I want the xar command to support a --dump-header operation for inspecting the fixed binary header of an…

I want the xar command to support a --dump-header operation for inspecting the fixed binary header of an…: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). I want the xar command to support a --dump-header operation for inspecting the fixed binary header of an archive without…

The task

I want the xar command to support a --dump-header operation for inspecting the fixed binary header of an archive without unpacking the archive. The invocation is xar --dump-header -f archive.xar, and on a readable archive it should exit 0 and print the header summary to stdout…

Part of XiaomiMiMo/MiMo-V2.6-RL-oss.