scripts.lib

#!/bin/bash
#[THREAD: SINGLE]
	thread_single() {
		cli_echo 104 " [STARTED] ${1} "
		if thread "${@:2}"; then
			cli_echo 102 " [SUCCESS] ${1} "
		else 
			ERROR=$?; ERRORS+="$ERROR"
			cli_echo 101 " [ERROR: ${ERROR}] ${1} "
		fi
		printf '\7'
	}
#[THREAD: MULTI]
	thread_multi() {
		process_file() {
			# Try to run thread
			if thread "${@}"; then
				# PIPE_ERRORS if empty
				: > "$PIPE_ERRORS" &
				cli_echo 102 " [SUCCESS] PROCESSING: \"${1}.${2}\" "
			else 
				ERROR=$?
				echo "$ERROR" > "$PIPE_ERRORS" &
				cli_echo 101 " [ERROR: ${ERROR}] PROCESSING: \"${1}.${2}\" "
			fi
			printf '\7';
		}
		THREADS_ACTIVE=0
		THREADS_MAX="$(nproc)"
		PIPE_ERRORS="/tmp/PIPE_ERRORS"
		rm -rf "$PIPE_ERRORS"
		mkfifo "$PIPE_ERRORS"
		# Create list with all files
		if [[ "${1}" ]]; then while IFS= read -r -d '' FILE; do
			FILES+=("${FILE}")
		done < <(find "$@" -type f -print0 2>/dev/null); fi
		# For each file: +1 thread, start job, if max thread > Wait then -1 thread
		for FILE in "${FILES[@]}"; do
			THREADS_ACTIVE=$((THREADS_ACTIVE + 1))
			# Try to run thread
			cd "$(dirname "$FILE")" || exit
			process_file "$(basename "${FILE%.*}")" "${FILE##*.}"  &
			if [ "$THREADS_ACTIVE" -ge "$THREADS_MAX" ]; then
				wait -n;  THREADS_ACTIVE=$((THREADS_ACTIVE - 1))
			fi 
		done
		# Wait for all jobs
		wait; sleep 1
		while IFS= read -r -t 2 LINE; do
			ERRORS+=("$LINE")
		done < "$PIPE_ERRORS"
	}
#[CLI: ECHO]
	cli_echo() {
		printf "\e[%s;30m%s\e[0m\n" "$1" "$2"
	}
#[TUI: MENU]
	tui_menu() {
		whiptail --noitem --title "[${SCRIPT_NAME}] ${1}" --menu "" 0 0 0 "${@:2}" 3>&1 1>&2 2>&3
	}
#[TUI: CHECKLIST]
	tui_checklist() {
		whiptail --separate-output --title "[${SCRIPT_NAME}] ${1}" --checklist "" 0 96 0 "${@:2}" 3>&1 1>&2 2>&3
	}
#[TUI: TEXT PROMPT]
	tui_textprompt() {
		whiptail --noitem --title "[${SCRIPT_NAME}] ${1}" --inputbox "${2}" 0 0 3>&1 1>&2 2>&3
	}
#[TUI: INFO]
	tui_info() {
		whiptail --title "[${SCRIPT_NAME}] ${SCRIPT_JOB}" --msgbox "${1}" 0 0 3>&1 1>&2 2>&3
	}
#[TUI: INFO RESULTS]
	tui_info_results() {
		if [[ "${ERRORS[*]}" ]]; then
			tui_info "Job completed with Errors:\n${ERRORS[*]}"
		else
			tui_info "Job completed successfully!"
		fi
		exit
	}
#[INIT]
	clear
	SCRIPT_PATH="$(pwd)"
	if ! source "${SCRIPT_PATH}/scripts.cfg"; then tui_info "\"script.cfg\" missing."; exit; fi