refactoring: experimental with models/errors package

models/errors/errors.go

@@ -0,0 +1,12 @@
+// Copyright 2017 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package errors
+
+import "errors"
+
+// New is a wrapper of real errors.New function.
+func New(text string) error {
+	return errors.New(text)
+}

models/errors/issue.go

@@ -0,0 +1,20 @@
+// Copyright 2017 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package errors
+
+import "fmt"
+
+type InvalidIssueReference struct {
+	Ref string
+}
+
+func IsInvalidIssueReference(err error) bool {
+	_, ok := err.(InvalidIssueReference)
+	return ok
+}
+
+func (err InvalidIssueReference) Error() string {
+	return fmt.Sprintf("invalid issue reference [ref: %s]", err.Ref)
+}

models/errors/login_source.go

@@ -0,0 +1,33 @@
+// Copyright 2017 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package errors
+
+import "fmt"
+
+type LoginSourceNotActivated struct {
+	SourceID int64
+}
+
+func IsLoginSourceNotActivated(err error) bool {
+	_, ok := err.(LoginSourceNotActivated)
+	return ok
+}
+
+func (err LoginSourceNotActivated) Error() string {
+	return fmt.Sprintf("login source is not activated [source_id: %d]", err.SourceID)
+}
+
+type InvalidLoginSourceType struct {
+	Type interface{}
+}
+
+func IsInvalidLoginSourceType(err error) bool {
+	_, ok := err.(InvalidLoginSourceType)
+	return ok
+}
+
+func (err InvalidLoginSourceType) Error() string {
+	return fmt.Sprintf("invalid login source type [type: %v]", err.Type)
+}

models/errors/repo.go

@@ -0,0 +1,33 @@
+// Copyright 2017 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package errors
+
+import "fmt"
+
+type InvalidRepoReference struct {
+	Ref string
+}
+
+func IsInvalidRepoReference(err error) bool {
+	_, ok := err.(InvalidRepoReference)
+	return ok
+}
+
+func (err InvalidRepoReference) Error() string {
+	return fmt.Sprintf("invalid repository reference [ref: %s]", err.Ref)
+}
+
+type MirrorNotExist struct {
+	RepoID int64
+}
+
+func IsMirrorNotExist(err error) bool {
+	_, ok := err.(MirrorNotExist)
+	return ok
+}
+
+func (err MirrorNotExist) Error() string {
+	return fmt.Sprintf("mirror does not exist [repo_id: %d]", err.RepoID)
+}

models/errors/user.go

@@ -0,0 +1,31 @@
+// Copyright 2017 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package errors
+
+import "fmt"
+
+type EmptyName struct{}
+
+func IsEmptyName(err error) bool {
+	_, ok := err.(EmptyName)
+	return ok
+}
+
+func (err EmptyName) Error() string {
+	return "empty name"
+}
+
+type UserNotKeyOwner struct {
+	KeyID int64
+}
+
+func IsUserNotKeyOwner(err error) bool {
+	_, ok := err.(UserNotKeyOwner)
+	return ok
+}
+
+func (err UserNotKeyOwner) Error() string {
+	return fmt.Sprintf("user is not the owner of public key [key_id: %d]", err.KeyID)
+}

models/errors/user_mail.go

@@ -0,0 +1,33 @@
+// Copyright 2017 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package errors
+
+import "fmt"
+
+type EmailNotFound struct {
+	Email string
+}
+
+func IsEmailNotFound(err error) bool {
+	_, ok := err.(EmailNotFound)
+	return ok
+}
+
+func (err EmailNotFound) Error() string {
+	return fmt.Sprintf("email is not found [email: %s]", err.Email)
+}
+
+type EmailNotVerified struct {
+	Email string
+}
+
+func IsEmailNotVerified(err error) bool {
+	_, ok := err.(EmailNotVerified)
+	return ok
+}
+
+func (err EmailNotVerified) Error() string {
+	return fmt.Sprintf("email has not been verified [email: %s]", err.Email)
+}