system-info

Small CLI that prints a JSON snapshot of this machine for troubleshooting and context.

Usage

cargo run -p system-info
cargo run -p system-info -- --pretty
cargo run -p system-info -- --pretty --indent=2

The output is a single JSON object to stdout. Some fields are optional and will be null or empty strings when the underlying command cannot run or returns no data.

Output structure (top-level)

{
  "uname": { ... },
  "user": { ... },
  "env": { ... },
  "dmi": { ... },
  "xdg": { ... },
  "cpu": { ... },
  "proc": { ... },
  "mkinitcpio": { ... },
  "x11": { ... },
  "pacman": { ... },
  "lsblk": [ ... ],
  "lspci": [ ... ],
  "lsmod": [ ... ]
}

Notes:

• lsmod is intentionally last because it is the largest section.
• x11 subfields can be missing if no X display is available.

Section details

uname

• kernel_release, machine

user

• username, uid, gid, home_directory, login_shell

env

• Common environment variables: user, logname, home, shell, path, lang, lc_all, lc_ctype, term

dmi

• BIOS and hardware identifiers from /sys/class/dmi/id/*

xdg

• XDG environment variables such as XDG_CACHE_HOME, XDG_RUNTIME_DIR, XDG_SESSION_TYPE, etc.

cpu

• Selected lscpu fields (architecture, model, cores, cache, virtualization, etc.)

proc

• cmdline, version
• meminfo.mem_total from /proc/meminfo

mkinitcpio

• modules, hooks from /etc/mkinitcpio.conf

x11

• xinput.devices: parsed xinput list
• xrandr.monitors: parsed xrandr --listmonitors
• xrdb.resources: line list from xrdb -query
• xdpyinfo.dimensions, xdpyinfo.resolution

pacman

• explicit: pacman -Qe output lines

lsblk

• One entry per lsblk --json --list row with filesystem metadata.
• Fields are stored as strings (including numbers) for simplicity.

lspci

• One entry per lspci -nnk device with parsed IDs, subsystem info, and kernel modules.

lsmod

• One entry per lsmod line: module, size, used_by_count, used_by