| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You 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 app |
| |
| import ( |
| "fmt" |
| ) |
| |
| type appError struct { |
| exitCode int |
| message string |
| } |
| |
| func newAppError(exitCode int, message string) *appError { |
| if exitCode == 0 { |
| message = fmt.Sprintf( |
| "got invalid exit code %d when constructing error (original message was %q)", |
| exitCode, |
| message, |
| ) |
| exitCode = 1 |
| } |
| return &appError{ |
| exitCode: exitCode, |
| message: message, |
| } |
| } |
| |
| func (e *appError) Error() string { |
| return e.message |
| } |
| |
| func printError(container StderrContainer, err error) { |
| if errString := err.Error(); errString != "" { |
| _, _ = fmt.Fprintln(container.Stderr(), errString) |
| } |
| } |