add test and checkstyle support

All tests are in "tests" directory.
To run tests use:
  make test
For verbose output use:
  export V=2;make test ARGS="-V"
Test log file is generated in:
  Testing/Temporary/LastTest.log

To run checkstyle for the current commit use:
  ./scripts/checkstyle.sh
To run full check on all files use:
  ./scripts/checkstyle.sh --full

Change-Id: Ic83b3dbd44d2a264d27935f4e65cf9e737cfc0a0
Signed-off-by: Michal Cmarada <mcmarada@cisco.com>

1 files changed, 151 insertions, 0 deletions

diff --git a/scripts/checkstyle.sh b/scripts/checkstyle.sh
new file mode 100755
index 0000000..b129e62
--- /dev/null
+++ b/scripts/checkstyle.sh
@@ -0,0 +1,151 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2019 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+dir=$( cd "$(dirname "${BASH_SOURCE}")" ; pwd -P )
+JVPP_DIR="$dir/../"
+EXIT_CODE=0
+FIX="0"
+FULL="0"
+CHECKSTYLED_FILES=""
+UNCHECKSTYLED_FILES=""
+
+# If the user provides --fix, then actually fix things
+# Note: this is meant for use outside of the CI Jobs, by users cleaning things up
+
+while true; do
+	case ${1} in
+		--fix)
+			FIX="1"
+			;;
+		--full)
+			FULL="1"
+			;;
+	esac
+	shift || break
+done
+
+if [[ "${FULL}" == "1" ]]; then
+	FILELIST=$(git ls-tree -r HEAD --name-only | grep -v checkstyle.sh)
+else
+	FILELIST=$(((git diff HEAD~1.. --name-only; git ls-files -m) | sort -u) | grep -v checkstyle.sh)
+fi
+
+# Check to make sure we have indent.  Exit if we don't with an error message, but
+# don't *fail*.
+command -v indent > /dev/null
+if [ $? != 0 ]; then
+    echo "Cound not find required command \"indent\".  Checkstyle aborted"
+    exit ${EXIT_CODE}
+fi
+indent --version
+
+# Check to make sure we have clang-format.  Exit if we don't with an error message, but
+# don't *fail*.
+HAVE_CLANG_FORMAT=0
+command -v clang-format > /dev/null
+if [ $? != 0 ]; then
+    echo "Could not find command \"clang-format\". Checking C++ files will cause abort"
+else
+    clang-format --version
+    x=$(echo "" | clang-format 2>&1)
+    if [[ "$x" == "" ]]; then
+        HAVE_CLANG_FORMAT=1
+    else
+	echo "Output produced while formatting empty file (expected empty string):"
+	echo "$x"
+        echo "Could not find working \"clang-format\". Checking C++ files will cause abort"
+    fi
+fi
+
+cd ${JVPP_DIR}
+git status
+for i in ${FILELIST}; do
+    if [ -f ${i} ] && [ ${i} != "build-root/scripts/checkstyle.sh" ] && [ ${i} != "extras/emacs/fix-coding-style.el" ]; then
+        grep -q "fd.io coding-style-patch-verification: ON" ${i}
+        if [ $? == 0 ]; then
+            EXTENSION=`basename ${i} | sed 's/^\w\+.//'`
+            case ${EXTENSION} in
+                hpp|cpp|cc|hh)
+                    CMD="clang-format"
+                    if [ ${HAVE_CLANG_FORMAT} == 0 ]; then
+                            echo "C++ file detected. Abort. (missing clang-format)"
+                            exit ${EXIT_CODE}
+                    fi
+                    ;;
+                *)
+                    CMD="indent"
+                    ;;
+            esac
+            CHECKSTYLED_FILES="${CHECKSTYLED_FILES} ${i}"
+            if [ ${FIX} == 0 ]; then
+                if [ "${CMD}" == "clang-format" ]
+                then
+                    clang-format ${i} > ${i}.out2
+                else
+                    indent ${i} -o ${i}.out1 > /dev/null 2>&1
+                    indent ${i}.out1 -o ${i}.out2 > /dev/null 2>&1
+                fi
+                # Remove trailing whitespace
+                sed -i -e 's/[[:space:]]*$//' ${i}.out2
+                diff -q ${i} ${i}.out2
+            else
+                if [ "${CMD}" == "clang-format" ]; then
+                    clang-format -i ${i} > /dev/null 2>&1
+                else
+                    indent ${i}
+                    indent ${i}
+                fi
+                # Remove trailing whitespace
+                sed -i -e 's/[[:space:]]*$//' ${i}
+            fi
+            if [ $? != 0 ]; then
+                EXIT_CODE=1
+                echo
+                echo "Checkstyle failed for ${i}."
+                if [ "${CMD}" == "clang-format" ]; then
+                    echo "Run clang-format as shown to fix the problem:"
+                    echo "clang-format -i ${JVPP_DIR}${i}"
+                else
+                    echo "Run indent (twice!) as shown to fix the problem:"
+                    echo "indent ${JVPP_DIR}${i}"
+                    echo "indent ${JVPP_DIR}${i}"
+                fi
+            fi
+            if [ -f ${i}.out1 ]; then
+                rm ${i}.out1
+            fi
+            if [ -f ${i}.out2 ]; then
+                rm ${i}.out2
+            fi
+        else
+            UNCHECKSTYLED_FILES="${UNCHECKSTYLED_FILES} ${i}"
+        fi
+    else
+        UNCHECKSTYLED_FILES="${UNCHECKSTYLED_FILES} ${i}"
+    fi
+done
+
+if [ ${EXIT_CODE} == 0 ]; then
+    echo "*******************************************************************"
+    echo "* JVPP CHECKSTYLE SUCCESSFULLY COMPLETED"
+    echo "*******************************************************************"
+else
+    echo "*******************************************************************"
+    echo "* JVPP CHECKSTYLE FAILED"
+    echo "* CONSULT FAILURE LOG ABOVE"
+    echo "* NOTE: Running './scripts/checkstyle.sh --fix' *MAY* fix the issue"
+    echo "*******************************************************************"
+fi
+exit ${EXIT_CODE}