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Show custom usage on -help

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This commit is contained in:
Filippo Valsorda
2018-07-07 00:07:41 -04:00
parent fdd8fe8e17
commit c3bf865b0c
1 changed files with 23 additions and 21 deletions
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44
main.go
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@@ -20,11 +20,33 @@ import (
"golang.org/x/net/idna"
)
const usage = `Usage of mkcert:
$ mkcert -install
Install the local CA in the system trust store.
$ mkcert example.org
Generate "example.org.pem" and "example.org-key.pem".
$ mkcert example.com myapp.dev localhost 127.0.0.1 ::1
Generate "example.com+4.pem" and "example.com+4-key.pem".
$ mkcert '*.example.com'
Generate "_wildcard.example.com.pem" and "_wildcard.example.com-key.pem".
$ mkcert -uninstall
Uninstall the local CA (but do not delete it).
Change the CA certificate and key storage location by setting $CAROOT,
print it with "mkcert -CAROOT".
`
func main() {
log.SetFlags(0)
var installFlag = flag.Bool("install", false, "install the local root CA in the system trust store")
var uninstallFlag = flag.Bool("uninstall", false, "uninstall the local root CA from the system trust store")
var carootFlag = flag.Bool("CAROOT", false, "print the CAROOT path")
flag.Usage = func() { fmt.Fprintf(flag.CommandLine.Output(), usage) }
flag.Parse()
if *carootFlag {
if *installFlag || *uninstallFlag {
@@ -89,27 +111,7 @@ func (m *mkcert) Run(args []string) {
}
if len(args) == 0 {
log.Printf(`
Usage:
$ mkcert -install
Install the local CA in the system trust store.
$ mkcert example.org
Generate "example.org.pem" and "example.org-key.pem".
$ mkcert example.com myapp.dev localhost 127.0.0.1 ::1
Generate "example.com+4.pem" and "example.com+4-key.pem".
$ mkcert '*.example.com'
Generate "_wildcard.example.com.pem" and "_wildcard.example.com-key.pem".
$ mkcert -uninstall
Uninstall the local CA (but do not delete it).
Change the CA certificate and key storage location by setting $CAROOT,
print it with "mkcert -CAROOT".
`)
log.Printf("\n%s", usage)
return
}