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CMake/Modules/ExternalProject.cmake
David Cole 67f4759b55 Qualify name of extraction location with ExternalProject name. 
Avoid issues with two external projects trying to extract two
separate trees at the same time into the same location. Should
fix the sporadically failing ExternalProject test on the dashboards
for parallel builds.
2010-06-23 07:04:06 -04:00

1177 lines
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CMake
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# - Create custom targets to build projects in external trees
# The 'ExternalProject_Add' function creates a custom target to drive
# download, update/patch, configure, build, install and test steps of an
# external project:
# ExternalProject_Add(<name> # Name for custom target
# [DEPENDS projects...] # Targets on which the project depends
# [PREFIX dir] # Root dir for entire project
# [LIST_SEPARATOR sep] # Sep to be replaced by ; in cmd lines
# [TMP_DIR dir] # Directory to store temporary files
# [STAMP_DIR dir] # Directory to store step timestamps
# #--Download step--------------
# [DOWNLOAD_DIR dir] # Directory to store downloaded files
# [DOWNLOAD_COMMAND cmd...] # Command to download source tree
# [CVS_REPOSITORY cvsroot] # CVSROOT of CVS repository
# [CVS_MODULE mod] # Module to checkout from CVS repo
# [CVS_TAG tag] # Tag to checkout from CVS repo
# [SVN_REPOSITORY url] # URL of Subversion repo
# [SVN_REVISION rev] # Revision to checkout from Subversion repo
# [SVN_USERNAME john ] # Username for Subversion checkout and update
# [SVN_PASSWORD doe ] # Password for Subversion checkout and update
# [GIT_REPOSITORY url] # URL of git repo
# [GIT_TAG tag] # Git branch name, commit id or tag
# [URL /.../src.tgz] # Full path or URL of source
# [URL_MD5 md5] # MD5 checksum of file at URL
# [TIMEOUT seconds] # Time allowed for file download operations
# #--Update/Patch step----------
# [UPDATE_COMMAND cmd...] # Source work-tree update command
# [PATCH_COMMAND cmd...] # Command to patch downloaded source
# #--Configure step-------------
# [SOURCE_DIR dir] # Source dir to be used for build
# [CONFIGURE_COMMAND cmd...] # Build tree configuration command
# [CMAKE_COMMAND /.../cmake] # Specify alternative cmake executable
# [CMAKE_GENERATOR gen] # Specify generator for native build
# [CMAKE_ARGS args...] # Arguments to CMake command line
# #--Build step-----------------
# [BINARY_DIR dir] # Specify build dir location
# [BUILD_COMMAND cmd...] # Command to drive the native build
# [BUILD_IN_SOURCE 1] # Use source dir for build dir
# #--Install step---------------
# [INSTALL_DIR dir] # Installation prefix
# [INSTALL_COMMAND cmd...] # Command to drive install after build
# #--Test step---------------
# [TEST_BEFORE_INSTALL 1] # Add test step executed before install step
# [TEST_AFTER_INSTALL 1] # Add test step executed after install step
# [TEST_COMMAND cmd...] # Command to drive test
# )
# The *_DIR options specify directories for the project, with default
# directories computed as follows.
# If the PREFIX option is given to ExternalProject_Add() or the EP_PREFIX
# directory property is set, then an external project is built and installed
# under the specified prefix:
# TMP_DIR = <prefix>/tmp
# STAMP_DIR = <prefix>/src/<name>-stamp
# DOWNLOAD_DIR = <prefix>/src
# SOURCE_DIR = <prefix>/src/<name>
# BINARY_DIR = <prefix>/src/<name>-build
# INSTALL_DIR = <prefix>
# Otherwise, if the EP_BASE directory property is set then components
# of an external project are stored under the specified base:
# TMP_DIR = <base>/tmp/<name>
# STAMP_DIR = <base>/Stamp/<name>
# DOWNLOAD_DIR = <base>/Download/<name>
# SOURCE_DIR = <base>/Source/<name>
# BINARY_DIR = <base>/Build/<name>
# INSTALL_DIR = <base>/Install/<name>
# If no PREFIX, EP_PREFIX, or EP_BASE is specified then the default
# is to set PREFIX to "<name>-prefix".
# Relative paths are interpreted with respect to the build directory
# corresponding to the source directory in which ExternalProject_Add is
# invoked.
#
# If SOURCE_DIR is explicitly set to an existing directory the project
# will be built from it.
# Otherwise a download step must be specified using one of the
# DOWNLOAD_COMMAND, CVS_*, SVN_*, or URL options.
# The URL option may refer locally to a directory or source tarball,
# or refer to a remote tarball (e.g. http://.../src.tgz).
#
# The 'ExternalProject_Add_Step' function adds a custom step to an external
# project:
# ExternalProject_Add_Step(<name> <step> # Names of project and custom step
# [COMMAND cmd...] # Command line invoked by this step
# [COMMENT "text..."] # Text printed when step executes
# [DEPENDEES steps...] # Steps on which this step depends
# [DEPENDERS steps...] # Steps that depend on this step
# [DEPENDS files...] # Files on which this step depends
# [ALWAYS 1] # No stamp file, step always runs
# [WORKING_DIRECTORY dir] # Working directory for command
# )
# The command line, comment, and working directory of every standard
# and custom step is processed to replace tokens
# <SOURCE_DIR>,
# <BINARY_DIR>,
# <INSTALL_DIR>,
# and <TMP_DIR>
# with corresponding property values.
#
# The 'ExternalProject_Get_Property' function retrieves external project
# target properties:
# ExternalProject_Get_Property(<name> [prop1 [prop2 [...]]])
# It stores property values in variables of the same name.
# Property names correspond to the keyword argument names of
# 'ExternalProject_Add'.
#=============================================================================
