1 files changed, 132 insertions, 0 deletions
diff --git a/src/spdk/dpdk/devtools/check-maintainers.sh b/src/spdk/dpdk/devtools/check-maintainers.sh
new file mode 100755
index 000000000..85a300f0a
--- /dev/null
+++ b/src/spdk/dpdk/devtools/check-maintainers.sh
@@ -0,0 +1,132 @@
+#! /bin/sh
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2015 6WIND S.A.
+
+# Do some basic checks in MAINTAINERS file
+
+cd $(dirname $0)/..
+
+# speed up by ignoring Unicode details
+export LC_ALL=C
+
+# Get files matching paths with wildcards and / meaning recursing
+files () # <path> [<path> ...]
+{
+	if [ -z "$1" ] ; then
+		return
+	fi
+	if [ -d .git ] ; then
+		git ls-files "$1"
+	else
+		find "$1" -type f |
+		sed 's,^\./,,'
+	fi |
+	# if not ended by /
+	if ! echo "$1" | grep -q '/[[:space:]]*$' ; then
+		# filter out deeper directories
+		sed "/\(\/[^/]*\)\{$(($(echo "$1" | grep -o / | wc -l) + 1))\}/d"
+	else
+		cat
+	fi
+	# next path
+	shift
+	files "$@"
+}
+
+# Get all files matching F: and X: fields
+parse_fx () # <index file>
+{
+	IFS='
+'
+	# parse each line excepted underlining
+	for line in $( (sed '/^-\+$/d' $1 ; echo) | sed 's,^$,§,') ; do
+		if echo "$line" | grep -q '^§$' ; then
+			# empty line delimit end of section
+			whitelist=$(files $flines)
+			blacklist=$(files $xlines)
+			match=$(aminusb "$whitelist" "$blacklist")
+			if [ -n "$whitelist" ] ; then
+				printf "# $title "
+				maintainers=$(echo "$maintainers" | sed -r 's,.*<(.*)>.*,\1,')
+				maintainers=$(printf "$maintainers" | sed -e 's,^,<,' -e 's,$,>,')
+				echo $maintainers
+			fi
+			if [ -n "$match" ] ; then
+				echo "$match"
+			fi
+			# flush section
+			unset maintainers
+			unset flines
+			unset xlines
+		elif echo "$line" | grep -q '^[A-Z]: ' ; then
+			# maintainer
+			maintainers=$(add_line_to_if "$line" "$maintainers" 'M: ')
+			# file matching pattern
+			flines=$(add_line_to_if "$line" "$flines" 'F: ')
+			# file exclusion pattern
+			xlines=$(add_line_to_if "$line" "$xlines" 'X: ')
+		else # assume it is a title
+			title="$line"
+		fi
+	done
+}
+
+# Check patterns in F: and X:
+check_fx () # <index file>
+{
+	IFS='
+'
+	for line in $(sed -n 's,^[FX]: ,,p' $1 | tr '*' '#') ; do
+		line=$(printf "$line" | tr '#' '*')
+		match=$(files "$line")
+		if [ -z "$match" ] ; then
+			echo "$line"
+		fi
+	done
+}
+
+# Add a line to a set of lines if it begins with right pattern
+add_line_to_if () # <new line> <lines> <head pattern>
+{
+	(
+		echo "$2"
+		echo "$1" | sed -rn "s,^$3(.*),\1,p"
+	) |
+	sed '/^$/d'
+}
+
+# Subtract two sets of lines
+aminusb () # <lines a> <lines b>
+{
+	printf "$1\n$2\n$2" | sort | uniq -u | sed '/^$/d'
+}
+
+printf 'sections: '
+parsed=$(parse_fx MAINTAINERS)
+echo "$parsed" | grep -c '^#'
+printf 'with maintainer: '
+echo "$parsed" | grep -c '^#.*@'
+printf 'maintainers: '
+grep '^M:.*<' MAINTAINERS | sort -u | wc -l
+
+echo
+echo '##########'
+echo '# orphan areas'
+echo '##########'
+echo "$parsed" | sed -rn 's,^#([^@]*)$,\1,p' | uniq
+
+echo
+echo '##########'
+echo '# files not listed'
+echo '##########'
+all=$(files ./)
+listed=$(echo "$parsed" | sed '/^#/d' | sort -u)
+aminusb "$all" "$listed"
+
+echo
+echo '##########'
+echo '# wrong patterns'
+echo '##########'
+check_fx MAINTAINERS
+
+# TODO: check overlaps