annotate cmake/GenerateCppcheck.cmake @ 1015:268d91ee4be6

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author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 02 Sep 2014 15:28:53 +0200
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1 # - Generate a cppcheck documentation for a project.
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2 # The function GENERATE_CPPCHECK is provided to create a "cppcheck" target that
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3 # performs static code analysis using the cppcheck utility program.
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4 #
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5 # GENERATE_CPPCHECK(SOURCES <sources to check...>
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6 # [SUPPRESSION_FILE <file>]
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7 # [ENABLE_IDS <id...>]
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8 # [TARGET_NAME <name>]
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9 # [INCLUDES <dir...>])
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10 #
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11 # Generates a target "cppcheck" that executes cppcheck on the specified sources.
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12 # Sources may either be file names or directories containing files where all
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13 # C++ files will be parsed automatically. Use directories whenever possible
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14 # because there is a limitation in arguments to pass to the cppcheck binary.
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15 # SUPPRESSION_FILE may be give additionally to specify suppressions for#
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16 # cppcheck. The sources mentioned in the suppression file must be in the same
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17 # format like given for SOURCES. This means if you specified them relative to
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18 # CMAKE_CURRENT_SOURCE_DIR, then the same relative paths must be used in the
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19 # suppression file.
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20 # ENABLE_IDS allows to specify which additional cppcheck check ids to execute,
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21 # e.g. all or style. They are combined with AND.
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22 # With TARGET_NAME a different name for the generated check target can be
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23 # specified. This is useful if several calles to this function are made in one
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24 # CMake project, as otherwise the target names collide.
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25 # Additional include directories for the cppcheck program can be given with
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26 # INCLUDES.
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27 #
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28 # cppcheck will be executed with CMAKE_CURRENT_SOURCE_DIR as working directory.
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29 #
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30 # This function can always be called, even if no cppcheck was found. Then no
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31 # target is created.
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32 #
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33 # Copyright (C) 2011 by Johannes Wienke <jwienke at techfak dot uni-bielefeld dot de>
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34 #
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35 # This program is free software; you can redistribute it
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36 # and/or modify it under the terms of the GNU General
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37 # Public License as published by the Free Software Foundation;
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38 # either version 2, or (at your option)
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39 # any later version.
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40 #
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41 # This program is distributed in the hope that it will be useful,
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42 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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43 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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44 # GNU General Public License for more details.
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45 #
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46
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47 GET_FILENAME_COMPONENT(GENERATE_CPPCHECK_MODULE_DIR ${CMAKE_CURRENT_LIST_FILE} PATH)
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48
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49 # FIND_PACKAGE(Cppcheck)
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50 find_program(CPPCHECK_EXECUTABLE
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51 cppcheck
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52 )
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53
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54 if(CPPCHECK_EXECUTABLE)
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55 set(CPPCHECK_FOUND True)
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56 endif()
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57
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58 include(ParseArguments)
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59
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60 FUNCTION(GENERATE_CPPCHECK)
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61
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62 IF(CPPCHECK_FOUND)
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63
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64 PARSE_ARGUMENTS(ARG "SOURCES;SUPPRESSION_FILE;ENABLE_IDS;TARGET_NAME;INCLUDES" "" ${ARGN})
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65
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66 SET(TARGET_NAME "cppcheck")
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67 SET(TARGET_NAME_SUFFIX "")
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68 # parse target name
