# CMake Common Dashboard Script
#
# This script contains basic dashboard driver code common to all
# clients.
#
# Put this script in a directory such as "~/Dashboards/Scripts" or
# "c:/Dashboards/Scripts".  Create a file next to this script, say
# 'my_dashboard.cmake', with code of the following form:
#
#   # Client maintainer: me@mydomain.net
#   set(CTEST_SITE "machine.site")
#   set(CTEST_BUILD_NAME "Platform-Compiler")
#   set(CTEST_BUILD_CONFIGURATION Debug)
#   set(CTEST_CMAKE_GENERATOR "Unix Makefiles")
#   include(${CTEST_SCRIPT_DIRECTORY}/cmake_common.cmake)
#
# Then run a scheduled task (cron job) with a command line such as
#
#   ctest -S ~/Dashboards/Scripts/my_dashboard.cmake -V
#
# By default the source and build trees will be placed in the path
# "../My Tests/" relative to your script location.
#
# The following variables may be set before including this script
# to configure it:
#
#   dashboard_model       = Nightly | Experimental | Continuous
#   dashboard_root_name   = Change name of "My Tests" directory
#   dashboard_source_name = Name of source directory (CMake)
#   dashboard_binary_name = Name of binary directory (CMake-build)
#   dashboard_cache       = Initial CMakeCache.txt file content
#   dashboard_bootstrap   = Bootstrap parallel level (0 to disable)
#   dashboard_do_coverage = True to enable coverage (ex: gcov)
#   dashboard_do_memcheck = True to enable memcheck (ex: valgrind)
#   CTEST_GIT_COMMAND     = path to git command-line client
#   CTEST_BUILD_FLAGS     = build tool arguments (ex: -j2)
#   CTEST_DASHBOARD_ROOT  = Where to put source and build trees
#   CTEST_TEST_CTEST      = Whether to run long CTestTest* tests
#   CTEST_TEST_TIMEOUT    = Per-test timeout length
#   CTEST_TEST_ARGS       = ctest_test args (ex: PARALLEL_LEVEL 4)
#   CMAKE_MAKE_PROGRAM    = Path to "make" tool to use
#
# Options to configure Git:
#   dashboard_git_url      = Custom git clone url
#   dashboard_git_branch   = Custom remote branch to track
#   dashboard_git_crlf     = Value of core.autocrlf for repository
#
# For Makefile generators the script may be executed from an
# environment already configured to use the desired compilers.
# Alternatively the environment may be set at the top of the script:
#
#   set(ENV{CC}  /path/to/cc)   # C compiler
#   set(ENV{CXX} /path/to/cxx)  # C++ compiler
#   set(ENV{FC}  /path/to/fc)   # Fortran compiler (optional)
#   set(ENV{LD_LIBRARY_PATH} /path/to/vendor/lib) # (if necessary)

#=============================================================================
# Copyright 2010-2012 Kitware, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
#
# * 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.
#
# * Neither the name of Kitware, Inc. 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.
#=============================================================================

cmake_minimum_required(VERSION 2.8.2 FATAL_ERROR)

set(CTEST_PROJECT_NAME CMake)
set(dashboard_user_home "$ENV{HOME}")

# Select the top dashboard directory.
if(NOT DEFINED dashboard_root_name)
  set(dashboard_root_name "My Tests")
endif()
if(NOT DEFINED CTEST_DASHBOARD_ROOT)
  get_filename_component(CTEST_DASHBOARD_ROOT "${CTEST_SCRIPT_DIRECTORY}/../${dashboard_root_name}" ABSOLUTE)
endif()

# Select the model (Nightly, Experimental, Continuous).
if(NOT DEFINED dashboard_model)
  set(dashboard_model Nightly)
endif()
if(NOT "${dashboard_model}" MATCHES "^(Nightly|Experimental|Continuous)$")
  message(FATAL_ERROR "dashboard_model must be Nightly, Experimental, or Continuous")
endif()

# Default to a Debug build.
if(NOT DEFINED CTEST_BUILD_CONFIGURATION)
  set(CTEST_BUILD_CONFIGURATION Debug)
endif()

# Choose CTest reporting mode.
if(dashboard_bootstrap)
  # Launchers do not work during bootstrap: no ctest available.
  set(CTEST_USE_LAUNCHERS 0)
elseif(NOT "${CTEST_CMAKE_GENERATOR}" MATCHES "Make|Ninja")
  # Launchers work only with Makefile and Ninja generators.
  set(CTEST_USE_LAUNCHERS 0)
elseif(NOT DEFINED CTEST_USE_LAUNCHERS)
  # The setting is ignored by CTest < 2.8 so we need no version test.
  set(CTEST_USE_LAUNCHERS 1)
endif()

