122 lines
3.7 KiB
Bash
Executable file
122 lines
3.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# MOTDfetch is a modular and dynamic MOTD replacement
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# and a very nice command line information tool for Debian/Ubuntu systems.
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#
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# repository: https://git.tkapias.net/tkapias/MOTDfetch
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# author: Tomasz Kapias
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# email: tomasz@tkapias.net
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#
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# modules path: ./motdfetch.d/
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# config paths: $HOME/.config/motdfetch/motdfetch.conf
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# /etc/motdfetch/motdfetch.conf
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#
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# requirements (modules apart): sudo apt install coreutils bc
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# locale env
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unset LC_ALL
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export LC_MESSAGES=C
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# GLOBAL COLORS ######################################################
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c_txt="39"
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c_txt_emphase="35"
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c_txt_deco="97"
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c_txt_invert="30"
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c_bg="47"
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c_danger="31"
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c_warning="33"
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c_success="32"
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c_title="${c_bg};1;${c_txt_invert}m"
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# RUN OPTIONS #######################################################
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# MODTfetch directory path
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SCRIPT_DIR=$(dirname "$(realpath "$0")")
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Help()
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{
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echo -e "\e[1;${c_txt_emphase}mMOTDfetch\e[1;${c_txt}m is a modular and dynamic MOTD replacement and a very"
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echo -e "nice command line information tool for Debian/Ubuntu systems.\e[0m"
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echo
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echo "Syntax: bash $SCRIPT_DIR/00-motdfetch [-h] [-f] [-t ARG] [-l]"
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echo
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echo "options: -h Print this Help"
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echo " -f force execution under heavy load"
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echo " -t execute a standalone module with internal sample conf"
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echo " -l list available modules files names"
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}
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unset option_force_load
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# command options and arguments
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while getopts "hft:l" option; do
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case $option in
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h) Help
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exit ;;
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f) option_force_load=1;;
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t) # standalone module option
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if [[ -f "$SCRIPT_DIR/motdfetch.d/$OPTARG" ]]; then
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(. "$SCRIPT_DIR/motdfetch.d/$OPTARG")
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exit 0
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else
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echo -e "\e[1;${c_danger}mError\e[0m: Invalid module filename, check the -l option.\n"
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Help
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exit 1
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fi;;
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l) # List modules option
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for file in $SCRIPT_DIR/motdfetch.d/*
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do
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echo -e "$(basename $file) $(head -3 $file|tail -1)"
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done | column -t -s '#'
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exit 0;;
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\?) # Invalid option
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echo -e "\e[1;${c_danger}mError\e[0m: Invalid option"
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Help
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exit 1;;
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esac
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done
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# CONFIG LOADING ###################################################
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userconf="$HOME/.config/motdfetch/motdfetch.conf"
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sysconf="/etc/motdfetch/motdfetch.conf"
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if [[ -f "$userconf" ]];then
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. "$userconf"
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elif [[ -f "$sysconf" ]];then
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. "$sysconf"
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else
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echo -e "\e[1;${c_danger}mError\e[0m: no configuration available.\n"
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Help
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exit 1
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fi
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# EXECUTION #########################################################
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## load check
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cores=$(/usr/bin/grep -ioPc 'processor\t:' /proc/cpuinfo 2>/dev/null)
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if [[ "$cores" -eq "0" ]]; then
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cores=1
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fi
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threshold="${cores:-1}.5"
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echo -e "\n\e[${c_title} MOTDFETCH \e[0m\n"
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if [[ $(echo "`cut -f1 -d ' ' /proc/loadavg` < $threshold" | /usr/bin/bc) -eq 1 || $option_force_load -eq 1 ]]; then
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### output modules
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for file in $SCRIPT_DIR/motdfetch.d/*
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do
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(. "$file")
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done
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echo
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else
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### too much load for modules, run only 00 & 99 + msg
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module_header_disable=0
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(. $SCRIPT_DIR/motdfetch.d/00-*)
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module_userslog_disable=0
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(. $SCRIPT_DIR/motdfetch.d/99-*)
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echo -e "\n\e[${c_title} WE SKIPPED SOME MODULES \e[0m\n"
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echo -e " MOTDfetch skipped some modules because of\n this \e[1;${c_danger}msystem load\e[0m being higher than \e[1;${c_danger}m$threshold\e[0;${c_warning}m.\e[0m\n"
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echo -e " \e[1;${c_txt}mBAD ADVICE\e[0m: you can force execution with the option [-f]:\n # bash $SCRIPT_DIR/00-motdfetch -f\n"
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fi
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