(args []string)
| 45 | } |
| 46 | |
| 47 | func (c *Command) Run(args []string) error { |
| 48 | ctx, cleanup, err := c.Init(&c.outputFlags) |
| 49 | if err != nil { |
| 50 | return err |
| 51 | } |
| 52 | defer cleanup() |
| 53 | if len(args) != 2 { |
| 54 | return errors.New("super dev dig slice: requires a from:to specifier and a file") |
| 55 | } |
| 56 | uri, err := storage.ParseURI(args[1]) |
| 57 | if err != nil { |
| 58 | return err |
| 59 | } |
| 60 | engine := storage.NewLocalEngine() |
| 61 | r, err := engine.Get(ctx, uri) |
| 62 | if err != nil { |
| 63 | return err |
| 64 | } |
| 65 | defer r.Close() |
| 66 | size, err := storage.Size(r) |
| 67 | if err != nil { |
| 68 | return err |
| 69 | } |
| 70 | from, to, err := parseSlice(args[0], size) |
| 71 | if err != nil { |
| 72 | return err |
| 73 | } |
| 74 | if from == to { |
| 75 | return errors.New("empty slice") |
| 76 | } |
| 77 | if from > to { |
| 78 | return errors.New("slice start cannot be after the end") |
| 79 | } |
| 80 | sctx := super.NewContext() |
| 81 | reader := bsupio.NewReader(sctx, io.NewSectionReader(r, int64(from), int64(to-from))) |
| 82 | defer reader.Close() |
| 83 | writer, err := c.outputFlags.Open(ctx, engine) |
| 84 | if err != nil { |
| 85 | return err |
| 86 | } |
| 87 | if err := vio.Copy(writer, sbuf.NewDematerializer(sctx, sbuf.NewPuller(reader))); err != nil { |
| 88 | return err |
| 89 | } |
| 90 | return writer.Close() |
| 91 | } |
| 92 | |
| 93 | func parseSlice(s string, end int64) (int, int, error) { |
| 94 | vals := strings.Split(s, ":") |
nothing calls this directly
no test coverage detected