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ExternalSource.cmake
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ExternalSource.cmake
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# Macro support for downloading and installing components. This reduces
# the boilerplate for each component to its minimum.
#
# A 5th optional parameter is an external download URL. If this is provided
# and the 6th optional parameter is "FORCE", only this external download URL
# will be used and the default FlyEM cache will be ignored.
#
# Uses the following CMake variables:
#
# USE_PROJECT_DOWNLOAD A list of project abbreviations that should use
# original project links instead of our cached
# FlyEM downloads.
#
# Sets the following variable if not already set:
# DEFAULT_CACHE_URL URL of cache for required software tarballs
# The macro external_source(ABBREV) modifies/sets the following variables:
# APP_DEPENDENCIES A list of all targets included (i.e., necessary)
# ${ABBREV}_URL URL used for external project downloads.
# ${ABBREV}_FILE The full path to the downloaded compressed file
# ${ABBREV}_FILE_MD5 The MD5 checksum of the compressed file
# ${ABBREV}_RELEASE The release identifier
# ${ABBREV}_NAME A simple identifier with just the name + version
# ${ABBREV}_SRC_DIR The directory containing the downloaded source code
# ${ABBREV}_BUILD "RELEASE" is set if this variable isn't set
# ${ABBREV}_INCLUDE_DIRS
# The macro external_git_repo(ABBREV) modifies/sets the following variables:
# APP_DEPENDENCIES A list of all targets included (i.e., necessary)
# ${ABBREV}_URL URL used for external project repo.
# ${ABBREV}_NAME A simple identifier with just the name + version
# ${ABBREV}_SRC_DIR The directory containing the working directory
# ${ABBREV}_BUILD "RELEASE" is set if this variable isn't set
# ${ABBREV}_INCLUDE_DIRS
if (NOT external_source)
if (NOT BUILDEM_DIR)
message (FATAL_ERROR "ERROR: FlyEM build directory (for all downloads & builds) should be specified via -DBUILDEM_DIR=<path> on cmake command line.")
endif ()
# URL of cache for required software tarballs
set (DEFAULT_CACHE_URL "http://janelia-flyem.github.io/downloads" CACHE TYPE STRING)
# Define macro to set a number of variables per external project source
macro (external_source ABBREV SRC_VERSION FILENAME MD5)
# RELEASE builds are by default
if (NOT ${ABBREV}_BUILD)
set (${ABBREV}_BUILD "RELEASE")
endif ()
set (external_source_name ${ABBREV}-${SRC_VERSION})
# Append this external source name to our list of dependencies
if (NOT ${ABBREV}_NAME)
if (NOT APP_DEPENDENCIES)
set (APP_DEPENDENCIES ${external_source_name})
else ()
set (APP_DEPENDENCIES ${APP_DEPENDENCIES} ${external_source_name})
endif ()
endif ()
set (${ABBREV}_NAME ${external_source_name})
set (${ABBREV}_FILE ${BUILDEM_DIR}/src/${FILENAME})
set (${ABBREV}_MD5 ${MD5})
set (${ABBREV}_RELEASE ${SRC_VERSION})
set (${ABBREV}_SRC_DIR ${BUILDEM_DIR}/src/${external_source_name})
set (${ABBREV}_INCLUDE_DIRS ${BUILDEM_DIR}/include)
set (use_default TRUE)
if (${ARGC} GREATER 4)
set (PREFIX_URL ${ARGV4})
endif ()
if (${ARGC} GREATER 5)
if (${ARGV5} STREQUAL "FORCE")
set (use_default FALSE)
else ()
message (FATAL_ERROR "Syntax error on calling external_source(): 6th parameter can only be FORCE")
endif ()
endif ()
if (USE_PROJECT_DOWNLOAD AND PREFIX_URL)
foreach (proj ${USE_PROJECT_DOWNLOAD})
if (proj STREQUAL ${ABBREV})
set (use_default FALSE)
endif ()
endforeach (proj)
endif (USE_PROJECT_DOWNLOAD AND PREFIX_URL)
if (${use_default})
set (${ABBREV}_URL ${DEFAULT_CACHE_URL}/${FILENAME})
else ()
set (${ABBREV}_URL ${PREFIX_URL}/${FILENAME})
endif ()
message ("Required software ${ABBREV}-${SRC_VERSION} will be retrieved from ${${ABBREV}_URL}")
endmacro (external_source)
# Define macro to set a number of variables per external git repo
# Note: Besides these named args, this macro accepts the following optional args:
# OVERRIDE_NAME - Used to override the <package>_NAME and <package>_SRC_DIR variables set by this macro
macro (external_git_repo ABBREV SRC_VERSION URL)
# Check for extra (optional) macro args.
set (extra_macro_args ${ARGN})
list(LENGTH extra_macro_args num_extra_args)
# RELEASE builds are by default
if (NOT ${ABBREV}_BUILD)
set (${ABBREV}_BUILD "RELEASE")
endif ()
# By default, package NAME and SRC_DIR are <package>-git
set (external_source_name ${ABBREV}-git)
# First optional macro arg overrides package NAME and SRC_DIR
if (${num_extra_args} GREATER 0)
list(GET extra_macro_args 0 external_source_name)
endif ()
message ("Setting external_git_repo: ${external_source_name}")
# Append this external source name to our list of dependencies
if (NOT ${ABBREV}_NAME)
if (NOT APP_DEPENDENCIES)
set (APP_DEPENDENCIES ${external_source_name})
else ()
set (APP_DEPENDENCIES ${APP_DEPENDENCIES} ${external_source_name})
endif ()
endif ()
set (${ABBREV}_NAME ${external_source_name})
set (${ABBREV}_SRC_DIR ${BUILDEM_DIR}/src/${external_source_name})
set (${ABBREV}_URL ${URL})
set (${ABBREV}_TAG ${SRC_VERSION})
set (${ABBREV}_INCLUDE_DIRS ${BUILDEM_DIR}/include)
endmacro (external_git_repo)
endif (NOT external_source)