1 files changed, 129 insertions, 0 deletions
diff --git a/moz-normalize-mozconfig b/moz-normalize-mozconfig
index e69de29..62cce3f 100644..100755
--- a/moz-normalize-mozconfig
+++ b/moz-normalize-mozconfig
@@ -0,0 +1,129 @@
+#!/bin/bash
+
+tempdir="$(mktemp -d --tmpdir ${0##*/}.XXXXXXXXXXX)"
+
+urlencode() {
+	perl -MURI::Escape -e 'print uri_escape($ARGV[0]);' "$1"
+}
+
+# outputs in the format
+# class-id:line
+classify-lines() {
+	while read line; do
+		_line="$(printf '%s' "$line"|sed -r 's/^#(\S)/\1/')"
+		class='other'
+		case "$_line" in
+			ac_add_options\ --enable-application=*) class=setapp;;
+			.\ *mozconfig) class=setapp;;
+
+			*optimiz*) class=vendor;;
+
+			ac_add_options\ --*-dirs) class=vendor;;
+			ac_add_options\ --*-home=*) class=vendor;;
+			ac_add_options\ --libdir=*) class=vendor;;
+			ac_add_options\ --prefix=*) class=vendor;;
+			*OFFICIAL*) class=vendor;;
+
+			ac_add_options\ --with-*=*) class=appsetting;;
+			*MOZ_PHOENIX*) class=appsetting;;
+
+			ac_add_options\ --*-system-*) class=system;;
+			ac_add_options\ --with-pthreads) class=system;;
+
+			ac_add_options\ --build=*) class=platform;;
+			ac_add_options\ --host=*) class=platform;;
+			*SHORT_LIBNAME*) class=platform;;
+			
+			ac_add_options\ --*=*) class=other;;
+			ac_add_options\ --enable-toolkit-*) class=other;;
+
+			ac_add_options\ --enable-*) class=feature;;
+			ac_add_options\ --disable-*) class=feature;;
+			ac_add_options\ --with-*) class=feature;;
+
+			'# '*)
+				class=comment
+				echo "$line" >> "$tempdir/comments"
+				;;
+		esac
+		if [[ $class != comment ]]; then
+			ci="$tempdir/comments"
+			co="$tempdir/comments-$(urlencode "$line")"
+			[[ -f $ci ]] && mv "$ci" "$co"
+
+			class_id=''
+			case "$class" in
+				setapp)     class_id=0;;
+				system)     class_id=1;;
+				feature)    class_id=2;;
+				vendor)     class_id=3;;
+				platform)   class_id=4;;
+				appsetting) class_id=5;;
+				other)      class_id=6;;
+				*) libremessages error "INVALID CLASS: $class"; exit 1;;
+			esac
+			printf '%s:%s\n' "$class_id" "$line"
+		fi
+	done
+}
+
+format-classes() (
+	echo 0 > "$tempdir/prev_id"
+	IFS=:
+	while read class_id line; do
+		prev_id=$(cat "$tempdir/prev_id")
+		if [[ "$class_id" != "$prev_id" ]]; then
+			echo ''
+			case "$class_id" in
+				0) echo '# Set the application';;
+				1) echo '# System libraries';;
+				2) echo '# Features';;
+				3) echo '# Vendor settings';;
+				4) echo '# Platform settings';;
+				5) echo '# Application settings';;
+				6) echo '# Other';;
+			esac
+		fi
+		printf '%s\n' "$line"
+		echo "$class_id" > "$tempdir/prev_id"
+	done
+	echo ''
+	echo '# Build-generated'
+)
+
+add-comments() {
+	while read line; do
+		file="$tempdir/comments-$(urlencode "$line")"
+		if [[ -f $file ]]; then
+			cat "$file"
+		fi
+		echo "$line"
+	done
+	file="$tempdir/comments"
+	if [[ -f $file ]]; then
+		cat "$file"
+	fi
+}
+
+hack() {
+	sed -r \
+		-e '/^\s*$/d' \
+		-e '/#\s*(System libraries|Features|Optimization|Build-generated)/d' \
+		-e '/#\s*(Icecat|IceWeasel)/d' \
+		-e '/#\s*(ConnochaetOS|Parabola)/d' \
+		-e 's/# (ac_add_options)/#\1/'
+}
+
+main() {
+	cat \
+		| hack \
+		| classify-lines "$file" \
+		| sort  \
+		| format-classes \
+		| add-comments \
+
+	# above line intentionally left blank
+	rm -rf "$tempdir"
+}
+
+main "$@"