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CMake/Modules/ExternalProject.cmake

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#.rst:
# ExternalProject
# ---------------
#
# 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:
#
# .. code-block:: cmake
#
# 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
# [EXCLUDE_FROM_ALL 1] # The "all" target does not depend on this
# #--Download step--------------
# [DOWNLOAD_NAME fname] # File name to store (if not end of URL)
# [DOWNLOAD_DIR dir] # Directory to store downloaded files
# [DOWNLOAD_COMMAND cmd...] # Command to download source tree
# [DOWNLOAD_NO_PROGRESS 1] # Disable download progress reports
# [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 -r<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
# [SVN_TRUST_CERT 1 ] # Trust the Subversion server site certificate
# [GIT_REPOSITORY url] # URL of git repo
# [GIT_TAG tag] # Git branch name, commit id or tag
# [GIT_SUBMODULES modules...] # Git submodules that shall be updated, all if empty
# [HG_REPOSITORY url] # URL of mercurial repo
# [HG_TAG tag] # Mercurial branch name, commit id or tag
# [URL /.../src.tgz] # Full path or URL of source
# [URL_HASH ALGO=value] # Hash of file at URL
# [URL_MD5 md5] # Equivalent to URL_HASH MD5=md5
# [TLS_VERIFY bool] # Should certificate for https be checked
# [TLS_CAINFO file] # Path to a certificate authority file
# [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_GENERATOR_PLATFORM p] # Generator-specific platform name
# [CMAKE_GENERATOR_TOOLSET t] # Generator-specific toolset name
# [CMAKE_ARGS args...] # Arguments to CMake command line
# [CMAKE_CACHE_ARGS args...] # Initial cache arguments, of the form -Dvar:string=on
# #--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
# [BUILD_ALWAYS 1] # No stamp file, build step always runs
# #--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
# #--Output logging-------------
# [LOG_DOWNLOAD 1] # Wrap download in script to log output
# [LOG_UPDATE 1] # Wrap update in script to log output
# [LOG_CONFIGURE 1] # Wrap configure in script to log output
# [LOG_BUILD 1] # Wrap build in script to log output
# [LOG_TEST 1] # Wrap test in script to log output
# [LOG_INSTALL 1] # Wrap install in script to log output
# #--Custom targets-------------
# [STEP_TARGETS st1 st2 ...] # Generate custom targets for these steps
# )
#
# 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:
#
# .. code-block:: cmake
#
# 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
# [EXCLUDE_FROM_MAIN 1] # Main target does not depend on this step
# [WORKING_DIRECTORY dir] # Working directory for command
# [LOG 1] # Wrap step in script to log output
# )
#
# 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.
#
# Any builtin step that specifies a ``<step>_COMMAND cmd...`` or custom
# step that specifies a ``COMMAND cmd...`` may specify additional command
# lines using the form ``COMMAND cmd...``. At build time the commands
# will be executed in order and aborted if any one fails. For example::
#
# ... BUILD_COMMAND make COMMAND echo done ...
#
# specifies to run ``make`` and then ``echo done`` during the build step.
# Whether the current working directory is preserved between commands is
# not defined. Behavior of shell operators like ``&&`` is not defined.
#
# 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``.
#
# The ``ExternalProject_Add_StepTargets`` function generates custom
# targets for the steps listed::
#
# ExternalProject_Add_StepTargets(<name> [step1 [step2 [...]]])
#
# If ``STEP_TARGETS`` is set then ``ExternalProject_Add_StepTargets`` is
# automatically called at the end of matching calls to
# ``ExternalProject_Add_Step``. Pass ``STEP_TARGETS`` explicitly to
# individual ``ExternalProject_Add`` calls, or implicitly to all
# ``ExternalProject_Add`` calls by setting the directory property
# ``EP_STEP_TARGETS``.
#
# If ``STEP_TARGETS`` is not set, clients may still manually call
# ``ExternalProject_Add_StepTargets`` after calling
# ``ExternalProject_Add`` or ``ExternalProject_Add_Step``.
#
# This functionality is provided to make it easy to drive the steps
# independently of each other by specifying targets on build command
# lines. For example, you may be submitting to a sub-project based
# dashboard, where you want to drive the configure portion of the build,
# then submit to the dashboard, followed by the build portion, followed
# by tests. If you invoke a custom target that depends on a step
# halfway through the step dependency chain, then all the previous steps
# will also run to ensure everything is up to date.
#
# For example, to drive configure, build and test steps independently
# for each ``ExternalProject_Add`` call in your project, write the following
# line prior to any ``ExternalProject_Add`` calls in your ``CMakeLists.txt``
# file::
#
# set_property(DIRECTORY PROPERTY EP_STEP_TARGETS configure build test)
#=============================================================================
# Copyright 2008-2013 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 distribute 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.
math(EXPR _ep_documentation_line_count "${CMAKE_CURRENT_LIST_LINE} - 16")
file(STRINGS "${CMAKE_CURRENT_LIST_FILE}" lines
LIMIT_COUNT ${_ep_documentation_line_count}
REGEX "^# ( \\[[A-Z0-9_]+ [^]]*\\] +#.*$|[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}})$")
endif()
set(_ep_func "${CMAKE_MATCH_1}")
#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}})$")
endif()
# Save regex matching supported hash algorithm names.
set(_ep_hash_algos "MD5|SHA1|SHA224|SHA256|SHA384|SHA512")
set(_ep_hash_regex "^(${_ep_hash_algos})=([0-9A-Fa-f]+)$")
function(_ep_parse_arguments f name ns args)
# Transfer the arguments to this function into target properties for the
# new custom target we just added so that we can set up all the build steps
# correctly based on target properties.
#
# We loop through ARGN and consider the namespace starting with an
# upper-case letter followed by at least two more upper-case letters,
# numbers or underscores to be keywords.
set(key)
foreach(arg IN LISTS args)
set(is_value 1)
if(arg MATCHES "^[A-Z][A-Z0-9_][A-Z0-9_]+$" 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)
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()
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."
