Add some basic unit tests.

Introduced the Catch2 unit testing framework.

.travis.yml

@@ -9,7 +9,11 @@ matrix:
             - llvm-toolchain-xenial-7
           packages:
             - clang-7
+            - llvm-7
+            - lld-7
             - libc++-7-dev
+            - libc++abi-7-dev
+            - lcov
             - cmake
             - docbook2x
             - libxdamage-dev
@@ -204,6 +208,8 @@ matrix:
             - llvm-toolchain-xenial-6.0
           packages:
             - clang-6.0
+            - lld-6.0
+            - libstdc++6
             - cmake
             - docbook2x
             - libxdamage-dev
@@ -244,7 +250,7 @@ before_install:
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then eval "${MATRIX_EVAL}" ; fi
   - |
     if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
-      HOMEBREW_NO_AUTO_UPDATE=1 brew install freetype gettext lua imlib2 librsvg docbook2x ;
+      HOMEBREW_NO_AUTO_UPDATE=1 brew install freetype gettext lua imlib2 librsvg docbook2x lcov ;
     fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew link gettext --force ; fi
 before_script:
@@ -319,6 +325,8 @@ script:
     else
       make -j4 ;
     fi
+  - make test
+  - if [ "$CXX" = "clang++-7" ] ; then make test-conky-coverage-txt ; fi
   - cd ../build-no-x11
   - make -j4
   - cd ..

CMakeLists.txt

@@ -3,19 +3,18 @@
 #
 # Please see COPYING for details
 #
-# Copyright (c) 2005-2018 Brenden Matthews, et. al. (see AUTHORS)
+# Copyright (c) 2005-2018 Brenden Matthews, et. al. (see AUTHORS) All rights
-# All rights reserved.
+# reserved.
 #
-# This program is free software: you can redistribute it and/or modify
+# This program is free software: you can redistribute it and/or modify it under
-# it under the terms of the GNU General Public License as published by
+# the terms of the GNU General Public License as published by the Free Software
-# the Free Software Foundation, either version 3 of the License, or
+# Foundation, either version 3 of the License, or (at your option) any later
-# (at your option) any later version.
+# version.
 #
-# This program is distributed in the hope that it will be useful,
+# This program is distributed in the hope that it will be useful, but WITHOUT
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
-# GNU General Public License for more details.
+# details. You should have received a copy of the GNU General Public License
-# You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
@@ -42,10 +41,7 @@ include(ConkyCPackSetup)
 configure_file(${CMAKE_MODULE_PATH}/config.h.in ${CMAKE_BINARY_DIR}/config.h)
 configure_file(${CMAKE_MODULE_PATH}/build.h.in ${CMAKE_BINARY_DIR}/build.h)
 
-set(conky_sources
+set(conky_sources ${CMAKE_BINARY_DIR}/config.h ${CMAKE_BINARY_DIR}/build.h)
-  ${CMAKE_BINARY_DIR}/config.h
-  ${CMAKE_BINARY_DIR}/build.h
-)
 
 # Finally, add some code
 add_subdirectory(lua)
@@ -56,28 +52,46 @@ add_subdirectory(doc)
 add_subdirectory(3rdparty/toluapp)
 set(conky_libs ${conky_libs} toluapp_lib_static)
 
+if(BUILD_TESTS)
+  if(USING_CLANG_7)
+    message(STATUS "Detected clang-7, enabling test coverage reports")
+    # Enable coverage checks
+    include(CodeCoverage)
+    append_coverage_compiler_flags()
+  else()
+    message(STATUS "NOT enabling test coverage reports")
+  endif()
+  include(Catch)
+endif()
+
 add_subdirectory(src)
 
-IF(NOT DEFINED DOC_PATH)
+if(BUILD_TESTS)
+  add_subdirectory(tests)
+  enable_testing()
+endif()
+
+if(NOT DEFINED DOC_PATH)
   set(DOC_PATH "share/doc/${CPACK_PACKAGE_NAME}-${VERSION}")
-ENDIF(NOT DEFINED DOC_PATH)
+endif(NOT DEFINED DOC_PATH)
 set(DOC_FILES extras/convert.lua data/conky_no_x11.conf data/conky.conf)
 
 set(HTML_PATH "${DOC_PATH}/html")
-set(HTML_FILES doc/config_settings.html doc/docs.html doc/lua.html doc/variables.html)
+set(HTML_FILES
+    doc/config_settings.html
+    doc/docs.html
+    doc/lua.html
+    doc/variables.html)
 
 set(MAN_PATH "share/man/man1")
 set(MAN_FILES doc/conky.1)
 
-install(FILES ${DOC_FILES}
+install(FILES ${DOC_FILES} DESTINATION ${DOC_PATH})
-  DESTINATION ${DOC_PATH})
 
 if(MAINTAINER_MODE)
-  install(FILES ${HTML_FILES}
+  install(FILES ${HTML_FILES} DESTINATION ${HTML_PATH})
-    DESTINATION ${HTML_PATH})
 
-  install(FILES ${MAN_FILES}
+  install(FILES ${MAN_FILES} DESTINATION ${MAN_PATH})
-    DESTINATION ${MAN_PATH})
 endif(MAINTAINER_MODE)
 
 if(CHECK_CODE_QUALITY)
@@ -86,8 +100,7 @@ if(CHECK_CODE_QUALITY)
       clang-tidy
       clang-tidy-5.0
       clang-tidy-6.0
-    clang-tidy-7.0
+      clang-tidy-7.0)
-  )
   set(CLANG_TIDY_EXCLUDE_PATTERNS "build/" ${CMAKE_BINARY_DIR})
   find_package(ClangTidy)
 endif(CHECK_CODE_QUALITY)

README.md

@@ -1,6 +1,5 @@
-<p align="center"><img src="logo/logotype-horizontal-violet.png"></p>
+[![Build Status](https://travis-ci.org/brndnmtthws/conky.png)](https://travis-ci.org/brndnmtthws/conky) [![Quality Gate](https://sonarcloud.io/api/project_badges/measure?project=conky&metric=alert_status)](https://sonarcloud.io/dashboard/index/conky) [![Maintainability](https://sonarcloud.io/api/project_badges/measure?project=conky&metric=sqale_rating)](https://sonarcloud.io/dashboard/index/conky) [![Code Coverage](https://sonarcloud.io/api/project_badges/measure?project=conky&metric=coverage)](https://sonarcloud.io/dashboard/index/conky) [![Sonarcloud Bugs](https://sonarcloud.io/api/project_badges/measure?project=conky&metric=bugs)](https://sonarcloud.io/dashboard/index/conky)
-
+<p align="center"><img width="300" src="logo/logotype-horizontal-violet.png"></p>
-[![Build Status](https://travis-ci.org/brndnmtthws/conky.png)](https://travis-ci.org/brndnmtthws/conky) [![Quality Gate](https://sonarcloud.io/api/project_badges/measure?project=conky&metric=alert_status)](https://sonarcloud.io/dashboard/index/conky)
 
 **Conky** is a free, light-weight system monitor for X, that displays
 any kind of information on your desktop.

cmake/Catch.cmake

@@ -0,0 +1,175 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+Catch
+-----
+
+This module defines a function to help use the Catch test framework.
+
+The :command:`catch_discover_tests` discovers tests by asking the compiled test
+executable to enumerate its tests.  This does not require CMake to be re-run
+when tests change.  However, it may not work in a cross-compiling environment,
+and setting test properties is less convenient.
+
+This command is intended to replace use of :command:`add_test` to register
+tests, and will create a separate CTest test for each Catch test case.  Note
+that this is in some cases less efficient, as common set-up and tear-down logic
+cannot be shared by multiple test cases executing in the same instance.
+However, it provides more fine-grained pass/fail information to CTest, which is
+usually considered as more beneficial.  By default, the CTest test name is the
+same as the Catch name; see also ``TEST_PREFIX`` and ``TEST_SUFFIX``.
+
+.. command:: catch_discover_tests
+
+  Automatically add tests with CTest by querying the compiled test executable
+  for available tests::
+
+    catch_discover_tests(target
+                         [TEST_SPEC arg1...]
+                         [EXTRA_ARGS arg1...]
+                         [WORKING_DIRECTORY dir]
+                         [TEST_PREFIX prefix]
+                         [TEST_SUFFIX suffix]
+                         [PROPERTIES name1 value1...]
+                         [TEST_LIST var]
+    )
+
+  ``catch_discover_tests`` sets up a post-build command on the test executable
+  that generates the list of tests by parsing the output from running the test
+  with the ``--list-test-names-only`` argument.  This ensures that the full
+  list of tests is obtained.  Since test discovery occurs at build time, it is
+  not necessary to re-run CMake when the list of tests changes.
+  However, it requires that :prop_tgt:`CROSSCOMPILING_EMULATOR` is properly set
+  in order to function in a cross-compiling environment.
+
+  Additionally, setting properties on tests is somewhat less convenient, since
+  the tests are not available at CMake time.  Additional test properties may be
+  assigned to the set of tests as a whole using the ``PROPERTIES`` option.  If
+  more fine-grained test control is needed, custom content may be provided
+  through an external CTest script using the :prop_dir:`TEST_INCLUDE_FILES`
+  directory property.  The set of discovered tests is made accessible to such a
+  script via the ``<target>_TESTS`` variable.
+
+  The options are:
+
+  ``target``
+    Specifies the Catch executable, which must be a known CMake executable
+    target.  CMake will substitute the location of the built executable when
+    running the test.
+
+  ``TEST_SPEC arg1...``
+    Specifies test cases, wildcarded test cases, tags and tag expressions to
+    pass to the Catch executable with the ``--list-test-names-only`` argument.
+
+  ``EXTRA_ARGS arg1...``
+    Any extra arguments to pass on the command line to each test case.
+
+  ``WORKING_DIRECTORY dir``
+    Specifies the directory in which to run the discovered test cases.  If this
+    option is not provided, the current binary directory is used.
+
+  ``TEST_PREFIX prefix``
+    Specifies a ``prefix`` to be prepended to the name of each discovered test
+    case.  This can be useful when the same test executable is being used in
+    multiple calls to ``catch_discover_tests()`` but with different
+    ``TEST_SPEC`` or ``EXTRA_ARGS``.
+
+  ``TEST_SUFFIX suffix``
+    Similar to ``TEST_PREFIX`` except the ``suffix`` is appended to the name of
+    every discovered test case.  Both ``TEST_PREFIX`` and ``TEST_SUFFIX`` may
+    be specified.
+
+  ``PROPERTIES name1 value1...``
+    Specifies additional properties to be set on all tests discovered by this
+    invocation of ``catch_discover_tests``.
+
+  ``TEST_LIST var``
+    Make the list of tests available in the variable ``var``, rather than the
+    default ``<target>_TESTS``.  This can be useful when the same test
+    executable is being used in multiple calls to ``catch_discover_tests()``.
+    Note that this variable is only available in CTest.
+
+#]=======================================================================]
+
+#------------------------------------------------------------------------------
+function(catch_discover_tests TARGET)
+  cmake_parse_arguments(
+    ""
+    ""
+    "TEST_PREFIX;TEST_SUFFIX;WORKING_DIRECTORY;TEST_LIST"
+    "TEST_SPEC;EXTRA_ARGS;PROPERTIES"
+    ${ARGN}
+  )
+
+  if(NOT _WORKING_DIRECTORY)
+    set(_WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+  endif()
+  if(NOT _TEST_LIST)
+    set(_TEST_LIST ${TARGET}_TESTS)
+  endif()
+
+  ## Generate a unique name based on the extra arguments
+  string(SHA1 args_hash "${_TEST_SPEC} ${_EXTRA_ARGS}")
+  string(SUBSTRING ${args_hash} 0 7 args_hash)
+
+  # Define rule to generate test list for aforementioned test executable
+  set(ctest_include_file "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_include-${args_hash}.cmake")
+  set(ctest_tests_file "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_tests-${args_hash}.cmake")
+  get_property(crosscompiling_emulator
+    TARGET ${TARGET}
+    PROPERTY CROSSCOMPILING_EMULATOR
+  )
+  add_custom_command(
+    TARGET ${TARGET} POST_BUILD
+    BYPRODUCTS "${ctest_tests_file}"
+    COMMAND "${CMAKE_COMMAND}"
+            -D "TEST_TARGET=${TARGET}"
+            -D "TEST_EXECUTABLE=$<TARGET_FILE:${TARGET}>"
+            -D "TEST_EXECUTOR=${crosscompiling_emulator}"
+            -D "TEST_WORKING_DIR=${_WORKING_DIRECTORY}"
+            -D "TEST_SPEC=${_TEST_SPEC}"
+            -D "TEST_EXTRA_ARGS=${_EXTRA_ARGS}"
+            -D "TEST_PROPERTIES=${_PROPERTIES}"
+            -D "TEST_PREFIX=${_TEST_PREFIX}"
+            -D "TEST_SUFFIX=${_TEST_SUFFIX}"
+            -D "TEST_LIST=${_TEST_LIST}"
+            -D "CTEST_FILE=${ctest_tests_file}"
+            -P "${_CATCH_DISCOVER_TESTS_SCRIPT}"
+    VERBATIM
+  )
+
+  file(WRITE "${ctest_include_file}"
+    "if(EXISTS \"${ctest_tests_file}\")\n"
+    "  include(\"${ctest_tests_file}\")\n"
+    "else()\n"
+    "  add_test(${TARGET}_NOT_BUILT-${args_hash} ${TARGET}_NOT_BUILT-${args_hash})\n"
+    "endif()\n"
+  )
+
+  if(NOT ${CMAKE_VERSION} VERSION_LESS "3.10.0") 
+    # Add discovered tests to directory TEST_INCLUDE_FILES
+    set_property(DIRECTORY
+      APPEND PROPERTY TEST_INCLUDE_FILES "${ctest_include_file}"
+    )
+  else()
+    # Add discovered tests as directory TEST_INCLUDE_FILE if possible
+    get_property(test_include_file_set DIRECTORY PROPERTY TEST_INCLUDE_FILE SET)
+    if (NOT ${test_include_file_set})
+      set_property(DIRECTORY
+        PROPERTY TEST_INCLUDE_FILE "${ctest_include_file}"
+      )
+    else()
+      message(FATAL_ERROR
+        "Cannot set more than one TEST_INCLUDE_FILE"
+      )
+    endif()
+  endif()
+
+endfunction()
+
+###############################################################################
+
+set(_CATCH_DISCOVER_TESTS_SCRIPT
+  ${CMAKE_CURRENT_LIST_DIR}/CatchAddTests.cmake
+)

cmake/CatchAddTests.cmake

@@ -0,0 +1,78 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+set(prefix "${TEST_PREFIX}")
+set(suffix "${TEST_SUFFIX}")
+set(spec ${TEST_SPEC})
+set(extra_args ${TEST_EXTRA_ARGS})
+set(properties ${TEST_PROPERTIES})
+set(script)
+set(suite)
+set(tests)
+
+function(add_command NAME)
+  set(_args "")
+  foreach(_arg ${ARGN})
+    if(_arg MATCHES "[^-./:a-zA-Z0-9_]")
+      set(_args "${_args} [==[${_arg}]==]") # form a bracket_argument
+    else()
+      set(_args "${_args} ${_arg}")
+    endif()
+  endforeach()
+  set(script "${script}${NAME}(${_args})\n" PARENT_SCOPE)
+endfunction()
+
+# Run test executable to get list of available tests
+if(NOT EXISTS "${TEST_EXECUTABLE}")
+  message(FATAL_ERROR
+    "Specified test executable '${TEST_EXECUTABLE}' does not exist"
+  )
+endif()
+execute_process(
+  COMMAND ${TEST_EXECUTOR} "${TEST_EXECUTABLE}" ${spec} --list-test-names-only
+  OUTPUT_VARIABLE output
+  RESULT_VARIABLE result
+)
+# Catch --list-test-names-only reports the number of tests, so 0 is... surprising
+if(${result} EQUAL 0)
+  message(WARNING
+    "Test executable '${TEST_EXECUTABLE}' contains no tests!\n"
+  )
+elseif(${result} LESS 0)
+  message(FATAL_ERROR
+    "Error running test executable '${TEST_EXECUTABLE}':\n"
+    "  Result: ${result}\n"
+    "  Output: ${output}\n"
+  )
+endif()
+
+string(REPLACE "\n" ";" output "${output}")
+
+# Parse output
+foreach(line ${output})
+  set(test ${line})
+  # use escape commas to handle properly test cases with commans inside the name
+  string(REPLACE "," "\\," test_name ${test})
+  # ...and add to script
+  add_command(add_test
+    "${prefix}${test}${suffix}"
+    ${TEST_EXECUTOR}
+    "${TEST_EXECUTABLE}"
+    "${test_name}"
+    ${extra_args}
+  )
+  add_command(set_tests_properties
+    "${prefix}${test}${suffix}"
+    PROPERTIES
+    WORKING_DIRECTORY "${TEST_WORKING_DIR}"
+    ${properties}
+  )
+  list(APPEND tests "${prefix}${test}${suffix}")
+endforeach()
+
+# Create a list of all discovered tests, which users may use to e.g. set
+# properties on the tests
+add_command(set ${TEST_LIST} ${tests})
+
+# Write CTest script
+file(WRITE "${CTEST_FILE}" "${script}")

