil
-	}
-
-	p := make([]string, 0, 1)
-	if err := json.Unmarshal(b, &p); err != nil {
-		var s string
-		if err := json.Unmarshal(b, &s); err != nil {
-			return err
-		}
-		p = append(p, s)
-	}
-
-	e.parts = p
-	return nil
-}
-
-// Len returns the number of parts of the StrSlice.
-func (e *StrSlice) Len() int {
-	if e == nil {
-		return 0
-	}
-	return len(e.parts)
-}
-
-// Slice gets the parts of the StrSlice as a Slice of string.
-func (e *StrSlice) Slice() []string {
-	if e == nil {
-		return nil
-	}
-	return e.parts
 }