)
define_property(DIRECTORY PROPERTY "EP_STEP_TARGETS" INHERITED
BRIEF_DOCS
"List of ExternalProject steps that automatically get corresponding targets"
FULL_DOCS
"See documentation of the ExternalProject_Add_StepTargets() function in the "
"ExternalProject module."
)
function(_ep_write_gitclone_script script_filename source_dir git_EXECUTABLE git_repository git_tag git_submodules src_name work_dir gitclone_infofile gitclone_stampfile)
file(WRITE ${script_filename}
"if(\"${git_tag}\" STREQUAL \"\")
message(FATAL_ERROR \"Tag for git checkout should not be empty.\")
endif()
set(run 0)
if(\"${gitclone_infofile}\" IS_NEWER_THAN \"${gitclone_stampfile}\")
set(run 1)
endif()
if(NOT run)
message(STATUS \"Avoiding repeated git clone, stamp file is up to date: '${gitclone_stampfile}'\")
return()
endif()
execute_process(
COMMAND \${CMAKE_COMMAND} -E remove_directory \"${source_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to remove directory: '${source_dir}'\")
endif()
# try the clone 3 times incase there is an odd git clone issue
set(error_code 1)
set(number_of_tries 0)
while(error_code AND number_of_tries LESS 3)
execute_process(
COMMAND \"${git_EXECUTABLE}\" clone \"${git_repository}\" \"${src_name}\"
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
math(EXPR number_of_tries \"\${number_of_tries} + 1\")
endwhile()
if(number_of_tries GREATER 1)
message(STATUS \"Had to git clone more than once:
\${number_of_tries} times.\")
endif()
if(error_code)
message(FATAL_ERROR \"Failed to clone repository: '${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 ${git_submodules}
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to update submodules in: '${work_dir}/${src_name}'\")
endif()
# Complete success, update the script-last-run stamp file:
#
execute_process(
COMMAND \${CMAKE_COMMAND} -E copy
\"${gitclone_infofile}\"
\"${gitclone_stampfile}\"
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to copy script-last-run stamp file: '${gitclone_stampfile}'\")
endif()
"
)
endfunction()
function(_ep_write_hgclone_script script_filename source_dir hg_EXECUTABLE hg_repository hg_tag src_name work_dir hgclone_infofile hgclone_stampfile)
file(WRITE ${script_filename}
"if(\"${hg_tag}\" STREQUAL \"\")
message(FATAL_ERROR \"Tag for hg checkout should not be empty.\")
endif()
set(run 0)
if(\"${hgclone_infofile}\" IS_NEWER_THAN \"${hgclone_stampfile}\")
set(run 1)
endif()
if(NOT run)
message(STATUS \"Avoiding repeated hg clone, stamp file is up to date: '${hgclone_stampfile}'\")
return()
endif()
execute_process(
COMMAND \${CMAKE_COMMAND} -E remove_directory \"${source_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to remove directory: '${source_dir}'\")
endif()
execute_process(
COMMAND \"${hg_EXECUTABLE}\" clone \"${hg_repository}\" \"${src_name}\"
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to clone repository: '${hg_repository}'\")
endif()
execute_process(
COMMAND \"${hg_EXECUTABLE}\" update ${hg_tag}
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to checkout tag: '${hg_tag}'\")
endif()
# Complete success, update the script-last-run stamp file:
#
execute_process(
COMMAND \${CMAKE_COMMAND} -E copy
\"${hgclone_infofile}\"
\"${hgclone_stampfile}\"
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to copy script-last-run stamp file: '${hgclone_stampfile}'\")
endif()
"
)
endfunction()
function(_ep_write_gitupdate_script script_filename git_EXECUTABLE git_tag git_submodules git_repository 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 \"${git_EXECUTABLE}\" rev-list --max-count=1 HEAD
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
OUTPUT_VARIABLE head_sha
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(error_code)
message(FATAL_ERROR \"Failed to get the hash for HEAD\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" show-ref ${git_tag}
WORKING_DIRECTORY \"${work_dir}\"
OUTPUT_VARIABLE show_ref_output
)
# If a remote ref is asked for, which can possibly move around,
# we must always do a fetch and checkout.
if(\"\${show_ref_output}\" MATCHES \"remotes\")
set(is_remote_ref 1)
else()
set(is_remote_ref 0)
endif()
# Tag is in the form <remote>/<tag> (i.e. origin/master) we must strip
# the remote from the tag.
if(\"\${show_ref_output}\" MATCHES \"refs/remotes/${git_tag}\")
string(REGEX MATCH \"^([^/]+)/(.+)$\" _unused \"${git_tag}\")
set(git_remote \"\${CMAKE_MATCH_1}\")
set(git_tag \"\${CMAKE_MATCH_2}\")
else()
set(git_remote \"origin\")
set(git_tag \"${git_tag}\")
endif()
