| 1 | package builtin |
| 2 | |
| 3 | import ( |
| 4 | "errors" |
| 5 | "fmt" |
| 6 | ) |
| 7 | |
| 8 | // errCommandLineTooLong marks a launch the OS would refuse because the |
| 9 | // command line itself is over its length ceiling; nothing was started. |
| 10 | var errCommandLineTooLong = errors.New("command line too long") |
| 11 | |
| 12 | // checkCommandLine refuses argv that cannot be launched on this OS, so the |
| 13 | // model learns the host limit instead of a misleading "filename or extension |
| 14 | // is too long" from process creation. |
| 15 | func checkCommandLine(argv []string) error { |
| 16 | units, limit := commandLineUnits(argv) |
| 17 | if limit == 0 || units <= limit { |
| 18 | return nil |
| 19 | } |
| 20 | return fmt.Errorf("%w: the command is %d characters and Windows accepts at most %d, so it was not run. "+ |
| 21 | "Write long text with write_file or edit_file and have the command read that file, or split the work into smaller commands", |
| 22 | errCommandLineTooLong, units, limit) |
| 23 | } |
| 24 |