Add Windows (Git Bash / MSYS2 / Cygwin) support for the system info block

[AntaresGG]

Running the bash greeting under Git for Windows (Git Bash) leaves most of the Space Vessel block empty and prints an error on every new shell.

Before

Welcome Aboard, Captain GK!

bash: uptime: command not found
Today is 2026.08.08, we are up and running for .

Space Vessel:
        OS: MINGW64_NT-10.0-26200 x86_64
        CPU:
        Memory:
        Net: IP Address: , Default Gateway:

After

Welcome Aboard, Captain GK!

Today is 2026.08.08, we are up and running for 6 days, 8 hours.

Space Vessel:
        OS: Windows 11 Enterprise 25H2 x86_64
        CPU: 12 processors, 6 cores, 12th Gen Intel(R) Core(TM) i5-12490F
        Memory: 64GB
        Net: IP Address: 10.0.0.9, Default Gateway: 10.0.0.1

Cause

_rkt_hw_info and _rkt_net_info branch on uname -s and only handle Darwin and Linux. Under MSYS-based bash that value is MINGW64_NT-10.0-26200 (or MSYS_NT-* / CYGWIN_NT-*), so neither branch runs and cpu_str, mem_str, ip and gw stay empty. Separately, Git Bash ships no uptime(1), so show_date_info writes an error to the terminal and leaves the uptime blank.

Changes

Three functions, one new MINGW*|MSYS*|CYGWIN* branch each:

• _rkt_hw_info — MSYS exposes Linux-format /proc/cpuinfo and /proc/meminfo, so the CPU and memory parsing is the same as the Linux branch. The OS string comes from reg query on HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion (a single call, three values). Note that ProductName still reads Windows 10 Enterprise on Windows 11, so it is corrected via CurrentBuild >= 22000.
• _rkt_net_info — parses the default-route row of route print -4 0.0.0.0, which yields the gateway and the local interface address in one shot. I picked route over ipconfig deliberately: that row is entirely numeric, so it is immune to the localized labels that break ipconfig parsing on non-English Windows (this machine is a zh-CN install). When several default routes exist, the lowest-metric one wins.
• show_date_info — falls back to /proc/uptime when uptime(1) is absent, formatted as 6 days, 8 hours to match the shape of the existing uptime output.

Notes

• The Darwin and Linux branches are untouched; the new code is additive.
• Every lookup degrades to the previous empty-string behaviour if the underlying tool is missing from PATH, so nothing can regress into an error message.
• Nothing here touches the PRNG, the palette generator, or the rendering path — cross-shell parity is unaffected.
• Only bash/starcommand.sh is changed. The zsh greeting has the same platform gap, but I have no MSYS zsh to verify against, so I left it alone. Happy to extend this to zsh/zsh_greeting.zsh or to add a README/CHANGELOG note if you'd like.

Testing

Verified on Windows 11 Enterprise 25H2 (build 26200), Git for Windows, bash 5.3.15, zh-CN system locale:

• bash -n bash/starcommand.sh passes.
• Fresh interactive shells render all six fields with no stderr output.
• Both the rocket_hw_cache.sh (24 h) and rocket_net_cache.sh (5 min) caches write and re-read correctly.
• star, star list, star color, and star explore still behave as before.

🤖 Generated with Claude Code

https://claude.ai/code/session_01XABWp1UM9qhnQn8PvQnyN3