cmake/CodeCoverage.cmake

@@ -0,0 +1,392 @@
+# Copyright (c) 2012 - 2017, Lars Bilke All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this
+#   list of conditions and the following disclaimer.
+#
+# 1. 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.
+#
+# 1. Neither the name of the copyright holder nor the names of its contributors
+#   may be used to endorse or promote products derived from this software
+#   without specific prior written permission.
+#
+# 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 HOLDER OR CONTRIBUTORS 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.
+#
+# CHANGES:
+#
+# 2012-01-31, Lars Bilke - Enable Code Coverage
+#
+# 2013-09-17, Joakim Söderberg - Added support for Clang. - Some additional
+# usage instructions.
+#
+# 2016-02-03, Lars Bilke - Refactored functions to use named parameters
+#
+# 2017-06-02, Lars Bilke - Merged with modified version from github.com/ufz/ogs
+#
+# USAGE:
+#
+# 1. Copy this file into your cmake modules path.
+#
+# 1. Add the following line to your CMakeLists.txt: include(CodeCoverage)
+#
+# 1. Append necessary compiler flags: APPEND_COVERAGE_COMPILER_FLAGS()
+#
+# 1. If you need to exclude additional directories from the report, specify them
+#   using the COVERAGE_LCOV_EXCLUDES variable before calling
+#   SETUP_TARGET_FOR_COVERAGE_LCOV. Example: set(COVERAGE_LCOV_EXCLUDES 'dir1/*'
+#   'dir2/*')
+#
+# 1. Use the functions described below to create a custom make target which runs
+#   your test executable and produces a code coverage report.
+#
+# 1. Build a Debug build: cmake -DCMAKE_BUILD_TYPE=Debug .. make make
+#   my_coverage_target
+#
+
+include(CMakeParseArguments)
+
+# Check prereqs
+find_program(GCOV_PATH ${CMAKE_SOURCE_DIR}/tests/llvm-gcov.sh gcov)
+find_program(LCOV_PATH
+             NAMES lcov
+                   lcov.bat
+                   lcov.exe
+                   lcov.perl)
+find_program(LLVM_COV_PATH NAMES llvm-cov-7 llvm-cov-6 llvm-profdata)
+find_program(LLVM_PROFDATA_PATH
+             NAMES llvm-profdata-7 llvm-profdata-6 llvm-profdata)
+find_program(GENHTML_PATH NAMES genhtml genhtml.perl genhtml.bat)
+find_program(GCOVR_PATH gcovr PATHS ${CMAKE_SOURCE_DIR}/scripts/test)
+find_program(SIMPLE_PYTHON_EXECUTABLE python)
+
+if(NOT GCOV_PATH)
+  message(FATAL_ERROR "gcov not found! Aborting...")
+endif() # NOT GCOV_PATH
+
+if("${CMAKE_CXX_COMPILER_ID}" MATCHES "(Apple)?[Cc]lang")
+  if("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS 3)
+    message(FATAL_ERROR "Clang version must be 3.0.0 or greater! Aborting...")
+  endif()
+elseif(NOT CMAKE_COMPILER_IS_GNUCXX)
+  message(FATAL_ERROR "Compiler is not GNU gcc! Aborting...")
+endif()
+
+set(
+  COVERAGE_COMPILER_FLAGS
+  "-g -O0 -fprofile-arcs -ftest-coverage -fprofile-instr-generate -fcoverage-mapping"
+  CACHE INTERNAL "")
+
+set(CMAKE_CXX_FLAGS_COVERAGE ${COVERAGE_COMPILER_FLAGS}
+    CACHE STRING "Flags used by the C++ compiler during coverage builds."
+    FORCE)
+set(CMAKE_C_FLAGS_COVERAGE ${COVERAGE_COMPILER_FLAGS}
+    CACHE STRING "Flags used by the C compiler during coverage builds."
+    FORCE)
+set(CMAKE_EXE_LINKER_FLAGS_COVERAGE ""
+    CACHE STRING "Flags used for linking binaries during coverage builds."
+    FORCE)
+set(CMAKE_SHARED_LINKER_FLAGS_COVERAGE ""
+    CACHE STRING
+          "Flags used by the shared libraries linker during coverage builds."
+    FORCE)
+mark_as_advanced(CMAKE_CXX_FLAGS_COVERAGE
+                 CMAKE_C_FLAGS_COVERAGE
+                 CMAKE_EXE_LINKER_FLAGS_COVERAGE
+                 CMAKE_SHARED_LINKER_FLAGS_COVERAGE)
+
+if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
+  message(
+    WARNING
+      "Code coverage results with an optimised (non-Debug) build may be misleading"
+    )
+endif() # NOT CMAKE_BUILD_TYPE STREQUAL "Debug"
+
+if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
+  link_libraries(gcov)
+else()
+  set(CMAKE_EXE_LINKER_FLAGS
+      "${CMAKE_EXE_LINKER_FLAGS} -fprofile-instr-generate")
+endif()
+
+# Defines a target for running and collection code coverage information Builds
+# dependencies, runs the given executable and outputs reports. NOTE! The
+# executable should always have a ZERO as exit code otherwise the coverage
+# generation will not complete.
+#
+# SETUP_TARGET_FOR_COVERAGE_LCOV_HTML( NAME testrunner_coverage # New target
+# name EXECUTABLE testrunner -j ${PROCESSOR_COUNT} # Executable in
+# PROJECT_BINARY_DIR DEPENDENCIES testrunner                     # Dependencies
+# to build first )
+function(SETUP_TARGET_FOR_COVERAGE_LCOV_HTML)
+
+  set(options NONE)
+  set(oneValueArgs NAME)
+  set(multiValueArgs
+      EXECUTABLE
+      EXECUTABLE_ARGS
+      DEPENDENCIES
+      LCOV_ARGS
+      GENHTML_ARGS)
+  cmake_parse_arguments(Coverage
+                        "${options}"
+                        "${oneValueArgs}"
+                        "${multiValueArgs}"
+                        ${ARGN})
+
+  if(NOT LCOV_PATH)
+    message(FATAL_ERROR "lcov not found! Aborting...")
+  endif() # NOT LCOV_PATH
+
+  if(NOT GENHTML_PATH)
+    message(FATAL_ERROR "genhtml not found! Aborting...")
+  endif() # NOT GENHTML_PATH
+
+  # Setup target
+  add_custom_target(
+    ${Coverage_NAME}
+    # Cleanup lcov
+    COMMAND ${LCOV_PATH} ${Coverage_LCOV_ARGS}
+            --gcov-tool ${GCOV_PATH} -directory .
+            --zerocounters # Create baseline to make sure untouched files show
+                           # up in the report
+    COMMAND ${LCOV_PATH} ${Coverage_LCOV_ARGS}
+            --gcov-tool ${GCOV_PATH} -c -i -d . -o ${Coverage_NAME}.base
+                        # Run tests
+    COMMAND ${Coverage_EXECUTABLE} ${Coverage_EXECUTABLE_ARGS}
+            # Capturing lcov counters and generating report
+    COMMAND ${LCOV_PATH} ${Coverage_LCOV_ARGS}
+            --gcov-tool ${GCOV_PATH}
+            --directory .
+            --capture
+            --output-file ${Coverage_NAME}.info
+                          # add baseline counters
+    COMMAND ${LCOV_PATH} ${Coverage_LCOV_ARGS}
+            --gcov-tool ${GCOV_PATH} -a ${Coverage_NAME}.base -a
+                        ${Coverage_NAME}.info
+            --output-file ${Coverage_NAME}.total
+    COMMAND ${LCOV_PATH} ${Coverage_LCOV_ARGS}
+            --gcov-tool ${GCOV_PATH}
+            --remove ${Coverage_NAME}.total ${COVERAGE_LCOV_EXCLUDES}
+            --output-file ${PROJECT_BINARY_DIR}/${Coverage_NAME}.info.cleaned
+                          # Generate HTML
+    COMMAND ${GENHTML_PATH} ${Coverage_GENHTML_ARGS} -o ${Coverage_NAME}
+            ${PROJECT_BINARY_DIR}/${Coverage_NAME}.info.cleaned
+            # Clean up
+    COMMAND ${CMAKE_COMMAND} -E remove ${Coverage_NAME}.base
+            ${Coverage_NAME}.total
+            ${PROJECT_BINARY_DIR}/${Coverage_NAME}.info.cleaned
+    WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    DEPENDS ${Coverage_DEPENDENCIES}
+    COMMENT
+      "Resetting code coverage counters to zero.\nProcessing code coverage counters and generating report."
+    )
+
+  # Show where to find the lcov info report
+  add_custom_command(
+    TARGET ${Coverage_NAME} POST_BUILD
+    COMMAND ;
+    COMMENT "Lcov code coverage info report saved in ${Coverage_NAME}.info.")
+
+  # Show info where to find the report
+  add_custom_command(
+    TARGET ${Coverage_NAME} POST_BUILD
+    COMMAND ;
+    COMMENT
+      "Open ./${Coverage_NAME}/index.html in your browser to view the coverage report."
+    )
+
+endfunction() # SETUP_TARGET_FOR_COVERAGE_LCOV_HTML
+
+# Defines a target for running and collection code coverage information Builds
+# dependencies, runs the given executable and outputs reports. NOTE! The
+# executable should always have a ZERO as exit code otherwise the coverage
+# generation will not complete.
+#
+# SETUP_TARGET_FOR_COVERAGE_LCOV_TXT( NAME testrunner_coverage # New target name
+# EXECUTABLE testrunner -j ${PROCESSOR_COUNT} # Executable in PROJECT_BINARY_DIR
+# DEPENDENCIES testrunner                     # Dependencies to build first )
+function(SETUP_TARGET_FOR_COVERAGE_LCOV_TXT)
+
+  set(options NONE)
+  set(oneValueArgs NAME)
+  set(multiValueArgs
+      EXECUTABLE
+      EXECUTABLE_ARGS
+      DEPENDENCIES
+      LCOV_ARGS
+      GENHTML_ARGS)
+  cmake_parse_arguments(Coverage
+                        "${options}"
+                        "${oneValueArgs}"
+                        "${multiValueArgs}"
+                        ${ARGN})
+
+  if(NOT LCOV_PATH)
+    message(FATAL_ERROR "lcov not found! Aborting...")
+  endif() # NOT LCOV_PATH
+
+  # Setup target
+  add_custom_target(
+    ${Coverage_NAME}
+    # Run tests
+    COMMAND ${Coverage_EXECUTABLE} ${Coverage_EXECUTABLE_ARGS}
+            # Generate coverage.txt for sonar
+    COMMAND ${LLVM_PROFDATA_PATH} merge default.profraw -output
+            ${Coverage_NAME}.profdata
+    COMMAND ${LLVM_COV_PATH} show -instr-profile=${Coverage_NAME}.profdata
+            ${CMAKE_CURRENT_BINARY_DIR}/${Coverage_EXECUTABLE} >
+            ${Coverage_NAME}.txt
+            # Generate HTML
+            # Clean up
+    COMMAND ${CMAKE_COMMAND} -E remove ${Coverage_NAME}.profdata default.profraw
+    WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    DEPENDS ${Coverage_DEPENDENCIES}
+    COMMENT
+      "Resetting code coverage counters to zero.\nProcessing code coverage counters and generating report."
+    )
+
+  # Show where to find the lcov info report
+  add_custom_command(
+    TARGET ${Coverage_NAME} POST_BUILD
+    COMMAND ;
+    COMMENT "Lcov code coverage info report saved in ${Coverage_NAME}.txt.")
+
+endfunction() # SETUP_TARGET_FOR_COVERAGE_LCOV_TXT
+
+# Defines a target for running and collection code coverage information Builds
+# dependencies, runs the given executable and outputs reports. NOTE! The
+# executable should always have a ZERO as exit code otherwise the coverage
+# generation will not complete.
+#
+# SETUP_TARGET_FOR_COVERAGE_GCOVR_XML( NAME ctest_coverage                    #
+# New target name EXECUTABLE ctest -j ${PROCESSOR_COUNT} # Executable in
+# PROJECT_BINARY_DIR DEPENDENCIES executable_target         # Dependencies to
+# build first )
+function(SETUP_TARGET_FOR_COVERAGE_GCOVR_XML)
+
+  set(options NONE)
+  set(oneValueArgs NAME)
+  set(multiValueArgs EXECUTABLE EXECUTABLE_ARGS DEPENDENCIES)
+  cmake_parse_arguments(Coverage
+                        "${options}"
+                        "${oneValueArgs}"
+                        "${multiValueArgs}"
+                        ${ARGN})
+
+  if(NOT SIMPLE_PYTHON_EXECUTABLE)
+    message(FATAL_ERROR "python not found! Aborting...")
+  endif() # NOT SIMPLE_PYTHON_EXECUTABLE
+
+  if(NOT GCOVR_PATH)
+    message(FATAL_ERROR "gcovr not found! Aborting...")
+  endif() # NOT GCOVR_PATH
+
+  # Combine excludes to several -e arguments
+  set(GCOVR_EXCLUDES "")
+  foreach(EXCLUDE ${COVERAGE_GCOVR_EXCLUDES})
+    list(APPEND GCOVR_EXCLUDES "-e")
+    list(APPEND GCOVR_EXCLUDES "${EXCLUDE}")
+  endforeach()
+
+  add_custom_target(
+    ${Coverage_NAME}
+    # Run tests
+    ${Coverage_EXECUTABLE} ${Coverage_EXECUTABLE_ARGS}
+    # Running gcovr
+    COMMAND ${GCOVR_PATH}
+            --xml -r ${PROJECT_SOURCE_DIR} ${GCOVR_EXCLUDES}
+            --object-directory=${PROJECT_BINARY_DIR} -o ${Coverage_NAME}.xml
+    WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    DEPENDS ${Coverage_DEPENDENCIES}
+    COMMENT "Running gcovr to produce Cobertura code coverage report.")
+
+  # Show info where to find the report
+  add_custom_command(
+    TARGET ${Coverage_NAME} POST_BUILD
+    COMMAND ;
+    COMMENT "Cobertura code coverage report saved in ${Coverage_NAME}.xml.")
+
+endfunction() # SETUP_TARGET_FOR_COVERAGE_GCOVR_XML
+
+# Defines a target for running and collection code coverage information Builds
+# dependencies, runs the given executable and outputs reports. NOTE! The
+# executable should always have a ZERO as exit code otherwise the coverage
+# generation will not complete.
+#
+# SETUP_TARGET_FOR_COVERAGE_GCOVR_HTML( NAME ctest_coverage                    #
+# New target name EXECUTABLE ctest -j ${PROCESSOR_COUNT} # Executable in
+# PROJECT_BINARY_DIR DEPENDENCIES executable_target         # Dependencies to
+# build first )
+function(SETUP_TARGET_FOR_COVERAGE_GCOVR_HTML)
+
+  set(options NONE)
+  set(oneValueArgs NAME)
+  set(multiValueArgs EXECUTABLE EXECUTABLE_ARGS DEPENDENCIES)
+  cmake_parse_arguments(Coverage
+                        "${options}"
+                        "${oneValueArgs}"
+                        "${multiValueArgs}"
+                        ${ARGN})
+
+  if(NOT SIMPLE_PYTHON_EXECUTABLE)
+    message(FATAL_ERROR "python not found! Aborting...")
+  endif() # NOT SIMPLE_PYTHON_EXECUTABLE
+
+  if(NOT GCOVR_PATH)
+    message(FATAL_ERROR "gcovr not found! Aborting...")
+  endif() # NOT GCOVR_PATH
+
+  # Combine excludes to several -e arguments
+  set(GCOVR_EXCLUDES "")
+  foreach(EXCLUDE ${COVERAGE_GCOVR_EXCLUDES})
+    list(APPEND GCOVR_EXCLUDES "-e")
+    list(APPEND GCOVR_EXCLUDES "${EXCLUDE}")
+  endforeach()
+
+  add_custom_target(
+    ${Coverage_NAME}
+    # Run tests
+    ${Coverage_EXECUTABLE} ${Coverage_EXECUTABLE_ARGS}
+    # Create folder
+    COMMAND ${CMAKE_COMMAND} -E make_directory
+            ${PROJECT_BINARY_DIR}/${Coverage_NAME}
+            # Running gcovr
+    COMMAND ${GCOVR_PATH}
+            --html
+            --html-details -r ${PROJECT_SOURCE_DIR} ${GCOVR_EXCLUDES}
+            --object-directory=${PROJECT_BINARY_DIR} -o
+                                                     ${Coverage_NAME}/index.html
+    WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    DEPENDS ${Coverage_DEPENDENCIES}
+    COMMENT "Running gcovr to produce HTML code coverage report.")
+
+  # Show info where to find the report
+  add_custom_command(
+    TARGET ${Coverage_NAME} POST_BUILD
+    COMMAND ;
+    COMMENT
+      "Open ${CMAKE_CURRENT_BINARY_DIR}/${Coverage_NAME}/index.html in your browser to view the coverage report."
+    )
+
+endfunction() # SETUP_TARGET_FOR_COVERAGE_GCOVR_HTML
+
+function(APPEND_COVERAGE_COMPILER_FLAGS)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${COVERAGE_COMPILER_FLAGS}" PARENT_SCOPE)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COVERAGE_COMPILER_FLAGS}"
+      PARENT_SCOPE)
+  message(
+    STATUS "Appending code coverage compiler flags: ${COVERAGE_COMPILER_FLAGS}")
+endfunction() # APPEND_COVERAGE_COMPILER_FLAGS

cmake/ConkyBuildOptions.cmake

@@ -3,52 +3,89 @@
 #
 # Please see COPYING for details
 #
-# Copyright (c) 2005-2018 Brenden Matthews, et. al. (see AUTHORS)
+# Copyright (c) 2005-2018 Brenden Matthews, et. al. (see AUTHORS) All rights
-# All rights reserved.
+# reserved.
 #
-# This program is free software: you can redistribute it and/or modify
+# This program is free software: you can redistribute it and/or modify it under
-# it under the terms of the GNU General Public License as published by
+# the terms of the GNU General Public License as published by the Free Software
-# the Free Software Foundation, either version 3 of the License, or
+# Foundation, either version 3 of the License, or (at your option) any later
-# (at your option) any later version.
+# version.
 #
-# This program is distributed in the hope that it will be useful,
+# This program is distributed in the hope that it will be useful, but WITHOUT
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
-# GNU General Public License for more details.
+# details. You should have received a copy of the GNU General Public License
-# You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
 if(NOT CMAKE_BUILD_TYPE)
   if(MAINTAINER_MODE)
-		set(CMAKE_BUILD_TYPE Debug CACHE STRING
+    set(
+      CMAKE_BUILD_TYPE Debug
+      CACHE
+        STRING
         "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
       FORCE)
   else(MAINTAINER_MODE)
-		set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
+    set(
+      CMAKE_BUILD_TYPE RelWithDebInfo
+      CACHE
+        STRING
         "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
       FORCE)
   endif(MAINTAINER_MODE)
 endif(NOT CMAKE_BUILD_TYPE)
 
