forked from wealdtech/ethereal
/
errcheck.go
57 lines (51 loc) · 1.37 KB
/
errcheck.go
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// Copyright 2017 Orinoco Payments
//
// 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 cli
import (
"fmt"
"os"
)
// ErrCheck checks for an error and quits if it is present
func ErrCheck(err error, quiet bool, msg string) {
if err != nil {
if !quiet {
fmt.Fprintf(os.Stderr, "%s: %s\n", msg, err.Error())
}
os.Exit(1)
}
}
// ErrAssert checks a condition and quits if it is false
func ErrAssert(condition bool, err error, quiet bool, msg string) {
if !condition {
if err != nil {
if !quiet {
fmt.Fprintf(os.Stderr, "%s: %s\n", msg, err.Error())
}
os.Exit(1)
}
}
}
// Assert checks a condition and quits if it is false
func Assert(condition bool, quiet bool, msg string) {
if !condition {
Err(quiet, msg)
}
}
// Err prints an erro rand quits
func Err(quiet bool, msg string) {
if !quiet {
fmt.Fprintf(os.Stderr, "%s\n", msg)
}
os.Exit(1)
}