# Configure testing.
if(NOT DEFINED CTEST_TEST_CTEST)
  set(CTEST_TEST_CTEST 1)
endif()
if(NOT CTEST_TEST_TIMEOUT)
  set(CTEST_TEST_TIMEOUT 1500)
endif()

# Select Git source to use.
if(NOT DEFINED dashboard_git_url)
  set(dashboard_git_url "https://gitlab.kitware.com/cmake/cmake.git")
endif()
if(NOT DEFINED dashboard_git_branch)
  if("${dashboard_model}" STREQUAL "Nightly")
    set(dashboard_git_branch stage/master/nightly/latest)
  else()
    set(dashboard_git_branch stage/master/head)
  endif()
else()
  # map values from outdated client scripts
  if(dashboard_git_branch STREQUAL "nightly-master")
    set(dashboard_git_branch follow/master/nightly)
  elseif(dashboard_git_branch STREQUAL "nightly")
    set(dashboard_git_branch stage/master/nightly/latest)
  elseif(dashboard_git_branch STREQUAL "next")
    set(dashboard_git_branch stage/master/head)
  endif()
endif()
if(NOT DEFINED dashboard_git_crlf)
  if(UNIX)
    set(dashboard_git_crlf false)
  else(UNIX)
    set(dashboard_git_crlf true)
  endif(UNIX)
endif()

# Look for a GIT command-line client.
if(NOT DEFINED CTEST_GIT_COMMAND)
  set(git_names git git.cmd)

  # First search the PATH.
  find_program(CTEST_GIT_COMMAND NAMES ${git_names})

  if(CMAKE_HOST_WIN32)
    # Now look for installations in Git/ directories under typical installation
    # prefixes on Windows.  Exclude PATH from this search because VS 2017's
    # command prompt happens to have a PATH entry with a Git/ subdirectory
    # containing a minimal git not meant for general use.
    find_program(CTEST_GIT_COMMAND
      NAMES ${git_names}
      PATH_SUFFIXES Git/cmd Git/bin
      NO_SYSTEM_ENVIRONMENT_PATH
      )
  endif()
endif()
if(NOT CTEST_GIT_COMMAND)
  message(FATAL_ERROR "CTEST_GIT_COMMAND not available!")
endif()

# Select a source directory name.
if(NOT DEFINED CTEST_SOURCE_DIRECTORY)
  if(DEFINED dashboard_source_name)
    set(CTEST_SOURCE_DIRECTORY ${CTEST_DASHBOARD_ROOT}/${dashboard_source_name})
  else()
    set(CTEST_SOURCE_DIRECTORY ${CTEST_DASHBOARD_ROOT}/CMake)
  endif()
endif()

# Select a build directory name.
if(NOT DEFINED CTEST_BINARY_DIRECTORY)
  if(DEFINED dashboard_binary_name)
    set(CTEST_BINARY_DIRECTORY ${CTEST_DASHBOARD_ROOT}/${dashboard_binary_name})
  else()
    set(CTEST_BINARY_DIRECTORY ${CTEST_SOURCE_DIRECTORY}-build)
  endif()
endif()

macro(dashboard_git)
  execute_process(
    COMMAND ${CTEST_GIT_COMMAND} ${ARGN}
    WORKING_DIRECTORY "${CTEST_SOURCE_DIRECTORY}"
    OUTPUT_VARIABLE dashboard_git_output
    ERROR_VARIABLE dashboard_git_output
    RESULT_VARIABLE dashboard_git_failed
    OUTPUT_STRIP_TRAILING_WHITESPACE
    ERROR_STRIP_TRAILING_WHITESPACE
    )
endmacro()

