[cmake] Refactor RadiumCoverage.

Author: dlyr

cmake/RadiumCoverage.cmake

@@ -7,18 +7,23 @@ if(NOT LLVM_PROFDATA_PATH)
     message(FATAL_ERROR "llvm-profdata not found! Aborting.")
 endif()
 
-set(PROF_DIR ${CMAKE_BINARY_DIR}/llvm-cov/prof)
-set(REPORT_DIR ${CMAKE_BINARY_DIR}/llvm-cov/report)
-set(TEST_ENV_VAR "LLVM_PROFILE_FILE=${PROF_DIR}/unittests/coverage-%Nm-%p.profraw")
+set(PROF_DIR ${CMAKE_BINARY_DIR}/coverage/profiling)
+set(REPORT_DIR ${CMAKE_BINARY_DIR}/coverage/report)
+set(TEST_ENV_VAR "LLVM_PROFILE_FILE=${PROF_DIR}/unittests/coverage-%m-%p.profraw")
 
 function(radium_setup_coverage_targets)
+    make_directory(${REPORT_DIR})
+    make_directory(${PROF_DIR})
+
+    add_custom_target(
+        coverage_delete COMMAND find ${PROF_DIR} -name \"*.profraw\" -delete
+        COMMAND find ${PROF_DIR} -name \"*.profdata\" -delete
+    )
+    add_custom_target(coverage_delete_report COMMAND rm -rf ${REPORT_DIR})
+    add_custom_target(coverage_run COMMAND ${CMAKE_CTEST_COMMAND})
     add_custom_target(
-        llvm_coverage
-        COMMAND find ${PROF_DIR} -name \"*.profraw\" -delete
-        COMMAND rm -rf ${REPORT_DIR}
-        COMMAND ${CMAKE_CTEST_COMMAND}
-        COMMAND ${LLVM_PROFDATA_PATH} merge -sparse -o ${PROF_DIR}/coverage.profdata `find
-                ${PROF_DIR} -name \"*.profraw\"`
+        coverage_merge COMMAND ${LLVM_PROFDATA_PATH} merge -sparse -o ${PROF_DIR}/coverage.profdata
+                               `find ${PROF_DIR} -name \"*.profraw\"`
     )
 
     # prevent flags on catch2 and examples, add to specific targets
@@ -30,34 +35,43 @@ function(radium_setup_coverage_targets)
             target_compile_options(
                 ${TARGET} PRIVATE -fprofile-instr-generate -fcoverage-mapping -O0 -g
             )
-            target_link_options(${TARGET} PRIVATE -fprofile-instr-generate -fcoverage-mapping)
-            if(NOT ${TARGET} MATCHES "unittests")
-                list(APPEND LLVM_OBJS "--object"
-                     "$<PATH:RELATIVE_PATH,$<TARGET_FILE:${TARGET}>,${CMAKE_BINARY_DIR}>"
-                )
-            endif()
+            target_link_options(${TARGET} PRIVATE -fprofile-instr-generate)
+            list(APPEND LLVM_OBJS "-object"
+                 "$<PATH:RELATIVE_PATH,$<TARGET_FILE:${TARGET}>,${CMAKE_BINARY_DIR}>"
+            )
 
-            add_dependencies(llvm_coverage ${TARGET})
+            add_dependencies(coverage_run ${TARGET})
 
         endif()
     endforeach()
 
-    set(LLVM_COV
-        ${LLVM_COV_PATH}
-        show
-        $<TARGET_FILE:unittests>
-        ${LLVM_OBJS}
-        -instr-profile=${PROF_DIR}/coverage.profdata
-        -format=html
-        -output-dir=${REPORT_DIR}
-        -show-line-counts-or-regions
-        -show-directory-coverage
-        -Xdemangler
-        c++filt
-        -Xdemangler
-        -n
-        ${CMAKE_CURRENT_SOURCE_DIR}
+    add_custom_target(
+        coverage_report
+        COMMAND
+            ${LLVM_COV_PATH} show
+            $<PATH:RELATIVE_PATH,$<TARGET_FILE:unittests>,${CMAKE_BINARY_DIR}> ${LLVM_OBJS}
+            -instr-profile=${PROF_DIR}/coverage.profdata -format=html -output-dir=${REPORT_DIR}
+            -ignore-filename-regex="catch2" -show-line-counts-or-regions -show-directory-coverage
+            -Xdemangler c++filt -Xdemangler -n -sources ${CMAKE_CURRENT_SOURCE_DIR}
+    )
+    add_custom_target(
+        coverage_export
+        COMMAND
+            ${LLVM_COV_PATH} export
+            $<PATH:RELATIVE_PATH,$<TARGET_FILE:unittests>,${CMAKE_BINARY_DIR}> # ${LLVM_OBJS}
+            -instr-profile=${PROF_DIR}/coverage.profdata -ignore-filename-regex="catch2" -sources
+            ${CMAKE_CURRENT_SOURCE_DIR} -format=lcov > ${CMAKE_BINARY_DIR}/coverage.txt
+    )
+
+    add_custom_target(
+        coverage
+        COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} --target coverage_delete
+        COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} --target coverage_delete_report
+        COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} --target coverage_run
+        COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} --target coverage_merge
+        COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} --target coverage_report
+        COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} --target coverage_export
+        COMMENT "Running full coverage pipeline"
     )
-    add_custom_command(TARGET llvm_coverage POST_BUILD COMMAND ${LLVM_COV})
 
 endfunction()