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https://github.com/danderson/netboot.git
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b5e956b9fc
This hack tries to interpret the commandline based on what Pixiecore v1 did, before handing off to the fancier v2 CLI logic. Doesn't support API mode yet, since that's not yet implemented in the library.
115 lines
3.1 KiB
Go
115 lines
3.1 KiB
Go
// Copyright 2016 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package cli implements the commandline interface for Pixiecore.
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package cli
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import (
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"fmt"
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"io/ioutil"
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"os"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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"go.universe.tf/netboot/pixiecore"
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)
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// Ipxe is the set of ipxe binaries for supported firmwares.
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//
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// Can be set externally before calling CLI(), and set/extended by
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// commandline processing in CLI().
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var Ipxe = map[pixiecore.Firmware][]byte{}
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// CLI runs the Pixiecore commandline.
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//
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// Takes a map of ipxe bootloader binaries for various architectures.
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func CLI() {
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// The ipxe firmware flags need to be set outside init(), so that
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// the default flag value is computed appropriately based on
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// whether the caller preseeded Ipxe.
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rootCmd.PersistentFlags().Var(ipxeFirmwareFlag(pixiecore.FirmwareX86PC), "ipxe-bios", "iPXE binary for BIOS/UNDI")
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rootCmd.PersistentFlags().Var(ipxeFirmwareFlag(pixiecore.FirmwareEFI32), "ipxe-efi32", "iPXE binary for 32-bit UEFI")
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rootCmd.PersistentFlags().Var(ipxeFirmwareFlag(pixiecore.FirmwareEFI64), "ipxe-efi64", "iPXE binary for 64-bit UEFI")
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if v1compatCLI() {
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return
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}
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if err := rootCmd.Execute(); err != nil {
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fmt.Println(err)
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os.Exit(-1)
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}
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}
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// This represents the base command when called without any subcommands
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var rootCmd = &cobra.Command{
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Use: "pixiecore",
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Short: "All-in-one network booting",
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Long: `Pixiecore is a tool to make network booting easy.`,
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}
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type ipxeFirmwareFlag pixiecore.Firmware
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func (iff ipxeFirmwareFlag) String() string {
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if Ipxe[pixiecore.Firmware(iff)] != nil {
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return "<builtin>"
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}
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return ""
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}
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func (iff ipxeFirmwareFlag) Set(v string) error {
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bs, err := ioutil.ReadFile(v)
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if err != nil {
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return fmt.Errorf("couldn't read ipxe binary %q: %s", v, err)
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}
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Ipxe[pixiecore.Firmware(iff)] = bs
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return nil
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}
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func (ipxeFirmwareFlag) Type() string {
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return "filename"
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}
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var cfgFile string
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func init() {
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cobra.OnInitialize(initConfig)
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rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file")
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}
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func initConfig() {
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if cfgFile != "" { // enable ability to specify config file via flag
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viper.SetConfigFile(cfgFile)
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if err := viper.ReadInConfig(); err != nil {
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fmt.Printf("Error reading configuration file %q: %s\n", viper.ConfigFileUsed(), err)
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os.Exit(1)
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}
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fmt.Println("Using config file:", viper.ConfigFileUsed())
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}
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viper.SetEnvPrefix("pixiecore")
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viper.AutomaticEnv() // read in environment variables that match
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}
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func fatalf(msg string, args ...interface{}) {
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fmt.Printf(msg+"\n", args...)
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os.Exit(1)
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}
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func todo(msg string, args ...interface{}) {
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fatalf("TODO: "+msg, args...)
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}
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