From 67ae256949aec4520b594e8707208571a0ce7d03 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Tue, 12 Feb 2019 14:37:19 -0500
Subject: slic3r-gpp: Rewrite

---
diff --git a/bin/slic3r-gpp b/bin/slic3r-gpp
new file mode 100755
index 0000000..0c4b7ff
--- /dev/null
+++ b/bin/slic3r-gpp
@@ -0,0 +1,100 @@
+#!/bin/sh
+
+set -eu
+
+SLIC3R_CONFIG_BASE="${HOME}/.Slic3r"
+TEMPERATURES='retraction wiping probing removal_bed'
+
+warn()
+{
+	local fmt="${1}"
+	shift 1
+
+	printf "Warning: ${fmt}\n" "${@}"
+	return 0
+}
+
+preprocess()
+{
+	local printer="${1}"
+	local gcode="${2}"
+	local filament="${3}"
+	shift 3
+	local ini=
+	local temp=
+	local temp_val=
+	local script=
+	local gcode_pp=
+
+	# Find and back up printer/filament configuration
+	ini="${SLIC3R_CONFIG_BASE}/printer/${printer}, ${filament}.ini"
+	if ! cp "${ini}" "${ini}~" 2>/dev/null; then
+		warn 'Missing configuration for printer "%s" and filament "%s"'\
+			"${printer}" "${filament}"
+		return 0
+	fi
+
+	# Load and validate filament temperature settings
+	for temp in ${TEMPERATURES}; do
+		eval "local ${temp}_temperature="
+	done
+	. "${SLIC3R_CONFIG_BASE}/filament/${filament}.rc"
+	for temp in ${TEMPERATURES}; do
+		temp_val="$(eval "printf '%s' \"\${${temp}_temperature}\"")"
+		case "${temp_val}" in
+			'')
+				eval "${temp}_temperature=0"
+				;;
+			*[!0-9]*)
+				warn 'Invalid "%s" value "%s" of filament "%s"'\
+					"${temp}_temperature" "${temp_val}" \
+					"${filament}"
+				return 0
+				;;
+		esac
+	done
+
+	# Preprocess G-code and insert into printer/filament configuration
+	script='1h; 1!H; ${ g; s/\n/\\n/g; '
+	for temp in ${TEMPERATURES}; do
+		temp="${temp}_temperature"
+		eval "script=\"\${script}s/<\${temp}>/\${${temp}}/g; \""
+	done
+	script="${script}"'s|[\/&]|\\&|g; p; };'
+	gcode_pp="${SLIC3R_CONFIG_BASE}/printer/${printer} - ${gcode}.gcode"
+	gcode_pp="$(sed -n "${script}" 0<"${gcode_pp}")"
+	sed "s/^\\(${gcode}_gcode *= *\\).*\$/\\1${gcode_pp}/;" \
+		"${ini}~" 1>"${ini}"
+
+	return 0
+}
+
+preprocess_all()
+{
+	local gcode=
+	local printer=
+	local rc=
+	local filament=
+
+	for gcode in "${SLIC3R_CONFIG_BASE}/printer/"*' - '*'.gcode'; do
+		gcode="${gcode##*/}"
+		printer="${gcode% - *.gcode}"
+		gcode="${gcode##${printer} - }"
+		gcode="${gcode%.gcode}"
+		for rc in "${SLIC3R_CONFIG_BASE}/filament/"*'.rc'; do
+			filament="${rc##*/}"
+			filament="${filament%.rc}"
+			preprocess "${printer}" "${gcode}" "${filament}"
+		done
+	done
+
+	return 0
+}
+
+main()
+{
+	preprocess_all
+	return 0
+}
+
+main "${@}"
--
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