#!/usr/bin/env bash

CRON_LOG_FILE="$XDG_DATA_HOME/cron/cron.log"

QTILE_LOG_FILE="$XDG_DATA_HOME/qtile/qtile.log"

_usage() {

echo "catlog [options] <file> [context]"

echo

echo "Options:"

echo " -f, --follow, f, follow Run 'tail -f' on the log file instead of 'cat'."

echo

echo "Context:"

echo "When --follow is specified"

echo " [N] The number of lines back from the end of the file to start printing from."

echo " Use 0 to start from the beginning of the file."

echo

echo "<file> may be a path or a 'known log file'"

echo "Known log files:"

echo " cron $XDG_DATA_HOME/cron/cron.log"

echo " qtile $XDG_DATA_HOME/qtile/qtile.log"

exit 0

}

catlog() {

local follow=0

local cmd=""

local log=""

local lines=""

case "$1" in

"-h" | "--help" | "h" | "help" ) _usage

esac

case "$1" in

"-f" | "f" | "follow" )

shift; follow=1

cmd+="tail -f "

;;

* ) cmd+="bat " ;;

esac

case "$1" in

"cron" )

shift

[[ $follow -eq 0 ]] && cmd+="--color never "

lines="${1:-50}"

log="$CRON_LOG_FILE"

;;

"qtile" )

shift

lines="${1:-100}"

log="$QTILE_LOG_FILE"

;;

* ) log="$1" ;;

esac

[[ $follow -eq 1 ]] && cmd+="--lines=$lines"

eval "$cmd" "$log"

}

catlog "$@"