# This will fail if the tag does not exist (it probably has not been fetched
# yet).
execute_process(
COMMAND \"${git_EXECUTABLE}\" rev-list --max-count=1 ${git_tag}
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
OUTPUT_VARIABLE tag_sha
OUTPUT_STRIP_TRAILING_WHITESPACE
)
# Is the hash checkout out that we want?
if(error_code OR is_remote_ref OR NOT (\"\${tag_sha}\" STREQUAL \"\${head_sha}\"))
execute_process(
COMMAND \"${git_EXECUTABLE}\" fetch
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to fetch repository '${git_repository}'\")
endif()
if(is_remote_ref)
# Check if stash is needed
execute_process(
COMMAND \"${git_EXECUTABLE}\" status --porcelain
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
OUTPUT_VARIABLE repo_status
)
if(error_code)
message(FATAL_ERROR \"Failed to get the status\")
endif()
string(LENGTH \"\${repo_status}\" need_stash)
# If not in clean state, stash changes in order to be able to be able to
# perform git pull --rebase
if(need_stash)
execute_process(
COMMAND \"${git_EXECUTABLE}\" stash save --all --quiet
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to stash changes\")
endif()
endif()
# Pull changes from the remote branch
execute_process(
COMMAND \"${git_EXECUTABLE}\" rebase \${git_remote}/\${git_tag}
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
# Rebase failed: Restore previous state.
execute_process(
COMMAND \"${git_EXECUTABLE}\" rebase --abort
WORKING_DIRECTORY \"${work_dir}\"
)
if(need_stash)
execute_process(
COMMAND \"${git_EXECUTABLE}\" stash pop --index --quiet
WORKING_DIRECTORY \"${work_dir}\"
)
endif()
message(FATAL_ERROR \"\\nFailed to rebase in: '${work_dir}/${src_name}'.\\nYou will have to resolve the conflicts manually\")
endif()
if(need_stash)
execute_process(
COMMAND \"${git_EXECUTABLE}\" stash pop --index --quiet
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
# Stash pop --index failed: Try again dropping the index
execute_process(
COMMAND \"${git_EXECUTABLE}\" reset --hard --quiet
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
execute_process(
COMMAND \"${git_EXECUTABLE}\" stash pop --quiet
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
# Stash pop failed: Restore previous state.
execute_process(
COMMAND \"${git_EXECUTABLE}\" reset --hard --quiet \${head_sha}
WORKING_DIRECTORY \"${work_dir}\"
)
execute_process(
COMMAND \"${git_EXECUTABLE}\" stash pop --index --quiet
WORKING_DIRECTORY \"${work_dir}\"
)
message(FATAL_ERROR \"\\nFailed to unstash changes in: '${work_dir}/${src_name}'.\\nYou will have to resolve the conflicts manually\")
endif()
endif()
endif()
else()
execute_process(
COMMAND \"${git_EXECUTABLE}\" checkout ${git_tag}
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to checkout tag: '${git_tag}'\")
endif()
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" submodule update --recursive ${git_submodules}
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to update submodules in: '${work_dir}/${src_name}'\")
endif()
endif()
"
)
endfunction(_ep_write_gitupdate_script)
function(_ep_write_downloadfile_script script_filename remote local timeout no_progress hash tls_verify tls_cainfo)
if(timeout)
set(timeout_args TIMEOUT ${timeout})
set(timeout_msg "${timeout} seconds")
else()
set(timeout_args "# no TIMEOUT")
set(timeout_msg "none")
endif()
if(no_progress)
set(show_progress "")
else()
set(show_progress "SHOW_PROGRESS")
endif()
if("${hash}" MATCHES "${_ep_hash_regex}")
set(hash_args EXPECTED_HASH ${CMAKE_MATCH_1}=${CMAKE_MATCH_2})
else()
set(hash_args "# no EXPECTED_HASH")
endif()
# check for curl globals in the project
if(DEFINED CMAKE_TLS_VERIFY)
set(tls_verify "set(CMAKE_TLS_VERIFY ${CMAKE_TLS_VERIFY})")
endif()
if(DEFINED CMAKE_TLS_CAINFO)
set(tls_cainfo "set(CMAKE_TLS_CAINFO \"${CMAKE_TLS_CAINFO}\")")
endif()
# now check for curl locals so that the local values
# will override the globals
# check for tls_verify argument
string(LENGTH "${tls_verify}" tls_verify_len)
if(tls_verify_len GREATER 0)
set(tls_verify "set(CMAKE_TLS_VERIFY ${tls_verify})")
endif()
# check for tls_cainfo argument
string(LENGTH "${tls_cainfo}" tls_cainfo_len)
if(tls_cainfo_len GREATER 0)
set(tls_cainfo "set(CMAKE_TLS_CAINFO \"${tls_cainfo}\")")
endif()
file(WRITE ${script_filename}
"message(STATUS \"downloading...
src='${remote}'
dst='${local}'
timeout='${timeout_msg}'\")
${tls_verify}
${tls_cainfo}
file(DOWNLOAD
\"${remote}\"
\"${local}\"
${show_progress}
${hash_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()
function(_ep_write_verifyfile_script script_filename local hash retries download_script)
if("${hash}" MATCHES "${_ep_hash_regex}")
set(algo "${CMAKE_MATCH_1}")
string(TOLOWER "${CMAKE_MATCH_2}" expect_value)
set(script_content "set(expect_value \"${expect_value}\")
set(attempt 0)
set(succeeded 0)
while(\${attempt} LESS ${retries} OR \${attempt} EQUAL ${retries} AND NOT \${succeeded})
file(${algo} \"\${file}\" actual_value)
if(\"\${actual_value}\" STREQUAL \"\${expect_value}\")
set(succeeded 1)
elseif(\${attempt} LESS ${retries})
message(STATUS \"${algo} hash of \${file}
does not match expected value
expected: \${expect_value}
actual: \${actual_value}
Retrying download.