# Delete source tree if it is incompatible with current VCS.
if(EXISTS ${CTEST_SOURCE_DIRECTORY})
  if(NOT EXISTS "${CTEST_SOURCE_DIRECTORY}/.git")
    set(vcs_refresh "because it is not managed by git.")
  else()
    execute_process(
      COMMAND ${CTEST_GIT_COMMAND} reset --hard
      WORKING_DIRECTORY "${CTEST_SOURCE_DIRECTORY}"
      OUTPUT_VARIABLE output
      ERROR_VARIABLE output
      RESULT_VARIABLE failed
      )
    if(failed)
      set(vcs_refresh "because its .git may be corrupted.")
    endif()
  endif()
  if(vcs_refresh AND "${CTEST_SOURCE_DIRECTORY}" MATCHES "/CMake[^/]*")
    message("Deleting source tree\n  ${CTEST_SOURCE_DIRECTORY}\n${vcs_refresh}")
    file(REMOVE_RECURSE "${CTEST_SOURCE_DIRECTORY}")
  endif()
endif()

# Upstream non-head refs to treat like branches.
set(dashboard_git_extra_branches
  stage/master/head              # topics staged on master continuously
  stage/master/nightly/latest    # updated nightly to stage/master/head
  follow/master/nightly          # updated nightly to master
  )

# Support initial checkout if necessary.
if(NOT EXISTS "${CTEST_SOURCE_DIRECTORY}"
    AND NOT DEFINED CTEST_CHECKOUT_COMMAND)
  # Generate an initial checkout script.
  get_filename_component(_name "${CTEST_SOURCE_DIRECTORY}" NAME)
  set(ctest_checkout_script ${CTEST_DASHBOARD_ROOT}/${_name}-init.cmake)
  file(WRITE ${ctest_checkout_script} "# git repo init script for ${_name}
execute_process(
  COMMAND \"${CTEST_GIT_COMMAND}\" clone -n -- \"${dashboard_git_url}\"
          \"${CTEST_SOURCE_DIRECTORY}\"
  )
if(EXISTS \"${CTEST_SOURCE_DIRECTORY}/.git\")
  execute_process(
    COMMAND \"${CTEST_GIT_COMMAND}\" config core.autocrlf ${dashboard_git_crlf}
    WORKING_DIRECTORY \"${CTEST_SOURCE_DIRECTORY}\"
    )
  foreach(b ${dashboard_git_extra_branches})
    execute_process(
      COMMAND \"${CTEST_GIT_COMMAND}\" config --add remote.origin.fetch +refs/\${b}:refs/remotes/origin/\${b}
      WORKING_DIRECTORY \"${CTEST_SOURCE_DIRECTORY}\"
      )
  endforeach()
  execute_process(
    COMMAND \"${CTEST_GIT_COMMAND}\" fetch
    WORKING_DIRECTORY \"${CTEST_SOURCE_DIRECTORY}\"
    )
  foreach(b ${dashboard_git_extra_branches})
    execute_process(
      COMMAND \"${CTEST_GIT_COMMAND}\" branch \${b} origin/\${b}
      WORKING_DIRECTORY \"${CTEST_SOURCE_DIRECTORY}\"
      )
    execute_process(
      COMMAND \"${CTEST_GIT_COMMAND}\" config branch.\${b}.remote origin
      WORKING_DIRECTORY \"${CTEST_SOURCE_DIRECTORY}\"
      )
    execute_process(
      COMMAND \"${CTEST_GIT_COMMAND}\" config branch.\${b}.merge refs/\${b}
      WORKING_DIRECTORY \"${CTEST_SOURCE_DIRECTORY}\"
      )
  endforeach()
  execute_process(
    COMMAND \"${CTEST_GIT_COMMAND}\" checkout ${dashboard_git_branch}
    WORKING_DIRECTORY \"${CTEST_SOURCE_DIRECTORY}\"
    )
endif()
")
  set(CTEST_CHECKOUT_COMMAND "\"${CMAKE_COMMAND}\" -P \"${ctest_checkout_script}\"")
elseif(EXISTS "${CTEST_SOURCE_DIRECTORY}/.git")
  # Upstream URL.
  dashboard_git(config --get remote.origin.url)
  if(NOT dashboard_git_output STREQUAL "${dashboard_git_url}")
    dashboard_git(config remote.origin.url "${dashboard_git_url}")
  endif()

  # Local refs for remote branches.
  set(added_branches 0)
  foreach(b ${dashboard_git_extra_branches})
    dashboard_git(rev-parse --verify -q refs/remotes/origin/${b})
    if(dashboard_git_failed)
      dashboard_git(config --add remote.origin.fetch +refs/${b}:refs/remotes/origin/${b})
      set(added_branches 1)
    endif()
  endforeach()
  if(added_branches)
    dashboard_git(fetch origin)
  endif()

