gen_man_page

#!/usr/bin/env bash

readonly -a EXCLUDED_EXTENSIONS=(
	'.txt'
	'.md'
	'.png'
	'.jpeg'
	'.jpg'
	'.gz'
	'.tar'
)
show_help() {
	local -r ORIG_IFS="$IFS"
	IFS=","; extensions="${EXCLUDED_EXTENSIONS[*]}"; IFS="$ORIG_IFS"
	cat << __EOF__
Generates and compresses a man file in the local directory for the given command. Depends on help2man.

Usage:	$0 COMMAND [SECTION]
	or:	$0 --all
	or:	$0 --help
	or:	$0 --version

Options:
	--all: runs this command for all files in the current directory that don't start with a . and don't end with an excluded extension. These include ${extensions//,/', '}.
__EOF__
}
show_version() {
	cat << __EOF__
$0 1.2.0

Copyright (C) 2025 Justin Morris
__EOF__
}
if [[ "$1" == "--help" ]]; then
	show_help
	exit
elif [[ "$1" == "--version" ]]; then
	show_version
	exit
elif [[ "$1" == "--all" ]]; then
	((all=0, made=0, failed=0, skipped=0))
	ORIG_IFS="$IFS"
	IFS="|"; extensions="${EXCLUDED_EXTENSIONS[*]}"; IFS="$ORIG_IFS"
	echo -n "All: $all, Successful: $made, Failed: $failed, Skipped: $skipped"
	find . -maxdepth 1 -not -type d | grep -E -e "^\./\.|(($extensions)$)" -v - | while read -r line; do
		((all++))
		if eval "${line:2} --help" &>/dev/null && eval "${line:2} --version" &>/dev/null; then
			if help2man -N "${line:2}" | gzip - >| "./man/man1/${line:2}.1.gz"; then
				((made++))
			else
				((failed++))
			fi
		else
			((skipped++))
		fi
		echo -n $'\r'; tput el
		echo -n "All: $all, Successful: $made, Failed: $failed, Skipped: $skipped"
	done
	echo -n $'\n'
	exit
fi
help2man -N --section="${2:-1}" "$1" | gzip - >| "./man/man${2:-1}/$1.1.gz"