bash_logging.config

#!/bin/bash

#This is a list of functions used for creating and updating logs for bash scripts.

#This function creates a log at a specific directory
function logCreate {
   configLogPath="${1}"
   timestamp=$(date "+%Y-%m-%d - %H.%M.%S")
   touch "${configLogPath}"
   echo "====== Script started at $timestamp ======" >> "${configLogPath}"
}

#This function opens the log
function logOpen {
   open "${configLogPath}"
}

function logNewLine {
   timestamp=$(date "+%Y-%m-%d - %H.%M.%S")
   echo -e "$timestamp - ${1}" >> "${configLogPath}"
}

function logCurrentLine {
   sed -i '' -e '$s/$/'"$1"'/' "${configLogPath}"     #this was a doozy to write. the -i '' -e is required for MacOS for some reason
}


##This function logs the beginning and end of a command, and calculates the total time
#got the prtinf statement from here: https://stackoverflow.com/questions/46471979/logging-inside-a-bash-script-file
#got the seconds thing from https://unix.stackexchange.com/questions/271406/how-to-log-command-start-time-and-command-end-time-in-txt-file-using-cygwin
function logLog {
	SECONDS=0 &&
	echo -e "$(date "+%Y-%m-%d - %H.%M.%S") ******** Command Started \n $(printf ' %q' "$@")" >> "${configLogPath}" &&
	#print timestamp and command to log
	"$@" &&
	#runs the command
	echo "$(date "+%Y-%m-%d - %H.%M.%S") ******** Comand Completed" >> "${configLogPath}" &&
	#prints timestamp once the command has exited
	duration=$SECONDS
	echo " Total Execution Time: $(($duration / 60)) m $(($duration % 60)) s" >> "${configLogPath}"
}

#When this function is placed in a script, the stdout and the stderr will be saved to the log (but not printed to console)
function logOut {
	exec 3>&1 4>&2
	trap 'exec 2>&4 1>&3' 0 1 2 3
	exec 1>>"${configLogPath}" 2>&1
   #this is lifted directly from https://serverfault.com/questions/103501/how-can-i-fully-log-all-bash-scripts-actions
}