# Copyright 2008-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distributed this file outside of CMake, substitute the full
# License text for the above reference.)
# Pre-compute a regex to match documented keywords for each command.
file(STRINGS "${CMAKE_CURRENT_LIST_FILE}" lines LIMIT_COUNT 103
REGEX "^# ( \\[[A-Z0-9_]+ [^]]*\\] +#.*$|[A-Za-z0-9_]+\\()")
foreach(line IN LISTS lines)
if("${line}" MATCHES "^# [A-Za-z0-9_]+\\(")
if(_ep_func)
set(_ep_keywords_${_ep_func} "${_ep_keywords_${_ep_func}})$")
endif()
string(REGEX REPLACE "^# ([A-Za-z0-9_]+)\\(.*" "\\1" _ep_func "${line}")
#message("function [${_ep_func}]")
set(_ep_keywords_${_ep_func} "^(")
set(_ep_keyword_sep)
else()
string(REGEX REPLACE "^# \\[([A-Z0-9_]+) .*" "\\1" _ep_key "${line}")
#message(" keyword [${_ep_key}]")
set(_ep_keywords_${_ep_func}
"${_ep_keywords_${_ep_func}}${_ep_keyword_sep}${_ep_key}")
set(_ep_keyword_sep "|")
endif()
endforeach()
if(_ep_func)
set(_ep_keywords_${_ep_func} "${_ep_keywords_${_ep_func}})$")
endif()
function(_ep_parse_arguments f name ns args)
# Transfer the arguments to this function into target properties for the
# new custom target we just added so that we can set up all the build steps
# correctly based on target properties.
#
# We loop through ARGN and consider the namespace starting with an
# upper-case letter followed by at least two more upper-case letters
# or underscores to be keywords.
set(key)
foreach(arg IN LISTS args)
set(is_value 1)
if(arg MATCHES "^[A-Z][A-Z0-9_][A-Z0-9_]+$" AND
NOT ((arg STREQUAL "${key}") AND (key STREQUAL "COMMAND")) AND
NOT arg MATCHES "^(TRUE|FALSE)$")
if(_ep_keywords_${f} AND arg MATCHES "${_ep_keywords_${f}}")
set(is_value 0)
else()
if(NOT (key STREQUAL "COMMAND")
AND NOT (key STREQUAL "CVS_MODULE")
AND NOT (key STREQUAL "DEPENDS")
AND NOT (key STREQUAL "DOWNLOAD_COMMAND")
)
message(AUTHOR_WARNING "unknown ${f} keyword: ${arg}")
endif()
endif()
endif()
if(is_value)
if(key)
# Value
if(NOT arg STREQUAL "")
set_property(TARGET ${name} APPEND PROPERTY ${ns}${key} "${arg}")
else()
get_property(have_key TARGET ${name} PROPERTY ${ns}${key} SET)
if(have_key)
get_property(value TARGET ${name} PROPERTY ${ns}${key})
set_property(TARGET ${name} PROPERTY ${ns}${key} "${value};${arg}")
else()
set_property(TARGET ${name} PROPERTY ${ns}${key} "${arg}")
endif()
endif()
else()
# Missing Keyword
message(AUTHOR_WARNING "value '${arg}' with no previous keyword in ${f}")
endif()
else()
set(key "${arg}")
endif()
endforeach()
endfunction(_ep_parse_arguments)
define_property(DIRECTORY PROPERTY "EP_BASE" INHERITED
BRIEF_DOCS "Base directory for External Project storage."
FULL_DOCS
"See documentation of the ExternalProject_Add() function in the "
"ExternalProject module."
)
define_property(DIRECTORY PROPERTY "EP_PREFIX" INHERITED
BRIEF_DOCS "Top prefix for External Project storage."
FULL_DOCS
"See documentation of the ExternalProject_Add() function in the "
"ExternalProject module."
)
function(_ep_write_gitclone_script script_filename source_dir git_EXECUTABLE git_repository git_tag src_name work_dir)
file(WRITE ${script_filename}
"if(\"${git_tag}\" STREQUAL \"\")
message(FATAL_ERROR \"Tag for git checkout should not be empty.\")
endif()
execute_process(
COMMAND \${CMAKE_COMMAND} -E remove_directory \"${source_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to remove directory: '${source_dir}'\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" clone \"${git_repository}\" \"${src_name}\"
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to clone repository: '${git_repository}'\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" checkout ${git_tag}
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to checkout tag: '${git_tag}'\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" submodule init
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to init submodules in: '${work_dir}/${src_name}'\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" submodule update --recursive
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to update submodules in: '${work_dir}/${src_name}'\")
endif()
"
)
endfunction(_ep_write_gitclone_script)
function(_ep_write_downloadfile_script script_filename remote local timeout md5)
if(timeout)
set(timeout_args TIMEOUT ${timeout})
set(timeout_msg "${timeout} seconds")
else()
set(timeout_args "# no TIMEOUT")
set(timeout_msg "none")
endif()
if(md5)
set(md5_args EXPECTED_MD5 ${md5})
else()
set(md5_args "# no EXPECTED_MD5")
endif()
file(WRITE ${script_filename}
"message(STATUS \"downloading...