  # Local branches.
  foreach(b ${dashboard_git_extra_branches})
    dashboard_git(rev-parse --verify -q refs/heads/${b})
    if(dashboard_git_failed)
      dashboard_git(branch ${b} origin/${b})
      dashboard_git(config branch.${b}.remote origin)
      dashboard_git(config branch.${b}.merge refs/${b})
    endif()
  endforeach()

  # Local checkout.
  dashboard_git(symbolic-ref HEAD)
  if(NOT dashboard_git_output STREQUAL "${dashboard_git_branch}")
    dashboard_git(checkout ${dashboard_git_branch})
    if(dashboard_git_failed)
      message(FATAL_ERROR "Failed to checkout branch ${dashboard_git_branch}:\n${dashboard_git_output}")
    endif()
  endif()
endif()

# Enable bootstrap build?
if(NOT DEFINED CTEST_CONFIGURE_COMMAND)
  if("${dashboard_bootstrap}" GREATER 1)
    set(CTEST_CONFIGURE_COMMAND "\"${CTEST_SOURCE_DIRECTORY}/bootstrap\" --parallel=${dashboard_bootstrap}")
  elseif(dashboard_bootstrap)
    set(CTEST_CONFIGURE_COMMAND "\"${CTEST_SOURCE_DIRECTORY}/bootstrap\"")
  endif()
endif()

#-----------------------------------------------------------------------------

# Send the main script as a note.
list(APPEND CTEST_NOTES_FILES
  "${CTEST_SCRIPT_DIRECTORY}/${CTEST_SCRIPT_NAME}"
  "${CMAKE_CURRENT_LIST_FILE}"
  )

# Check for required variables.
foreach(req
    CTEST_CMAKE_GENERATOR
    CTEST_SITE
    CTEST_BUILD_NAME
    )
  if(NOT DEFINED ${req})
    message(FATAL_ERROR "The containing script must set ${req}")
  endif()
endforeach(req)

# Print summary information.
set(vars "")
foreach(v
    CTEST_SITE
    CTEST_BUILD_NAME
    CTEST_SOURCE_DIRECTORY
    CTEST_BINARY_DIRECTORY
    CTEST_CMAKE_GENERATOR
    CTEST_BUILD_CONFIGURATION
    CTEST_GIT_COMMAND
    CTEST_CHECKOUT_COMMAND
    CTEST_CONFIGURE_COMMAND
    CTEST_SCRIPT_DIRECTORY
    CTEST_USE_LAUNCHERS
    )
  set(vars "${vars}  ${v}=[${${v}}]\n")
endforeach(v)
message("Dashboard script configuration:\n${vars}\n")

# Avoid non-ascii characters in tool output.
set(ENV{LC_ALL} C)

# Helper macro to write the initial cache.
macro(write_cache)
  set(cache_build_type "")
  set(cache_make_program "")
  if(CTEST_CMAKE_GENERATOR MATCHES "Make|Ninja")
    set(cache_build_type CMAKE_BUILD_TYPE:STRING=${CTEST_BUILD_CONFIGURATION})
    if(CMAKE_MAKE_PROGRAM)
      set(cache_make_program CMAKE_MAKE_PROGRAM:FILEPATH=${CMAKE_MAKE_PROGRAM})
    endif()
  endif()
  file(WRITE ${CTEST_BINARY_DIRECTORY}/CMakeCache.txt "
SITE:STRING=${CTEST_SITE}
BUILDNAME:STRING=${CTEST_BUILD_NAME}
CTEST_TEST_CTEST:BOOL=${CTEST_TEST_CTEST}
CTEST_USE_LAUNCHERS:BOOL=${CTEST_USE_LAUNCHERS}
DART_TESTING_TIMEOUT:STRING=${CTEST_TEST_TIMEOUT}
GIT_EXECUTABLE:FILEPATH=${CTEST_GIT_COMMAND}
${cache_build_type}
${cache_make_program}
${dashboard_cache}
")
endmacro(write_cache)

# Start with a fresh build tree.
if(EXISTS "${CTEST_BINARY_DIRECTORY}" AND
    NOT "${CTEST_SOURCE_DIRECTORY}" STREQUAL "${CTEST_BINARY_DIRECTORY}")
  message("Clearing build tree...")
  ctest_empty_binary_directory(${CTEST_BINARY_DIRECTORY})
endif()
file(MAKE_DIRECTORY "${CTEST_BINARY_DIRECTORY}")

set(dashboard_continuous 0)
if("${dashboard_model}" STREQUAL "Continuous")
  set(dashboard_continuous 1)
endif()