\")
file(REMOVE \"\${file}\")
execute_process(COMMAND \${CMAKE_COMMAND} -P \"${download_script}\")
endif()
endwhile()
if(\${succeeded})
message(STATUS \"verifying file... done\")
else()
message(FATAL_ERROR \"error: ${algo} hash of
\${file}
does not match expected value
expected: \${expect_value}
actual: \${actual_value}
\")
endif()")
else()
set(script_content "message(STATUS \"verifying file... warning: did not verify file - no URL_HASH specified?\")")
endif()
file(WRITE ${script_filename} "set(file \"${local}\")
message(STATUS \"verifying file...
file='\${file}'\")
${script_content}
")
endfunction()
function(_ep_write_extractfile_script script_filename name filename directory)
set(args "")
if(filename MATCHES "(\\.|=)(7z|tar\\.bz2|tar\\.gz|tar\\.xz|tbz2|tgz|txz|zip)$")
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 .7z, .tar, .tar.bz2, .tar.gz, .tar.xz, .tbz2, .tgz, .txz 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()
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 "${prefix}")
else()
set(tmp_default "${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()
# IMPORTANT: this MUST be a macro and not a function because of the
# in-place replacements that occur in each ${var}
#
macro(_ep_replace_location_tags target_name)
set(vars ${ARGN})
foreach(var ${vars})
if(${var})
foreach(dir SOURCE_DIR BINARY_DIR INSTALL_DIR TMP_DIR)
get_property(val TARGET ${target_name} PROPERTY _EP_${dir})
string(REPLACE "<${dir}>" "${val}" ${var} "${${var}}")
endforeach()
endif()
endforeach()
endmacro()
function(_ep_write_initial_cache target_name script_filename args)
# Write out values into an initial cache, that will be passed to CMake with -C
set(script_initial_cache "")
set(regex "^([^:]+):([^=]+)=(.*)$")
set(setArg "")
foreach(line ${args})
if("${line}" MATCHES "^-D(.*)")
set(line "${CMAKE_MATCH_1}")
if(setArg)
# This is required to build up lists in variables, or complete an entry
set(setArg "${setArg}${accumulator}\" CACHE ${type} \"Initial cache\" FORCE)")
set(script_initial_cache "${script_initial_cache}\n${setArg}")
set(accumulator "")
set(setArg "")
endif()
if("${line}" MATCHES "${regex}")
set(name "${CMAKE_MATCH_1}")
set(type "${CMAKE_MATCH_2}")
set(value "${CMAKE_MATCH_3}")
set(setArg "set(${name} \"${value}")
else()
message(WARNING "Line '${line}' does not match regex. Ignoring.")
endif()
else()
# Assume this is a list to append to the last var
set(accumulator "${accumulator};${line}")
endif()
endforeach()
# Catch the final line of the args
if(setArg)
set(setArg "${setArg}${accumulator}\" CACHE ${type} \"Initial cache\" FORCE)")
set(script_initial_cache "${script_initial_cache}\n${setArg}")
endif()
# Replace location tags.
_ep_replace_location_tags(${target_name} script_initial_cache)
# Write out the initial cache file to the location specified.
if(NOT EXISTS "${script_filename}.in")
file(WRITE "${script_filename}.in" "\@script_initial_cache\@\n")
endif()
configure_file("${script_filename}.in" "${script_filename}")
endfunction()
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()
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()
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
("${cmake_generator}" MATCHES "Make" OR NOT cmake_generator))
# The project uses the same Makefile generator. Use recursive make.
set(cmd "$(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 "${cmd}")
set(args "")
endif()
endif()
else()
# Non-CMake project. Guess "make" and "make install" and "make test".
if("${CMAKE_GENERATOR}" MATCHES "Makefiles")
# Try to get the parallel arguments
set(cmd "$(MAKE)")
else()
set(cmd "make")
endif()
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} "${cmd}" PARENT_SCOPE)
endfunction()
function(_ep_write_log_script name step cmd_var)
ExternalProject_Get_Property(${name} stamp_dir)
set(command "${${cmd_var}}")
set(make "")
set(code_cygpath_make "")
if("${command}" MATCHES "^\\$\\(MAKE\\)")
# GNU make recognizes the string "$(MAKE)" as recursive make, so
# ensure that it appears directly in the makefile.
string(REGEX REPLACE "^\\$\\(MAKE\\)" "\${make}" command "${command}")
set(make "-Dmake=$(MAKE)")
if(WIN32 AND NOT CYGWIN)
set(code_cygpath_make "
if(\${make} MATCHES \"^/\")
execute_process(
COMMAND cygpath -w \${make}
OUTPUT_VARIABLE cygpath_make
ERROR_VARIABLE cygpath_make
RESULT_VARIABLE cygpath_error
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(NOT cygpath_error)
set(make \${cygpath_make})
endif()
endif()
")
endif()
endif()
set(config "")
if("${CMAKE_CFG_INTDIR}" MATCHES "^\\$")
string(REPLACE "${CMAKE_CFG_INTDIR}" "\${config}" command "${command}")
set(config "-Dconfig=${CMAKE_CFG_INTDIR}")
endif()