src='${remote}'
dst='${local}'
timeout='${timeout_msg}'\")
file(DOWNLOAD
\"${remote}\"
\"${local}\"
SHOW_PROGRESS
${md5_args}
${timeout_args}
STATUS status
LOG log)
list(GET status 0 status_code)
list(GET status 1 status_string)
if(NOT status_code EQUAL 0)
message(FATAL_ERROR \"error: downloading '${remote}' failed
status_code: \${status_code}
status_string: \${status_string}
log: \${log}
\")
endif()
message(STATUS \"downloading... done\")
"
)
endfunction(_ep_write_downloadfile_script)
function(_ep_write_verifyfile_script script_filename local md5)
file(WRITE ${script_filename}
"message(STATUS \"verifying file...
file='${local}'\")
set(verified 0)
# If an expected md5 checksum exists, compare against it:
#
if(NOT \"${md5}\" STREQUAL \"\")
execute_process(COMMAND \${CMAKE_COMMAND} -E md5sum \"${local}\"
OUTPUT_VARIABLE ov
OUTPUT_STRIP_TRAILING_WHITESPACE
RESULT_VARIABLE rv)
if(NOT rv EQUAL 0)
message(FATAL_ERROR \"error: computing md5sum of '${local}' failed\")
endif()
string(REGEX MATCH \"^([0-9A-Fa-f]+)\" md5_actual \"\${ov}\")
string(TOLOWER \"\${md5_actual}\" md5_actual)
string(TOLOWER \"${md5}\" md5)
if(NOT \"\${md5}\" STREQUAL \"\${md5_actual}\")
message(FATAL_ERROR \"error: md5sum of '${local}' does not match expected value
md5_expected: \${md5}
md5_actual: \${md5_actual}
\")
endif()
set(verified 1)
endif()
if(verified)
message(STATUS \"verifying file... done\")
else()
message(STATUS \"verifying file... warning: did not verify file - no URL_MD5 checksum argument? corrupt file?\")
endif()
"
)
endfunction(_ep_write_verifyfile_script)
function(_ep_write_extractfile_script script_filename name filename directory)
set(args "")
if(filename MATCHES "(\\.bz2|\\.tar\\.gz|\\.tgz|\\.zip)$")
set(args xfz)
endif()
if(filename MATCHES "\\.tar$")
set(args xf)
endif()
if(args STREQUAL "")
message(SEND_ERROR "error: do not know how to extract '${filename}' -- known types are .bz2, .tar, .tar.gz, .tgz and .zip")
return()
endif()
file(WRITE ${script_filename}
"# Make file names absolute:
#
get_filename_component(filename \"${filename}\" ABSOLUTE)
get_filename_component(directory \"${directory}\" ABSOLUTE)
message(STATUS \"extracting...
src='\${filename}'
dst='\${directory}'\")
if(NOT EXISTS \"\${filename}\")
message(FATAL_ERROR \"error: file to extract does not exist: '\${filename}'\")
endif()
# Prepare a space for extracting:
#
set(i 1234)
while(EXISTS \"\${directory}/../ex-${name}\${i}\")
math(EXPR i \"\${i} + 1\")
endwhile()
set(ut_dir \"\${directory}/../ex-${name}\${i}\")
file(MAKE_DIRECTORY \"\${ut_dir}\")
# Extract it:
#
message(STATUS \"extracting... [tar ${args}]\")
execute_process(COMMAND \${CMAKE_COMMAND} -E tar ${args} \${filename}
WORKING_DIRECTORY \${ut_dir}
RESULT_VARIABLE rv)
if(NOT rv EQUAL 0)
message(STATUS \"extracting... [error clean up]\")
file(REMOVE_RECURSE \"\${ut_dir}\")
message(FATAL_ERROR \"error: extract of '\${filename}' failed\")
endif()
# Analyze what came out of the tar file:
#
message(STATUS \"extracting... [analysis]\")
file(GLOB contents \"\${ut_dir}/*\")
list(LENGTH contents n)
if(NOT n EQUAL 1 OR NOT IS_DIRECTORY \"\${contents}\")
set(contents \"\${ut_dir}\")
endif()
# Move \"the one\" directory to the final directory:
#
message(STATUS \"extracting... [rename]\")
file(REMOVE_RECURSE \${directory})
get_filename_component(contents \${contents} ABSOLUTE)
file(RENAME \${contents} \${directory})
# Clean up:
#
message(STATUS \"extracting... [clean up]\")
file(REMOVE_RECURSE \"\${ut_dir}\")
message(STATUS \"extracting... done\")
"
)
endfunction(_ep_write_extractfile_script)
function(_ep_set_directories name)
get_property(prefix TARGET ${name} PROPERTY _EP_PREFIX)
if(NOT prefix)
get_property(prefix DIRECTORY PROPERTY EP_PREFIX)
if(NOT prefix)
get_property(base DIRECTORY PROPERTY EP_BASE)
if(NOT base)
set(prefix "${name}-prefix")
endif()
endif()
endif()
if(prefix)
set(tmp_default "${prefix}/tmp")
set(download_default "${prefix}/src")
set(source_default "${prefix}/src/${name}")
set(binary_default "${prefix}/src/${name}-build")
set(stamp_default "${prefix}/src/${name}-stamp")
set(install_default "${prefix}")
else() # assert(base)
set(tmp_default "${base}/tmp/${name}")
set(download_default "${base}/Download/${name}")
set(source_default "${base}/Source/${name}")
set(binary_default "${base}/Build/${name}")
set(stamp_default "${base}/Stamp/${name}")
set(install_default "${base}/Install/${name}")
endif()
get_property(build_in_source TARGET ${name} PROPERTY _EP_BUILD_IN_SOURCE)
if(build_in_source)
get_property(have_binary_dir TARGET ${name} PROPERTY _EP_BINARY_DIR SET)
if(have_binary_dir)
message(FATAL_ERROR
"External project ${name} has both BINARY_DIR and BUILD_IN_SOURCE!")
