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// Copyright The Notary Project Authors.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package plugin
import "errors"
// ErrNotCompliant is returned by plugin methods when the response is not
// compliant.
var ErrNotCompliant = errors.New("plugin not compliant")
// ErrNotRegularFile is returned when the plugin file is not an regular file.
var ErrNotRegularFile = errors.New("plugin executable file is not a regular file")
// PluginDowngradeError is returned when installing a plugin with version
// lower than the exisiting plugin version.
type PluginDowngradeError struct {
Msg string
}
// Error returns the error message.
func (e PluginDowngradeError) Error() string {
if e.Msg != "" {
return e.Msg
}
return "installing plugin with version lower than the existing plugin version"
}
// InstallEqualVersionError is returned when installing a plugin with version
// equal to the exisiting plugin version.
type InstallEqualVersionError struct {
Msg string
}
// Error returns the error message.
func (e InstallEqualVersionError) Error() string {
if e.Msg != "" {
return e.Msg
}
return "installing plugin with version equal to the existing plugin version"
}
// PluginMalformedError is used when there is an issue with plugin and
// should be fixed by plugin developers.
type PluginMalformedError struct {
Msg string
InnerError error
}
// Error returns the error message.
func (e PluginMalformedError) Error() string {
if e.Msg != "" {
return e.Msg
}
return e.InnerError.Error()
}
// Unwrap returns the inner error.
func (e PluginMalformedError) Unwrap() error {
return e.InnerError
}
// PluginDirectoryWalkError is used when there is an issue with plugins directory
// and should suggest user to check the permission of plugin directory.
type PluginDirectoryWalkError error
// PluginExecutableFileError is used when there is an issue with plugin
// executable file and should suggest user to check the existence, permission
// and platform/arch compatibility of plugin.
type PluginExecutableFileError struct {
Msg string
InnerError error
}
// Error returns the error message.
func (e PluginExecutableFileError) Error() string {
if e.Msg != "" {
return e.Msg
}
return e.InnerError.Error()
}
// Unwrap returns the inner error.
func (e PluginExecutableFileError) Unwrap() error {
return e.InnerError
}
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