build.sh

#!/bin/sh

# Copyright 2015-2023 Rivoreo

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
# IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.


src_dir="${0%/*}"
if [ "$src_dir" != "$0" ] && [ "$src_dir" != . ] && [ "$src_dir" != "$PWD" ] && [ ! "$src_dir" -ef . ]; then
	echo "Error: You must run this program under the directory where it resides" 1>&2
	exit 1
fi
unset src_dir

#with_hexdump=
crypt_wrapper=crypt.hex.sh

for a in "$@"; do case "$a" in
	--with-hexdump)
		#with_hexdump=1
		crypt_wrapper=crypt.raw.sh
		;;
	--without-hexdump)
		#with_hexdump=
		crypt_wrapper=crypt.hex.sh
		;;
	--help|-h)
		printf 'Usage: %s [--with-hexdump]\n' "${0##*/}"
		exit 0
		;;
	--)
		break
		;;
	*)
		echo \?
		exit 255
		;;
esac done

set -e

blank=
first_blank=
IFS=
while read -r line; do case "$line" in
	"#!"*)
		continue
		;;
	"")
		echo
		[ -n "$blank" ] && break
		blank=1
		if [ -z "$first_blank" ]; then
			echo "# Encrypted history for bash(1)"
			echo "# Automatically assembled code for sourcing from bashrc(5)"
			first_blank=1
		fi
		;;
	"# "*)
		printf %s\\n "$line"
		blank=
		;;
esac done < "$0"
exec sed -E "/^[[:space:]]*#/d" xtea-ctr.sh "$crypt_wrapper" bashrc