# Wrap multiple 'COMMAND' lines up into a second-level wrapper
# script so all output can be sent to one log file.
if("${command}" MATCHES ";COMMAND;")
set(code_execute_process "
${code_cygpath_make}
execute_process(COMMAND \${command} RESULT_VARIABLE result)
if(result)
set(msg \"Command failed (\${result}):\\n\")
foreach(arg IN LISTS command)
set(msg \"\${msg} '\${arg}'\")
endforeach()
message(FATAL_ERROR \"\${msg}\")
endif()
")
set(code "")
set(cmd "")
set(sep "")
foreach(arg IN LISTS command)
if("x${arg}" STREQUAL "xCOMMAND")
set(code "${code}set(command \"${cmd}\")${code_execute_process}")
set(cmd "")
set(sep "")
else()
set(cmd "${cmd}${sep}${arg}")
set(sep ";")
endif()
endforeach()
set(code "${code}set(command \"${cmd}\")${code_execute_process}")
file(WRITE ${stamp_dir}/${name}-${step}-impl.cmake "${code}")
set(command ${CMAKE_COMMAND} "-Dmake=\${make}" "-Dconfig=\${config}" -P ${stamp_dir}/${name}-${step}-impl.cmake)
endif()
# Wrap the command in a script to log output to files.
set(script ${stamp_dir}/${name}-${step}.cmake)
set(logbase ${stamp_dir}/${name}-${step})
file(WRITE ${script} "
${code_cygpath_make}
set(command \"${command}\")
execute_process(
COMMAND \${command}
RESULT_VARIABLE result
OUTPUT_FILE \"${logbase}-out.log\"
ERROR_FILE \"${logbase}-err.log\"
)
if(result)
set(msg \"Command failed: \${result}\\n\")
foreach(arg IN LISTS command)
set(msg \"\${msg} '\${arg}'\")
endforeach()
set(msg \"\${msg}\\nSee also\\n ${logbase}-*.log\\n\")
message(FATAL_ERROR \"\${msg}\")
else()
set(msg \"${name} ${step} command succeeded. See also ${logbase}-*.log\\n\")
message(STATUS \"\${msg}\")
endif()
")
set(command ${CMAKE_COMMAND} ${make} ${config} -P ${script})
set(${cmd_var} "${command}" PARENT_SCOPE)
endfunction()
# This module used to use "/${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()
function(_ep_get_step_stampfile name step stampfile_var)
ExternalProject_Get_Property(${name} stamp_dir)
_ep_get_configuration_subdir_suffix(cfgdir)
set(stampfile "${stamp_dir}${cfgdir}/${name}-${step}")
set(${stampfile_var} "${stampfile}" PARENT_SCOPE)
endfunction()
function(ExternalProject_Add_StepTargets name)
set(steps ${ARGN})
foreach(step ${steps})
_ep_get_step_stampfile(${name} ${step} stamp_file)
add_custom_target(${name}-${step}
DEPENDS ${stamp_file})
set_property(TARGET ${name}-${step} PROPERTY LABELS ${name})
set_property(TARGET ${name}-${step} PROPERTY FOLDER "ExternalProjectTargets/${name}")
# Depend on other external projects (target-level).
get_property(deps TARGET ${name} PROPERTY _EP_DEPENDS)
foreach(arg IN LISTS deps)
add_dependencies(${name}-${step} ${arg})
endforeach()
endforeach()
endfunction()
function(ExternalProject_Add_Step name step)
set(cmf_dir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles)
_ep_get_configuration_subdir_suffix(cfgdir)
set(complete_stamp_file "${cmf_dir}${cfgdir}/${name}-complete")
_ep_get_step_stampfile(${name} ${step} stamp_file)
_ep_parse_arguments(ExternalProject_Add_Step
${name} _EP_${step}_ "${ARGN}")
get_property(exclude_from_main TARGET ${name} PROPERTY _EP_${step}_EXCLUDE_FROM_MAIN)
if(NOT exclude_from_main)
add_custom_command(APPEND
OUTPUT ${complete_stamp_file}
DEPENDS ${stamp_file}
)
endif()
# Steps depending on this step.
get_property(dependers TARGET ${name} PROPERTY _EP_${step}_DEPENDERS)
foreach(depender IN LISTS dependers)
_ep_get_step_stampfile(${name} ${depender} depender_stamp_file)
add_custom_command(APPEND
OUTPUT ${depender_stamp_file}
DEPENDS ${stamp_file}
)
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)
_ep_get_step_stampfile(${name} ${dependee} dependee_stamp_file)
list(APPEND depends ${dependee_stamp_file})
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 "${command}")
endif()
