[dpdk-dev] [PATCH] devtools: add script to find duplicated includes

[Thomas Monjalon <thomas@monjalon.net>]

Based on Stephen's idea (originally implemented in a Perl script),
this is a shell script to find duplicated includes in a file.
It looks for all the .c and .h files of the git repository.

It is fast enough because automatically well parallelized.

Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 devtools/check-dup-includes.sh | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100755 devtools/check-dup-includes.sh

diff --git a/devtools/check-dup-includes.sh b/devtools/check-dup-includes.sh
new file mode 100755
index 000000000..ba9871255
--- /dev/null
+++ b/devtools/check-dup-includes.sh
@@ -0,0 +1,35 @@
+#! /bin/sh -e
+
+# Copyright 2017 Mellanox Technologies, Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#   * Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in
+#     the documentation and/or other materials provided with the
+#     distribution.
+#
+# 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 AUTHORS OR 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.
+
+# Check C files in the git repository for duplicated includes.
+
+cd $(dirname $(readlink -m $0))/..
+
+# speed up by ignoring Unicode details
+export LC_ALL=C
+
+for file in $(git ls-files '*.[ch]') ; do
+	sed -rn 's,^[[:space:]]*#include[[:space:]]*[<"](.*)[>"].*,\1,p' $file |
+	sort | uniq -d |
+	sed "s,^,$file: duplicated include: ,"
+done
-- 
2.13.2