endif()
endif()
set(top "${CMAKE_CURRENT_BINARY_DIR}")
set(places stamp download source binary install tmp)
foreach(var ${places})
string(TOUPPER "${var}" VAR)
get_property(${var}_dir TARGET ${name} PROPERTY _EP_${VAR}_DIR)
if(NOT ${var}_dir)
set(${var}_dir "${${var}_default}")
endif()
if(NOT IS_ABSOLUTE "${${var}_dir}")
get_filename_component(${var}_dir "${top}/${${var}_dir}" ABSOLUTE)
endif()
set_property(TARGET ${name} PROPERTY _EP_${VAR}_DIR "${${var}_dir}")
endforeach()
if(build_in_source)
get_property(source_dir TARGET ${name} PROPERTY _EP_SOURCE_DIR)
set_property(TARGET ${name} PROPERTY _EP_BINARY_DIR "${source_dir}")
endif()
# Make the directories at CMake configure time *and* add a custom command
# to make them at build time. They need to exist at makefile generation
# time for Borland make and wmake so that CMake may generate makefiles
# with "cd C:\short\paths\with\no\spaces" commands in them.
#
# Additionally, the add_custom_command is still used in case somebody
# removes one of the necessary directories and tries to rebuild without
# re-running cmake.
foreach(var ${places})
string(TOUPPER "${var}" VAR)
get_property(dir TARGET ${name} PROPERTY _EP_${VAR}_DIR)
file(MAKE_DIRECTORY "${dir}")
if(NOT EXISTS "${dir}")
message(FATAL_ERROR "dir '${dir}' does not exist after file(MAKE_DIRECTORY)")
endif()
endforeach()
endfunction(_ep_set_directories)
function(ExternalProject_Get_Property name)
foreach(var ${ARGN})
string(TOUPPER "${var}" VAR)
get_property(${var} TARGET ${name} PROPERTY _EP_${VAR})
if(NOT ${var})
message(FATAL_ERROR "External project \"${name}\" has no ${var}")
endif()
set(${var} "${${var}}" PARENT_SCOPE)
endforeach()
endfunction(ExternalProject_Get_Property)
function(_ep_get_configure_command_id name cfg_cmd_id_var)
get_target_property(cmd ${name} _EP_CONFIGURE_COMMAND)
if(cmd STREQUAL "")
# Explicit empty string means no configure step for this project
set(${cfg_cmd_id_var} "none" PARENT_SCOPE)
else()
if(NOT cmd)
# Default is "use cmake":
set(${cfg_cmd_id_var} "cmake" PARENT_SCOPE)
else()
# Otherwise we have to analyze the value:
if(cmd MATCHES "^[^;]*/configure")
set(${cfg_cmd_id_var} "configure" PARENT_SCOPE)
elseif(cmd MATCHES "^[^;]*/cmake" AND NOT cmd MATCHES ";-[PE];")
set(${cfg_cmd_id_var} "cmake" PARENT_SCOPE)
elseif(cmd MATCHES "config")
set(${cfg_cmd_id_var} "configure" PARENT_SCOPE)
else()
set(${cfg_cmd_id_var} "unknown:${cmd}" PARENT_SCOPE)
endif()
endif()
endif()
endfunction(_ep_get_configure_command_id)
function(_ep_get_build_command name step cmd_var)
set(cmd "${${cmd_var}}")
if(NOT cmd)
set(args)
_ep_get_configure_command_id(${name} cfg_cmd_id)
if(cfg_cmd_id STREQUAL "cmake")
# CMake project. Select build command based on generator.
get_target_property(cmake_generator ${name} _EP_CMAKE_GENERATOR)
if("${cmake_generator}" MATCHES "Make" AND
"${cmake_generator}" STREQUAL "${CMAKE_GENERATOR}")
# The project uses the same Makefile generator. Use recursive make.
set(cmd "$(MAKE)")
if(step STREQUAL "INSTALL")
set(args install)
endif()
if(step STREQUAL "TEST")
set(args test)
endif()
else()
# Drive the project with "cmake --build".
get_target_property(cmake_command ${name} _EP_CMAKE_COMMAND)
if(cmake_command)
set(cmd "${cmake_command}")
else()
set(cmd "${CMAKE_COMMAND}")
endif()
set(args --build ${binary_dir} --config ${CMAKE_CFG_INTDIR})
if(step STREQUAL "INSTALL")
list(APPEND args --target install)
endif()
# But for "TEST" drive the project with corresponding "ctest".
if(step STREQUAL "TEST")
string(REGEX REPLACE "^(.*/)cmake([^/]*)$" "\\1ctest\\2" cmd "${cmd}")
set(args "")
endif()
endif()
else() # if(cfg_cmd_id STREQUAL "configure")
# Non-CMake project. Guess "make" and "make install" and "make test".
set(cmd "make")
if(step STREQUAL "INSTALL")
set(args install)
endif()
if(step STREQUAL "TEST")
set(args test)
endif()
endif()
# Use user-specified arguments instead of default arguments, if any.
get_property(have_args TARGET ${name} PROPERTY _EP_${step}_ARGS SET)
if(have_args)
get_target_property(args ${name} _EP_${step}_ARGS)
endif()
list(APPEND cmd ${args})
endif()
set(${cmd_var} "${cmd}" PARENT_SCOPE)
endfunction(_ep_get_build_command)