# Replace location tags.
_ep_replace_location_tags(${name} comment command work_dir)
# 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_file} PROPERTY SYMBOLIC 1)
set(touch)
else()
set(touch ${CMAKE_COMMAND} -E touch ${stamp_file})
endif()
# Wrap with log script?
get_property(log TARGET ${name} PROPERTY _EP_${step}_LOG)
if(command AND log)
_ep_write_log_script(${name} ${step} command)
endif()
add_custom_command(
OUTPUT ${stamp_file}
COMMENT ${comment}
COMMAND ${command}
COMMAND ${touch}
DEPENDS ${depends}
WORKING_DIRECTORY ${work_dir}
VERBATIM
)
# Add custom "step target"?
get_property(step_targets TARGET ${name} PROPERTY _EP_STEP_TARGETS)
if(NOT step_targets)
get_property(step_targets DIRECTORY PROPERTY EP_STEP_TARGETS)
endif()
foreach(st ${step_targets})
if("${st}" STREQUAL "${step}")
ExternalProject_Add_StepTargets(${name} ${step})
break()
endif()
endforeach()
endfunction()
function(_ep_add_mkdir_command name)
ExternalProject_Get_Property(${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 ${download_dir}
)
endfunction()
function(_ep_get_git_version git_EXECUTABLE git_version_var)
if(git_EXECUTABLE)
execute_process(
COMMAND "${git_EXECUTABLE}" --version
OUTPUT_VARIABLE ov
ERROR_VARIABLE ev
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(hg_repository TARGET ${name} PROPERTY _EP_HG_REPOSITORY )
get_property(url TARGET ${name} PROPERTY _EP_URL)
get_property(fname TARGET ${name} PROPERTY _EP_DOWNLOAD_NAME)
# TODO: Perhaps file:// should be copied to download dir before extraction.
string(REGEX REPLACE "^file://" "" url "${url}")
set(depends)
set(comment)
set(work_dir)
if(cmd_set)
set(work_dir ${download_dir})
elseif(cvs_repository)
find_package(CVS QUIET)
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 QUIET)
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)
get_property(svn_trust_cert TARGET ${name} PROPERTY _EP_SVN_TRUST_CERT)
set(repository "${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(svn_user_pw_args "")
if(DEFINED svn_username)
set(svn_user_pw_args ${svn_user_pw_args} "--username=${svn_username}")
endif()
if(DEFINED svn_password)
set(svn_user_pw_args ${svn_user_pw_args} "--password=${svn_password}")
endif()
if(svn_trust_cert)
set(svn_trust_cert_args --trust-server-cert)
endif()
set(cmd ${Subversion_SVN_EXECUTABLE} co ${svn_repository} ${svn_revision}
--non-interactive ${svn_trust_cert_args} ${svn_user_pw_args} ${src_name})
list(APPEND depends ${stamp_dir}/${name}-svninfo.txt)
elseif(git_repository)
find_package(Git QUIET)
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()
get_property(git_submodules TARGET ${name} PROPERTY _EP_GIT_SUBMODULES)
# For the download step, and the git clone operation, only the repository
# should be recorded in a configured RepositoryInfo file. If the repo
# changes, the clone script should be run again. But if only the tag
# changes, avoid running the clone script again. Let the 'always' running
# update step checkout the new tag.
#
set(repository ${git_repository})
set(module)
set(tag)
configure_file(
"${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} ${git_tag} "${git_submodules}" ${src_name} ${work_dir}
${stamp_dir}/${name}-gitinfo.txt ${stamp_dir}/${name}-gitclone-lastrun.txt
)
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(hg_repository)
find_package(Hg QUIET)
if(NOT HG_EXECUTABLE)
message(FATAL_ERROR "error: could not find hg for clone of ${name}")
endif()
get_property(hg_tag TARGET ${name} PROPERTY _EP_HG_TAG)
if(NOT hg_tag)
set(hg_tag "tip")
endif()
# For the download step, and the hg clone operation, only the repository
# should be recorded in a configured RepositoryInfo file. If the repo
# changes, the clone script should be run again. But if only the tag
# changes, avoid running the clone script again. Let the 'always' running
# update step checkout the new tag.
#
set(repository ${hg_repository})
set(module)
set(tag)
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-hginfo.txt"
@ONLY
)
get_filename_component(src_name "${source_dir}" NAME)
get_filename_component(work_dir "${source_dir}" PATH)
# Since hg 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 hg clone.
#
_ep_write_hgclone_script(${tmp_dir}/${name}-hgclone.cmake ${source_dir}
${HG_EXECUTABLE} ${hg_repository} ${hg_tag} ${src_name} ${work_dir}
${stamp_dir}/${name}-hginfo.txt ${stamp_dir}/${name}-hgclone-lastrun.txt
)
set(comment "Performing download step (hg clone) for '${name}'")
set(cmd ${CMAKE_COMMAND} -P ${tmp_dir}/${name}-hgclone.cmake)
list(APPEND depends ${stamp_dir}/${name}-hginfo.txt)
elseif(url)
get_filename_component(work_dir "${source_dir}" PATH)
get_property(hash TARGET ${name} PROPERTY _EP_URL_HASH)
if(hash AND NOT "${hash}" MATCHES "${_ep_hash_regex}")
message(FATAL_ERROR "URL_HASH is set to\n ${hash}\n"
"but must be ALGO=value where ALGO is\n ${_ep_hash_algos}\n"
"and value is a hex string.")
endif()
get_property(md5 TARGET ${name} PROPERTY _EP_URL_MD5)
if(md5 AND NOT "MD5=${md5}" MATCHES "${_ep_hash_regex}")
message(FATAL_ERROR "URL_MD5 is set to\n ${md5}\nbut must be a hex string.")
endif()
if(md5 AND NOT hash)
set(hash "MD5=${md5}")
endif()
set(repository "external project URL")
set(module "${url}")
set(tag "${hash}")
set(retries 0)
set(download_script "")
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?