 # -std options for all build types
-set(CMAKE_C_FLAGS "-std=c99" CACHE STRING "Flags used by the C compiler during all build types." FORCE)
+set(CMAKE_C_FLAGS "-std=c99"
-set(CMAKE_CXX_FLAGS "-std=c++17" CACHE STRING "Flags used by the C++ compiler during all build types." FORCE)
+    CACHE STRING "Flags used by the C compiler during all build types."
+    FORCE)
+set(CMAKE_CXX_FLAGS "-std=c++17"
+    CACHE STRING "Flags used by the C++ compiler during all build types."
+    FORCE)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS ON)
 
 if(MAINTAINER_MODE)
+  set(BUILD_TESTS true)
   # some extra debug flags when in 'maintainer mode'
   if(CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0)
-		# Some flags are only supported on GCC >= 7.0, such as -Wimplicit-fallthrough=2
+    # Some flags are only supported on GCC >= 7.0, such as -Wimplicit-
-		set(CMAKE_C_FLAGS_DEBUG "-ggdb -Wall -W -Wextra -Wunused -Wdeclaration-after-statement -Wundef -Wendif-labels -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Wstrict-prototypes -Wold-style-definition -Winline -Wmissing-noreturn -Wmissing-format-attribute -Wredundant-decls -pedantic -Werror -Wno-unknown-pragmas -Wno-error=pragmas -Wimplicit-fallthrough=2" CACHE STRING "Flags used by the compiler during debug builds." FORCE)
+    # fallthrough=2
-		set(CMAKE_CXX_FLAGS_DEBUG "-ggdb -Wall -W -Wextra -Wunused -pedantic -Werror -Wno-format -Wno-unknown-pragmas -Wno-error=pragmas -Wimplicit-fallthrough=2" CACHE STRING "Flags used by the compiler during debug builds." FORCE)
+    set(
+      CMAKE_C_FLAGS_DEBUG
+      "-ggdb -Wall -W -Wextra -Wunused -Wdeclaration-after-statement -Wundef -Wendif-labels -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Wstrict-prototypes -Wold-style-definition -Winline -Wmissing-noreturn -Wmissing-format-attribute -Wredundant-decls -pedantic -Werror -Wno-unknown-pragmas -Wno-error=pragmas -Wimplicit-fallthrough=2"
+      CACHE STRING "Flags used by the compiler during debug builds."
+      FORCE)
+    set(
+      CMAKE_CXX_FLAGS_DEBUG
+      "-ggdb -Wall -W -Wextra -Wunused -pedantic -Werror -Wno-format -Wno-unknown-pragmas -Wno-error=pragmas -Wimplicit-fallthrough=2"
+      CACHE STRING "Flags used by the compiler during debug builds."
+      FORCE)
   else()
-		set(CMAKE_C_FLAGS_DEBUG "-ggdb -Wall -W -Wextra -Wunused -Wdeclaration-after-statement -Wundef -Wendif-labels -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Wstrict-prototypes -Wold-style-definition -Winline -Wmissing-noreturn -Wmissing-format-attribute -Wredundant-decls -pedantic -Werror -Wno-unknown-pragmas -Wno-error=pragmas" CACHE STRING "Flags used by the compiler during debug builds." FORCE)
+    set(
-		set(CMAKE_CXX_FLAGS_DEBUG "-ggdb -Wall -W -Wextra -Wunused -pedantic -Werror -Wno-format -Wno-unknown-pragmas -Wno-error=pragmas" CACHE STRING "Flags used by the compiler during debug builds." FORCE)
+      CMAKE_C_FLAGS_DEBUG
+      "-ggdb -Wall -W -Wextra -Wunused -Wdeclaration-after-statement -Wundef -Wendif-labels -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Wstrict-prototypes -Wold-style-definition -Winline -Wmissing-noreturn -Wmissing-format-attribute -Wredundant-decls -pedantic -Werror -Wno-unknown-pragmas -Wno-error=pragmas"
+      CACHE STRING "Flags used by the compiler during debug builds."
+      FORCE)
+    set(
+      CMAKE_CXX_FLAGS_DEBUG
+      "-ggdb -Wall -W -Wextra -Wunused -pedantic -Werror -Wno-format -Wno-unknown-pragmas -Wno-error=pragmas"
+      CACHE STRING "Flags used by the compiler during debug builds."
+      FORCE)
   endif()
 endif(MAINTAINER_MODE)
 
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  set(USING_CLANG true)
+  if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 7.0.0
+     AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.0.0)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
+    set(USING_CLANG_7 true)
+  endif()
+endif()
+
 option(CHECK_CODE_QUALITY "Check code formatting/quality with clang" false)
 
 option(RELEASE "Build release package" false)
@@ -58,16 +95,21 @@ option(MAINTAINER_MODE "Enable maintainer mode (builds docs)" false)
 
 option(BUILD_I18N "Enable if you want internationalization support" true)
 if(BUILD_I18N)
-	set(LOCALE_DIR "${CMAKE_INSTALL_PREFIX}/share/locale" CACHE STRING "Directory containing the locales")
+  set(LOCALE_DIR "${CMAKE_INSTALL_PREFIX}/share/locale"
+      CACHE STRING "Directory containing the locales")
 endif(BUILD_I18N)
 
 # Some standard options
-set(SYSTEM_CONFIG_FILE "/etc/conky/conky.conf" CACHE STRING "Default system-wide Conky configuration file")
+set(SYSTEM_CONFIG_FILE "/etc/conky/conky.conf"
-# use FORCE below to make sure this changes when CMAKE_INSTALL_PREFIX is modified
+    CACHE STRING "Default system-wide Conky configuration file")
+# use FORCE below to make sure this changes when CMAKE_INSTALL_PREFIX is
+# modified
 if(NOT LIB_INSTALL_DIR)
   set(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}")
 endif(NOT LIB_INSTALL_DIR)
-set(PACKAGE_LIBRARY_DIR "${LIB_INSTALL_DIR}/conky" CACHE STRING "Package library path (where Lua bindings are installed" FORCE)
+set(PACKAGE_LIBRARY_DIR "${LIB_INSTALL_DIR}/conky"
+    CACHE STRING "Package library path (where Lua bindings are installed"
+    FORCE)
 set(DEFAULTNETDEV "eth0" CACHE STRING "Default networkdevice")
 
 # Mac only override
@@ -75,15 +117,17 @@ if(OS_DARWIN)
   set(DEFAULTNETDEV "en0" CACHE STRING "Default networkdevice" FORCE)
 endif(OS_DARWIN)
 
-set(XDG_CONFIG_FILE "$HOME/.config/conky/conky.conf" CACHE STRING "Configfile of the user (XDG)")
+set(XDG_CONFIG_FILE "$HOME/.config/conky/conky.conf"
+    CACHE STRING "Configfile of the user (XDG)")
 set(CONFIG_FILE "$HOME/.conkyrc" CACHE STRING "Configfile of the user")
-set(MAX_USER_TEXT_DEFAULT "16384" CACHE STRING "Default maximum size of config TEXT buffer, i.e. below TEXT line.")
+set(MAX_USER_TEXT_DEFAULT "16384"
-set(DEFAULT_TEXT_BUFFER_SIZE "256" CACHE STRING "Default size used for temporary, static text buffers")
+    CACHE STRING
+          "Default maximum size of config TEXT buffer, i.e. below TEXT line.")
+set(DEFAULT_TEXT_BUFFER_SIZE "256"
+    CACHE STRING "Default size used for temporary, static text buffers")
 set(MAX_NET_INTERFACES "64" CACHE STRING "Maximum number of network devices")
 
-
+# Platform specific options Linux only
-# Platform specific options
-# Linux only
 if(OS_LINUX)
   option(BUILD_PORT_MONITORS "Build TCP portmon support" true)
   option(BUILD_IBM "Support for IBM/Lenovo notebooks" true)
@@ -101,7 +145,10 @@ endif(OS_LINUX)
 
 # macOS Only
 if(OS_DARWIN)
-	option(BUILD_IPGFREQ "Enable cpu freq calculation based on Intel® Power Gadget; otherwise use constant factory value" false)
+  option(
+    BUILD_IPGFREQ
+    "Enable cpu freq calculation based on Intel® Power Gadget; otherwise use constant factory value"
+    false)
 endif(OS_DARWIN)
 
 # Optional features etc
@@ -113,15 +160,24 @@ option(BUILD_BUILTIN_CONFIG "Enable builtin default configuration" true)
 
 option(BUILD_IOSTATS "Enable disk I/O stats" true)
 
-option(BUILD_OLD_CONFIG "Enable support for the old syntax of configurations" true)
+option(BUILD_OLD_CONFIG "Enable support for the old syntax of configurations"
+       true)
 
 option(BUILD_MATH "Enable math support" true)
 
 option(BUILD_NCURSES "Enable ncurses support" true)
 if(BUILD_NCURSES)
-	option(LEAKFREE_NCURSES "Enable to hide false ncurses-memleaks in valgrind (works only when ncurses is compiled with --disable-leaks)" false)
+  option(
+    LEAKFREE_NCURSES
+    "Enable to hide false ncurses-memleaks in valgrind (works only when ncurses is compiled with --disable-leaks)"
+    false)
 else(BUILD_NCURSES)
-	set(LEAKFREE_NCURSES false CACHE BOOL "Enable to hide false ncurses-memleaks in valgrind (works only when ncurses is compiled with --disable-leaks)" FORCE)
+  set(
+    LEAKFREE_NCURSES false
+    CACHE
+      BOOL
+      "Enable to hide false ncurses-memleaks in valgrind (works only when ncurses is compiled with --disable-leaks)"
+    FORCE)
 endif(BUILD_NCURSES)
 
 option(BUILD_X11 "Build X11 support" true)
@@ -153,7 +209,9 @@ endif(BUILD_X11)
 if(OWN_WINDOW)
   option(BUILD_ARGB "Build ARGB (real transparency) support" true)
 else(OWN_WINDOW)
-	set(BUILD_ARGB false CACHE BOOL "Build ARGB (real transparency) support" FORCE)
+  set(BUILD_ARGB false
+      CACHE BOOL "Build ARGB (real transparency) support"
+      FORCE)
 endif(OWN_WINDOW)
 
 option(BUILD_LUA_CAIRO "Build cairo bindings for Lua" false)
@@ -198,9 +256,11 @@ option(BUILD_ICONV "Enable iconv support" false)
 
 option(BUILD_CMUS "Enable support for cmus music player" true)
 
-option(BUILD_JOURNAL "Enable support for reading from the systemd journal" false)
+option(BUILD_JOURNAL "Enable support for reading from the systemd journal"
+       false)
 
-option(BUILD_PULSEAUDIO "Enable support for Pulseaudio's default sink and source" false)
+option(BUILD_PULSEAUDIO
+       "Enable support for Pulseaudio's default sink and source" false)
 
 message(STATUS "CMAKE_C_FLAGS: " ${CMAKE_C_FLAGS})
 message(STATUS "CMAKE_CXX_FLAGS: " ${CMAKE_CXX_FLAGS})
@@ -215,6 +275,7 @@ message( STATUS "CMAKE_C_FLAGS_RELEASE: " ${CMAKE_C_FLAGS_RELEASE} )
 message(STATUS "CMAKE_CXX_FLAGS_RELEASE: " ${CMAKE_CXX_FLAGS_RELEASE})
 
 message(STATUS "CMAKE_C_FLAGS_RELWITHDEBINFO: " ${CMAKE_C_FLAGS_RELWITHDEBINFO})
-message( STATUS "CMAKE_CXX_FLAGS_RELWITHDEBINFO: " ${CMAKE_CXX_FLAGS_RELWITHDEBINFO} )
+message(STATUS "CMAKE_CXX_FLAGS_RELWITHDEBINFO: "
+               ${CMAKE_CXX_FLAGS_RELWITHDEBINFO})
 
 message(STATUS "CMAKE_BUILD_TYPE: " ${CMAKE_BUILD_TYPE})

sonar-project.properties

@@ -3,5 +3,6 @@ sonar.projectName=Conky
 sonar.sources=src
 sonar.cfamily.build-wrapper-output=build/bw-output
 sonar.cpp.std=c++17
-sonar.exclusions=3rdparty/**
+sonar.exclusions=3rdparty/**,tests/**
 sonar.cfamily.threads=4
+sonar.cfamily.llvm-cov.reportPath=build/test-conky-coverage-txt.txt

src/CMakeLists.txt

@@ -3,19 +3,18 @@
 #
 # Please see COPYING for details
 #
-# Copyright (c) 2005-2018 Brenden Matthews, et. al. (see AUTHORS)
+# Copyright (c) 2005-2018 Brenden Matthews, et. al. (see AUTHORS) All rights
-# All rights reserved.
+# reserved.
 #
-# This program is free software: you can redistribute it and/or modify
+# This program is free software: you can redistribute it and/or modify it under
-# it under the terms of the GNU General Public License as published by
+# the terms of the GNU General Public License as published by the Free Software
-# the Free Software Foundation, either version 3 of the License, or
+# Foundation, either version 3 of the License, or (at your option) any later
-# (at your option) any later version.
+# version.
 #
-# This program is distributed in the hope that it will be useful,
+# This program is distributed in the hope that it will be useful, but WITHOUT
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
-# GNU General Public License for more details.
+# details. You should have received a copy of the GNU General Public License
-# You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
@@ -27,208 +26,199 @@ endif(BUILD_BUILTIN_CONFIG OR BUILD_OLD_CONFIG)
 
 # ensure build.h and config.h aren't in the way
 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/config.h)
-  message(FATAL_ERROR "You must remove the autotools generated file '${CMAKE_CURRENT_SOURCE_DIR}/config.h' in order to build with CMake.")
+  message(
+    FATAL_ERROR
+      "You must remove the autotools generated file '${CMAKE_CURRENT_SOURCE_DIR}/config.h' in order to build with CMake."
+    )
 endif(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/config.h)
 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/build.h)
-  message(FATAL_ERROR "You must remove the autotools generated file '${CMAKE_CURRENT_SOURCE_DIR}/build.h' in order to build with CMake.")
+  message(
+    FATAL_ERROR
+      "You must remove the autotools generated file '${CMAKE_CURRENT_SOURCE_DIR}/build.h' in order to build with CMake."
+    )
 endif(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/build.h)
 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/defconfig.h)
-  message(FATAL_ERROR "You must remove the autotools generated file '${CMAKE_CURRENT_SOURCE_DIR}/defconfig.h' in order to build with CMake.")
+  message(
+    FATAL_ERROR
+      "You must remove the autotools generated file '${CMAKE_CURRENT_SOURCE_DIR}/defconfig.h' in order to build with CMake."
+    )
 endif(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/defconfig.h)
 
 set(conky_sources
     ${conky_sources}
-  c++wrap.cc c++wrap.hh
+    c++wrap.cc
-  colours.cc colours.h
+    c++wrap.hh
-  combine.cc combine.h
+    colours.cc
-  common.cc common.h
+    colours.h
-  conky.cc conky.h
+    combine.cc
-  core.cc core.h
+    combine.h
-  cpu.cc cpu.h
+    common.cc
-  diskio.cc diskio.h
+    common.h
-  entropy.cc entropy.h
+    conky.cc
-  exec.cc exec.h
+    conky.h
-  fs.cc fs.h
+    core.cc
-  mail.cc mail.h
+    core.h
-  misc.cc misc.h
+    cpu.cc
-  net_stat.cc net_stat.h
+    cpu.h
-  template.cc template.h
+    diskio.cc
-  mboxscan.cc mboxscan.h
+    diskio.h
-  read_tcpip.cc read_tcpip.h
+    entropy.cc
-  scroll.cc scroll.h
+    entropy.h
-  specials.cc specials.h
+    exec.cc
-  tailhead.cc tailhead.h
+    exec.h
-  temphelper.cc temphelper.h
+    fs.cc
-  text_object.cc text_object.h
+    fs.h
-  timeinfo.cc timeinfo.h
+    mail.cc
-  top.cc top.h
+    mail.h
-  algebra.cc algebra.h
+    misc.cc
-  prioqueue.cc prioqueue.h
+    misc.h
-  proc.cc proc.h
+    net_stat.cc
-  user.cc user.h
+    net_stat.h
-  luamm.cc luamm.hh
+    template.cc
-  data-source.cc data-source.hh
+    template.h
-  lua-config.cc lua-config.hh
+    mboxscan.cc
-  setting.cc setting.hh
+    mboxscan.h
-  llua.cc llua.h
+    read_tcpip.cc
-  update-cb.cc update-cb.hh
+    read_tcpip.h
+    scroll.cc
+    scroll.h
+    specials.cc
+    specials.h
+    tailhead.cc
+    tailhead.h
+    temphelper.cc
+    temphelper.h
+    text_object.cc
+    text_object.h
+    timeinfo.cc
+    timeinfo.h
+    top.cc
+    top.h
+    algebra.cc
+    algebra.h
+    prioqueue.cc
+    prioqueue.h
+    proc.cc
+    proc.h
+    user.cc
+    user.h
+    luamm.cc
+    luamm.hh
+    data-source.cc
+    data-source.hh
+    lua-config.cc
+    lua-config.hh
+    setting.cc
+    setting.hh
+    llua.cc
+    llua.h
+    update-cb.cc
+    update-cb.hh
     logging.h
-  semaphore.hh
+    semaphore.hh)
-)
 
