forked from canonical/lxd
/
main.go
121 lines (101 loc) · 2.79 KB
/
main.go
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package main
import (
"fmt"
"log"
"os"
"strings"
"github.com/gosexy/gettext"
"github.com/lxc/lxd"
"github.com/lxc/lxd/internal/gnuflag"
"github.com/lxc/lxd/shared"
)
func main() {
if err := run(); err != nil {
fmt.Fprintf(os.Stderr, gettext.Gettext("error: %v\n"), err)
os.Exit(1)
}
}
func run() error {
gettext.BindTextdomain("lxd", "")
gettext.Textdomain("lxd")
verbose := gnuflag.Bool("v", false, gettext.Gettext("Enables verbose mode."))
debug := gnuflag.Bool("debug", false, gettext.Gettext("Enables debug mode."))
gnuflag.StringVar(&lxd.ConfigDir, "config", lxd.ConfigDir, gettext.Gettext("Alternate config directory."))
if len(os.Args) == 2 && (os.Args[1] == "-h" || os.Args[1] == "--help") {
os.Args[1] = "help"
}
if len(os.Args) == 2 && os.Args[1] == "--version" {
os.Args[1] = "version"
}
if len(os.Args) < 2 {
commands["help"].run(nil, nil)
os.Exit(1)
}
name := os.Args[1]
cmd, ok := commands[name]
if !ok {
fmt.Fprintf(os.Stderr, gettext.Gettext("error: unknown command: %s\n"), name)
commands["help"].run(nil, nil)
os.Exit(1)
}
cmd.flags()
gnuflag.Usage = func() {
fmt.Fprintf(os.Stderr, gettext.Gettext("Usage: %s\n\nOptions:\n\n"), strings.TrimSpace(cmd.usage()))
gnuflag.PrintDefaults()
}
os.Args = os.Args[1:]
gnuflag.Parse(true)
if *verbose || *debug {
shared.SetLogger(log.New(os.Stderr, "", log.LstdFlags))
shared.SetDebug(*debug)
}
config, err := lxd.LoadConfig()
if err != nil {
return err
}
certf := lxd.ConfigPath("client.crt")
keyf := lxd.ConfigPath("client.key")
_, err = os.Stat(certf)
_, err2 := os.Stat(keyf)
if os.Args[0] != "help" && os.Args[0] != "version" && (err != nil || err2 != nil) {
fmt.Fprintf(os.Stderr, gettext.Gettext("Generating a client certificate. This may take a minute...\n"))
err = shared.FindOrGenCert(certf, keyf)
if err != nil {
return err
}
}
err = cmd.run(config, gnuflag.Args())
if err == errArgs {
fmt.Fprintf(os.Stderr, gettext.Gettext("error: %v\n%s"), err, cmd.usage())
os.Exit(1)
}
return err
}
type command interface {
usage() string
flags()
showByDefault() bool
run(config *lxd.Config, args []string) error
}
var commands = map[string]command{
"config": &configCmd{},
"copy": ©Cmd{},
"delete": &deleteCmd{},
"exec": &execCmd{},
"file": &fileCmd{},
"finger": &fingerCmd{},
"help": &helpCmd{},
"image": &imageCmd{},
"info": &infoCmd{},
"init": &initCmd{},
"launch": &launchCmd{},
"list": &listCmd{},
"move": &moveCmd{},
"remote": &remoteCmd{},
"restart": &actionCmd{shared.Restart, true},
"snapshot": &snapshotCmd{},
"start": &actionCmd{shared.Start, false},
"stop": &actionCmd{shared.Stop, true},
"version": &versionCmd{},
}
var errArgs = fmt.Errorf(gettext.Gettext("wrong number of subcommand arguments"))