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usage.go
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usage.go
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/*
* Copyright 2018 Venafi, Inc.
*
* 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 main
import (
"bytes"
"fmt"
"os"
"unicode"
)
func wrapArgumentDescriptionText(text string) string {
const limit = 80
buf := bytes.NewBuffer(make([]byte, 0, len(text)))
var (
current int
word bytes.Buffer
space bytes.Buffer
)
for _, char := range text {
if unicode.IsSpace(char) {
if space.Len() == 0 || word.Len() > 0 {
current += space.Len() + word.Len()
space.WriteTo(buf)
space.Reset()
word.WriteTo(buf)
word.Reset()
}
space.WriteRune(char)
} else {
word.WriteRune(char)
if current+space.Len()+word.Len() > limit && word.Len() < limit {
buf.WriteRune('\n')
buf.WriteRune('\t')
current = 0
space.Reset()
}
}
}
if word.Len() == 0 {
if current+space.Len() <= limit {
space.WriteTo(buf)
}
} else {
space.WriteTo(buf)
word.WriteTo(buf)
}
return buf.String()
}
func showvcertUsage() {
fmt.Printf("%s\n", GetFormattedVersionString())
fmt.Printf("\tTo gain access to the Venafi Cloud service, use the 'register' action.\n")
fmt.Printf("\tTo generate a certificate signing request (CSR), use the 'gencsr' action.\n")
fmt.Printf("\tTo enroll a certificate, use the 'enroll' action.\n")
fmt.Printf("\tTo retrieve a certificate, use the 'pickup' action.\n")
fmt.Printf("\tTo renew a certificate, use the 'renew' action.\n")
fmt.Printf("\tTo revoke a certificate, use the 'revoke' action.\n")
fmt.Printf("\tFor additional help run '%s <action> -h'\n\n", os.Args[0])
}