# This module used to use "/${CMAKE_CFG_INTDIR}" directly and produced
# makefiles with "/./" in paths for custom command dependencies. Which
# resulted in problems with parallel make -j invocations.
#
# This function was added so that the suffix (search below for ${cfgdir}) is
# only set to "/${CMAKE_CFG_INTDIR}" when ${CMAKE_CFG_INTDIR} is not going to
# be "." (multi-configuration build systems like Visual Studio and Xcode...)
#
function(_ep_get_configuration_subdir_suffix suffix_var)
set(suffix "")
if(CMAKE_CONFIGURATION_TYPES)
set(suffix "/${CMAKE_CFG_INTDIR}")
endif()
set(${suffix_var} "${suffix}" PARENT_SCOPE)
endfunction(_ep_get_configuration_subdir_suffix)
function(ExternalProject_Add_Step name step)
set(cmf_dir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles)
ExternalProject_Get_Property(${name} stamp_dir)
_ep_get_configuration_subdir_suffix(cfgdir)
add_custom_command(APPEND
OUTPUT ${cmf_dir}${cfgdir}/${name}-complete
DEPENDS ${stamp_dir}${cfgdir}/${name}-${step}
)
_ep_parse_arguments(ExternalProject_Add_Step
${name} _EP_${step}_ "${ARGN}")
# Steps depending on this step.
get_property(dependers TARGET ${name} PROPERTY _EP_${step}_DEPENDERS)
foreach(depender IN LISTS dependers)
add_custom_command(APPEND
OUTPUT ${stamp_dir}${cfgdir}/${name}-${depender}
DEPENDS ${stamp_dir}${cfgdir}/${name}-${step}
)
endforeach()
# Dependencies on files.
get_property(depends TARGET ${name} PROPERTY _EP_${step}_DEPENDS)
# Dependencies on steps.
get_property(dependees TARGET ${name} PROPERTY _EP_${step}_DEPENDEES)
foreach(dependee IN LISTS dependees)
list(APPEND depends ${stamp_dir}${cfgdir}/${name}-${dependee})
endforeach()
# The command to run.
get_property(command TARGET ${name} PROPERTY _EP_${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 ${name} PROPERTY _EP_${step}_WORKING_DIRECTORY)
# Replace list separators.
get_property(sep TARGET ${name} PROPERTY _EP_LIST_SEPARATOR)
if(sep AND command)
string(REPLACE "${sep}" "\\;" command "${command}")
endif()
# Replace location tags.
foreach(var comment command work_dir)
if(${var})
foreach(dir SOURCE_DIR BINARY_DIR INSTALL_DIR TMP_DIR)
get_property(val TARGET ${name} PROPERTY _EP_${dir})
string(REPLACE "<${dir}>" "${val}" ${var} "${${var}}")
endforeach()
endif()
endforeach()
# Custom comment?
get_property(comment_set TARGET ${name} PROPERTY _EP_${step}_COMMENT SET)
if(comment_set)
get_property(comment TARGET ${name} PROPERTY _EP_${step}_COMMENT)
endif()
# Run every time?
get_property(always TARGET ${name} PROPERTY _EP_${step}_ALWAYS)
if(always)
set_property(SOURCE ${stamp_dir}${cfgdir}/${name}-${step} PROPERTY SYMBOLIC 1)
set(touch)
else()
set(touch ${CMAKE_COMMAND} -E touch ${stamp_dir}${cfgdir}/${name}-${step})
endif()
add_custom_command(
OUTPUT ${stamp_dir}${cfgdir}/${name}-${step}
COMMENT ${comment}
COMMAND ${command}
COMMAND ${touch}
DEPENDS ${depends}
WORKING_DIRECTORY ${work_dir}
VERBATIM
)
endfunction(ExternalProject_Add_Step)
function(_ep_add_mkdir_command name)
ExternalProject_Get_Property(${name}
source_dir binary_dir install_dir stamp_dir download_dir tmp_dir)
_ep_get_configuration_subdir_suffix(cfgdir)
ExternalProject_Add_Step(${name} mkdir
COMMENT "Creating directories for '${name}'"
COMMAND ${CMAKE_COMMAND} -E make_directory ${source_dir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${binary_dir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${install_dir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${tmp_dir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${stamp_dir}${cfgdir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${download_dir}
)
endfunction(_ep_add_mkdir_command)
function(_ep_get_git_version git_EXECUTABLE git_version_var)
if(git_EXECUTABLE)
execute_process(
COMMAND "${git_EXECUTABLE}" --version
OUTPUT_VARIABLE ov
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "^git version (.+)$" "\\1" version "${ov}")
set(${git_version_var} "${version}" PARENT_SCOPE)
endif()
endfunction()
function(_ep_is_dir_empty dir empty_var)
file(GLOB gr "${dir}/*")
if("${gr}" STREQUAL "")
set(${empty_var} 1 PARENT_SCOPE)
else()
set(${empty_var} 0 PARENT_SCOPE)
endif()
endfunction()
function(_ep_add_download_command name)
ExternalProject_Get_Property(${name} source_dir stamp_dir download_dir tmp_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_DOWNLOAD_COMMAND SET)
get_property(cmd TARGET ${name} PROPERTY _EP_DOWNLOAD_COMMAND)
get_property(cvs_repository TARGET ${name} PROPERTY _EP_CVS_REPOSITORY)
get_property(svn_repository TARGET ${name} PROPERTY _EP_SVN_REPOSITORY)
get_property(git_repository TARGET ${name} PROPERTY _EP_GIT_REPOSITORY)
get_property(url TARGET ${name} PROPERTY _EP_URL)