 # Platform specific sources
 if(OS_LINUX)
-  set(linux
+  set(linux linux.cc linux.h users.cc users.h sony.cc sony.h i8k.cc i8k.h)
-    linux.cc linux.h
-    users.cc users.h
-    sony.cc sony.h
-    i8k.cc i8k.h
-  )
   set(optional_sources ${optional_sources} ${linux})
 endif(OS_LINUX)
 
 if(OS_FREEBSD)
-  set(freebsd
+  set(freebsd freebsd.cc freebsd.h bsdapm.cc bsdapm.h)
-    freebsd.cc freebsd.h
-    bsdapm.cc bsdapm.h
-  )
   set(optional_sources ${optional_sources} ${freebsd})
 endif(OS_FREEBSD)
 
 if(OS_DRAGONFLY)
-  set(dragonfly
+  set(dragonfly dragonfly.cc dragonfly.h bsdapm.cc bsdapm.h)
-    dragonfly.cc dragonfly.h
-    bsdapm.cc bsdapm.h
-  )
   set(optional_sources ${optional_sources} ${dragonfly})
 endif(OS_DRAGONFLY)
 
 if(OS_OPENBSD)
-  set(openbsd
+  set(openbsd openbsd.cc openbsd.h bsdapm.cc bsdapm.h)
-    openbsd.cc openbsd.h
-    bsdapm.cc bsdapm.h
-  )
   set(optional_sources ${optional_sources} ${openbsd})
 endif(OS_OPENBSD)
 
 # These below are not actually supported.  No idea what their status is.
 if(OS_SOLARIS)
-  set(solaris
+  set(solaris solaris.cc solaris.h)
-    solaris.cc solaris.h
-  )
   set(optional_sources ${optional_sources} ${solaris})
 endif(OS_SOLARIS)
 
 if(OS_NETBSD)
-  set(netbsd
+  set(netbsd netbsd.cc netbsd.h)
-    netbsd.cc netbsd.h
-  )
   set(optional_sources ${optional_sources} ${netbsd})
 endif(OS_NETBSD)
 
 if(OS_HAIKU)
-  set(haiku
+  set(haiku haiku.cc haiku.h)
-    haiku.cc haiku.h
-  )
   set(optional_sources ${optional_sources} ${haiku})
 endif(OS_HAIKU)
 
 if(OS_DARWIN)
-  set(darwin
+  set(darwin darwin.mm darwin.h darwin_sip.h i18n.h)
-    darwin.mm darwin.h
-    darwin_sip.h
-    i18n.h
-  )
   set(optional_sources ${optional_sources} ${darwin})
 endif(OS_DARWIN)
 
 # Optional sources
 if(HAVE_SOME_SOUNDCARD_H)
-  set(mixer
+  set(mixer mixer.cc mixer.h)
-    mixer.cc mixer.h
-  )
   set(optional_sources ${optional_sources} ${mixer})
 endif(HAVE_SOME_SOUNDCARD_H)
 
 if(BUILD_AUDACIOUS)
-  set(audacious
+  set(audacious audacious.cc audacious.h)
-    audacious.cc audacious.h
-  )
   set(optional_sources ${optional_sources} ${audacious})
 endif(BUILD_AUDACIOUS)
 
 if(BUILD_BMPX)
-  set(bmpx
+  set(bmpx bmpx.cc bmpx.h)
-    bmpx.cc bmpx.h
-  )
   set(optional_sources ${optional_sources} ${bmpx})
 endif(BUILD_BMPX)
 
 if(BUILD_IBM)
-  set(ibm
+  set(ibm ibm.cc ibm.h smapi.cc smapi.h)
-    ibm.cc ibm.h
-    smapi.cc smapi.h
-  )
   set(optional_sources ${optional_sources} ${ibm})
 endif(BUILD_IBM)
 
 if(BUILD_MPD)
-  set(mpd
+  set(mpd mpd.cc mpd.h libmpdclient.cc libmpdclient.h)
-    mpd.cc mpd.h
-    libmpdclient.cc libmpdclient.h
-  )
   set(optional_sources ${optional_sources} ${mpd})
 endif(BUILD_MPD)
 
 if(BUILD_MYSQL)
-  set(mysql
+  set(mysql mysql.cc mysql.h)
-    mysql.cc mysql.h
-  )
   set(optional_sources ${optional_sources} ${mysql})
 endif(BUILD_MYSQL)
 
 if(BUILD_MOC)
-  set(moc
+  set(moc moc.cc moc.h)
-    moc.cc moc.h
-  )
   set(optional_sources ${optional_sources} ${moc})
 endif(BUILD_MOC)
 
 if(BUILD_CMUS)
-  set(cmus
+  set(cmus cmus.cc cmus.h)
-    cmus.cc cmus.h
-  )
   set(optional_sources ${optional_sources} ${cmus})
 endif(BUILD_CMUS)
 
 if(BUILD_JOURNAL)
-  set(journal
+  set(journal journal.cc journal.h)
-    journal.cc journal.h
-  )
   set(optional_sources ${optional_sources} ${journal})
 endif(BUILD_JOURNAL)
 
 if(BUILD_XMMS2)
-  set(xmms2
+  set(xmms2 xmms2.cc xmms2.h)
-    xmms2.cc xmms2.h
-  )
   set(optional_sources ${optional_sources} ${xmms2})
 endif(BUILD_XMMS2)
 
 if(BUILD_PORT_MONITORS)
   add_library(tcp-portmon libtcp-portmon.cc libtcp-portmon.h)
   set(conky_libs ${conky_libs} tcp-portmon)
-  set(port_monitors
+  set(port_monitors tcp-portmon.cc tcp-portmon.h)
-    tcp-portmon.cc tcp-portmon.h
-  )
   set(optional_sources ${optional_sources} ${port_monitors})
 endif(BUILD_PORT_MONITORS)
 
 if(BUILD_X11)
-  set(x11
+  set(x11 x11.cc x11.h fonts.cc fonts.h)
-    x11.cc x11.h
-    fonts.cc fonts.h
-  )
   set(optional_sources ${optional_sources} ${x11})
 
   if(BUILD_XINERAMA)
@@ -238,107 +228,85 @@ if(BUILD_X11)
 endif(BUILD_X11)
 
 if(BUILD_HDDTEMP)
-  set(hddtemp
+  set(hddtemp hddtemp.cc hddtemp.h)
-    hddtemp.cc hddtemp.h
-  )
   set(optional_sources ${optional_sources} ${hddtemp})
 endif(BUILD_HDDTEMP)
 
 if(BUILD_EVE)
-  set(eve
+  set(eve eve.cc eve.h)
-    eve.cc eve.h
-  )
   set(optional_sources ${optional_sources} ${eve})
 endif(BUILD_EVE)
 
 if(BUILD_CURL)
-  set(ccurl_thread
+  set(ccurl_thread ccurl_thread.cc ccurl_thread.h)
-    ccurl_thread.cc ccurl_thread.h
-  )
   set(optional_sources ${optional_sources} ${ccurl_thread})
 endif(BUILD_CURL)
 
 if(BUILD_RSS)
-  set(rss
+  set(rss rss.cc rss.h prss.cc prss.h)
-    rss.cc rss.h
-    prss.cc prss.h
-  )
   set(optional_sources ${optional_sources} ${rss})
 endif(BUILD_RSS)
 
 if(BUILD_WEATHER)
-  set(weather
+  set(weather weather.cc weather.h)
-    weather.cc weather.h
-  )
   set(optional_sources ${optional_sources} ${weather})
 endif(BUILD_WEATHER)
 
 if(BUILD_NVIDIA)
-  set(nvidia
+  set(nvidia nvidia.cc nvidia.h)
-    nvidia.cc nvidia.h
-  )
   set(optional_sources ${optional_sources} ${nvidia})
 endif(BUILD_NVIDIA)
 
 if(BUILD_IMLIB2)
-  set(imlib2
+  set(imlib2 imlib2.cc imlib2.h)
-    imlib2.cc imlib2.h
-  )
   set(optional_sources ${optional_sources} ${imlib2})
 endif(BUILD_IMLIB2)
 
 if(BUILD_APCUPSD)
-  set(apcupsd
+  set(apcupsd apcupsd.cc apcupsd.h)
-    apcupsd.cc apcupsd.h
-  )
   set(optional_sources ${optional_sources} ${apcupsd})
 endif(BUILD_APCUPSD)
 
 if(BUILD_ICAL)
-  set(ical
+  set(ical ical.cc ical.h)
-    ical.cc ical.h
-  )
   set(optional_sources ${optional_sources} ${ical})
 endif(BUILD_ICAL)
 
 if(BUILD_IRC)
-  set(irc
+  set(irc irc.cc irc.h)
-    irc.cc irc.h
-  )
   set(optional_sources ${optional_sources} ${irc})
 endif(BUILD_IRC)
 
 if(BUILD_ICONV)
-  set(iconv
+  set(iconv iconv_tools.cc iconv_tools.h)
-    iconv_tools.cc iconv_tools.h
-  )
   set(optional_sources ${optional_sources} ${iconv})
 endif(BUILD_ICONV)
 
 if(BUILD_NCURSES)
-  set(ncurses_srcs
+  set(ncurses_srcs nc.cc nc.h)
-    nc.cc nc.h
-  )
   set(optional_sources ${optional_sources} ${ncurses_srcs})
 endif(BUILD_NCURSES)
 
 if(BUILD_PULSEAUDIO)
-  set(pulseaudio
+  set(pulseaudio pulseaudio.cc pulseaudio.h)
-    pulseaudio.cc pulseaudio.h
-  )
   set(optional_sources ${optional_sources} ${pulseaudio})
 endif(BUILD_PULSEAUDIO)
 
-add_executable(conky ${conky_sources} ${optional_sources})
+if(BUILD_TESTS)
-
+  # Create a library strictly for testing
+  add_library(conky_core ${conky_sources} ${optional_sources})
+  target_link_libraries(conky_core ${conky_libs})
+  add_executable(conky main.cc)
+  target_link_libraries(conky conky_core ${conky_libs})
+else()
+  add_executable(conky main.cc ${conky_sources} ${optional_sources})
   target_link_libraries(conky ${conky_libs})
+endif()
 
 # Install libtcp-portmon too?
-install(TARGETS
+install(TARGETS conky
-  conky
         RUNTIME DESTINATION bin
         LIBRARY DESTINATION lib
-  ARCHIVE DESTINATION lib
+        ARCHIVE DESTINATION lib)
-)
 
 print_target_properties(conky)

src/common.cc

@@ -43,12 +43,12 @@
 #include "core.h"
 #include "fs.h"
 #include "logging.h"
+#include "misc.h"
 #include "net_stat.h"
 #include "specials.h"
 #include "temphelper.h"
 #include "timeinfo.h"
 #include "top.h"
-#include "misc.h"
 
 /* check for OS and include appropriate headers */
 #if defined(__linux__)
@@ -134,12 +134,8 @@ double get_time() {
  * path. If HOME is unset it uses an empty string for substitution */
 std::string to_real_path(const std::string &source) {
   const char *homedir = getenv("HOME") != nullptr ? getenv("HOME") : "";
-  if (source.find("~/") == 0) {
+  if (source.find("~/") == 0) { return homedir + source.substr(1); }
-    return homedir + source.substr(1);
+  if (source.find("$HOME/") == 0) { return homedir + source.substr(5); }
-  }
-  if (source.find("$HOME/") == 0) {
-    return homedir + source.substr(5);
-  }
   return source;
 }
 
@@ -151,9 +147,7 @@ int open_fifo(const char *file, int *reported) {
   if (fd == -1) {
     if ((reported == nullptr) || *reported == 0) {
       NORM_ERR("can't open %s: %s", file, strerror(errno));
-      if (reported != nullptr) {
+      if (reported != nullptr) { *reported = 1; }
-        *reported = 1;
-      }
     }
     return -1;
   }
@@ -169,9 +163,7 @@ FILE *open_file(const char *file, int *reported) {
   if (fp == nullptr) {
     if ((reported == nullptr) || *reported == 0) {
       NORM_ERR("can't open %s: %s", file, strerror(errno));
-      if (reported != nullptr) {
+      if (reported != nullptr) { *reported = 1; }
-        *reported = 1;
-      }
     }
     return nullptr;
   }
@@ -182,9 +174,7 @@ FILE *open_file(const char *file, int *reported) {
 std::string variable_substitute(std::string s) {
   std::string::size_type pos = 0;
   while ((pos = s.find('$', pos)) != std::string::npos) {
-    if (pos + 1 >= s.size()) {
+    if (pos + 1 >= s.size()) { break; }
-      break;
-    }
 
     if (s[pos + 1] == '$') {
       s.erase(pos, 1);
@@ -195,15 +185,14 @@ std::string variable_substitute(std::string s) {
 
       if (isalpha((unsigned char)s[pos + 1]) != 0) {
         l = 1;
-        while (pos + l < s.size() && (isalnum((unsigned char)s[pos + l]) != 0)) {
+        while (pos + l < s.size() &&
+               (isalnum((unsigned char)s[pos + l]) != 0)) {
           ++l;
         }
         var = s.substr(pos + 1, l - 1);
       } else if (s[pos + 1] == '{') {
         l = s.find('}', pos);
-        if (l == std::string::npos) {
+        if (l == std::string::npos) { break; }
-          break;
-        }
         l -= pos - 1;
         var = s.substr(pos + 2, l - 3);
       } else {
@@ -273,9 +262,12 @@ void format_seconds_short(char *buf, unsigned int n, long seconds) {
 }
 
 conky::simple_config_setting<bool> no_buffers("no_buffers", true, true);
-conky::simple_config_setting<std::string> bar_fill("console_bar_fill", "#", false);
+conky::simple_config_setting<std::string> bar_fill("console_bar_fill", "#",
-conky::simple_config_setting<std::string> bar_unfill("console_bar_unfill", ".", false);
+                                                   false);
-conky::simple_config_setting<std::string> github_token("github_token", "", false);
+conky::simple_config_setting<std::string> bar_unfill("console_bar_unfill", ".",
+                                                     false);
+conky::simple_config_setting<std::string> github_token("github_token", "",
+                                                       false);
 
 void update_stuff() {
   /* clear speeds, addresses and up status in case device was removed and
@@ -310,21 +302,18 @@ void update_stuff() {
 }
 
 /* Ohkie to return negative values for temperatures */
-int round_to_int_temp(float f) {
+int round_to_int_temp(float f) { return static_cast<int>(f); }
-  return static_cast<int>(f);
-}
 /* Don't return negative values for cpugraph, bar, gauge, percentage.
  * Causes unreasonable numbers to show */
 unsigned int round_to_int(float f) {
-  if (f >= 0.0) {
+  if (f >= 0.0) { return static_cast<int>(f + 0.5); }
-    return static_cast<int>(f + 0.5);
-  }
   return 0;
 }
 
 void scan_loadavg_arg(struct text_object *obj, const char *arg) {
   obj->data.i = 0;
-  if ((arg != nullptr) && (arg[1] == 0) && (isdigit((unsigned char)arg[0]) != 0)) {
+  if ((arg != nullptr) && (arg[1] == 0) &&
+      (isdigit((unsigned char)arg[0]) != 0)) {
     obj->data.i = atoi(arg);
     if (obj->data.i > 3 || obj->data.i < 1) {
       NORM_ERR("loadavg arg needs to be in range (1,3)");
@@ -354,7 +343,8 @@ void scan_no_update(struct text_object *obj, const char *arg) {
 
 void free_no_update(struct text_object *obj) { free(obj->data.s); }
 
-void print_no_update(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_no_update(struct text_object *obj, char *p,
+                     unsigned int p_max_size) {
   snprintf(p, p_max_size, "%s", obj->data.s);
 }
 
@@ -385,9 +375,7 @@ uint8_t cpu_percentage(struct text_object *obj) {
 }
 
 double cpu_barval(struct text_object *obj) {
-  if (info.cpu_usage != nullptr) {
+  if (info.cpu_usage != nullptr) { return info.cpu_usage[obj->data.i]; }
-    return info.cpu_usage[obj->data.i];
-  }
   return 0.;
 }
 
@@ -457,7 +445,8 @@ void print_nodename(struct text_object *obj, char *p, unsigned int p_max_size) {
   snprintf(p, p_max_size, "%s", info.uname_s.nodename);
 }
 
-void print_nodename_short(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_nodename_short(struct text_object *obj, char *p,
+                          unsigned int p_max_size) {
   (void)obj;
   snprintf(p, p_max_size, "%s", info.uname_s.nodename);
   for (int i = 0; p[i] != 0; i++) {
@@ -485,22 +474,26 @@ void print_uptime(struct text_object *obj, char *p, unsigned int p_max_size) {
   format_seconds(p, p_max_size, static_cast<int>(info.uptime));
 }
 
-void print_uptime_short(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_uptime_short(struct text_object *obj, char *p,
+                        unsigned int p_max_size) {
   (void)obj;
   format_seconds_short(p, p_max_size, static_cast<int>(info.uptime));
 }
 
