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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2019 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package main
import (
"fmt"
"os"
"github.com/jessevdk/go-flags"
"github.com/snapcore/snapd/logger"
"github.com/snapcore/snapd/secboot"
)
var (
shortHelp = "Bootstrap a Ubuntu Core system"
longHelp = `
snap-bootstrap is a tool to bootstrap Ubuntu Core from ephemeral systems
such as initramfs.
`
opts struct{}
commandBuilders []func(*flags.Parser)
)
func main() {
secboot.HijackAndRunArgon2OutOfProcessHandlerOnArg([]string{"argon2-proc"})
err := run(os.Args[1:])
if err != nil {
fmt.Fprintf(os.Stderr, "error: %s\n", err)
os.Exit(1)
}
}
func run(args []string) error {
if os.Getuid() != 0 {
return fmt.Errorf("please run as root")
}
logger.BootSetup()
return parseArgs(args)
}
func parseArgs(args []string) error {
p := parser()
_, err := p.ParseArgs(args)
if err != nil {
logger.Noticef("execution error: %v", err)
}
return err
}
func parser() *flags.Parser {
p := flags.NewParser(&opts, flags.HelpFlag|flags.PassDoubleDash|flags.PassAfterNonOption)
p.ShortDescription = shortHelp
p.LongDescription = longHelp
for _, builder := range commandBuilders {
builder(p)
}
return p
}
func addCommandBuilder(builder func(*flags.Parser)) {
commandBuilders = append(commandBuilders, builder)
}
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