github.com/coreos/rocket@v1.30.1-0.20200224141603-171c416fac02/rkt/main.go (about)

     1  // Copyright 2016 The rkt Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package main
    16  
    17  import (
    18  	"os"
    19  
    20  	"github.com/rkt/rkt/pkg/multicall"
    21  )
    22  
    23  func main() {
    24  	// check if rkt is executed with a multicall command
    25  	multicall.MaybeExec()
    26  
    27  	cmdRkt.SetUsageFunc(usageFunc)
    28  
    29  	// Make help just show the usage
    30  	cmdRkt.SetHelpTemplate(`{{.UsageString}}`)
    31  
    32  	if err := cmdRkt.Execute(); err != nil && cmdExitCode == 0 {
    33  		// err already printed by cobra on stderr
    34  		cmdExitCode = 254 // invalid argument
    35  	}
    36  	os.Exit(cmdExitCode)
    37  }