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common.go
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/
common.go
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/*
* Copyright (c) 2022, MegaEase
* All rights reserved.
*
* 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
*
* https://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 probe
import (
"fmt"
"strings"
)
// CommandLine will return the whole command line which includes command and all arguments
func CommandLine(cmd string, args []string) string {
result := cmd
for _, arg := range args {
result += " " + arg
}
return result
}
// CheckOutput checks the output text,
// - if it contains a configured string then return nil
// - if it does not contain a configured string then return nil
func CheckOutput(Contain, NotContain, Output string) error {
if len(Contain) > 0 && !strings.Contains(Output, Contain) {
return fmt.Errorf("the output does not contain [%s]", Contain)
}
if len(NotContain) > 0 && strings.Contains(Output, NotContain) {
return fmt.Errorf("the output contains [%s]", NotContain)
}
return nil
}
// CheckEmpty return "empty" if the string is empty
func CheckEmpty(s string) string {
if len(strings.TrimSpace(s)) <= 0 {
return "empty"
}
return s
}