tools/shmin.sh: Remove

It screws up handling backslash-escaped characters in src/ui/tui.sh;
fails to parse src/dist/libiquity.sh (due to an EOF while parsing a
double-quoted string); and doesn't know how to handle parameter
expansions, command substitutions, here-documents, etc.  It needs to be
rewritten into a proper parser.

But, if firman gets compressed (e.g. as part of an initramfs) anyway,
minifying it first only saves less than 2 KiB.

1 files changed, 0 insertions, 292 deletions

diff --git a/tools/shmin.sh b/tools/shmin.sh
deleted file mode 100755
index d4386c6..0000000
--- a/tools/shmin.sh
+++ /dev/null
@@ -1,292 +0,0 @@
-#!/bin/sh
-#
-# Shell command language minifier
-#
-# Copyright (C) 2015  Patrick "P. J." McDermott
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-set -u
-
-VERSION='0.1.0'
-HT='	'
-LF='
-'
-
-c=
-output=''
-
-die()
-{
-	local fmt="${1}"
-	shift 1
-
-	printf "shmin: ${fmt}\n" "${@}" >&2
-	exit 2
-}
-
-fgetc()
-{
-	# Damn command substitutions eat trailing whitespace.  Even if
-	# whitespace is the /only/ thing printed and exactly what we want from
-	# the command.
-	c="$(dd bs=1 count=1 <&3 2>/dev/null; printf '.')"
-	c="${c%.}"
-}
-
-parse()
-{
-	local buffer=''
-	local escaped=false
-
-	# Check for magic number or other first-line comment.
-	fgetc
-	if [ "x${c}" = 'x#' ]; then
-		# Comment
-		fgetc
-		if [ "x${c}" = 'x!' ]; then
-			# Magic number
-			buffer="${buffer}#!"
-			while :; do
-				fgetc
-				buffer="${buffer}${c}"
-				if [ "x${c}" = "x${LF}" ]; then
-					break
-				fi
-			done
-		else
-			while :; do
-				if [ "x${c}" = "x${LF}" ]; then
-					break
-				fi
-				fgetc
-			done
-		fi
-	fi
-
-	# Strip leading whitespace on the first line.
-	while :; do
-		case "${c}" in
-			' ' | "${HT}" | "${LF}")
-				;;
-			*)
-				break
-				;;
-		esac
-		fgetc
-	done
-
-	# Parse the rest of the file.
-	# Like any good parser, this is some very ugly and fragile code.
-	# Whitespace code must come before comment code must come before newline
-	# code must come before everything else.
-	while :; do
-		if [ "x${c}" = 'x' ]; then
-			break
-		fi
-		if [ "x${c}" = 'x ' ] || [ "x${c}" = "x${HT}" ]; then
-			# Whitespace
-			while :; do
-				fgetc
-				case "${c}" in
-					' ' | "${HT}")
-						;;
-					"${LF}" | '#')
-						# Eat trailing whitespace.
-						break
-						;;
-					'') return 1;;
-					*)
-						# Condense whitespace.
-						buffer="${buffer} "
-						break
-						;;
-				esac
-			done
-		fi
-		if [ "x${c}" = 'x#' ]; then
-			# Comment
-			while :; do
-				fgetc
-				if [ "x${c}" = "x${LF}" ]; then
-					break
-				fi
-				[ "x${c}" = 'x' ] && return 1
-			done
-		fi
-		if [ "x${c}" = "x${LF}" ]; then
-			# Strip empty lines and leading whitespace.
-			while :; do
-				fgetc
-				case "${c}" in
-					' ' | "${HT}" | "${LF}")
-						;;
-					*)
-						buffer="${buffer}${LF}"
-						break
-						;;
-				esac
-			done
-		fi
-		if [ "x${c}" = 'x\' ]; then
-			# Backslash
-			buffer="${buffer}${c}"
-			fgetc
-			buffer="${buffer}${c}"
-			[ "x${c}" = 'x' ] && return 1
-			continue
-		fi
-		if [ "x${c}" = "x'" ]; then
-			# Single quotes
-			buffer="${buffer}${c}"
-			while :; do
-				fgetc
-				buffer="${buffer}${c}"
-				if [ "x${c}" = "x'" ]; then
-					break
-				fi
-				[ "x${c}" = 'x' ] && return 1
-			done
-			fgetc
-			continue
-		fi
-		if [ "x${c}" = 'x"' ]; then
-			# Double quotes
-			buffer="${buffer}${c}"
-			while :; do
-				fgetc
-				buffer="${buffer}${c}"
-				if ${escaped}; then
-					escaped=false
-					continue
-				fi
-				if [ "x${c}" = 'x\' ]; then
-					escaped=true
-					continue
-				fi
-				if [ "x${c}" = 'x"' ]; then
-					break
-				fi
-				[ "x${c}" = 'x' ] && return 1
-			done
-			fgetc
-			continue
-		fi
-		buffer="${buffer}${c}"
-		fgetc
-	done
-
-	printf '%s' "${buffer}"
-}
-
-minify()
-{
-	local input="${1}"
-	local buffer=''
-
-	# Open input file.
-	if ! exec 3<"${input}"; then
-		die 'Cannot open file "%s"' "${input}"
-	fi
-
-	# Parse input.
-	if ! buffer="$(parse)"; then
-		die 'Syntax error in input'
-		exec 3<&-
-	fi
-
-	# We made it.  Now close input file.
-	if ! exec 3<&-; then
-		die 'Cannot close file "%s"' "${input}"
-	fi
-
-	# Write the output.
-	if [ "x${output}" = 'x-' ]; then
-		printf '%s\n' "${buffer}"
-	else
-		if ! printf '%s\n' "${buffer}" >"${output}~"; then
-			die 'Cannot write file "%s"' "${output}~"
-		fi
-		if ! cat "${output}~" >"${output}"; then
-			die 'Cannot rename file to "%s"' "${output}"
-		fi
-		if ! rm "${output}~"; then
-			die 'Cannot remove file "%s"' "${output}~"
-		fi
-	fi
-}
-
-usage()
-{
-	printf 'Usage: %s [option ...] <file>\n' "${0}"
-}
-
-help()
-{
-	usage
-	cat <<EOF
-Options:
-  -h           Display this information
-  -V           Display minifier version information
-  -o <output>  Write the minified output to <output>, instead of replacing the
-               existing file
-EOF
-}
-
-version()
-{
-	cat <<EOF
-shmin ${VERSION}
-Copyright (C) 2015  Patrick "P. J." McDermott
-License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
-This is free software: you are free to change and redistribute it.
-There is NO WARRANTY, to the extent permitted by law.
-EOF
-}
-
-main()
-{
-	local input=
-
-	while getopts 'hVo:' opt; do
-		case "${opt}" in
-			'h')
-				help
-				exit
-				;;
-			'V')
-				version
-				exit
-				;;
-			'o')
-				output="${OPTARG}"
-				;;
-		esac
-	done
-	shift $(($OPTIND - 1))
-
-	if [ ${#} -ne 1 ]; then
-		usage >&2
-		exit 1
-	fi
-	input="${1}"
-
-	if [ "x${output}" = 'x' ]; then
-		output="${input}"
-	fi
-
-	minify "${input}"
-}
-
-main "${@}"