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ENH: Generalize AddExternalProject step creation

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This creates function 'add_external_project_step' to centralize creation
of external project steps.  Users may call it to add custom steps to
external project builds.
This commit is contained in:
Brad King
2009-03-30 11:36:32 -04:00
parent c45c862ef4
commit d2175580e7
2 changed files with 90 additions and 1 deletions
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82
Modules/AddExternalProject.cmake
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@@ -15,6 +15,7 @@ function(_aep_parse_arguments f name ns args)
set(key)
foreach(arg IN LISTS args)
if(arg MATCHES "^[A-Z][A-Z_][A-Z_]+$" AND
NOT ((arg STREQUAL "${key}") AND (key STREQUAL "COMMAND")) AND
NOT arg MATCHES "^(TRUE|FALSE)$")
# Keyword
set(key "${arg}")
@@ -158,6 +159,87 @@ function(mkdir d)
endif()
endfunction(mkdir)
# Pre-compute a regex to match known keywords.
set(_aep_keyword_regex "^(")
set(_aep_keyword_sep)
foreach(key IN ITEMS
COMMAND
COMMENT
DEPENDEES
DEPENDERS
DEPENDS
SYMBOLIC
WORKING_DIRECTORY
)
set(_aep_keyword_regex "${_aep_keyword_regex}${_aep_keyword_sep}${key}")
set(_aep_keyword_sep "|")
endforeach(key)
set(_aep_keyword_regex "${_aep_keyword_regex})$")
set(_aep_keyword_sep)
set(_aep_keywords_add_external_project_step "${_aep_keyword_regex}")
function(add_external_project_step name step)
get_external_project_directories(base_dir build_dir downloads_dir install_dir
sentinels_dir source_dir tmp_dir)
add_custom_command(APPEND
OUTPUT ${sentinels_dir}/${name}-complete
DEPENDS ${sentinels_dir}/${name}-${step}
)
_aep_parse_arguments(add_external_project_step
${name} AEP_${step}_ "${ARGN}")
# Steps depending on this step.
get_property(dependers TARGET ${name} PROPERTY AEP_${step}_DEPENDERS)
foreach(depender IN LISTS dependers)
add_custom_command(APPEND
OUTPUT ${sentinels_dir}/${name}-${depender}
DEPENDS ${sentinels_dir}/${name}-${step}
)
endforeach()
# Dependencies on files.
get_property(depends TARGET ${name} PROPERTY AEP_${step}_DEPENDS)
# Dependencies on steps.
get_property(dependees TARGET ${name} PROPERTY AEP_${step}_DEPENDEES)
foreach(dependee IN LISTS dependees)
list(APPEND depends ${sentinels_dir}/${name}-${dependee})
endforeach()
# The command to run.
get_property(command TARGET ${name} PROPERTY AEP_${step}_COMMAND)
if(command)
set(comment "Performing ${step} step for '${name}'")
else()
set(comment "No ${step} step for '${name}'")
endif()
get_property(work_dir TARGET ${name} PROPERTY AEP_${step}_WORKING_DIRECTORY)
# Custom comment?
get_property(comment_set TARGET ${name} PROPERTY AEP_${step}_COMMENT SET)
if(comment_set)
get_property(comment TARGET ${name} PROPERTY AEP_${step}_COMMENT)
endif()
# Run every time?
get_property(symbolic TARGET ${name} PROPERTY AEP_${step}_SYMBOLIC)
if(symbolic)
set_property(SOURCE ${sentinels_dir}/${name}-${step} PROPERTY SYMBOLIC 1)
set(touch)
else()
set(touch ${CMAKE_COMMAND} -E touch ${sentinels_dir}/${name}-${step})
endif()
add_custom_command(
OUTPUT ${sentinels_dir}/${name}-${step}
COMMENT ${comment}
COMMAND ${command}
COMMAND ${touch}
DEPENDS ${depends}
WORKING_DIRECTORY ${work_dir}
VERBATIM
)
endfunction(add_external_project_step)
function(add_external_project_download_command name)
get_external_project_directories(base_dir build_dir downloads_dir install_dir