From b1dcb10f25862d7d833d91518a007b618236ad64 Mon Sep 17 00:00:00 2001
From: Daniel Agar <daniel@agar.ca>
Date: Mon, 5 Jan 2015 23:16:30 -0500
Subject: add make check_format to check astyle code formatting

---
 .gitignore                |  2 ++
 Makefile                  |  4 ++++
 Tools/check_code_style.sh | 28 ++++++++++++++++++++++++++++
 Tools/fix_code_style.sh   |  1 +
 4 files changed, 35 insertions(+)
 create mode 100755 Tools/check_code_style.sh

diff --git a/.gitignore b/.gitignore
index 611325444..0e553fa36 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,3 +46,5 @@ Firmware.zip
 unittests/build
 *.generated.h
 .vagrant
+*.pretty
+
diff --git a/Makefile b/Makefile
index 7620099f9..201187e02 100644
--- a/Makefile
+++ b/Makefile
@@ -262,6 +262,10 @@ testbuild:
 tests:	generateuorbtopicheaders
 	$(Q) (mkdir -p $(PX4_BASE)/unittests/build && cd $(PX4_BASE)/unittests/build && cmake .. && $(MAKE) unittests)
 
+.PHONY: format check_format
+check_format:
+	$(Q) (./Tools/check_code_style.sh | sort -n)
+
 #
 # Cleanup targets.  'clean' should remove all built products and force
 # a complete re-compilation, 'distclean' should remove everything
diff --git a/Tools/check_code_style.sh b/Tools/check_code_style.sh
new file mode 100755
index 000000000..491fbb0ce
--- /dev/null
+++ b/Tools/check_code_style.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -eu
+failed=0
+for fn in $(find . -path './src/lib/uavcan' -prune -o \
+                   -path './NuttX' -prune -o \
+                   -path './Build' -prune -o \
+                   -path './mavlink' -prune -o \
+                   -path './unittests/gtest' -prune -o \
+                   -name '*.c' -o -name '*.cpp' -o -name '*.hpp' -o -name '*.h' -type f); do
+  if [ -f "$fn" ];
+  then
+    ./Tools/fix_code_style.sh --quiet < $fn > $fn.pretty
+    diffsize=$(diff -y --suppress-common-lines $fn $fn.pretty | wc -l)
+    rm -f $fn.pretty
+    if [ $diffsize -ne 0 ]; then
+      failed=1
+      echo $diffsize $fn
+    fi
+  fi
+done
+
+if [ $failed -eq 0 ]; then
+    echo "Format checks passed"
+    exit 0
+else
+    echo "Format checks failed; please run ./Tools/fix_code_style.sh on each file"
+    exit 1
+fi
diff --git a/Tools/fix_code_style.sh b/Tools/fix_code_style.sh
index 5995d428e..e73a5a8af 100755
--- a/Tools/fix_code_style.sh
+++ b/Tools/fix_code_style.sh
@@ -18,4 +18,5 @@ astyle \
     --exclude=EASTL		\
     --add-brackets		\
     --max-code-length=120	\
+    --preserve-date             \
     $*
-- 
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