-void print_processes(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_processes(struct text_object *obj, char *p,
+                     unsigned int p_max_size) {
   (void)obj;
   spaced_print(p, p_max_size, "%hu", 4, info.procs);
 }
 
-void print_running_processes(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_running_processes(struct text_object *obj, char *p,
+                             unsigned int p_max_size) {
   (void)obj;
   spaced_print(p, p_max_size, "%hu", 4, info.run_procs);
 }
 
-void print_running_threads(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_running_threads(struct text_object *obj, char *p,
+                           unsigned int p_max_size) {
   (void)obj;
   spaced_print(p, p_max_size, "%hu", 4, info.run_threads);
 }
@@ -511,11 +504,13 @@ void print_threads(struct text_object *obj, char *p, unsigned int p_max_size) {
 }
 
 void print_buffers(struct text_object *obj, char *p, unsigned int p_max_size) {
-  human_readable(apply_base_multiplier(obj->data.s, info.buffers), p, p_max_size);
+  human_readable(apply_base_multiplier(obj->data.s, info.buffers), p,
+                 p_max_size);
 }
 
 void print_cached(struct text_object *obj, char *p, unsigned int p_max_size) {
-  human_readable(apply_base_multiplier(obj->data.s, info.cached), p, p_max_size);
+  human_readable(apply_base_multiplier(obj->data.s, info.cached), p,
+                 p_max_size);
 }
 
 void print_evaluate(struct text_object *obj, char *p, unsigned int p_max_size) {
@@ -530,9 +525,7 @@ int if_empty_iftest(struct text_object *obj) {
 
   generate_text_internal(&(buf[0]), max_user_text.get(*state), *obj->sub);
 
-  if (strlen(&(buf[0])) != 0) {
+  if (strlen(&(buf[0])) != 0) { result = 0; }
-    result = 0;
-  }
   return result;
 }
 
@@ -561,17 +554,13 @@ int if_existing_iftest(struct text_object *obj) {
   int result = 0;
 
   spc = strchr(obj->data.s, ' ');
-  if (spc != nullptr) {
+  if (spc != nullptr) { *spc = 0; }
-    *spc = 0;
-  }
   if (access(obj->data.s, F_OK) == 0) {
     if (spc == nullptr || (check_contains(obj->data.s, spc + 1) != 0)) {
       result = 1;
     }
   }
-  if (spc != nullptr) {
+  if (spc != nullptr) { *spc = ' '; }
-    *spc = ' ';
-  }
   return result;
 }
 
@@ -596,9 +585,7 @@ void free_acpitemp(struct text_object *obj) { close(obj->data.i); }
 
 void print_freq(struct text_object *obj, char *p, unsigned int p_max_size) {
   static int ok = 1;
-  if (ok != 0) {
+  if (ok != 0) { ok = get_freq(p, p_max_size, "%.0f", 1, obj->data.i); }
-    ok = get_freq(p, p_max_size, "%.0f", 1, obj->data.i);
-  }
 }
 
 void print_freq_g(struct text_object *obj, char *p, unsigned int p_max_size) {
@@ -619,7 +606,8 @@ void print_acpifan(struct text_object *obj, char *p, unsigned int p_max_size) {
   get_acpi_fan(p, p_max_size);
 }
 
-void print_acpiacadapter(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_acpiacadapter(struct text_object *obj, char *p,
+                         unsigned int p_max_size) {
   get_acpi_ac_adapter(p, p_max_size,
                       static_cast<const char *>(obj->data.opaque));
 }
@@ -628,7 +616,8 @@ void print_battery(struct text_object *obj, char *p, unsigned int p_max_size) {
   get_battery_stuff(p, p_max_size, obj->data.s, BATTERY_STATUS);
 }
 
-void print_battery_time(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_battery_time(struct text_object *obj, char *p,
+                        unsigned int p_max_size) {
   get_battery_stuff(p, p_max_size, obj->data.s, BATTERY_TIME);
 }
 
@@ -636,11 +625,13 @@ uint8_t battery_percentage(struct text_object *obj) {
   return get_battery_perct(obj->data.s);
 }
 
-void print_battery_short(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_battery_short(struct text_object *obj, char *p,
+                         unsigned int p_max_size) {
   get_battery_short_status(p, p_max_size, obj->data.s);
 }
 
-void print_battery_status(struct text_object *obj, char *p, unsigned int p_max_size) {
+void print_battery_status(struct text_object *obj, char *p,
+                          unsigned int p_max_size) {
   get_battery_stuff(p, p_max_size, obj->data.s, BATTERY_STATUS);
   if (0 == strncmp("charging", p, 8)) {
     snprintf(p, p_max_size, "%s", "charging");
@@ -672,9 +663,7 @@ void print_blink(struct text_object *obj, char *p, unsigned int p_max_size) {
     generate_text_internal(&(buf[0]), max_user_text.get(*state), *obj->sub);
     last_len = strlen(&(buf[0]));
   } else {
-    for (i = 0; i < last_len; i++) {
+    for (i = 0; i < last_len; i++) { buf[i] = ' '; }
-      buf[i] = ' ';
-    }
   }
 
   snprintf(p, p_max_size, "%s", &(buf[0]));
@@ -684,18 +673,19 @@ void print_blink(struct text_object *obj, char *p, unsigned int p_max_size) {
 void print_include(struct text_object *obj, char *p, unsigned int p_max_size) {
   std::vector<char> buf(max_user_text.get(*state));
 
-  if (obj->sub == nullptr) {
+  if (obj->sub == nullptr) { return; }
-    return;
-  }
 
   generate_text_internal(&(buf[0]), max_user_text.get(*state), *obj->sub);
   snprintf(p, p_max_size, "%s", &(buf[0]));
 }
 
 #ifdef BUILD_CURL
-#define NEW_TOKEN "https://github.com/settings/tokens/new?scopes=notifications&description=conky-query-github\n"
+#define NEW_TOKEN                       \
+  "https://github.com/settings/tokens/" \
+  "new?scopes=notifications&description=conky-query-github\n"
 static size_t read_github_data_cb(char *, size_t, size_t, char *);
-static size_t read_github_data_cb(char *data, size_t size, size_t nmemb, char *p) {
+static size_t read_github_data_cb(char *data, size_t size, size_t nmemb,
+                                  char *p) {
   char *ptr = data;
   size_t sz = nmemb * size;
   size_t z = 0;
@@ -704,33 +694,36 @@ static size_t read_github_data_cb(char *data, size_t size, size_t nmemb, char *p
 
   for (; *ptr; ptr++, z++) {
     if (z + 4 < sz) { /* Verifying up to *(ptr+4) */
-      if ('u' == *ptr && 'n' == *(ptr+1) &&
+      if ('u' == *ptr && 'n' == *(ptr + 1) && 'r' == *(ptr + 2) &&
-          'r' == *(ptr+2) && 'e' == *(ptr+3)) { /* "unread" */
+          'e' == *(ptr + 3)) { /* "unread" */
         ++x;
         skip = 0U;
       }
-      if ('m' == *ptr && 'e' == *(ptr+1) &&
+      if ('m' == *ptr && 'e' == *(ptr + 1) && 's' == *(ptr + 2) &&
-          's' == *(ptr+2) && 's' == *(ptr+3) && z+13 < sz) { /* "message": */
+          's' == *(ptr + 3) && z + 13 < sz) { /* "message": */
         if ('B' == *(ptr + 10) && 'a' == *(ptr + 11) &&
             'd' == *(ptr + 12)) { /* "Bad credentials" */
           NORM_ERR("Bad credentials: generate a new token:\n" NEW_TOKEN);
-          snprintf(p, 80, "%s", "GitHub: Bad credentials, generate a new token.");
+          snprintf(p, 80, "%s",
+                   "GitHub: Bad credentials, generate a new token.");
           skip = 1U;
           break;
         }
         if ('M' == *(ptr + 10) && 'i' == *(ptr + 11) &&
             's' == *(ptr + 12)) { /* Missing the 'notifications' scope. */
-          NORM_ERR("Missing 'notifications' scope. Generate a new token\n" NEW_TOKEN);
+          NORM_ERR(
-          snprintf(p, 80, "%s", "GitHub: Missing the notifications scope. Generate a new token.");
+              "Missing 'notifications' scope. Generate a new "
+              "token\n" NEW_TOKEN);
+          snprintf(
+              p, 80, "%s",
+              "GitHub: Missing the notifications scope. Generate a new token.");
           skip = 1U;
           break;
         }
       }
     }
   }
-  if (0U == skip) {
+  if (0U == skip) { snprintf(p, 49, "%zu", x); }
-    snprintf(p, 49, "%zu", x);
-  }
   return sz;
 }
 
@@ -744,11 +737,12 @@ void print_github(struct text_object *obj, char *p, unsigned int p_max_size) {
   CURLcode res;
 
   if (0 == strcmp(github_token.get(*state).c_str(), "")) {
-    NORM_ERR("${github_notifications} requires token. "
+    NORM_ERR(
-    "Go ahead and generate one "
+        "${github_notifications} requires token. "
-    NEW_TOKEN
+        "Go ahead and generate one " NEW_TOKEN
         "Insert it in conky.config = { github_token='TOKEN_SHA' }\n");
-    snprintf(p, p_max_size, "%s", "GitHub notifications requires token, generate a new one.");
+    snprintf(p, p_max_size, "%s",
+             "GitHub notifications requires token, generate a new one.");
     return;
   }
 
@@ -759,14 +753,13 @@ void print_github(struct text_object *obj, char *p, unsigned int p_max_size) {
   }
 
   snprintf(github_url, 255, "%s%s",
-    "https://api.github.com/notifications?access_token=", github_token.get(*state).c_str());
+           "https://api.github.com/notifications?access_token=",
+           github_token.get(*state).c_str());
   /* unique string for each conky user, so we dont hit any query limits */
   snprintf(user_agent, 29, "conky/%s", github_token.get(*state).c_str());
 
   curl_global_init(CURL_GLOBAL_ALL);
-  if (nullptr == (curl = curl_easy_init())) {
+  if (nullptr == (curl = curl_easy_init())) { goto error; }
-    goto error;
-  }
   curl_easy_setopt(curl, CURLOPT_URL, github_url);
   curl_easy_setopt(curl, CURLOPT_ACCEPT_ENCODING, "gzip");
   curl_easy_setopt(curl, CURLOPT_USERAGENT, user_agent);
@@ -776,21 +769,15 @@ void print_github(struct text_object *obj, char *p, unsigned int p_max_size) {
   curl_easy_setopt(curl, CURLOPT_WRITEDATA, p);
 
   res = curl_easy_perform(curl);
-  if (CURLE_OK != res) {
+  if (CURLE_OK != res) { goto error; }
-    goto error;
-  }
   snprintf(cached_result, 255, "%s", p);
   last_update = 60U;
 
 error:
-  if (nullptr != curl) {
+  if (nullptr != curl) { curl_easy_cleanup(curl); }
-    curl_easy_cleanup(curl);
-  }
   curl_global_cleanup();
 
-  if (!isdigit((unsigned char)*p)) {
+  if (!isdigit((unsigned char)*p)) { last_update = 1U; }
-    last_update = 1U;
-  }
 }
 
 void print_stock(struct text_object *obj, char *p, unsigned int p_max_size) {
@@ -835,8 +822,6 @@ void print_updates(struct text_object *obj, char *p, unsigned int p_max_size) {
 }
 
 int updatenr_iftest(struct text_object *obj) {
-  if (get_total_updates() % get_updatereset() != obj->data.i - 1) {
+  if (get_total_updates() % get_updatereset() != obj->data.i - 1) { return 0; }
-    return 0;
-  }
   return 1;
 }

src/common.h

@@ -175,4 +175,5 @@ void print_github(struct text_object *, char *, unsigned int);
 void print_stock(struct text_object *, char *, unsigned int);
 void free_stock(struct text_object *);
 #endif /* BUILD_CURL */
+
 #endif /* _COMMON_H */

src/conky.cc

@@ -33,7 +33,6 @@
 #include <climits>
 #include <clocale>
 #include <cmath>
-#include <csignal>
 #include <cstdarg>
 #include <ctime>
 #include <iostream>
@@ -82,7 +81,6 @@
 #endif
 
 /* local headers */
-#include "build.h"
 #include "colours.h"
 #include "core.h"
 #include "diskio.h"
@@ -203,8 +201,6 @@ int top_io;
 int top_running;
 static conky::simple_config_setting<bool> extra_newline("extra_newline", false,
                                                         false);
-static volatile sig_atomic_t g_sigterm_pending, g_sighup_pending,
-    g_sigusr2_pending;
 
 /* Update interval */
 conky::range_config_setting<double> update_interval(
@@ -246,177 +242,10 @@ static conky::range_config_setting<unsigned int> max_text_width(
 extern kvm_t *kd;
 #endif
 
-int argc_copy;
-char **argv_copy;
-
 /* prototypes for internally used functions */
 static void signal_handler(int /*sig*/);
 static void reload_config();
 
-static void print_version() {
-  std::cout << _(PACKAGE_NAME " " VERSION " compiled " BUILD_DATE
-                              " for " BUILD_ARCH
-                              "\n"
-                              "\nCompiled in features:\n\n"
-                              "System config file: " SYSTEM_CONFIG_FILE
-                              "\n"
-                              "Package library path: " PACKAGE_LIBDIR "\n\n")
-            << _("\n General:\n")
-#ifdef HAVE_OPENMP
-            << _("  * OpenMP\n")
-#endif /* HAVE_OPENMP */
-#ifdef BUILD_MATH
-            << _("  * math\n")
-#endif /* BUILD_MATH */
-#ifdef BUILD_HDDTEMP
-            << _("  * hddtemp\n")
-#endif /* BUILD_HDDTEMP */
-#ifdef BUILD_PORT_MONITORS
-            << _("  * portmon\n")
-#endif /* BUILD_PORT_MONITORS */
-#ifdef BUILD_HTTP
-            << _("  * HTTP\n")
-#endif /* BUILD_HTTP */
-#ifdef BUILD_IPV6
-            << _("  * IPv6\n")
-#endif /* BUILD_IPV6 */
-#ifdef BUILD_IRC
-            << _("  * IRC\n")
-#endif
-#ifdef BUILD_CURL
-            << _("  * Curl\n")
-#endif /* BUILD_CURL */
-#ifdef BUILD_RSS
-            << _("  * RSS\n")
-#endif /* BUILD_RSS */
-#ifdef BUILD_ICAL
-            << _("  * ICal\n")
-#endif /* BUILD_ICAL */
-#ifdef BUILD_ICONV
-            << _("  * iconv\n")
-#endif /* BUILD_ICONV */
-#ifdef BUILD_MYSQL
-            << _("  * MySQL\n")
-#endif /* BUILD_MYSQL */
-#ifdef BUILD_WEATHER_METAR
-            << _("  * Weather (METAR)\n")
-#endif /* BUILD_WEATHER_METAR */
-#ifdef BUILD_WLAN
-            << _("  * wireless\n")
-#endif /* BUILD_WLAN */
-#ifdef BUILD_IBM
-            << _("  * support for IBM/Lenovo notebooks\n")
-#endif /* BUILD_IBM */
-#ifdef BUILD_NVIDIA
-            << _("  * nvidia\n")
-#endif /* BUILD_NVIDIA */
-#ifdef BUILD_EVE
-            << _("  * eve-online\n")
-#endif /* BUILD_EVE */
-#ifdef BUILD_BUILTIN_CONFIG
-            << _("  * builtin default configuration\n")
-#endif /* BUILD_BUILTIN_CONFIG */
-#ifdef BUILD_OLD_CONFIG
-            << _("  * old configuration syntax\n")
-#endif /* BUILD_OLD_CONFIG */
-#ifdef BUILD_IMLIB2
-            << _("  * Imlib2\n")
-#endif /* BUILD_IMLIB2 */
-#ifdef HAVE_SOME_SOUNDCARD_H
-            << _("  * OSS mixer support\n")
-#endif /* HAVE_SOME_SOUNDCARD_H */
-#ifdef BUILD_MIXER_ALSA
-            << _("  * ALSA mixer support\n")
-#endif /* BUILD_MIXER_ALSA */
-#ifdef BUILD_APCUPSD
-            << _("  * apcupsd\n")
-#endif /* BUILD_APCUPSD */
-#ifdef BUILD_IOSTATS
-            << _("  * iostats\n")
-#endif /* BUILD_IOSTATS */
-#ifdef BUILD_NCURSES
-            << _("  * ncurses\n")
-#endif /* BUILD_NCURSES */
-#ifdef BUILD_I18N
-            << _("  * Internationalization support\n")
-#endif
-#ifdef BUILD_PULSEAUDIO
-            << _("  * PulseAudio\n")
-#endif /* BUIL_PULSEAUDIO */
-#ifdef DEBUG
-            << _("  * Debugging extensions\n")
-#endif
-#if defined BUILD_LUA_CAIRO || defined BUILD_LUA_IMLIB2 || BUILD_LUA_RSVG
-            << _("\n Lua bindings:\n")
-#endif
-#ifdef BUILD_LUA_CAIRO
-            << _("  * Cairo\n")
-#endif /* BUILD_LUA_CAIRO */
-#ifdef BUILD_LUA_IMLIB2
-            << _("  * Imlib2\n")
-#endif /* BUILD_LUA_IMLIB2 */
-#ifdef BUILD_LUA_RSVG
-            << _("  * RSVG\n")
-#endif /* BUILD_LUA_RSVG */
-#ifdef BUILD_X11
-            << _(" X11:\n")
-#ifdef BUILD_XDAMAGE
-            << _("  * Xdamage extension\n")
-#endif /* BUILD_XDAMAGE */
-#ifdef BUILD_XINERAMA
-            << _("  * Xinerama extension (virtual display)\n")
-#endif /* BUILD_XINERAMA */
-#ifdef BUILD_XSHAPE
-            << _("  * Xshape extension (click through)\n")
-#endif /* BUILD_XSHAPE */
-#ifdef BUILD_XDBE
-            << _("  * XDBE (double buffer extension)\n")
-#endif /* BUILD_XDBE */
-#ifdef BUILD_XFT
-            << _("  * Xft\n")
-#endif /* BUILD_XFT */
-#ifdef BUILD_ARGB
-            << _("  * ARGB visual\n")
-#endif /* BUILD_ARGB */
-#ifdef OWN_WINDOW
-            << _("  * Own window\n")
-#endif
-#endif /* BUILD_X11 */
-#if defined BUILD_AUDACIOUS || defined BUILD_BMPX || defined BUILD_CMUS || \
-    defined BUILD_MPD || defined BUILD_MOC || defined BUILD_XMMS2
-            << _("\n Music detection:\n")
-#endif
-#ifdef BUILD_AUDACIOUS
-            << _("  * Audacious\n")
-#endif /* BUILD_AUDACIOUS */
-#ifdef BUILD_BMPX
-            << _("  * BMPx\n")
-#endif /* BUILD_BMPX */
-#ifdef BUILD_CMUS
-            << _("  * CMUS\n")
-#endif /* BUILD_CMUS */
-#ifdef BUILD_MPD
-            << _("  * MPD\n")
-#endif /* BUILD_MPD */
-#ifdef BUILD_MOC
-            << _("  * MOC\n")
-#endif /* BUILD_MOC */
-#ifdef BUILD_XMMS2
-            << _("  * XMMS2\n")
-#endif /* BUILD_XMMS2 */
-            << _("\n Default values:\n") << "  * Netdevice: " DEFAULTNETDEV "\n"
-            << "  * Local configfile: " CONFIG_FILE "\n"
-#ifdef BUILD_I18N
-            << "  * Localedir: " LOCALE_DIR "\n"
-#endif /* BUILD_I18N */
-#ifdef BUILD_HTTP
-            << "  * HTTP-port: " << HTTPPORT << "\n"
-#endif /* BUILD_HTTP */
-            << "  * Maximum netdevices: " << MAX_NET_INTERFACES << "\n"
-            << "  * Maximum text size: " << MAX_USER_TEXT_DEFAULT << "\n"
-            << "  * Size text buffer: " << DEFAULT_TEXT_BUFFER_SIZE << "\n";
-}
-
 static const char *suffixes[] = {_nop("B"),   _nop("KiB"), _nop("MiB"),
                                  _nop("GiB"), _nop("TiB"), _nop("PiB"),
                                  ""};
@@ -464,7 +293,9 @@ static conky::simple_config_setting<bool> fork_to_background("background",
 