if("x${fname}" STREQUAL "x")
string(REGEX MATCH "[^/\\?]*$" fname "${url}")
endif()
if(NOT "${fname}" MATCHES "(\\.|=)(7z|tar|tar\\.bz2|tar\\.gz|tar\\.xz|tbz2|tgz|txz|zip)$")
string(REGEX MATCH "([^/\\?]+(\\.|=)(7z|tar|tar\\.bz2|tar\\.gz|tar\\.xz|tbz2|tgz|txz|zip))/.*$" match_result "${url}")
set(fname "${CMAKE_MATCH_1}")
endif()
if(NOT "${fname}" MATCHES "(\\.|=)(7z|tar|tar\\.bz2|tar\\.gz|tar\\.xz|tbz2|tgz|txz|zip)$")
message(FATAL_ERROR "Could not extract tarball filename from url:\n ${url}")
endif()
string(REPLACE ";" "-" fname "${fname}")
set(file ${download_dir}/${fname})
get_property(timeout TARGET ${name} PROPERTY _EP_TIMEOUT)
get_property(no_progress TARGET ${name} PROPERTY _EP_DOWNLOAD_NO_PROGRESS)
get_property(tls_verify TARGET ${name} PROPERTY _EP_TLS_VERIFY)
get_property(tls_cainfo TARGET ${name} PROPERTY _EP_TLS_CAINFO)
set(download_script "${stamp_dir}/download-${name}.cmake")
_ep_write_downloadfile_script("${download_script}" "${url}" "${file}" "${timeout}" "${no_progress}" "${hash}" "${tls_verify}" "${tls_cainfo}")
set(cmd ${CMAKE_COMMAND} -P "${download_script}"
COMMAND)
set(retries 3)
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}" "${hash}" "${retries}" "${download_script}")
list(APPEND cmd ${CMAKE_COMMAND} -P ${stamp_dir}/verify-${name}.cmake
COMMAND)
_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, HG_REPOSITORY or DOWNLOAD_COMMAND")
endif()
endif()
get_property(log TARGET ${name} PROPERTY _EP_LOG_DOWNLOAD)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} download
COMMENT ${comment}
COMMAND ${cmd}
WORKING_DIRECTORY ${work_dir}
DEPENDS ${depends}
DEPENDEES mkdir
${log}
)
endfunction()
function(_ep_add_update_command name)
ExternalProject_Get_Property(${name} source_dir tmp_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)
get_property(hg_repository TARGET ${name} PROPERTY _EP_HG_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)
get_property(svn_trust_cert TARGET ${name} PROPERTY _EP_SVN_TRUST_CERT)
set(svn_user_pw_args "")
if(DEFINED svn_username)
set(svn_user_pw_args ${svn_user_pw_args} "--username=${svn_username}")
endif()
if(DEFINED svn_password)
set(svn_user_pw_args ${svn_user_pw_args} "--password=${svn_password}")
endif()
if(svn_trust_cert)
set(svn_trust_cert_args --trust-server-cert)
endif()
set(cmd ${Subversion_SVN_EXECUTABLE} up ${svn_revision}
--non-interactive ${svn_trust_cert_args} ${svn_user_pw_args})
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 ${source_dir})
set(comment "Performing update step for '${name}'")
get_property(git_tag TARGET ${name} PROPERTY _EP_GIT_TAG)
if(NOT git_tag)
set(git_tag "master")
endif()
get_property(git_submodules TARGET ${name} PROPERTY _EP_GIT_SUBMODULES)
_ep_write_gitupdate_script(${tmp_dir}/${name}-gitupdate.cmake
${GIT_EXECUTABLE} ${git_tag} "${git_submodules}" ${git_repository} ${work_dir}
)
set(cmd ${CMAKE_COMMAND} -P ${tmp_dir}/${name}-gitupdate.cmake)
set(always 1)
elseif(hg_repository)
if(NOT HG_EXECUTABLE)
message(FATAL_ERROR "error: could not find hg for pull of ${name}")
endif()
set(work_dir ${source_dir})
set(comment "Performing update step (hg pull) for '${name}'")
get_property(hg_tag TARGET ${name} PROPERTY _EP_HG_TAG)
if(NOT hg_tag)
set(hg_tag "tip")
endif()
if("${HG_VERSION_STRING}" STREQUAL "2.1")
message(WARNING "Mercurial 2.1 does not distinguish an empty pull from a failed pull:
http://mercurial.selenic.com/wiki/UpgradeNotes#A2.1.1:_revert_pull_return_code_change.2C_compile_issue_on_OS_X
http://thread.gmane.org/gmane.comp.version-control.mercurial.devel/47656
Update to Mercurial >= 2.1.1.
