Commandline arguments mangled #882

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opened 2026-01-29 16:23:52 +00:00 by claunia · 3 comments

claunia commented 2026-01-29 16:23:52 +00:00

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Originally created by @agowa on GitHub (Dec 22, 2025).

Hi,

manually set command line arguments may be mangled. It appears like when someone adds multiple instances of the same parameter but with different values only the very last is actually passed to the executable.

Steps to reproduce:

1. Insert disk into drive.
2. Start MPF
3. Select drive and redumper as the dumping program
4. Edit the parameters and add e.g. --skip=5000-5100 --skip=6000-6100
5. Hit "Start Dumping"
6. ====> Observe the command line logged at the very top of the console window and log file. Only --skip=6000-6100 was passed to redumper.

Originally created by @agowa on GitHub (Dec 22, 2025). Hi, manually set command line arguments may be mangled. It appears like when someone adds multiple instances of the same parameter but with different values only the very last is actually passed to the executable. Steps to reproduce: 1. Insert disk into drive. 2. Start MPF 3. Select drive and redumper as the dumping program 4. Edit the parameters and add e.g. `--skip=5000-5100 --skip=6000-6100` 5. Hit "Start Dumping" 6. ====> Observe the command line logged at the very top of the console window and log file. Only `--skip=6000-6100` was passed to redumper.

claunia closed this issue 2026-01-29 16:23:52 +00:00

claunia commented 2026-01-29 16:23:53 +00:00

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@Deterous commented on GitHub (Dec 22, 2025):

To have multiple skip ranges with redumper, you need to have colon separated ranges, i.e. --skip=5000-5100:6000-6100
Two sets of --skip is invalid.

@Deterous commented on GitHub (Dec 22, 2025): To have multiple skip ranges with redumper, you need to have colon separated ranges, i.e. `--skip=5000-5100:6000-6100` Two sets of --skip is invalid.

claunia commented 2026-01-29 16:23:53 +00:00

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@agowa commented on GitHub (Jan 13, 2026):

Two sets of --skip is invalid.

@Deterous ehm, and why does it work when I invoke it that way from a CMD without MPF then???

@agowa commented on GitHub (Jan 13, 2026): > Two sets of --skip is invalid. @Deterous ehm, and why does it work when I invoke it that way from a CMD without MPF then???

claunia commented 2026-01-29 16:23:53 +00:00

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@Deterous commented on GitHub (Jan 13, 2026):

MPF is saving you here. Redumper will run just fine with two sets of --skip, but it won't actually do both skips

@Deterous commented on GitHub (Jan 13, 2026): MPF is saving you here. Redumper will run just fine with two sets of --skip, but it won't actually do both skips

claunia referenced this issue 2026-01-29 16:26:03 +00:00

[PR #882] [MERGED] redumper multisession .cache #1208

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Reference: SabreTools/MPF#882