 /* set to 0 after the first time conky is run, so we don't fork again after the
  * first forking */
-static int first_pass = 1;
+int first_pass = 1;
+int argc_copy;
+char **argv_copy;
 
 conky::range_config_setting<int> cpu_avg_samples("cpu_avg_samples", 1, 14, 2,
                                                  true);
@@ -2006,7 +1837,9 @@ bool is_on_battery() {  // checks if at least one battery specified in
   return false;
 }
 
-static void main_loop() {
+volatile sig_atomic_t g_sigterm_pending, g_sighup_pending, g_sigusr2_pending;
+
+void main_loop() {
   int terminate = 0;
 #ifdef SIGNAL_BLOCKING
   sigset_t newmask, oldmask;
@@ -2497,8 +2330,6 @@ static void main_loop() {
 #endif /* HAVE_SYS_INOTIFY_H */
 }
 
-void initialisation(int argc, char **argv);
-
 /* reload the config file */
 static void reload_config() {
   struct stat sb {};
@@ -2716,74 +2547,6 @@ void load_config_file() {
   l.replace(-2);
   global_text = strdup(l.tocstring(-1));
   l.pop();
-
-  // XXX: what does this do?
-  //	global_text_lines = line + 1;
-
-#if 0
-#if defined(BUILD_NCURSES)
-#if defined(BUILD_X11)
-	if (out_to_x.get(*state) && out_to_ncurses.get(*state)) {
-		NORM_ERR("out_to_x and out_to_ncurses are incompatible, turning out_to_ncurses off");
-		state->pushboolean(false);
-		out_to_ncurses.lua_set(*state);
-	}
-#endif /* BUILD_X11 */
-	if ((out_to_stdout.get(*state) || out_to_stderr.get(*state))
-			&& out_to_ncurses.get(*state)) {
-		NORM_ERR("out_to_ncurses conflicts with out_to_console and out_to_stderr, disabling the later ones");
-		// XXX: this will need some rethinking
-		state->pushboolean(false);
-		out_to_stdout.lua_set(*state);
-		state->pushboolean(false);
-		out_to_stderr.lua_set(*state);
-	}
-#endif /* BUILD_NCURSES */
-#endif
-}
-
-static void print_help(const char *prog_name) {
-  printf("Usage: %s [OPTION]...\n" PACKAGE_NAME
-         " is a system monitor that renders text on desktop or to own "
-         "transparent\n"
-         "window. Command line options will override configurations defined in "
-         "config\n"
-         "file.\n"
-         "   -v, --version             version\n"
-         "   -q, --quiet               quiet mode\n"
-         "   -D, --debug               increase debugging output, ie. -DD for "
-         "more debugging\n"
-         "   -c, --config=FILE         config file to load\n"
-#ifdef BUILD_BUILTIN_CONFIG
-         "   -C, --print-config        print the builtin default config to "
-         "stdout\n"
-         "                             e.g. 'conky -C > ~/.conkyrc' will "
-         "create a new default config\n"
-#endif
-         "   -d, --daemonize           daemonize, fork to background\n"
-         "   -h, --help                help\n"
-#ifdef BUILD_X11
-         "   -a, --alignment=ALIGNMENT text alignment on screen, "
-         "{top,bottom,middle}_{left,right,middle}\n"
-         "   -X, --display=DISPLAY     X11 display to use\n"
-         "   -m, --xinerama-head=N     Xinerama monitor index (0=first)\n"
-         "   -f, --font=FONT           font to use\n"
-#ifdef OWN_WINDOW
-         "   -o, --own-window          create own window to draw\n"
-#endif
-         "   -b, --double-buffer       double buffer (prevents flickering)\n"
-         "   -w, --window-id=WIN_ID    window id to draw\n"
-         "   -x X                      x position\n"
-         "   -y Y                      y position\n"
-#endif /* BUILD_X11 */
-         "   -t, --text=TEXT           text to render, remember single quotes, "
-         "like -t '$uptime'\n"
-         "   -u, --interval=SECS       update interval\n"
-         "   -i COUNT                  number of times to update " PACKAGE_NAME
-         " (and quit)\n"
-         "   -p, --pause=SECS          pause for SECS seconds at startup "
-         "before doing anything\n",
-         prog_name);
 }
 
 inline void reset_optind() {
@@ -2795,40 +2558,6 @@ inline void reset_optind() {
 #endif
 }
 
-/* : means that character before that takes an argument */
-static const char *getopt_string =
-    "vVqdDSs:t:u:i:hc:p:"
-#ifdef BUILD_X11
-    "x:y:w:a:X:m:f:"
-#ifdef OWN_WINDOW
-    "o"
-#endif
-    "b"
-#endif /* BUILD_X11 */
-#ifdef BUILD_BUILTIN_CONFIG
-    "C"
-#endif
-    ;
-
-static const struct option longopts[] = {
-    {"help", 0, nullptr, 'h'},          {"version", 0, nullptr, 'V'},
-    {"quiet", 0, nullptr, 'q'},         {"debug", 0, nullptr, 'D'},
-    {"config", 1, nullptr, 'c'},
-#ifdef BUILD_BUILTIN_CONFIG
-    {"print-config", 0, nullptr, 'C'},
-#endif
-    {"daemonize", 0, nullptr, 'd'},
-#ifdef BUILD_X11
-    {"alignment", 1, nullptr, 'a'},     {"display", 1, nullptr, 'X'},
-    {"xinerama-head", 1, nullptr, 'm'}, {"font", 1, nullptr, 'f'},
-#ifdef OWN_WINDOW
-    {"own-window", 0, nullptr, 'o'},
-#endif
-    {"double-buffer", 0, nullptr, 'b'}, {"window-id", 1, nullptr, 'w'},
-#endif /* BUILD_X11 */
-    {"text", 1, nullptr, 't'},          {"interval", 1, nullptr, 'u'},
-    {"pause", 1, nullptr, 'p'},         {nullptr, 0, nullptr, 0}};
-
 void set_current_config() {
   /* load current_config, CONFIG_FILE or SYSTEM_CONFIG_FILE */
   struct stat s {};
@@ -2865,6 +2594,51 @@ void set_current_config() {
   if (current_config == "-") { current_config = "/dev/stdin"; }
 }
 
+/* : means that character before that takes an argument */
+const char *getopt_string =
+    "vVqdDSs:t:u:i:hc:p:"
+#ifdef BUILD_X11
+    "x:y:w:a:X:m:f:"
+#ifdef OWN_WINDOW
+    "o"
+#endif
+    "b"
+#endif /* BUILD_X11 */
+#ifdef BUILD_BUILTIN_CONFIG
+    "C"
+#endif
+    ;
+
+const struct option longopts[] = {
+    {"help", 0, nullptr, 'h'},          {"version", 0, nullptr, 'V'},
+    {"quiet", 0, nullptr, 'q'},         {"debug", 0, nullptr, 'D'},
+    {"config", 1, nullptr, 'c'},
+#ifdef BUILD_BUILTIN_CONFIG
+    {"print-config", 0, nullptr, 'C'},
+#endif
+    {"daemonize", 0, nullptr, 'd'},
+#ifdef BUILD_X11
+    {"alignment", 1, nullptr, 'a'},     {"display", 1, nullptr, 'X'},
+    {"xinerama-head", 1, nullptr, 'm'}, {"font", 1, nullptr, 'f'},
+#ifdef OWN_WINDOW
+    {"own-window", 0, nullptr, 'o'},
+#endif
+    {"double-buffer", 0, nullptr, 'b'}, {"window-id", 1, nullptr, 'w'},
+#endif /* BUILD_X11 */
+    {"text", 1, nullptr, 't'},          {"interval", 1, nullptr, 'u'},
+    {"pause", 1, nullptr, 'p'},         {nullptr, 0, nullptr, 0}};
+
+void setup_inotify() {
+#ifdef HAVE_SYS_INOTIFY_H
+  // the file descriptor will be automatically closed on exit
+  inotify_fd = inotify_init();
+  if (inotify_fd != -1) {
+    fcntl(inotify_fd, F_SETFL, fcntl(inotify_fd, F_GETFL) | O_NONBLOCK);
+
+    fcntl(inotify_fd, F_SETFD, fcntl(inotify_fd, F_GETFD) | FD_CLOEXEC);
+  }
+#endif /* HAVE_SYS_INOTIFY_H */
+}
 void initialisation(int argc, char **argv) {
   struct sigaction act {
   }, oact{};
@@ -3058,121 +2832,6 @@ void initialisation(int argc, char **argv) {
   llua_startup_hook();
 }
 
-int main(int argc, char **argv) {
-#ifdef BUILD_I18N
-  setlocale(LC_ALL, "");
-  bindtextdomain(PACKAGE_NAME, LOCALE_DIR);
-  textdomain(PACKAGE_NAME);
-#endif
-  argc_copy = argc;
-  argv_copy = argv;
-  g_sigterm_pending = 0;
-  g_sighup_pending = 0;
-  g_sigusr2_pending = 0;
-
-#ifdef BUILD_CURL
-  struct curl_global_initializer {
-    curl_global_initializer() {
-      if (curl_global_init(CURL_GLOBAL_ALL))
-        NORM_ERR(
-            "curl_global_init() failed, you may not be able to use curl "
-            "variables");
-    }
-    ~curl_global_initializer() { curl_global_cleanup(); }
-  };
-  curl_global_initializer curl_global;
-#endif
-
-  /* handle command line parameters that don't change configs */
-#ifdef BUILD_X11
-  if (!setlocale(LC_CTYPE, "")) {
-    NORM_ERR("Can't set the specified locale!\nCheck LANG, LC_CTYPE, LC_ALL.");
-  }
-#endif /* BUILD_X11 */
-  while (1) {
-    int c = getopt_long(argc, argv, getopt_string, longopts, nullptr);
-
-    if (c == -1) { break; }
-
-    switch (c) {
-      case 'D':
-        global_debug_level++;
-        break;
-      case 'v':
-      case 'V':
-        print_version();
-        return EXIT_SUCCESS;
-      case 'c':
-        current_config = optarg;
-        break;
-      case 'q':
-        if (freopen("/dev/null", "w", stderr) == nullptr)
-          CRIT_ERR(nullptr, nullptr, "could not open /dev/null as stderr!");
-        break;
-      case 'h':
-        print_help(argv[0]);
-        return 0;
-#ifdef BUILD_BUILTIN_CONFIG
-      case 'C':
-        std::cout << defconfig;
-        return 0;
-#endif
-#ifdef BUILD_X11
-      case 'w':
-        window.window = strtol(optarg, nullptr, 0);
-        break;
-#endif /* BUILD_X11 */
-
-      case '?':
-        return EXIT_FAILURE;
-    }
-  }
-
-  try {
-    set_current_config();
-
-    state = std::make_unique<lua::state>();
-
-    conky::export_symbols(*state);
-
-#ifdef HAVE_SYS_INOTIFY_H
-    // the file descriptor will be automatically closed on exit
-    inotify_fd = inotify_init();
-    if (inotify_fd != -1) {
-      fcntl(inotify_fd, F_SETFL, fcntl(inotify_fd, F_GETFL) | O_NONBLOCK);
-
-      fcntl(inotify_fd, F_SETFD, fcntl(inotify_fd, F_GETFD) | FD_CLOEXEC);
-    }
-#endif /* HAVE_SYS_INOTIFY_H */
-
-    initialisation(argc, argv);
-
-    first_pass = 0; /* don't ever call fork() again */
-
-    main_loop();
-  } catch (fork_throw &e) {
-    return EXIT_SUCCESS;
-  } catch (unknown_arg_throw &e) {
-    return EXIT_FAILURE;
-  } catch (obj_create_error &e) {
-    std::cerr << e.what() << std::endl;
-    clean_up(nullptr, nullptr);
-    return EXIT_FAILURE;
-  } catch (std::exception &e) {
-    std::cerr << PACKAGE_NAME ": " << e.what() << std::endl;
-    return EXIT_FAILURE;
-  }
-
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-  kvm_close(kd);
-#endif
-
-#ifdef LEAKFREE_NCURSES
-  _nc_free_and_exit(0);  // hide false memleaks
-#endif
-  return 0;
-}
-
 static void signal_handler(int sig) {
   /* signal handler is light as a feather, as it should be.
    * we will poll g_signal_pending with each loop of conky

src/conky.h

@@ -35,6 +35,7 @@
 #include <arpa/inet.h>
 #include <config.h>      /* defines */
 #include <sys/utsname.h> /* struct uname_s */
+#include <csignal>
 #include <memory>
 #include "common.h" /* at least for struct dns_data */
 #include "luamm.hh"
@@ -368,9 +369,21 @@ void delete_block_and_zero(T *&ptr) {
 
 extern std::unique_ptr<lua::state> state;
 
+extern conky::simple_config_setting<bool> out_to_stdout;
+
+void setup_inotify();
+void initialisation(int argc, char **argv);
+void set_current_config();
+void main_loop();
+
+extern volatile sig_atomic_t g_sigterm_pending, g_sighup_pending,
+    g_sigusr2_pending;
+
+extern int first_pass;
 extern int argc_copy;
 extern char **argv_copy;
 
-extern conky::simple_config_setting<bool> out_to_stdout;
+extern const char *getopt_string;
+extern const struct option longopts[];
 