# TODO: Perhaps file:// should be copied to download dir before extraction.
string(REGEX REPLACE "^file://" "" url "${url}")
set(depends)
set(comment)
set(work_dir)
if(cmd_set)
set(work_dir ${download_dir})
elseif(cvs_repository)
find_package(CVS)
if(NOT CVS_EXECUTABLE)
message(FATAL_ERROR "error: could not find cvs for checkout of ${name}")
endif()
get_target_property(cvs_module ${name} _EP_CVS_MODULE)
if(NOT cvs_module)
message(FATAL_ERROR "error: no CVS_MODULE")
endif()
get_property(cvs_tag TARGET ${name} PROPERTY _EP_CVS_TAG)
set(repository ${cvs_repository})
set(module ${cvs_module})
set(tag ${cvs_tag})
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-cvsinfo.txt"
@ONLY
)
get_filename_component(src_name "${source_dir}" NAME)
get_filename_component(work_dir "${source_dir}" PATH)
set(comment "Performing download step (CVS checkout) for '${name}'")
set(cmd ${CVS_EXECUTABLE} -d ${cvs_repository} -q co ${cvs_tag} -d ${src_name} ${cvs_module})
list(APPEND depends ${stamp_dir}/${name}-cvsinfo.txt)
elseif(svn_repository)
find_package(Subversion)
if(NOT Subversion_SVN_EXECUTABLE)
message(FATAL_ERROR "error: could not find svn for checkout of ${name}")
endif()
get_property(svn_revision TARGET ${name} PROPERTY _EP_SVN_REVISION)
get_property(svn_username TARGET ${name} PROPERTY _EP_SVN_USERNAME)
get_property(svn_password TARGET ${name} PROPERTY _EP_SVN_PASSWORD)
set(repository "${svn_repository} user=${svn_username} password=${svn_password}")
set(module)
set(tag ${svn_revision})
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-svninfo.txt"
@ONLY
)
get_filename_component(src_name "${source_dir}" NAME)
get_filename_component(work_dir "${source_dir}" PATH)
set(comment "Performing download step (SVN checkout) for '${name}'")
set(cmd ${Subversion_SVN_EXECUTABLE} co ${svn_repository} ${svn_revision}
--username=${svn_username} --password=${svn_password} ${src_name})
list(APPEND depends ${stamp_dir}/${name}-svninfo.txt)
elseif(git_repository)
find_package(Git)
if(NOT GIT_EXECUTABLE)
message(FATAL_ERROR "error: could not find git for clone of ${name}")
endif()
# The git submodule update '--recursive' flag requires git >= v1.6.5
#
_ep_get_git_version("${GIT_EXECUTABLE}" git_version)
if(git_version VERSION_LESS 1.6.5)
message(FATAL_ERROR "error: git version 1.6.5 or later required for 'git submodule update --recursive': git_version='${git_version}'")
endif()
get_property(git_tag TARGET ${name} PROPERTY _EP_GIT_TAG)
if(NOT git_tag)
set(git_tag "master")
endif()
set(repository ${git_repository})
set(module)
set(tag ${git_tag})
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-gitinfo.txt"
@ONLY
)
get_filename_component(src_name "${source_dir}" NAME)
get_filename_component(work_dir "${source_dir}" PATH)
# Since git clone doesn't succeed if the non-empty source_dir exists,
# create a cmake script to invoke as download command.
# The script will delete the source directory and then call git clone.
#
_ep_write_gitclone_script(${tmp_dir}/${name}-gitclone.cmake ${source_dir}
${GIT_EXECUTABLE} ${git_repository} ${git_tag} ${src_name} ${work_dir}
)
set(comment "Performing download step (git clone) for '${name}'")
set(cmd ${CMAKE_COMMAND} -P ${tmp_dir}/${name}-gitclone.cmake)
list(APPEND depends ${stamp_dir}/${name}-gitinfo.txt)
elseif(url)
get_filename_component(work_dir "${source_dir}" PATH)
get_property(md5 TARGET ${name} PROPERTY _EP_URL_MD5)
set(repository "external project URL")
set(module "${url}")
set(tag "${md5}")
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-urlinfo.txt"
@ONLY
)
list(APPEND depends ${stamp_dir}/${name}-urlinfo.txt)
if(IS_DIRECTORY "${url}")
get_filename_component(abs_dir "${url}" ABSOLUTE)
set(comment "Performing download step (DIR copy) for '${name}'")
set(cmd ${CMAKE_COMMAND} -E remove_directory ${source_dir}
COMMAND ${CMAKE_COMMAND} -E copy_directory ${abs_dir} ${source_dir})
else()
if("${url}" MATCHES "^[a-z]+://")
