本文整理汇总了Golang中launchpad/net/gnuflag.FlagSet.Usage方法的典型用法代码示例。如果您正苦于以下问题：Golang FlagSet.Usage方法的具体用法？Golang FlagSet.Usage怎么用？Golang FlagSet.Usage使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类launchpad/net/gnuflag.FlagSet的用法示例。
在下文中一共展示了FlagSet.Usage方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: parseArgs
func parseArgs(fset *flag.FlagSet, args []string) (*params, error) {
var p params
var printHeaders, noBody, noCookies bool
fset.BoolVar(&p.json, "j", false, "serialize data items as a JSON object")
fset.BoolVar(&p.json, "json", false, "")
fset.BoolVar(&p.form, "f", false, "serialize data items as form values")
fset.BoolVar(&p.form, "form", false, "")
fset.BoolVar(&printHeaders, "h", false, "print the response headers")
fset.BoolVar(&printHeaders, "headers", false, "")
fset.BoolVar(&noBody, "B", false, "do not print response body")
fset.BoolVar(&noBody, "body", false, "")
fset.BoolVar(&p.debug, "debug", false, "print debugging messages")
fset.BoolVar(&p.noBrowser, "W", false, "do not open macaroon-login URLs in web browser")
fset.BoolVar(&p.noBrowser, "no-browser", false, "")
fset.BoolVar(&p.raw, "raw", false, "print response body without any JSON post-processing")
fset.StringVar(&p.basicAuth, "a", "", "http basic auth (username:password)")
fset.StringVar(&p.basicAuth, "auth", "", "")
fset.BoolVar(&p.insecure, "insecure", false, "skip HTTPS certificate checking")
fset.StringVar(&p.cookieFile, "cookiefile", filepath.Join(os.Getenv("HOME"), ".go-cookies"), "file to store persistent cookies in")
fset.BoolVar(&noCookies, "C", false, "disable cookie storage")
fset.BoolVar(&noCookies, "no-cookies", false, "")
fset.BoolVar(&p.useStdin, "stdin", false, "read request body from standard input")
// TODO --file (multipart upload)
// TODO --timeout
// TODO --proxy
// TODO (??) --verify
fset.Usage = func() {
fmt.Fprint(os.Stderr, helpMessage)
fset.PrintDefaults()
}
if err := fset.Parse(true, args); err != nil {
return nil, err
}
if noCookies {
p.cookieFile = ""
}
p.headers = printHeaders
p.body = !noBody
args = fset.Args()
if len(args) == 0 {
return nil, errUsage
}
if isMethod(args[0]) {
p.method, args = strings.ToUpper(args[0]), args[1:]
if len(args) == 0 {
return nil, errUsage
}
}
urlStr := args[0]
if strings.HasPrefix(urlStr, ":") {
// shorthand for localhost.
if strings.HasPrefix(urlStr, ":/") {
urlStr = "http://localhost" + urlStr[1:]
} else {
urlStr = "http://localhost" + urlStr
}
}
if !strings.HasPrefix(urlStr, "http:") && !strings.HasPrefix(urlStr, "https:") {
urlStr = "http://" + urlStr
}
u, err := url.Parse(urlStr)
if err != nil {
return nil, fmt.Errorf("invalid URL %q: %v", args[0], err)
}
if u.Host == "" {
u.Host = "localhost"
}
p.url, args = u, args[1:]
p.keyVals = make([]keyVal, len(args))
for i, arg := range args {
kv, err := parseKeyVal(arg)
if err != nil {
return nil, fmt.Errorf("cannot parse %q: %v", arg, err)
}
if kv.sep == "=" && p.method == "" {
p.method = "POST"
}
p.keyVals[i] = kv
}
if p.method == "" {
p.method = "GET"
}
return &p, nil
}