 #endif /* _conky_h_ */

src/linux.cc

@@ -32,6 +32,7 @@
 #include <sys/stat.h>
 #include <sys/sysinfo.h>
 #include <sys/types.h>
+#include <clocale>
 #include "common.h"
 #include "conky.h"
 #include "diskio.h"

src/luamm.cc

@@ -56,16 +56,7 @@ int exception_to_string(lua_State *l) {
     } catch (std::exception &e) {
         lua_pushstring(l, e.what());
     } catch (...) {
-#if defined(__APPLE__) && defined(__MACH__)
+        lua_pushstring(l, typeid(*ptr).name());
-    // lua_pushstring(l, ptr->__cxa_exception_type()->name());
-    printf(
-        "%s: FIXME: no member named '__cxa_exception_type' in "
-        "'std::exception_ptr' \n",
-        __func__);
-    lua_pushstring(l, "FIXME: in luamm.cc");
-#else
-    lua_pushstring(l, ptr->__cxa_exception_type()->name());
-#endif
   }
   return 1;
 }

src/main.cc

@@ -0,0 +1,376 @@
+/*
+ *
+ * Conky, a system monitor, based on torsmo
+ *
+ * Any original torsmo code is licensed under the BSD license
+ *
+ * All code written since the fork of torsmo is licensed under the GPL
+ *
+ * Please see COPYING for details
+ *
+ * Copyright (c) 2005-2018 Brenden Matthews, Philip Kovacs, et. al.
+ *	(see AUTHORS)
+ * All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <getopt.h>
+#include <cstdio>
+#include <iostream>
+
+#include "build.h"
+#include "config.h"
+#include "conky.h"
+#include "lua-config.hh"
+
+#ifdef BUILD_X11
+#include "x11.h"
+#endif /* BUILD_X11 */
+
+#ifdef BUILD_CURL
+#include "ccurl_thread.h"
+#endif /* BUILD_CURL */
+
+#ifdef BUILD_BUILTIN_CONFIG
+#include "defconfig.h"
+
+#ifdef BUILD_OLD_CONFIG
+#include "convertconf.h"
+#endif /* BUILD_OLD_CONFIG */
+#endif /* BUILD_BUILTIN_CONFIG */
+
+static void print_version() {
+  std::cout << _(PACKAGE_NAME " " VERSION " compiled " BUILD_DATE
+                              " for " BUILD_ARCH
+                              "\n"
+                              "\nCompiled in features:\n\n"
+                              "System config file: " SYSTEM_CONFIG_FILE
+                              "\n"
+                              "Package library path: " PACKAGE_LIBDIR "\n\n")
+            << _("\n General:\n")
+#ifdef HAVE_OPENMP
+            << _("  * OpenMP\n")
+#endif /* HAVE_OPENMP */
+#ifdef BUILD_MATH
+            << _("  * math\n")
+#endif /* BUILD_MATH */
+#ifdef BUILD_HDDTEMP
+            << _("  * hddtemp\n")
+#endif /* BUILD_HDDTEMP */
+#ifdef BUILD_PORT_MONITORS
+            << _("  * portmon\n")
+#endif /* BUILD_PORT_MONITORS */
+#ifdef BUILD_HTTP
+            << _("  * HTTP\n")
+#endif /* BUILD_HTTP */
+#ifdef BUILD_IPV6
+            << _("  * IPv6\n")
+#endif /* BUILD_IPV6 */
+#ifdef BUILD_IRC
+            << _("  * IRC\n")
+#endif
+#ifdef BUILD_CURL
+            << _("  * Curl\n")
+#endif /* BUILD_CURL */
+#ifdef BUILD_RSS
+            << _("  * RSS\n")
+#endif /* BUILD_RSS */
+#ifdef BUILD_ICAL
+            << _("  * ICal\n")
+#endif /* BUILD_ICAL */
+#ifdef BUILD_ICONV
+            << _("  * iconv\n")
+#endif /* BUILD_ICONV */
+#ifdef BUILD_MYSQL
+            << _("  * MySQL\n")
+#endif /* BUILD_MYSQL */
+#ifdef BUILD_WEATHER_METAR
+            << _("  * Weather (METAR)\n")
+#endif /* BUILD_WEATHER_METAR */
+#ifdef BUILD_WLAN
+            << _("  * wireless\n")
+#endif /* BUILD_WLAN */
+#ifdef BUILD_IBM
+            << _("  * support for IBM/Lenovo notebooks\n")
+#endif /* BUILD_IBM */
+#ifdef BUILD_NVIDIA
+            << _("  * nvidia\n")
+#endif /* BUILD_NVIDIA */
+#ifdef BUILD_EVE
+            << _("  * eve-online\n")
+#endif /* BUILD_EVE */
+#ifdef BUILD_BUILTIN_CONFIG
+            << _("  * builtin default configuration\n")
+#endif /* BUILD_BUILTIN_CONFIG */
+#ifdef BUILD_OLD_CONFIG
+            << _("  * old configuration syntax\n")
+#endif /* BUILD_OLD_CONFIG */
+#ifdef BUILD_IMLIB2
+            << _("  * Imlib2\n")
+#endif /* BUILD_IMLIB2 */
+#ifdef HAVE_SOME_SOUNDCARD_H
+            << _("  * OSS mixer support\n")
+#endif /* HAVE_SOME_SOUNDCARD_H */
+#ifdef BUILD_MIXER_ALSA
+            << _("  * ALSA mixer support\n")
+#endif /* BUILD_MIXER_ALSA */
+#ifdef BUILD_APCUPSD
+            << _("  * apcupsd\n")
+#endif /* BUILD_APCUPSD */
+#ifdef BUILD_IOSTATS
+            << _("  * iostats\n")
+#endif /* BUILD_IOSTATS */
+#ifdef BUILD_NCURSES
+            << _("  * ncurses\n")
+#endif /* BUILD_NCURSES */
+#ifdef BUILD_I18N
+            << _("  * Internationalization support\n")
+#endif
+#ifdef BUILD_PULSEAUDIO
+            << _("  * PulseAudio\n")
+#endif /* BUIL_PULSEAUDIO */
+#ifdef DEBUG
+            << _("  * Debugging extensions\n")
+#endif
+#if defined BUILD_LUA_CAIRO || defined BUILD_LUA_IMLIB2 || BUILD_LUA_RSVG
+            << _("\n Lua bindings:\n")
+#endif
+#ifdef BUILD_LUA_CAIRO
+            << _("  * Cairo\n")
+#endif /* BUILD_LUA_CAIRO */
+#ifdef BUILD_LUA_IMLIB2
+            << _("  * Imlib2\n")
+#endif /* BUILD_LUA_IMLIB2 */
+#ifdef BUILD_LUA_RSVG
+            << _("  * RSVG\n")
+#endif /* BUILD_LUA_RSVG */
+#ifdef BUILD_X11
+            << _(" X11:\n")
+#ifdef BUILD_XDAMAGE
+            << _("  * Xdamage extension\n")
+#endif /* BUILD_XDAMAGE */
+#ifdef BUILD_XINERAMA
+            << _("  * Xinerama extension (virtual display)\n")
+#endif /* BUILD_XINERAMA */
+#ifdef BUILD_XSHAPE
+            << _("  * Xshape extension (click through)\n")
+#endif /* BUILD_XSHAPE */
+#ifdef BUILD_XDBE
+            << _("  * XDBE (double buffer extension)\n")
+#endif /* BUILD_XDBE */
+#ifdef BUILD_XFT
+            << _("  * Xft\n")
+#endif /* BUILD_XFT */
+#ifdef BUILD_ARGB
+            << _("  * ARGB visual\n")
+#endif /* BUILD_ARGB */
+#ifdef OWN_WINDOW
+            << _("  * Own window\n")
+#endif
+#endif /* BUILD_X11 */
+#if defined BUILD_AUDACIOUS || defined BUILD_BMPX || defined BUILD_CMUS || \
+    defined BUILD_MPD || defined BUILD_MOC || defined BUILD_XMMS2
+            << _("\n Music detection:\n")
+#endif
+#ifdef BUILD_AUDACIOUS
+            << _("  * Audacious\n")
+#endif /* BUILD_AUDACIOUS */
+#ifdef BUILD_BMPX
+            << _("  * BMPx\n")
+#endif /* BUILD_BMPX */
+#ifdef BUILD_CMUS
+            << _("  * CMUS\n")
+#endif /* BUILD_CMUS */
+#ifdef BUILD_MPD
+            << _("  * MPD\n")
+#endif /* BUILD_MPD */
+#ifdef BUILD_MOC
+            << _("  * MOC\n")
+#endif /* BUILD_MOC */
+#ifdef BUILD_XMMS2
+            << _("  * XMMS2\n")
+#endif /* BUILD_XMMS2 */
+            << _("\n Default values:\n") << "  * Netdevice: " DEFAULTNETDEV "\n"
+            << "  * Local configfile: " CONFIG_FILE "\n"
+#ifdef BUILD_I18N
+            << "  * Localedir: " LOCALE_DIR "\n"
+#endif /* BUILD_I18N */
+#ifdef BUILD_HTTP
+            << "  * HTTP-port: " << HTTPPORT << "\n"
+#endif /* BUILD_HTTP */
+            << "  * Maximum netdevices: " << MAX_NET_INTERFACES << "\n"
+            << "  * Maximum text size: " << MAX_USER_TEXT_DEFAULT << "\n"
+            << "  * Size text buffer: " << DEFAULT_TEXT_BUFFER_SIZE << "\n";
+}
+
+static void print_help(const char *prog_name) {
+  printf("Usage: %s [OPTION]...\n" PACKAGE_NAME
+         " is a system monitor that renders text on desktop or to own "
+         "transparent\n"
+         "window. Command line options will override configurations defined in "
+         "config\n"
+         "file.\n"
+         "   -v, --version             version\n"
+         "   -q, --quiet               quiet mode\n"
+         "   -D, --debug               increase debugging output, ie. -DD for "
+         "more debugging\n"
+         "   -c, --config=FILE         config file to load\n"
+#ifdef BUILD_BUILTIN_CONFIG
+         "   -C, --print-config        print the builtin default config to "
+         "stdout\n"
+         "                             e.g. 'conky -C > ~/.conkyrc' will "
+         "create a new default config\n"
+#endif
+         "   -d, --daemonize           daemonize, fork to background\n"
+         "   -h, --help                help\n"
+#ifdef BUILD_X11
+         "   -a, --alignment=ALIGNMENT text alignment on screen, "
+         "{top,bottom,middle}_{left,right,middle}\n"
+         "   -X, --display=DISPLAY     X11 display to use\n"
+         "   -m, --xinerama-head=N     Xinerama monitor index (0=first)\n"
+         "   -f, --font=FONT           font to use\n"
+#ifdef OWN_WINDOW
+         "   -o, --own-window          create own window to draw\n"
+#endif
+         "   -b, --double-buffer       double buffer (prevents flickering)\n"
+         "   -w, --window-id=WIN_ID    window id to draw\n"
+         "   -x X                      x position\n"
+         "   -y Y                      y position\n"
+#endif /* BUILD_X11 */
+         "   -t, --text=TEXT           text to render, remember single quotes, "
+         "like -t '$uptime'\n"
+         "   -u, --interval=SECS       update interval\n"
+         "   -i COUNT                  number of times to update " PACKAGE_NAME
+         " (and quit)\n"
+         "   -p, --pause=SECS          pause for SECS seconds at startup "
+         "before doing anything\n",
+         prog_name);
+}
+
+inline void reset_optind() {
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+    defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
+  optind = optreset = 1;
+#else
+  optind = 0;
+#endif
+}
+
+int main(int argc, char **argv) {
+#ifdef BUILD_I18N
+  setlocale(LC_ALL, "");
+  bindtextdomain(PACKAGE_NAME, LOCALE_DIR);
+  textdomain(PACKAGE_NAME);
+#endif
+  argc_copy = argc;
+  argv_copy = argv;
+  g_sigterm_pending = 0;
+  g_sighup_pending = 0;
+  g_sigusr2_pending = 0;
+
+#ifdef BUILD_CURL
+  struct curl_global_initializer {
+    curl_global_initializer() {
+      if (curl_global_init(CURL_GLOBAL_ALL))
+        NORM_ERR(
+            "curl_global_init() failed, you may not be able to use curl "
+            "variables");
+    }
+    ~curl_global_initializer() { curl_global_cleanup(); }
+  };
+  curl_global_initializer curl_global;
+#endif
+
+  /* handle command line parameters that don't change configs */
+#ifdef BUILD_X11
+  if (!setlocale(LC_CTYPE, "")) {
+    NORM_ERR("Can't set the specified locale!\nCheck LANG, LC_CTYPE, LC_ALL.");
+  }
+#endif /* BUILD_X11 */
+  while (1) {
+    int c = getopt_long(argc, argv, getopt_string, longopts, nullptr);
+
+    if (c == -1) { break; }
+
+    switch (c) {
+      case 'D':
+        global_debug_level++;
+        break;
+      case 'v':
+      case 'V':
+        print_version();
+        return EXIT_SUCCESS;
+      case 'c':
+        current_config = optarg;
+        break;
+      case 'q':
+        if (freopen("/dev/null", "w", stderr) == nullptr)
+          CRIT_ERR(nullptr, nullptr, "could not open /dev/null as stderr!");
+        break;
+      case 'h':
+        print_help(argv[0]);
+        return 0;
+#ifdef BUILD_BUILTIN_CONFIG
+      case 'C':
+        std::cout << defconfig;
+        return 0;
+#endif
+#ifdef BUILD_X11
+      case 'w':
+        window.window = strtol(optarg, nullptr, 0);
+        break;
+#endif /* BUILD_X11 */
+
+      case '?':
+        return EXIT_FAILURE;
+    }
+  }
+
+  try {
+    set_current_config();
+
+    state = std::make_unique<lua::state>();
+
+    conky::export_symbols(*state);
+
+    setup_inotify();
+
+    initialisation(argc, argv);
+
+    first_pass = 0; /* don't ever call fork() again */
+
+    main_loop();
+  } catch (fork_throw &e) {
+    return EXIT_SUCCESS;
+  } catch (unknown_arg_throw &e) {
+    return EXIT_FAILURE;
+  } catch (obj_create_error &e) {
+    std::cerr << e.what() << std::endl;
+    clean_up(nullptr, nullptr);
+    return EXIT_FAILURE;
+  } catch (std::exception &e) {
+    std::cerr << PACKAGE_NAME ": " << e.what() << std::endl;
+    return EXIT_FAILURE;
+  }
+
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+  kvm_close(kd);
+#endif
+
+#ifdef LEAKFREE_NCURSES
+  _nc_free_and_exit(0);  // hide false memleaks
+#endif
+  return 0;
+}

src/main.h

@@ -0,0 +1,32 @@
+/*
+ *
+ * Conky, a system monitor, based on torsmo
+ *
+ * Any original torsmo code is licensed under the BSD license
+ *
+ * All code written since the fork of torsmo is licensed under the GPL
+ *
+ * Please see COPYING for details
+ *
+ * Copyright (c) 2005-2018 Brenden Matthews, Philip Kovacs, et. al.
+ *	(see AUTHORS)
+ * All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef _main_h_
+#define _main_h_
+
+#endif /* _main_h_ */

tests/CMakeLists.txt

@@ -0,0 +1,47 @@
+include(CTest)
+
+include_directories(${CMAKE_SOURCE_DIR}/src)
+include_directories(${CMAKE_BINARY_DIR})
+include_directories(${conky_includes})
+
+set(test_srcs "")
+
+if(OS_LINUX)
+  set(test_srcs ${test_srcs} test-linux.cc)
+endif()
+
+if(OS_DARWIN)
+  set(test_srcs ${test_srcs} test-darwin.cc)
+endif()
+
+add_executable(test-conky test-common.cc ${test_srcs})
+target_link_libraries(test-conky conky_core)
+
+if(USING_CLANG_7)
+  set(COVERAGE_LCOV_EXCLUDES
+      "v1/*"
+      "/usr/include/**"
+      "/usr/lib/**"
+      "/usr/local/include/**"
+      "/usr/local/lib/**"
+      "/usr/include/libkern/i386/*"
+      "/usr/include/sys/_types/*"
+      "/usr/local/opt/gettext/include/*"
+      "${CMAKE_CURRENT_SOURCE_DIR}/*"
+      "${CMAKE_CURRENT_SOURCE_DIR}/catch2/*"
+      "${CMAKE_SOURCE_DIR}/3rdparty/*")
+
+  setup_target_for_coverage_lcov_html(NAME
+                                      test-conky-coverage-html
+                                      EXECUTABLE
+                                      test-conky
+                                      DEPENDENCIES
+                                      test-conky)
+  setup_target_for_coverage_lcov_txt(NAME
+                                     test-conky-coverage-txt
+                                     EXECUTABLE
+                                     test-conky
+                                     DEPENDENCIES
+                                     test-conky)
+  catch_discover_tests(test-conky)
+endif()

tests/catch2/catch_reporter_automake.hpp

@@ -0,0 +1,62 @@
+/*
+ *  Created by Justin R. Wilson on 2/19/2017.
+ *  Copyright 2017 Justin R. Wilson. All rights reserved.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef TWOBLUECUBES_CATCH_REPORTER_AUTOMAKE_HPP_INCLUDED
+#define TWOBLUECUBES_CATCH_REPORTER_AUTOMAKE_HPP_INCLUDED
+
+// Don't #include any Catch headers here - we can assume they are already
+// included before this header.
+// This is not good practice in general but is necessary in this case so this
+// file can be distributed as a single header that works with the main
+// Catch single header.
+
+namespace Catch {
+
+    struct AutomakeReporter : StreamingReporterBase<AutomakeReporter> {
+        AutomakeReporter( ReporterConfig const& _config )
+          :   StreamingReporterBase( _config )
+        {}
+
+        ~AutomakeReporter() override;
+
+        static std::string getDescription() {
+            return "Reports test results in the format of Automake .trs files";
+        }
+
+        void assertionStarting( AssertionInfo const& ) override {}
+
+        bool assertionEnded( AssertionStats const& /*_assertionStats*/ ) override { return true; }
+
+        void testCaseEnded( TestCaseStats const& _testCaseStats ) override {
+            // Possible values to emit are PASS, XFAIL, SKIP, FAIL, XPASS and ERROR.
+            stream << ":test-result: ";
+            if (_testCaseStats.totals.assertions.allPassed()) {
+                stream << "PASS";
+            } else if (_testCaseStats.totals.assertions.allOk()) {
+                stream << "XFAIL";
+            } else {
+                stream << "FAIL";
+            }
+            stream << ' ' << _testCaseStats.testInfo.name << '\n';
+            StreamingReporterBase::testCaseEnded( _testCaseStats );
+        }
+
+        void skipTest( TestCaseInfo const& testInfo ) override {
+            stream << ":test-result: SKIP " << testInfo.name << '\n';
+        }
+
+    };
+
+#ifdef CATCH_IMPL
+    AutomakeReporter::~AutomakeReporter() {}
+#endif
+
+    CATCH_REGISTER_REPORTER( "automake", AutomakeReporter)
+
+} // end namespace Catch
+
+#endif // TWOBLUECUBES_CATCH_REPORTER_AUTOMAKE_HPP_INCLUDED