# TODO: Should download and extraction be different steps?
string(REGEX MATCH "[^/]*$" fname "${url}")
if(NOT "${fname}" MATCHES "\\.(bz2|tar|tgz|tar\\.gz|zip)$")
message(FATAL_ERROR "Could not extract tarball filename from url:\n ${url}")
endif()
set(file ${download_dir}/${fname})
get_property(timeout TARGET ${name} PROPERTY _EP_TIMEOUT)
_ep_write_downloadfile_script("${stamp_dir}/download-${name}.cmake" "${url}" "${file}" "${timeout}" "${md5}")
set(cmd ${CMAKE_COMMAND} -P ${stamp_dir}/download-${name}.cmake
COMMAND)
set(comment "Performing download step (download, verify and extract) for '${name}'")
else()
set(file "${url}")
set(comment "Performing download step (verify and extract) for '${name}'")
endif()
_ep_write_verifyfile_script("${stamp_dir}/verify-${name}.cmake" "${file}" "${md5}")
list(APPEND cmd ${CMAKE_COMMAND} -P ${stamp_dir}/verify-${name}.cmake)
_ep_write_extractfile_script("${stamp_dir}/extract-${name}.cmake" "${name}" "${file}" "${source_dir}")
list(APPEND cmd ${CMAKE_COMMAND} -P ${stamp_dir}/extract-${name}.cmake)
endif()
else()
_ep_is_dir_empty("${source_dir}" empty)
if(${empty})
message(SEND_ERROR "error: no download info for '${name}' -- please specify existing/non-empty SOURCE_DIR or one of URL, CVS_REPOSITORY and CVS_MODULE, SVN_REPOSITORY, GIT_REPOSITORY or DOWNLOAD_COMMAND")
endif()
endif()
ExternalProject_Add_Step(${name} download
COMMENT ${comment}
COMMAND ${cmd}
WORKING_DIRECTORY ${work_dir}
DEPENDS ${depends}
DEPENDEES mkdir
)
endfunction(_ep_add_download_command)
function(_ep_add_update_command name)
ExternalProject_Get_Property(${name} source_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_UPDATE_COMMAND SET)
get_property(cmd TARGET ${name} PROPERTY _EP_UPDATE_COMMAND)
get_property(cvs_repository TARGET ${name} PROPERTY _EP_CVS_REPOSITORY)
get_property(svn_repository TARGET ${name} PROPERTY _EP_SVN_REPOSITORY)
get_property(git_repository TARGET ${name} PROPERTY _EP_GIT_REPOSITORY)
set(work_dir)
set(comment)
set(always)
if(cmd_set)
set(work_dir ${source_dir})
elseif(cvs_repository)
if(NOT CVS_EXECUTABLE)
message(FATAL_ERROR "error: could not find cvs for update of ${name}")
endif()
set(work_dir ${source_dir})
set(comment "Performing update step (CVS update) for '${name}'")
get_property(cvs_tag TARGET ${name} PROPERTY _EP_CVS_TAG)
set(cmd ${CVS_EXECUTABLE} -d ${cvs_repository} -q up -dP ${cvs_tag})
set(always 1)
elseif(svn_repository)
if(NOT Subversion_SVN_EXECUTABLE)
message(FATAL_ERROR "error: could not find svn for update of ${name}")
endif()
set(work_dir ${source_dir})
set(comment "Performing update step (SVN update) for '${name}'")
get_property(svn_revision TARGET ${name} PROPERTY _EP_SVN_REVISION)
get_property(svn_username TARGET ${name} PROPERTY _EP_SVN_USERNAME)
get_property(svn_password TARGET ${name} PROPERTY _EP_SVN_PASSWORD)
set(cmd ${Subversion_SVN_EXECUTABLE} up ${svn_revision}
--username=${svn_username} --password=${svn_password})
set(always 1)
elseif(git_repository)
if(NOT GIT_EXECUTABLE)
message(FATAL_ERROR "error: could not find git for fetch of ${name}")
endif()
set(work_dir ${source_dir})
set(comment "Performing update step (git fetch) for '${name}'")
get_property(git_tag TARGET ${name} PROPERTY _EP_GIT_TAG)
if(NOT git_tag)
set(git_tag "master")
endif()
set(cmd ${GIT_EXECUTABLE} fetch
COMMAND ${GIT_EXECUTABLE} checkout ${git_tag}
COMMAND ${GIT_EXECUTABLE} submodule update --recursive
)
set(always 1)
endif()
ExternalProject_Add_Step(${name} update
COMMENT ${comment}
COMMAND ${cmd}
ALWAYS ${always}
WORKING_DIRECTORY ${work_dir}
DEPENDEES download
)
endfunction(_ep_add_update_command)
function(_ep_add_patch_command name)
ExternalProject_Get_Property(${name} source_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_PATCH_COMMAND SET)
get_property(cmd TARGET ${name} PROPERTY _EP_PATCH_COMMAND)
set(work_dir)
if(cmd_set)
set(work_dir ${source_dir})
endif()
ExternalProject_Add_Step(${name} patch
COMMAND ${cmd}
WORKING_DIRECTORY ${work_dir}
DEPENDEES download
)
endfunction(_ep_add_patch_command)
# TODO: Make sure external projects use the proper compiler
function(_ep_add_configure_command name)
ExternalProject_Get_Property(${name} source_dir binary_dir tmp_dir)
_ep_get_configuration_subdir_suffix(cfgdir)
# Depend on other external projects (file-level).
set(file_deps)
get_property(deps TARGET ${name} PROPERTY _EP_DEPENDS)
foreach(dep IN LISTS deps)
get_property(dep_stamp_dir TARGET ${dep} PROPERTY _EP_STAMP_DIR)
list(APPEND file_deps ${dep_stamp_dir}${cfgdir}/${dep}-done)
endforeach()
get_property(cmd_set TARGET ${name} PROPERTY _EP_CONFIGURE_COMMAND SET)
if(cmd_set)
get_property(cmd TARGET ${name} PROPERTY _EP_CONFIGURE_COMMAND)
else()
get_target_property(cmake_command ${name} _EP_CMAKE_COMMAND)
if(cmake_command)
set(cmd "${cmake_command}")
else()
set(cmd "${CMAKE_COMMAND}")
endif()
get_property(cmake_args TARGET ${name} PROPERTY _EP_CMAKE_ARGS)
list(APPEND cmd ${cmake_args})
get_target_property(cmake_generator ${name} _EP_CMAKE_GENERATOR)
if(cmake_generator)
list(APPEND cmd "-G${cmake_generator}" "${source_dir}")
else()
list(APPEND cmd "-G${CMAKE_GENERATOR}" "${source_dir}")
endif()
endif()
