#!-------------------------------------------------------------------------------------------------!
#!   CP2K: A general program to perform molecular dynamics simulations                             !
#!   Copyright 2000-2026 CP2K developers group <https://cp2k.org>                                  !
#!                                                                                                 !
#!   SPDX-License-Identifier: GPL-2.0-or-later                                                     !
#!-------------------------------------------------------------------------------------------------!

# LCOV - COVERAGE REPORTS GENERATION
find_program(
  LCOV_EXE lcov
  DOC "path to the lcov executable (required to generate coverage reports)")

find_program(
  GENHTML_EXE genhtml
  DOC "path to the genhtml executable (required to generate HTML coverage reports)"
)

if(NOT TARGET cov-info)
  add_custom_target(
    cov-info
    COMMAND
      "${LCOV_EXE}" --directory "${CMAKE_BINARY_DIR}" --base-dir
      "${CMAKE_SOURCE_DIR}" --no-external --capture --output-file coverage.info
    COMMAND "${LCOV_EXE}" --list coverage.info
    VERBATIM
    BYPRODUCTS coverage.info
    COMMENT "Generate coverage.info using lcov")
endif()

if(NOT TARGET cpv-genhtml)
  add_custom_target(
    cov-genhtml
    COMMAND "${GENHTML_EXE}" coverage.info --output-directory cov-html
    COMMENT
      "Generate a HTML-based coverage report using lcov in ${CMAKE_BINARY_DIR}/cov-html"
    VERBATIM) # Note: this directory will not be cleaned by `cmake --build .. --
              # clean`
  add_dependencies(cov-genhtml cov-info)
endif()