tests/catch2/catch_reporter_tap.hpp

@@ -0,0 +1,253 @@
+/*
+ *  Created by Colton Wolkins on 2015-08-15.
+ *  Copyright 2015 Martin Moene. All rights reserved.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef TWOBLUECUBES_CATCH_REPORTER_TAP_HPP_INCLUDED
+#define TWOBLUECUBES_CATCH_REPORTER_TAP_HPP_INCLUDED
+
+
+// Don't #include any Catch headers here - we can assume they are already
+// included before this header.
+// This is not good practice in general but is necessary in this case so this
+// file can be distributed as a single header that works with the main
+// Catch single header.
+
+#include <algorithm>
+
+namespace Catch {
+
+    struct TAPReporter : StreamingReporterBase<TAPReporter> {
+
+        using StreamingReporterBase::StreamingReporterBase;
+
+        ~TAPReporter() override;
+
+        static std::string getDescription() {
+            return "Reports test results in TAP format, suitable for test harnesses";
+        }
+
+        ReporterPreferences getPreferences() const override {
+            return m_reporterPrefs;
+        }
+
+        void noMatchingTestCases( std::string const& spec ) override {
+            stream << "# No test cases matched '" << spec << "'" << std::endl;
+        }
+
+        void assertionStarting( AssertionInfo const& ) override {}
+
+        bool assertionEnded( AssertionStats const& _assertionStats ) override {
+            ++counter;
+
+            AssertionPrinter printer( stream, _assertionStats, counter );
+            printer.print();
+            stream << " # " << currentTestCaseInfo->name ;
+
+            stream << std::endl;
+            return true;
+        }
+
+        void testRunEnded( TestRunStats const& _testRunStats ) override {
+            printTotals( _testRunStats.totals );
+            stream << "\n" << std::endl;
+            StreamingReporterBase::testRunEnded( _testRunStats );
+        }
+
+    private:
+        std::size_t counter = 0;
+        class AssertionPrinter {
+        public:
+            AssertionPrinter& operator= ( AssertionPrinter const& ) = delete;
+            AssertionPrinter( AssertionPrinter const& ) = delete;
+            AssertionPrinter( std::ostream& _stream, AssertionStats const& _stats, std::size_t _counter )
+            : stream( _stream )
+            , result( _stats.assertionResult )
+            , messages( _stats.infoMessages )
+            , itMessage( _stats.infoMessages.begin() )
+            , printInfoMessages( true )
+            , counter(_counter)
+            {}
+
+            void print() {
+                itMessage = messages.begin();
+
+                switch( result.getResultType() ) {
+                    case ResultWas::Ok:
+                        printResultType( passedString() );
+                        printOriginalExpression();
+                        printReconstructedExpression();
+                        if ( ! result.hasExpression() )
+                            printRemainingMessages( Colour::None );
+                        else
+                            printRemainingMessages();
+                        break;
+                    case ResultWas::ExpressionFailed:
+                        if (result.isOk()) {
+                            printResultType(passedString());
+                        } else {
+                            printResultType(failedString());
+                        }
+                        printOriginalExpression();
+                        printReconstructedExpression();
+                        if (result.isOk()) {
+                            printIssue(" # TODO");
+                        }
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::ThrewException:
+                        printResultType( failedString() );
+                        printIssue( "unexpected exception with message:" );
+                        printMessage();
+                        printExpressionWas();
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::FatalErrorCondition:
+                        printResultType( failedString() );
+                        printIssue( "fatal error condition with message:" );
+                        printMessage();
+                        printExpressionWas();
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::DidntThrowException:
+                        printResultType( failedString() );
+                        printIssue( "expected exception, got none" );
+                        printExpressionWas();
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::Info:
+                        printResultType( "info" );
+                        printMessage();
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::Warning:
+                        printResultType( "warning" );
+                        printMessage();
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::ExplicitFailure:
+                        printResultType( failedString() );
+                        printIssue( "explicitly" );
+                        printRemainingMessages( Colour::None );
+                        break;
+                    // These cases are here to prevent compiler warnings
+                    case ResultWas::Unknown:
+                    case ResultWas::FailureBit:
+                    case ResultWas::Exception:
+                        printResultType( "** internal error **" );
+                        break;
+                }
+            }
+
+        private:
+            static Colour::Code dimColour() { return Colour::FileName; }
+
+            static const char* failedString() { return "not ok"; }
+            static const char* passedString() { return "ok"; }
+
+            void printSourceInfo() const {
+                Colour colourGuard( dimColour() );
+                stream << result.getSourceInfo() << ":";
+            }
+
+            void printResultType( std::string const& passOrFail ) const {
+                if( !passOrFail.empty() ) {
+                    stream << passOrFail << ' ' << counter << " -";
+                }
+            }
+
+            void printIssue( std::string const& issue ) const {
+                stream << " " << issue;
+            }
+
+            void printExpressionWas() {
+                if( result.hasExpression() ) {
+                    stream << ";";
+                    {
+                        Colour colour( dimColour() );
+                        stream << " expression was:";
+                    }
+                    printOriginalExpression();
+                }
+            }
+
+            void printOriginalExpression() const {
+                if( result.hasExpression() ) {
+                    stream << " " << result.getExpression();
+                }
+            }
+
+            void printReconstructedExpression() const {
+                if( result.hasExpandedExpression() ) {
+                    {
+                        Colour colour( dimColour() );
+                        stream << " for: ";
+                    }
+                    std::string expr = result.getExpandedExpression();
+                    std::replace( expr.begin(), expr.end(), '\n', ' ');
+                    stream << expr;
+                }
+            }
+
+            void printMessage() {
+                if ( itMessage != messages.end() ) {
+                    stream << " '" << itMessage->message << "'";
+                    ++itMessage;
+                }
+            }
+
+            void printRemainingMessages( Colour::Code colour = dimColour() ) {
+                if (itMessage == messages.end()) {
+                    return;
+                }
+
+                // using messages.end() directly (or auto) yields compilation error:
+                std::vector<MessageInfo>::const_iterator itEnd = messages.end();
+                const std::size_t N = static_cast<std::size_t>( std::distance( itMessage, itEnd ) );
+
+                {
+                    Colour colourGuard( colour );
+                    stream << " with " << pluralise( N, "message" ) << ":";
+                }
+
+                for(; itMessage != itEnd; ) {
+                    // If this assertion is a warning ignore any INFO messages
+                    if( printInfoMessages || itMessage->type != ResultWas::Info ) {
+                        stream << " '" << itMessage->message << "'";
+                        if ( ++itMessage != itEnd ) {
+                            Colour colourGuard( dimColour() );
+                            stream << " and";
+                        }
+                    }
+                }
+            }
+
+        private:
+            std::ostream& stream;
+            AssertionResult const& result;
+            std::vector<MessageInfo> messages;
+            std::vector<MessageInfo>::const_iterator itMessage;
+            bool printInfoMessages;
+            std::size_t counter;
+        };
+
+        void printTotals( const Totals& totals ) const {
+            if( totals.testCases.total() == 0 ) {
+                stream << "1..0 # Skipped: No tests ran.";
+            } else {
+                stream << "1.." << counter;
+            }
+        }
+    };
+
+#ifdef CATCH_IMPL
+    TAPReporter::~TAPReporter() {}
+#endif
+
+    CATCH_REGISTER_REPORTER( "tap", TAPReporter )
+
+} // end namespace Catch
+
+#endif // TWOBLUECUBES_CATCH_REPORTER_TAP_HPP_INCLUDED

tests/catch2/catch_reporter_teamcity.hpp

@@ -0,0 +1,220 @@
+/*
+ *  Created by Phil Nash on 19th December 2014
+ *  Copyright 2014 Two Blue Cubes Ltd. All rights reserved.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef TWOBLUECUBES_CATCH_REPORTER_TEAMCITY_HPP_INCLUDED
+#define TWOBLUECUBES_CATCH_REPORTER_TEAMCITY_HPP_INCLUDED
+
+// Don't #include any Catch headers here - we can assume they are already
+// included before this header.
+// This is not good practice in general but is necessary in this case so this
+// file can be distributed as a single header that works with the main
+// Catch single header.
+
+#include <cstring>
+
+#ifdef __clang__
+#   pragma clang diagnostic push
+#   pragma clang diagnostic ignored "-Wpadded"
+#endif
+
+namespace Catch {
+
+    struct TeamCityReporter : StreamingReporterBase<TeamCityReporter> {
+        TeamCityReporter( ReporterConfig const& _config )
+        :   StreamingReporterBase( _config )
+        {
+            m_reporterPrefs.shouldRedirectStdOut = true;
+        }
+
+        static std::string escape( std::string const& str ) {
+            std::string escaped = str;
+            replaceInPlace( escaped, "|", "||" );
+            replaceInPlace( escaped, "'", "|'" );
+            replaceInPlace( escaped, "\n", "|n" );
+            replaceInPlace( escaped, "\r", "|r" );
+            replaceInPlace( escaped, "[", "|[" );
+            replaceInPlace( escaped, "]", "|]" );
+            return escaped;
+        }
+        ~TeamCityReporter() override;
+
+        static std::string getDescription() {
+            return "Reports test results as TeamCity service messages";
+        }
+
+        void skipTest( TestCaseInfo const& /* testInfo */ ) override {
+        }
+
+        void noMatchingTestCases( std::string const& /* spec */ ) override {}
+
+        void testGroupStarting( GroupInfo const& groupInfo ) override {
+            StreamingReporterBase::testGroupStarting( groupInfo );
+            stream << "##teamcity[testSuiteStarted name='"
+                << escape( groupInfo.name ) << "']\n";
+        }
+        void testGroupEnded( TestGroupStats const& testGroupStats ) override {
+            StreamingReporterBase::testGroupEnded( testGroupStats );
+            stream << "##teamcity[testSuiteFinished name='"
+                << escape( testGroupStats.groupInfo.name ) << "']\n";
+        }
+
+
+        void assertionStarting( AssertionInfo const& ) override {}
+
+        bool assertionEnded( AssertionStats const& assertionStats ) override {
+            AssertionResult const& result = assertionStats.assertionResult;
+            if( !result.isOk() ) {
+
+                ReusableStringStream msg;
+                if( !m_headerPrintedForThisSection )
+                    printSectionHeader( msg.get() );
+                m_headerPrintedForThisSection = true;
+
+                msg << result.getSourceInfo() << "\n";
+
+                switch( result.getResultType() ) {
+                    case ResultWas::ExpressionFailed:
+                        msg << "expression failed";
+                        break;
+                    case ResultWas::ThrewException:
+                        msg << "unexpected exception";
+                        break;
+                    case ResultWas::FatalErrorCondition:
+                        msg << "fatal error condition";
+                        break;
+                    case ResultWas::DidntThrowException:
+                        msg << "no exception was thrown where one was expected";
+                        break;
+                    case ResultWas::ExplicitFailure:
+                        msg << "explicit failure";
+                        break;
+
+                    // We shouldn't get here because of the isOk() test
+                    case ResultWas::Ok:
+                    case ResultWas::Info:
+                    case ResultWas::Warning:
+                        CATCH_ERROR( "Internal error in TeamCity reporter" );
+                    // These cases are here to prevent compiler warnings
+                    case ResultWas::Unknown:
+                    case ResultWas::FailureBit:
+                    case ResultWas::Exception:
+                        CATCH_ERROR( "Not implemented" );
+                }
+                if( assertionStats.infoMessages.size() == 1 )
+                    msg << " with message:";
+                if( assertionStats.infoMessages.size() > 1 )
+                    msg << " with messages:";
+                for( auto const& messageInfo : assertionStats.infoMessages )
+                    msg << "\n  \"" << messageInfo.message << "\"";
+
+
+                if( result.hasExpression() ) {
+                    msg <<
+                        "\n  " << result.getExpressionInMacro() << "\n"
+                        "with expansion:\n" <<
+                        "  " << result.getExpandedExpression() << "\n";
+                }
+
+                if( currentTestCaseInfo->okToFail() ) {
+                    msg << "- failure ignore as test marked as 'ok to fail'\n";
+                    stream << "##teamcity[testIgnored"
+                           << " name='" << escape( currentTestCaseInfo->name )<< "'"
+                           << " message='" << escape( msg.str() ) << "'"
+                           << "]\n";
+                }
+                else {
+                    stream << "##teamcity[testFailed"
+                           << " name='" << escape( currentTestCaseInfo->name )<< "'"
+                           << " message='" << escape( msg.str() ) << "'"
+                           << "]\n";
+                }
+            }
+            stream.flush();
+            return true;
+        }
+
+        void sectionStarting( SectionInfo const& sectionInfo ) override {
+            m_headerPrintedForThisSection = false;
+            StreamingReporterBase::sectionStarting( sectionInfo );
+        }
+
+        void testCaseStarting( TestCaseInfo const& testInfo ) override {
+            m_testTimer.start();
+            StreamingReporterBase::testCaseStarting( testInfo );
+            stream << "##teamcity[testStarted name='"
+                << escape( testInfo.name ) << "']\n";
+            stream.flush();
+        }
+
+        void testCaseEnded( TestCaseStats const& testCaseStats ) override {
+            StreamingReporterBase::testCaseEnded( testCaseStats );
+            if( !testCaseStats.stdOut.empty() )
+                stream << "##teamcity[testStdOut name='"
+                    << escape( testCaseStats.testInfo.name )
+                    << "' out='" << escape( testCaseStats.stdOut ) << "']\n";
+            if( !testCaseStats.stdErr.empty() )
+                stream << "##teamcity[testStdErr name='"
+                    << escape( testCaseStats.testInfo.name )
+                    << "' out='" << escape( testCaseStats.stdErr ) << "']\n";
+            stream << "##teamcity[testFinished name='"
+                    << escape( testCaseStats.testInfo.name ) << "' duration='"
+                    << m_testTimer.getElapsedMilliseconds() << "']\n";
+            stream.flush();
+        }
+
+    private:
+        void printSectionHeader( std::ostream& os ) {
+            assert( !m_sectionStack.empty() );
+
+            if( m_sectionStack.size() > 1 ) {
+                os << getLineOfChars<'-'>() << "\n";
+
+                std::vector<SectionInfo>::const_iterator
+                it = m_sectionStack.begin()+1, // Skip first section (test case)
+                itEnd = m_sectionStack.end();
+                for( ; it != itEnd; ++it )
+                    printHeaderString( os, it->name );
+                os << getLineOfChars<'-'>() << "\n";
+            }
+
+            SourceLineInfo lineInfo = m_sectionStack.front().lineInfo;
+
+            if( !lineInfo.empty() )
+                os << lineInfo << "\n";
+            os << getLineOfChars<'.'>() << "\n\n";
+        }
+
+        // if string has a : in first line will set indent to follow it on
+        // subsequent lines
+        static void printHeaderString( std::ostream& os, std::string const& _string, std::size_t indent = 0 ) {
+            std::size_t i = _string.find( ": " );
+            if( i != std::string::npos )
+                i+=2;
+            else
+                i = 0;
+            os << Column( _string )
+                           .indent( indent+i)
+                           .initialIndent( indent ) << "\n";
+        }
+    private:
+        bool m_headerPrintedForThisSection = false;
+        Timer m_testTimer;
+    };
+
+#ifdef CATCH_IMPL
+    TeamCityReporter::~TeamCityReporter() {}
+#endif
+
+    CATCH_REGISTER_REPORTER( "teamcity", TeamCityReporter )
+
+} // end namespace Catch
+
+#ifdef __clang__
+#   pragma clang diagnostic pop
+#endif
+
+#endif // TWOBLUECUBES_CATCH_REPORTER_TEAMCITY_HPP_INCLUDED

tests/llvm-gcov.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+exec llvm-cov-7 gcov "$@"

tests/test-common.cc

@@ -0,0 +1,38 @@
+/*
+ *
+ * Conky, a system monitor, based on torsmo
+ *
+ * Any original torsmo code is licensed under the BSD license
+ *
+ * All code written since the fork of torsmo is licensed under the GPL
+ *
+ * Please see COPYING for details
+ *
+ * Copyright (c) 2005-2018 Brenden Matthews, Philip Kovacs, et. al.
+ *	(see AUTHORS)
+ * All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do
+                           // this in one cpp file
+
+#include "catch2/catch.hpp"
+
+#include <common.h>
+
+TEST_CASE("to_real_path becomes homedir", "[to_real_path]") {
+  REQUIRE(to_real_path("~/test") == std::string(getenv("HOME")) + "/test");
+}

tests/test-darwin.cc

@@ -0,0 +1,36 @@
+/*
+ *
+ * Conky, a system monitor, based on torsmo
+ *
+ * Any original torsmo code is licensed under the BSD license
+ *
+ * All code written since the fork of torsmo is licensed under the GPL
+ *
+ * Please see COPYING for details
+ *
+ * Copyright (c) 2005-2018 Brenden Matthews, Philip Kovacs, et. al.
+ *	(see AUTHORS)
+ * All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "catch2/catch.hpp"
+
+#include <darwin.h>
+
+TEST_CASE("get_entropy_avail returns 1", "[get_entropy_avail]") {
+  unsigned int unused = 0;
+  REQUIRE(get_entropy_avail(&unused) == 1);
+}

tests/test-linux.cc

@@ -0,0 +1,36 @@
+/*
+ *
+ * Conky, a system monitor, based on torsmo
+ *
+ * Any original torsmo code is licensed under the BSD license
+ *
+ * All code written since the fork of torsmo is licensed under the GPL
+ *
+ * Please see COPYING for details
+ *
+ * Copyright (c) 2005-2018 Brenden Matthews, Philip Kovacs, et. al.
+ *	(see AUTHORS)
+ * All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "catch2/catch.hpp"
+
+#include <linux.h>
+
+TEST_CASE("get_entropy_avail returns 0", "[get_entropy_avail]") {
+  unsigned int unused = 0;
+  REQUIRE(get_entropy_avail(&unused) == 0);
+}