# If anything about the configure command changes, (command itself, cmake
# used, cmake args or cmake generator) then re-run the configure step.
# Fixes issue http://public.kitware.com/Bug/view.php?id=10258
#
if(NOT EXISTS ${tmp_dir}/${name}-cfgcmd.txt.in)
file(WRITE ${tmp_dir}/${name}-cfgcmd.txt.in "cmd='@cmd@'\n")
endif()
configure_file(${tmp_dir}/${name}-cfgcmd.txt.in ${tmp_dir}/${name}-cfgcmd.txt)
list(APPEND file_deps ${tmp_dir}/${name}-cfgcmd.txt)
ExternalProject_Add_Step(${name} configure
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES update patch
DEPENDS ${file_deps}
)
endfunction(_ep_add_configure_command)
function(_ep_add_build_command name)
ExternalProject_Get_Property(${name} binary_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_BUILD_COMMAND SET)
if(cmd_set)
get_property(cmd TARGET ${name} PROPERTY _EP_BUILD_COMMAND)
else()
_ep_get_build_command(${name} BUILD cmd)
endif()
ExternalProject_Add_Step(${name} build
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES configure
)
endfunction(_ep_add_build_command)
function(_ep_add_install_command name)
ExternalProject_Get_Property(${name} binary_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_INSTALL_COMMAND SET)
if(cmd_set)
get_property(cmd TARGET ${name} PROPERTY _EP_INSTALL_COMMAND)
else()
_ep_get_build_command(${name} INSTALL cmd)
endif()
ExternalProject_Add_Step(${name} install
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES build
)
endfunction(_ep_add_install_command)
function(_ep_add_test_command name)
ExternalProject_Get_Property(${name} binary_dir)
get_property(before TARGET ${name} PROPERTY _EP_TEST_BEFORE_INSTALL)
get_property(after TARGET ${name} PROPERTY _EP_TEST_AFTER_INSTALL)
get_property(cmd_set TARGET ${name} PROPERTY _EP_TEST_COMMAND SET)
# Only actually add the test step if one of the test related properties is
# explicitly set. (i.e. the test step is omitted unless requested...)
#
if(cmd_set OR before OR after)
if(cmd_set)
get_property(cmd TARGET ${name} PROPERTY _EP_TEST_COMMAND)
else()
_ep_get_build_command(${name} TEST cmd)
endif()
if(before)
set(dep_args DEPENDEES build DEPENDERS install)
else()
set(dep_args DEPENDEES install)
endif()
ExternalProject_Add_Step(${name} test
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
${dep_args}
)
endif()
endfunction(_ep_add_test_command)
function(ExternalProject_Add name)
_ep_get_configuration_subdir_suffix(cfgdir)
# Add a custom target for the external project.
set(cmf_dir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles)
add_custom_target(${name} ALL DEPENDS ${cmf_dir}${cfgdir}/${name}-complete)
set_property(TARGET ${name} PROPERTY _EP_IS_EXTERNAL_PROJECT 1)
_ep_parse_arguments(ExternalProject_Add ${name} _EP_ "${ARGN}")
_ep_set_directories(${name})
ExternalProject_Get_Property(${name} stamp_dir)
# The 'complete' step depends on all other steps and creates a
# 'done' mark. A dependent external project's 'configure' step
# depends on the 'done' mark so that it rebuilds when this project
# rebuilds. It is important that 'done' is not the output of any
# custom command so that CMake does not propagate build rules to
# other external project targets.
add_custom_command(
OUTPUT ${cmf_dir}${cfgdir}/${name}-complete
COMMENT "Completed '${name}'"
COMMAND ${CMAKE_COMMAND} -E make_directory ${cmf_dir}${cfgdir}
COMMAND ${CMAKE_COMMAND} -E touch ${cmf_dir}${cfgdir}/${name}-complete
COMMAND ${CMAKE_COMMAND} -E touch ${stamp_dir}${cfgdir}/${name}-done
DEPENDS ${stamp_dir}${cfgdir}/${name}-install
VERBATIM
)
# Depend on other external projects (target-level).
get_property(deps TARGET ${name} PROPERTY _EP_DEPENDS)
foreach(arg IN LISTS deps)
add_dependencies(${name} ${arg})
endforeach()
# Set up custom build steps based on the target properties.
# Each step depends on the previous one.
#
# The target depends on the output of the final step.
# (Already set up above in the DEPENDS of the add_custom_target command.)
#
_ep_add_mkdir_command(${name})
_ep_add_download_command(${name})
_ep_add_update_command(${name})
_ep_add_patch_command(${name})
_ep_add_configure_command(${name})
_ep_add_build_command(${name})
_ep_add_install_command(${name})
# Test is special in that it might depend on build, or it might depend
# on install.
#
_ep_add_test_command(${name})
endfunction(ExternalProject_Add)
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