func main() {
defer shutdown.Exit()
usage := `
usage: flynn-blobstore <command> [<args>...]
Commands:
help show usage for a specific command
cleanup delete file blobs from default backend
migrate move file blobs from default backend to a different backend
server run blobstore HTTP server
See 'flynn-blobstore help <command>' for more information on a specific command.
`[1:]
args, _ := docopt.Parse(usage, nil, true, version.String(), true)
cmd := args.String["<command>"]
cmdArgs := args.All["<args>"].([]string)
if cmd == "help" {
if len(cmdArgs) == 0 { // `flynn-blobstore help`
fmt.Println(usage)
return
} else { // `flynn-blobstore help <command>`
cmd = cmdArgs[0]
cmdArgs = []string{"--help"}
}
}
if err := runCommand(cmd, cmdArgs); err != nil {
log.Println(err)
shutdown.ExitWithCode(1)
}
}
func runCommand(name string, args []string) (err error) {
argv := make([]string, 1, 1+len(args))
argv[0] = name
argv = append(argv, args...)
cmd, ok := commands[name]
if !ok {
return fmt.Errorf("%s is not a flynn-blobstore command. See 'flynn-blobstore help'", name)
}
parsedArgs, err := docopt.Parse(cmd.usage, argv, true, "", false)
if err != nil {
return err
}
return cmd.f(parsedArgs)
}