package msg import ( "errors" "fmt" "io" "os/exec" "time" "git.sr.ht/~sircmpwn/aerc/commands" "git.sr.ht/~sircmpwn/aerc/widgets" "git.sr.ht/~sircmpwn/getopt" "github.com/gdamore/tcell" ) type Pipe struct{} func init() { register(Pipe{}) } func (Pipe) Aliases() []string { return []string{"pipe"} } func (Pipe) Complete(aerc *widgets.Aerc, args []string) []string { return nil } func (Pipe) Execute(aerc *widgets.Aerc, args []string) error { var ( background bool pipeFull bool pipePart bool ) // TODO: let user specify part by index or preferred mimetype opts, optind, err := getopt.Getopts(args, "bmp") if err != nil { return err } for _, opt := range opts { switch opt.Option { case 'b': background = true case 'm': if pipePart { return errors.New("-m and -p are mutually exclusive") } pipeFull = true case 'p': if pipeFull { return errors.New("-m and -p are mutually exclusive") } pipePart = true } } cmd := args[optind:] if len(cmd) == 0 { return errors.New("Usage: pipe [-mp] [args...]") } provider := aerc.SelectedTab().(widgets.ProvidesMessage) if !pipeFull && !pipePart { if _, ok := provider.(*widgets.MessageViewer); ok { pipePart = true } else if _, ok := provider.(*widgets.AccountView); ok { pipeFull = true } else { return errors.New( "Neither -m nor -p specified and cannot infer default") } } doTerm := func(reader io.Reader, name string) { term, err := commands.QuickTerm(aerc, cmd, reader) if err != nil { aerc.PushError(" " + err.Error()) return } aerc.NewTab(term, name) } doExec := func(reader io.Reader) { ecmd := exec.Command(cmd[0], cmd[1:]...) pipe, err := ecmd.StdinPipe() if err != nil { return } go func() { defer pipe.Close() io.Copy(pipe, reader) }() err = ecmd.Run() if err != nil { aerc.PushError(" "+err.Error()) } else { color := tcell.ColorDefault if ecmd.ProcessState.ExitCode() != 0 { color = tcell.ColorRed } aerc.PushStatus(fmt.Sprintf( "%s: completed with status %d", cmd[0], ecmd.ProcessState.ExitCode()), 10*time.Second). Color(tcell.ColorDefault, color) } } if pipeFull { store := provider.Store() if store == nil { return errors.New("Cannot perform action. Messages still loading") } msg, err := provider.SelectedMessage() if err != nil { return err } store.FetchFull([]uint32{msg.Uid}, func(reader io.Reader) { if background { doExec(reader) } else { doTerm(reader, fmt.Sprintf( "%s <%s", cmd[0], msg.Envelope.Subject)) } }) } else if pipePart { p := provider.SelectedMessagePart() store := provider.Store() store.FetchBodyPart(p.Msg.Uid, p.Msg.BodyStructure, p.Index, func(reader io.Reader) { if background { doExec(reader) } else { name := fmt.Sprintf("%s <%s/[%d]", cmd[0], p.Msg.Envelope.Subject, p.Index) doTerm(reader, name) } }) } return nil }