Method run

cmd/dagger/shell.go:274–287

run parses code and executes the interpreter's Runner

(ctx context.Context, reader io.Reader, name string)

// run parses code and executes the interpreter's Runner
func (h *shellCallHandler) run(ctx context.Context, reader io.Reader, name string) error {
	file, err := parseShell(reader, name)
	if err != nil {
		return err
	}

	stdio := telemetry.SpanStdio(ctx, InstrumentationLibrary)
	h.stdoutWriter = newTerminalWriter(stdio.Stdout.Write)
	h.stderrWriter = newTerminalWriter(stdio.Stderr.Write)
	interp.StdIO(nil, h.stdoutWriter, h.stderrWriter)(h.runner)
	h.stdoutWriter.SetProcessFunc(h.stateResolver(ctx))

	return h.runner.Run(ctx, file)
}

func parseShell(reader io.Reader, name string, opts ...syntax.ParserOption) (*syntax.File, error) {
	opts = append([]syntax.ParserOption{syntax.Variant(syntax.LangPOSIX)}, opts...)