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69 LIST(LENGTH ARG_TARGET_NAME TARGET_NAME_LENGTH)
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70 IF(${TARGET_NAME_LENGTH} EQUAL 1)
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71 SET(TARGET_NAME ${ARG_TARGET_NAME})
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72 SET(TARGET_NAME_SUFFIX "-${ARG_TARGET_NAME}")
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73 ENDIF()
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74
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75 SET(CPPCHECK_CHECKFILE "${CMAKE_BINARY_DIR}/cppcheck-files${TARGET_NAME_SUFFIX}")
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76 SET(CPPCHECK_REPORT_FILE "${CMAKE_BINARY_DIR}/cppcheck-report${TARGET_NAME_SUFFIX}.xml")
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77 SET(CPPCHECK_WRAPPER_SCRIPT "${CMAKE_BINARY_DIR}/cppcheck${TARGET_NAME_SUFFIX}.cmake")
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78
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79 # write a list file containing all sources to check for the call to
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80 # cppcheck
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81 SET(SOURCE_ARGS "")
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82 FOREACH(SOURCE ${ARG_SOURCES})
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83 SET(SOURCE_ARGS "${SOURCE_ARGS} \"${SOURCE}\"")
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84 ENDFOREACH()
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85
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86 # prepare a cmake wrapper to write the stderr output of cppcheck to
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87 # the result file
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88
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89 # suppression argument
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90 LIST(LENGTH ARG_SUPPRESSION_FILE SUPPRESSION_FILE_LENGTH)
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91 IF(${SUPPRESSION_FILE_LENGTH} EQUAL 1)
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92 GET_FILENAME_COMPONENT(ABS "${ARG_SUPPRESSION_FILE}" ABSOLUTE)
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93 MESSAGE(STATUS "Using suppression file ${ABS}")
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94 SET(SUPPRESSION_ARGUMENT --suppressions)
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95 SET(SUPPRESSION_FILE "\"${ABS}\"")
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96 ENDIF()
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97
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98 # includes
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99 SET(INCLUDE_ARGUMENTS "")
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100 FOREACH(INCLUDE ${ARG_INCLUDES})
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101 SET(INCLUDE_ARGUMENTS "${INCLUDE_ARGUMENTS} \"-I${INCLUDE}\"")
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102 ENDFOREACH()
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103
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104 # enabled ids
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105 SET(ID_LIST "")
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106 FOREACH(ID ${ARG_ENABLE_IDS})
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107 SET(ID_LIST "${ID_LIST},${ID}")
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108 ENDFOREACH()
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109 IF(ID_LIST)
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110 STRING(LENGTH ${ID_LIST} LIST_LENGTH)
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111 MATH(EXPR FINAL_LIST_LENGTH "${LIST_LENGTH} - 1")
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112 STRING(SUBSTRING ${ID_LIST} 1 ${FINAL_LIST_LENGTH} FINAL_ID_LIST)
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113 SET(IDS_ARGUMENT "\"--enable=${FINAL_ID_LIST}\"")
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114 ELSE()
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115 SET(IDS_ARGUMENT "")
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116 ENDIF()
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117
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118 FILE(WRITE ${CPPCHECK_WRAPPER_SCRIPT}
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119 "
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120 EXECUTE_PROCESS(COMMAND \"${CPPCHECK_EXECUTABLE}\" ${INCLUDE_ARGUMENTS} ${SUPPRESSION_ARGUMENT} ${SUPPRESSION_FILE} ${IDS_ARGUMENT} --inline-suppr --xml ${SOURCE_ARGS}
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121 RESULT_VARIABLE CPPCHECK_EXIT_CODE
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122 ERROR_VARIABLE ERROR_OUT
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123 WORKING_DIRECTORY \"${CMAKE_CURRENT_SOURCE_DIR}\")
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124 IF(NOT CPPCHECK_EXIT_CODE EQUAL 0)
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125 MESSAGE(FATAL_ERROR \"Error executing cppcheck for target ${TARGET}, return code: \${CPPCHECK_EXIT_CODE}\")
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126 ENDIF()
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127 IF(ERROR_OUT)
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128 MESSAGE(\"Detected errors:\\n\${ERROR_OUT}\")
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129 ENDIF()
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130 FILE(WRITE \"${CPPCHECK_REPORT_FILE}\" \"\${ERROR_OUT}\")
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131 "
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132 )
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133
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134 ADD_CUSTOM_TARGET(${TARGET_NAME} ${CMAKE_COMMAND} -P "${CPPCHECK_WRAPPER_SCRIPT}"
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135 COMMENT "Generating cppcheck result ${TARGET_NAME}")
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136
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137 MESSAGE(STATUS "Generating cppcheck target with name ${TARGET_NAME}")
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138
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139 ENDIF()
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140
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141 ENDFUNCTION()

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