# CTest 2.6 crashes with message() after ctest_test.
macro(safe_message)
  if(NOT "${CMAKE_VERSION}" VERSION_LESS 2.8 OR NOT safe_message_skip)
    message(${ARGN})
  endif()
endmacro()

if(COMMAND dashboard_hook_init)
  dashboard_hook_init()
endif()

set(dashboard_done 0)
while(NOT dashboard_done)
  if(dashboard_continuous)
    set(START_TIME ${CTEST_ELAPSED_TIME})
  endif()
  set(ENV{HOME} "${dashboard_user_home}")

  # Start a new submission.
  if(COMMAND dashboard_hook_start)
    dashboard_hook_start()
  endif()
  ctest_start(${dashboard_model})
  if(COMMAND dashboard_hook_started)
    dashboard_hook_started()
  endif()

  # Always build if the tree is fresh.
  set(dashboard_fresh 0)
  if(NOT EXISTS "${CTEST_BINARY_DIRECTORY}/CMakeCache.txt")
    set(dashboard_fresh 1)
    safe_message("Starting fresh build...")
    write_cache()
  endif()

  # Look for updates.
  ctest_update(RETURN_VALUE count)
  set(CTEST_CHECKOUT_COMMAND) # checkout on first iteration only
  safe_message("Found ${count} changed files")
  if(dashboard_fresh OR NOT dashboard_continuous OR count GREATER 0)
    ctest_configure(${dashboard_configure_args})
    ctest_read_custom_files(${CTEST_BINARY_DIRECTORY})

    if(COMMAND dashboard_hook_build)
      dashboard_hook_build()
    endif()
    ctest_build()

    if(COMMAND dashboard_hook_test)
      dashboard_hook_test()
    endif()
    if(NOT dashboard_no_test)
      ctest_test(${CTEST_TEST_ARGS})
    endif()
    set(safe_message_skip 1) # Block further messages

    if(dashboard_do_coverage)
      ctest_coverage()
    endif()
    if(dashboard_do_memcheck)
      ctest_memcheck(${CTEST_TEST_ARGS})
    endif()
    if(NOT dashboard_no_submit)
      ctest_submit()
    endif()
    if(COMMAND dashboard_hook_end)
      dashboard_hook_end()
    endif()
  endif()

  if(dashboard_continuous)
    # Delay until at least 5 minutes past START_TIME
    ctest_sleep(${START_TIME} 300 ${CTEST_ELAPSED_TIME})
    if(${CTEST_ELAPSED_TIME} GREATER 43200)
      set(dashboard_done 1)
    endif()
  else()
    # Not continuous, so we are done.
    set(dashboard_done 1)
  endif()
endwhile()

#-----------------------------------------------------------------------------
# Run KWSys dashboard script too.
get_filename_component(cmake_common_dir "${CMAKE_CURRENT_LIST_FILE}" PATH)
if(EXISTS ${cmake_common_dir}/kwsys_common.cmake
    AND "${dashboard_model}" MATCHES "^(Nightly|Experimental)$"
    AND NOT dashboard_no_KWSys)
  if(COMMAND dashboard_hook_KWSys)
    dashboard_hook_KWSys()
  endif()
  foreach(dir source binary)
    string(TOUPPER "${dir}" DIR)
    if("${dashboard_${dir}_name}" MATCHES "^(.*)[Cc][Mm][Aa][Kk][Ee](.*)$")
      set(KWSys_${dir}_name "${CMAKE_MATCH_1}KWSys${CMAKE_MATCH_2}")
      unset(CTEST_${DIR}_DIRECTORY)
    elseif("${CTEST_${DIR}_DIRECTORY}" MATCHES "^(.*)[Cc][Mm][Aa][Kk][Ee](.*)$")
      set(CTEST_${DIR}_DIRECTORY "${CMAKE_MATCH_1}KWSys${CMAKE_MATCH_2}")
    else()
      unset(CTEST_${DIR}_DIRECTORY)
    endif()
  endforeach()
  unset(CTEST_CHECKOUT_COMMAND)
  unset(CTEST_CONFIGURE_COMMAND)
  if(NOT DEFINED KWSys_git_branch)
    if(dashboard_git_branch STREQUAL "master")
      set(KWSys_git_branch master)
    else()
      set(KWSys_git_branch stage/master/nightly/latest)
    endif()
  endif()
  include(${cmake_common_dir}/kwsys_common.cmake)
endif()