81 lines
1.8 KiB
Bash
Executable file
81 lines
1.8 KiB
Bash
Executable file
#!/bin/sh
|
|
# shellcheck source=/dev/null
|
|
#
|
|
# pfetch - Simple POSIX sh fetch script.
|
|
|
|
die() {
|
|
printf '\033[31;1merror\033[m: %s.\n' "$@" >&2
|
|
exit 1
|
|
}
|
|
|
|
log() {
|
|
printf '\033[3%s;1m%s\033[m%s%s\n' "$1" "$2" "$3" "${4:-unknown}"
|
|
}
|
|
|
|
get_os() {
|
|
case $kernel_name in
|
|
Linux|GNU*) os=linux ;;
|
|
|
|
*)
|
|
die "Unknown OS detected '$kernel_name'" \
|
|
"Open an issue on GitHub to add support for your OS"
|
|
;;
|
|
esac
|
|
}
|
|
|
|
get_distro() {
|
|
case $os in
|
|
linux)
|
|
. /etc/os-release && distro=$PRETTY_NAME
|
|
;;
|
|
esac
|
|
|
|
log 1 os " " "$distro"
|
|
}
|
|
|
|
get_kernel() {
|
|
log 1 kernel " " "$kernel_version"
|
|
}
|
|
|
|
get_uptime() {
|
|
# Uptime works by retrieving the data in total seconds and then
|
|
# converting that data into days, hours and minutes using simple
|
|
# math.
|
|
case $os in
|
|
linux)
|
|
IFS=. read -r s _ < /proc/uptime
|
|
;;
|
|
esac
|
|
|
|
# Convert the uptime from seconds into days, hours and minutes.
|
|
d=$((s / 60 / 60 / 24))
|
|
h=$((s / 60 / 60 % 24))
|
|
m=$((s / 60 % 60))
|
|
|
|
# Only append days, hours and minutes if they're non-zero.
|
|
[ "$d" = 0 ] || uptime="${uptime}${d}d "
|
|
[ "$h" = 0 ] || uptime="${uptime}${h}h "
|
|
[ "$m" = 0 ] || uptime="${uptime}${m}m "
|
|
|
|
log 1 uptime " " "${uptime:-0m}"
|
|
}
|
|
|
|
main() {
|
|
# Hide 'stderr' unless the first argument is '-v'. This saves
|
|
# polluting the script with '2>/dev/null'.
|
|
[ "$1" = -v ] || exec 2>/dev/null
|
|
|
|
# Store the output of 'uname' to avoid calling it multiple times
|
|
# throughout the script. 'read <<EOF' is the simplest way of reading
|
|
# a command into a list of variables.
|
|
read -r kernel_name kernel_version kernel_machine <<EOF
|
|
$(uname -srm)
|
|
EOF
|
|
|
|
get_os
|
|
get_distro
|
|
get_kernel
|
|
get_uptime
|
|
}
|
|
|
|
main "$@"
|