Format CMake files, ignore generated files and don't copy header

.gitignore

@@ -9,8 +9,8 @@ bin/
 *.a
 *.so*
 *.zip
+/*.cmake
 cmake_install.cmake
-CPack*Config.cmake
 CTestTestfile.cmake
 CMakeCache.txt
 CMakeFiles

CMakeLists.txt

@@ -142,9 +142,10 @@ endif ()
 set_target_properties(cppformat PROPERTIES
   VERSION ${CPPFORMAT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR})
 
-if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.gitignore")
+set(gitignore ${CMAKE_CURRENT_SOURCE_DIR}/.gitignore)
+if (EXISTS ${gitignore})
   # Get the list of ignored files from .gitignore.
-  file (STRINGS ".gitignore" lines)
+  file (STRINGS ${gitignore} lines)
   LIST(REMOVE_ITEM lines /doc/html)
   foreach (line ${lines})
     string(REPLACE "." "[.]" line "${line}")
@@ -156,8 +157,8 @@ if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.gitignore")
 
   set(CPACK_SOURCE_GENERATOR ZIP)
   set(CPACK_SOURCE_IGNORE_FILES ${ignored_files})
-  set(CPACK_SOURCE_PACKAGE_FILE_NAME "cppformat-${CPPFORMAT_VERSION}")
-  set(CPACK_PACKAGE_NAME "cppformat")
+  set(CPACK_SOURCE_PACKAGE_FILE_NAME cppformat-${CPPFORMAT_VERSION})
+  set(CPACK_PACKAGE_NAME cppformat)
   set(CPACK_RESOURCE_FILE_README ${FORMAT_SOURCE_DIR}/README.rst)
   include(CPack)
 endif ()
@@ -165,44 +166,38 @@ endif ()
 # Install targets.
 if (FMT_INSTALL)
   include(CMakePackageConfigHelpers)
-  set(config_install_dir "lib/cmake/cppformat")
-  set(version_config "${CMAKE_CURRENT_BINARY_DIR}/cppformatConfigVersion.cmake")
-  set(project_config "${CMAKE_CURRENT_BINARY_DIR}/cppformatConfig.cmake")
-  set(targets_export_name "cppformatTargets")
+  set(config_install_dir lib/cmake/cppformat)
+  set(version_config ${CMAKE_CURRENT_BINARY_DIR}/cppformat-config-version.cmake)
+  set(project_config ${CMAKE_CURRENT_BINARY_DIR}/cppformat-config.cmake)
+  set(targets_export_name cppformat-targets)
 
-  set(FMT_LIB_DIR "lib" CACHE STRING
+  set(FMT_LIB_DIR lib CACHE STRING
     "Installation directory for libraries, relative to ${CMAKE_INSTALL_PREFIX}.")
 
-  # copy the header into the build directory to mimic the installed tree
-  configure_file("format.h" "cppformat/format.h" COPYONLY)
-  # add the include directories for both build and install tree
+  # Add the include directories for both build and install tree.
   target_include_directories(
     cppformat PUBLIC
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-    $<INSTALL_INTERFACE:include>
-  )
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+    $<INSTALL_INTERFACE:include>)
 
-  # generate the version, config and target files into the build directory
+  # Generate the version, config and target files into the build directory.
   write_basic_package_version_file(
-    "${version_config}"
+    ${version_config}
     VERSION ${CPPFORMAT_VERSION}
-    COMPATIBILITY AnyNewerVersion
-  )
+    COMPATIBILITY AnyNewerVersion)
   configure_package_config_file(
-    "support/cmake/cppformatConfig.cmake.in"
-    "${project_config}"
-    INSTALL_DESTINATION "${config_install_dir}"
-  )
-  export(TARGETS cppformat FILE "${targets_export_name}.cmake")
+    support/cmake/cppformat-config.cmake.in
+    ${project_config}
+    INSTALL_DESTINATION ${config_install_dir})
+  export(TARGETS cppformat FILE ${targets_export_name}.cmake)
 
-  # install version, config and target files
+  # Install version, config and target files.
   install(
-      FILES "${project_config}" "${version_config}"
-      DESTINATION "${config_install_dir}"
-  )
-  install(EXPORT "${targets_export_name}" DESTINATION "${config_install_dir}")
-
-  # install the library and the include file
-  install(TARGETS cppformat EXPORT "${targets_export_name}" DESTINATION "${FMT_LIB_DIR}")
-  install(FILES format.h DESTINATION "include/cppformat")
+    FILES ${project_config} ${version_config}
+    DESTINATION ${config_install_dir})
+  install(EXPORT ${targets_export_name} DESTINATION ${config_install_dir})
+
+  # Install the library and the include file.
+  install(TARGETS cppformat EXPORT ${targets_export_name} DESTINATION ${FMT_LIB_DIR})
+  install(FILES format.h DESTINATION include/cppformat)
 endif ()

support/cmake/cppformat-config.cmake.in

+@PACKAGE_INIT@
+
+include(${CMAKE_CURRENT_LIST_DIR}/@targets_export_name@.cmake)
+check_required_components(cppformat)

support/cmake/cppformatConfig.cmake.in

-@PACKAGE_INIT@
-
-include("${CMAKE_CURRENT_LIST_DIR}/@targets_export_name@.cmake")
-check_required_components("cppformat")