fix: allow events yaml unmarshal (#370)

library/events.go

@@ -3,10 +3,12 @@
 package library
 
 import (
+	"errors"
 	"fmt"
 
 	"github.com/go-vela/types/constants"
 	"github.com/go-vela/types/library/actions"
+	"github.com/go-vela/types/raw"
 )
 
 // Events is the library representation of the various events that generate a
@@ -19,6 +21,29 @@ type Events struct {
 	Schedule    *actions.Schedule `json:"schedule"`
 }
 
+// UnmarshalYAML implements the Unmarshaler interface for the Events type.
+func (e *Events) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	// string slice we try unmarshalling to
+	stringSlice := new(raw.StringSlice)
+
+	// attempt to unmarshal as a string slice type
+	err := unmarshal(stringSlice)
+	if err == nil {
+		// create new events from string slice
+		evs, err := NewEventsFromSlice(*stringSlice)
+		if err != nil {
+			return err
+		}
+
+		// overwrite existing Events
+		*e = *evs
+
+		return nil
+	}
+
+	return errors.New("failed to unmarshal Events")
+}
+
 // NewEventsFromMask is an instatiation function for the Events type that
 // takes in an event mask integer value and populates the nested Events struct.
 func NewEventsFromMask(mask int64) *Events {

library/repo.go

@@ -28,12 +28,31 @@ type Repo struct {
 	Private      *bool     `json:"private,omitempty"`
 	Trusted      *bool     `json:"trusted,omitempty"`
 	Active       *bool     `json:"active,omitempty"`
-	AllowEvents  *Events   `json:"allow_events,omitempty"`
+	AllowEvents  *Events   `json:"allow_events,omitempty" yaml:"allow_events"`
 	PipelineType *string   `json:"pipeline_type,omitempty"`
 	PreviousName *string   `json:"previous_name,omitempty"`
 	ApproveBuild *string   `json:"approve_build,omitempty"`
 }
 
+// UnmarshalYAML implements the Unmarshaler interface for the Repo type.
+// This allows custom fields in the Repo type to be read from a YAML file, like AllowEvents.
+func (r *Repo) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	// create an alias to perform a normal unmarshal and avoid an infinite loop
+	type jsonRepo Repo
+
+	tmp := &jsonRepo{}
+
+	err := unmarshal(tmp)
+	if err != nil {
+		return err
+	}
+
+	// overwrite existing Repo
+	*r = Repo(*tmp)
+
+	return nil
+}
+
 // Environment returns a list of environment variables
 // provided from the fields of the Repo type.
 func (r *Repo) Environment() map[string]string {

library/secret.go

@@ -22,7 +22,7 @@ type Secret struct {
 	Value             *string   `json:"value,omitempty"`
 	Type              *string   `json:"type,omitempty"`
 	Images            *[]string `json:"images,omitempty"`
-	AllowEvents       *Events   `json:"allow_events,omitempty"`
+	AllowEvents       *Events   `json:"allow_events,omitempty" yaml:"allow_events"`
 	AllowCommand      *bool     `json:"allow_command,omitempty"`
 	AllowSubstitution *bool     `json:"allow_substitution,omitempty"`
 	CreatedAt         *int64    `json:"created_at,omitempty"`
@@ -31,6 +31,25 @@ type Secret struct {
 	UpdatedBy         *string   `json:"updated_by,omitempty"`
 }
 
+// UnmarshalYAML implements the Unmarshaler interface for the Secret type.
+// This allows custom fields in the Secret type to be read from a YAML file, like AllowEvents.
+func (s *Secret) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	// create an alias to perform a normal unmarshal and avoid an infinite loop
+	type jsonSecret Secret
+
+	tmp := &jsonSecret{}
+
+	err := unmarshal(tmp)
+	if err != nil {
+		return err
+	}
+
+	// overwrite existing secret
+	*s = Secret(*tmp)
+
+	return nil
+}
+
 // Sanitize creates a duplicate of the Secret without the value.
 func (s *Secret) Sanitize() *Secret {
 	// create a variable since constants can not be addressable