Integrate cppcheck.

1 files changed, 156 insertions, 0 deletions

diff --git a/cmake/FindCppCheck.cmake b/cmake/FindCppCheck.cmake
new file mode 100644
index 0000000..a379ace
--- /dev/null
+++ b/cmake/FindCppCheck.cmake
@@ -0,0 +1,156 @@
+# - Find cppcheck
+# This module looks for cppcheck.
+# This module defines the following variables:
+#
+#   CPPCHECK_FOUND      - Set to TRUE when cppcheck is found.
+#   CPPCHECK_EXECUTABLE - Path to the executable.
+#
+# and a convenience function for calling the utility:
+#
+#   GENERATE_CPPCHECK(SOURCES <sources to check...>
+#                    [SUPPRESSION_FILE <file>]
+#                    [ENABLE_IDS <id...>]
+#                    [TARGET_NAME <name>]
+#                    [INCLUDES <dir...>])
+#
+# This generates a "cppcheck" target that executes cppcheck on the specified
+# sources. Sources may be either file names or directories containing files
+# where all C/++ files will be parsed automatically. Use directories whenever
+# possible because there is a limitation in arguments to pass to the cppcheck
+# binary.
+#
+# SUPPRESSION_FILE may be given additionally to specify suppressions for
+# cppcheck. The sources mentioned in the suppression file must be in the same
+# format as given for SOURCES. This means if you specify them relative to
+# CMAKE_CURRENT_SOURCE_DIR, then the same relative paths must be used in the
+# suppression file.
+#
+# ENABLE_IDS allows to specify which additional cppcheck check ids to execute,
+# e.g. all or style.
+#
+# With TARGET_NAME a different name for the generated check target can be
+# specified. This is useful if several calls to this function are made in one
+# CMake project, as otherwise the target names would collide.
+#
+# Additional include directories for the cppcheck program can be given with
+# INCLUDES.
+#
+# cppcheck will be executed with CMAKE_CURRENT_SOURCE_DIR as working directory.
+#
+# This function can be called even if cppcheck wasn't found. In that case no
+# target is created.
+#
+#
+
+#=============================================================================
+# Copyright 2011 Johannes Wienke <jwienke at techfak dot uni-bielefeld dot de>
+# Copyright 2012 Přemysl Janouch <p.janouch at gmail dot com>
+# 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.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+# OF SUCH DAMAGE.
+#=============================================================================
+
+
+find_program (CPPCHECK_EXECUTABLE cppcheck)
+mark_as_advanced (CPPCHECK_EXECUTABLE)
+
+include (FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS (CppCheck DEFAULT_MSG CPPCHECK_EXECUTABLE)
+
+include (ProcessArguments)
+
+function (GENERATE_CPPCHECK)
+	if (NOT CPPCHECK_FOUND)
+		return ()
+	endif (NOT CPPCHECK_FOUND)
+
+	# Parse arguments given to this function
+	set (__names  SOURCES  SUPPRESION_FILE  ENABLE_IDS  TARGET_NAME  INCLUDES)
+	set (__need   YES      NO               NO          NO           NO)
+	set (__want   1        1                1           1            1)
+	set (__more   YES      NO               YES         NO           YES)
+	set (__skip   0        0                0           0            0)
+
+	set (__argv ${ARGV})
+	PROCESS_ARGUMENTS (__argv __names __need __want __more __skip "opt_")
+
+	# Get target name
+	set (target_name "cppcheck")
+	set (target_name_suffix "")
+
+	if (opt_target_name)
+		set (target_name ${opt_target_name_param})
+		set (target_suffix "-${target_name}")
+	endif (opt_target_name)
+
+	set (cppcheck_base "${PROJECT_BINARY_DIR}/cppcheck${target_suffix}")
+
+	set (cppcheck_report_file     "${cppcheck_base}-report.log")
+	set (cppcheck_wrapper_script  "${cppcheck_base}.cmake")
+
+	# Prepare a command line for cppcheck
+	set (source_args ${opt_sources_param})
+	set (options "--inline-suppr")
+
+	# Suppression argument
+	if (opt_suppression_file)
+		get_filename_component (abs "${opt_suppression_file_param}" ABSOLUTE)
+		set (options "${options} --suppressions \"${abs}\"")
+	endif (opt_suppression_file)
+
+	# Includes
+	foreach (include ${opt_includes_param})
+		set (options "${options} -I \"${include}\"")
+	endforeach (include)
+
+	# Enabled ids
+	if (opt_enable_ids)
+		set (id_list "")
+		foreach (id ${opt_enable_ids_param})
+			set (id_list "${id_list},${id}")
+		endforeach (id)
+
+		string (SUBSTRING ${id_list} 1 -1 id_list)
+		set (options "${options} \"--enable=${id_list}\"")
+	endif (opt_enable_ids)
+
+	# Create a wrapper script which redirects stderr of cppcheck to a file
+	file (WRITE ${cppcheck_wrapper_script} "
+		execute_process (
+			COMMAND \"${CPPCHECK_EXECUTABLE}\" ${options} ${source_args}
+			RESULT_VARIABLE exit_code
+			ERROR_VARIABLE error_out
+			WORKING_DIRECTORY \"${CMAKE_CURRENT_SOURCE_DIR}\")
+		if (exit_code)
+			message (FATAL_ERROR \"Error executing cppcheck\")
+		endif (exit_code)
+		if (error_out)
+			message (\"\\nDetected errors:\\n\${error_out}\")
+		endif (error_out)
+		file (WRITE \"${cppcheck_report_file}\" \"\${error_out}\")
+	")
+
+	add_custom_target (${target_name}
+		COMMAND ${CMAKE_COMMAND} -P "${cppcheck_wrapper_script}"
+		DEPENDS "${cppcheck_wrapper_script}"
+		COMMENT "Calling cppcheck static code analyzer" VERBATIM)
+endfunction (GENERATE_CPPCHECK)
+