mirror of
https://github.com/danderson/netboot.git
synced 2025-08-09 16:17:11 +02:00
62e2f4bee3
The cli package is meant for single-shot execution anyway, so instead of plumbing everything through reentrantly, let's just have a global you can seed before calling CLI().
82 lines
2.3 KiB
Go
82 lines
2.3 KiB
Go
// Copyright 2016 Google 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 cli implements the commandline interface for Pixiecore.
|
|
package cli
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/spf13/cobra"
|
|
"github.com/spf13/viper"
|
|
"go.universe.tf/netboot/pixiecore"
|
|
)
|
|
|
|
// Ipxe is the set of ipxe binaries for supported firmwares.
|
|
//
|
|
// Can be set externally before calling CLI(), and set/extended by
|
|
// commandline processing in CLI().
|
|
var Ipxe = map[pixiecore.Firmware][]byte{}
|
|
|
|
// CLI runs the Pixiecore commandline.
|
|
//
|
|
// Takes a map of ipxe bootloader binaries for various architectures.
|
|
func CLI() {
|
|
if err := rootCmd.Execute(); err != nil {
|
|
fmt.Println(err)
|
|
os.Exit(-1)
|
|
}
|
|
}
|
|
|
|
var cfgFile string
|
|
|
|
// This represents the base command when called without any subcommands
|
|
var rootCmd = &cobra.Command{
|
|
Use: "pixiecore",
|
|
Short: "All-in-one network booting",
|
|
Long: `Pixiecore is a tool to make network booting easy.`,
|
|
// Uncomment the following line if your bare application
|
|
// has an action associated with it:
|
|
// Run: func(cmd *cobra.Command, args []string) { },
|
|
}
|
|
|
|
func init() {
|
|
cobra.OnInitialize(initConfig)
|
|
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file")
|
|
}
|
|
|
|
func initConfig() {
|
|
if cfgFile != "" { // enable ability to specify config file via flag
|
|
viper.SetConfigFile(cfgFile)
|
|
if err := viper.ReadInConfig(); err != nil {
|
|
fmt.Printf("Error reading configuration file %q: %s\n", viper.ConfigFileUsed(), err)
|
|
os.Exit(1)
|
|
}
|
|
fmt.Println("Using config file:", viper.ConfigFileUsed())
|
|
}
|
|
|
|
viper.SetEnvPrefix("pixiecore")
|
|
viper.AutomaticEnv() // read in environment variables that match
|
|
}
|
|
|
|
func fatalf(msg string, args ...interface{}) {
|
|
fmt.Printf(msg+"\n", args...)
|
|
os.Exit(1)
|
|
}
|
|
|
|
func todo(msg string, args ...interface{}) {
|
|
fatalf("TODO: "+msg, args...)
|
|
}
|