// Parse parses the input commandline string (cmd, flags, and args).
// returns the corresponding command Request object.
func Parse(input []string, stdin *os.File, root *cmds.Command) (cmds.Request, *cmds.Command, []string, error) {
path, input, cmd := parsePath(input, root)
if len(path) == 0 {
return nil, nil, path, ErrInvalidSubcmd
}
opts, stringVals, err := parseOptions(input)
if err != nil {
return nil, cmd, path, err
}
optDefs, err := root.GetOptions(path)
if err != nil {
return nil, cmd, path, err
}
// check to make sure there aren't any undefined options
for k := range opts {
if _, found := optDefs[k]; !found {
err = fmt.Errorf("Unrecognized option: -%s", k)
return nil, cmd, path, err
}
}
req, err := cmds.NewRequest(path, opts, nil, nil, cmd, optDefs)
if err != nil {
return nil, cmd, path, err
}
// if -r is provided, and it is associated with the package builtin
// recursive path option, allow recursive file paths
recursiveOpt := req.Option(cmds.RecShort)
recursive := false
if recursiveOpt != nil && recursiveOpt.Definition() == cmds.OptionRecursivePath {
recursive, _, err = recursiveOpt.Bool()
if err != nil {
return req, nil, nil, u.ErrCast()
}
}
stringArgs, fileArgs, err := parseArgs(stringVals, stdin, cmd.Arguments, recursive)
if err != nil {
return req, cmd, path, err
}
req.SetArguments(stringArgs)
file := &cmds.SliceFile{"", fileArgs}
req.SetFiles(file)
err = cmd.CheckArguments(req)
if err != nil {
return req, cmd, path, err
}
return req, cmd, path, nil
}
func (ov OptionValue) Float() (value float64, found bool, err error) {
if !ov.found {
return 0, false, nil
}
val, ok := ov.value.(float64)
if !ok {
err = util.ErrCast()
}
return val, ov.found, err
}
func (ov OptionValue) Uint() (value uint, found bool, err error) {
if !ov.found {
return 0, false, nil
}
val, ok := ov.value.(uint)
if !ok {
err = util.ErrCast()
}
return val, ov.found, err
}
// value accessor methods, gets the value as a certain type
func (ov OptionValue) Bool() (value bool, found bool, err error) {
if !ov.found {
return false, false, nil
}
val, ok := ov.value.(bool)
if !ok {
err = util.ErrCast()
}
return val, ov.found, err
}
func bootstrapMarshaler(res cmds.Response) ([]byte, error) {
v, ok := res.Output().(*BootstrapOutput)
if !ok {
return nil, u.ErrCast()
}
var buf bytes.Buffer
err := bootstrapWritePeers(&buf, "", v.Peers)
return buf.Bytes(), err
}
func CastToReaders(slice []interface{}) ([]io.Reader, error) {
readers := make([]io.Reader, 0)
for _, arg := range slice {
reader, ok := arg.(io.Reader)
if !ok {
return nil, u.ErrCast()
}
readers = append(readers, reader)
}
return readers, nil
}
func CastToStrings(slice []interface{}) ([]string, error) {
strs := make([]string, 0)
for _, maybe := range slice {
str, ok := maybe.(string)
if !ok {
return nil, u.ErrCast()
}
strs = append(strs, str)
}
return strs, nil
}
func (r *request) ConvertOptions() error {
for k, v := range r.options {
opt, ok := r.optionDefs[k]
if !ok {
continue
}
kind := reflect.TypeOf(v).Kind()
if kind != opt.Type() {
if kind == String {
convert := converters[opt.Type()]
str, ok := v.(string)
if !ok {
return u.ErrCast()
}
val, err := convert(str)
if err != nil {
value := fmt.Sprintf("value '%v'", v)
if len(str) == 0 {
value = "empty value"
}
return fmt.Errorf("Could not convert %s to type '%s' (for option '-%s')",
value, opt.Type().String(), k)
}
r.options[k] = val
} else {
return fmt.Errorf("Option '%s' should be type '%s', but got type '%s'",
k, opt.Type().String(), kind.String())
}
} else {
r.options[k] = v
}
for _, name := range opt.Names() {
if _, ok := r.options[name]; name != k && ok {
return fmt.Errorf("Duplicate command options were provided ('%s' and '%s')",
k, name)
}
}
}
return nil
}
}
p, err := node.Routing.FindPeer(ctx, id)
if err == kb.ErrLookupFailure {
return nil, errors.New(offlineIdErrorMessage)
}
if err != nil {
return nil, err
}
return printPeer(p)
},
Marshalers: cmds.MarshalerMap{
cmds.Text: func(res cmds.Response) ([]byte, error) {
val, ok := res.Output().(*IdOutput)
if !ok {
return nil, u.ErrCast()
}
return json.MarshalIndent(val, "", "\t")
},
},
Type: &IdOutput{},
}
func printPeer(p peer.Peer) (interface{}, error) {
if p == nil {
return nil, errors.New("Attempted to print nil peer!")
}
info := new(IdOutput)
info.ID = p.ID().String()
ID: peer.ID,
UptimeSeconds: uint64(peer.LifeSpan.Seconds()),
BandwidthBytesIn: peer.BwIn,
BandwidthBytesOut: peer.BwOut,
Connections: connections,
}
}
return &DiagnosticOutput{output}, nil
},
Type: &DiagnosticOutput{},
Marshalers: cmds.MarshalerMap{
cmds.Text: func(r cmds.Response) ([]byte, error) {
output, ok := r.Output().(*DiagnosticOutput)
if !ok {
return nil, util.ErrCast()
}
var buf bytes.Buffer
err := printDiagnostics(&buf, output)
if err != nil {
return nil, err
}
return buf.Bytes(), nil
},
},
}
func printDiagnostics(out io.Writer, info *DiagnosticOutput) error {
diagTmpl := `
{{ range $peer := .Peers }}