")
endif()
set(cmd ${HG_EXECUTABLE} pull
COMMAND ${HG_EXECUTABLE} update ${hg_tag}
)
set(always 1)
endif()
get_property(log TARGET ${name} PROPERTY _EP_LOG_UPDATE)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} update
COMMENT ${comment}
COMMAND ${cmd}
ALWAYS ${always}
WORKING_DIRECTORY ${work_dir}
DEPENDEES download
${log}
)
endfunction()
function(_ep_add_patch_command name)
ExternalProject_Get_Property(${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 ${work_dir}
DEPENDEES download
)
endfunction()
# TODO: Make sure external projects use the proper compiler
function(_ep_add_configure_command name)
ExternalProject_Get_Property(${name} source_dir binary_dir tmp_dir)
# 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(is_ep TARGET ${dep} PROPERTY _EP_IS_EXTERNAL_PROJECT)
if(is_ep)
_ep_get_step_stampfile(${dep} "done" done_stamp_file)
list(APPEND file_deps ${done_stamp_file})
endif()
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})
# If there are any CMAKE_CACHE_ARGS, write an initial cache and use it
get_property(cmake_cache_args TARGET ${name} PROPERTY _EP_CMAKE_CACHE_ARGS)
if(cmake_cache_args)
set(_ep_cache_args_script "${tmp_dir}/${name}-cache.cmake")
_ep_write_initial_cache(${name} "${_ep_cache_args_script}" "${cmake_cache_args}")
list(APPEND cmd "-C${_ep_cache_args_script}")
endif()
get_target_property(cmake_generator ${name} _EP_CMAKE_GENERATOR)
get_target_property(cmake_generator_platform ${name} _EP_CMAKE_GENERATOR_PLATFORM)
get_target_property(cmake_generator_toolset ${name} _EP_CMAKE_GENERATOR_TOOLSET)
if(cmake_generator)
list(APPEND cmd "-G${cmake_generator}")
if(cmake_generator_platform)
list(APPEND cmd "-DCMAKE_GENERATOR_PLATFORM=${cmake_generator_platform}")
endif()
if(cmake_generator_toolset)
list(APPEND cmd "-T${cmake_generator_toolset}")
endif()
else()
if(CMAKE_EXTRA_GENERATOR)
list(APPEND cmd "-G${CMAKE_EXTRA_GENERATOR} - ${CMAKE_GENERATOR}")
else()
list(APPEND cmd "-G${CMAKE_GENERATOR}")
endif()
if(cmake_generator_platform)
message(FATAL_ERROR "Option CMAKE_GENERATOR_PLATFORM not allowed without CMAKE_GENERATOR.")
endif()
if(CMAKE_GENERATOR_PLATFORM)
list(APPEND cmd "-DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}")
endif()
if(cmake_generator_toolset)
message(FATAL_ERROR "Option CMAKE_GENERATOR_TOOLSET not allowed without CMAKE_GENERATOR.")
endif()
if(CMAKE_GENERATOR_TOOLSET)
list(APPEND cmd "-T${CMAKE_GENERATOR_TOOLSET}")
endif()
endif()
list(APPEND cmd "${source_dir}")
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)
list(APPEND file_deps ${_ep_cache_args_script})
get_property(log TARGET ${name} PROPERTY _EP_LOG_CONFIGURE)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} configure
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES update patch
DEPENDS ${file_deps}
${log}
)
endfunction()
function(_ep_add_build_command name)
ExternalProject_Get_Property(${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()
get_property(log TARGET ${name} PROPERTY _EP_LOG_BUILD)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
get_property(build_always TARGET ${name} PROPERTY _EP_BUILD_ALWAYS)
if(build_always)
set(always 1)
else()
set(always 0)
endif()
ExternalProject_Add_Step(${name} build
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES configure
ALWAYS ${always}
${log}
)
endfunction()
function(_ep_add_install_command name)
ExternalProject_Get_Property(${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()
get_property(log TARGET ${name} PROPERTY _EP_LOG_INSTALL)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} install
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES build
${log}
)
endfunction()
function(_ep_add_test_command name)
ExternalProject_Get_Property(${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()
get_property(log TARGET ${name} PROPERTY _EP_LOG_TEST)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} test
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
${dep_args}
${log}
)
endif()
endfunction()
function(ExternalProject_Add name)
_ep_get_configuration_subdir_suffix(cfgdir)
# Add a custom target for the external project.
set(cmf_dir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles)
set(complete_stamp_file "${cmf_dir}${cfgdir}/${name}-complete")
# The "ALL" option to add_custom_target just tells it to not set the
# EXCLUDE_FROM_ALL target property. Later, if the EXCLUDE_FROM_ALL
# argument was passed, we explicitly set it for the target.
add_custom_target(${name} ALL DEPENDS ${complete_stamp_file})
set_property(TARGET ${name} PROPERTY _EP_IS_EXTERNAL_PROJECT 1)
set_property(TARGET ${name} PROPERTY LABELS ${name})
set_property(TARGET ${name} PROPERTY FOLDER "ExternalProjectTargets/${name}")
_ep_parse_arguments(ExternalProject_Add ${name} _EP_ "${ARGN}")
_ep_set_directories(${name})
_ep_get_step_stampfile(${name} "done" done_stamp_file)
_ep_get_step_stampfile(${name} "install" install_stamp_file)
# Set the EXCLUDE_FROM_ALL target property if required.
get_property(exclude_from_all TARGET ${name} PROPERTY _EP_EXCLUDE_FROM_ALL)
if(exclude_from_all)
set_property(TARGET ${name} PROPERTY EXCLUDE_FROM_ALL TRUE)
endif()
# 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, which may cause problems during
# parallel builds. However, the Ninja generator needs to see the entire
# dependency graph, and can cope with custom commands belonging to
# multiple targets, so we add the 'done' mark as an output for Ninja only.
set(complete_outputs ${complete_stamp_file})
if(${CMAKE_GENERATOR} MATCHES "Ninja")
set(complete_outputs ${complete_outputs} ${done_stamp_file})
endif()
add_custom_command(
OUTPUT ${complete_outputs}
COMMENT "Completed '${name}'"
COMMAND ${CMAKE_COMMAND} -E make_directory ${cmf_dir}${cfgdir}
COMMAND ${CMAKE_COMMAND} -E touch ${complete_stamp_file}
COMMAND ${CMAKE_COMMAND} -E touch ${done_stamp_file}
DEPENDS ${install_stamp_file}
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()
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