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Improve CMake cache management

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This commit is contained in:
Rogiel Sulzbach
2020-03-17 22:54:30 -03:00
parent e302748083
commit 6528d44e20
2 changed files with 32 additions and 14 deletions
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42
DependencyDeclaration.cmake.in
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@@ -1,20 +1,15 @@
set(@DEPENDENCY_NAME@_URL
"@DEPENDENCY_URL@"
CACHE STRING "A path that points to a @DEPENDENCY_NAME@ URL to be downloaded. CMake will use this URL to download the file if needed.")
set(@DEPENDENCY_NAME@_DIR
${CMDEP_ROOT_DIR}/@DEPENDENCY_NAME@
CACHE PATH "A path that points to a @DEPENDENCY_NAME@ directory containing it's sources.")
set(@DEPENDENCY_NAME@_URL "@DEPENDENCY_URL@")
set(@DEPENDENCY_NAME@_DIR ${CMDEP_ROOT_DIR}/@DEPENDENCY_NAME@)
set(@DEPENDENCY_NAME@_LOCK ${CMDEP_ROOT_DIR})
set(@DEPENDENCY_NAME@_DOT_CMDEP_SOURCE_FILE "${@DEPENDENCY_NAME@_DIR}/.cmdep-source")
set(@DEPENDENCY_NAME@_SOURCE_DIR
${@DEPENDENCY_NAME@_DIR}
CACHE PATH "A path that points to a @DEPENDENCY_NAME@ source directory. If manually set, no downloading or extraction will take place and this will be used instead.")
${@DEPENDENCY_NAME@_DIR} CACHE PATH
"A path that points to a @DEPENDENCY_NAME@ source directory. If manually set, no downloading or extraction will take place and this will be used instead.")
set(@DEPENDENCY_NAME@_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/@DEPENDENCY_NAME@)
get_filename_component(@DEPENDENCY_NAME@_DOWNLOAD_NAME "${@DEPENDENCY_NAME@_URL}" NAME CACHE)
set(@DEPENDENCY_NAME@_ZIP
${CMDEP_ZIP_DIR}/${@DEPENDENCY_NAME@_DOWNLOAD_NAME}
CACHE PATH "A path that points to a @DEPENDENCY_NAME@ zip file. If this file does not exists, it will be downloaded.")
get_filename_component(@DEPENDENCY_NAME@_DOWNLOAD_NAME "${@DEPENDENCY_NAME@_URL}" NAME)
set(@DEPENDENCY_NAME@_ZIP ${CMDEP_ZIP_DIR}/${@DEPENDENCY_NAME@_DOWNLOAD_NAME})
# To prevent other concurrent CMake instances from trying to download or extract
# the file, we lock the source directory. This will guarantee that only a single
@@ -22,6 +17,22 @@ set(@DEPENDENCY_NAME@_ZIP
#
file(LOCK ${@DEPENDENCY_NAME@_LOCK} DIRECTORY GUARD FILE)
if(@DEPENDENCY_NAME@_SOURCE_DIR STREQUAL @DEPENDENCY_NAME@_DIR)
if(EXISTS "${@DEPENDENCY_NAME@_DOT_CMDEP_SOURCE_FILE}")
file(READ "${@DEPENDENCY_NAME@_DOT_CMDEP_SOURCE_FILE}" @DEPENDENCY_NAME@_CURRENT_SOURCE_URL)
if(NOT @DEPENDENCY_NAME@_CURRENT_SOURCE_URL STREQUAL @DEPENDENCY_NAME@_URL)
set(@DEPENDENCY_NAME@_SOURCE_CHANGED TRUE)
endif()
else()
set(@DEPENDENCY_NAME@_SOURCE_CHANGED TRUE)
endif()
endif()
if(@DEPENDENCY_NAME@_SOURCE_CHANGED)
message(STATUS "@DEPENDENCY_NAME@: Source has changed. Redownloading...")
file(REMOVE_RECURSE ${@DEPENDENCY_NAME@_DIR})
endif()
if(NOT EXISTS ${@DEPENDENCY_NAME@_SOURCE_DIR})
if(NOT EXISTS ${@DEPENDENCY_NAME@_ZIP})
get_filename_component(@DEPENDENCY_NAME@_ZIP_DIRECTORY "${@DEPENDENCY_NAME@_ZIP}" DIRECTORY)
@@ -87,6 +98,13 @@ if(NOT EXISTS ${@DEPENDENCY_NAME@_SOURCE_DIR})
#
message(STATUS "@DEPENDENCY_NAME@: extracting... [clean up]")
file(REMOVE_RECURSE "${tmp_dir}")
file(WRITE "${@DEPENDENCY_NAME@_DOT_CMDEP_SOURCE_FILE}" "${@DEPENDENCY_NAME@_URL}")
set(@DEPENDENCY_NAME@_SOURCE_DIR
${@DEPENDENCY_NAME@_DIR} CACHE PATH
"A path that points to a @DEPENDENCY_NAME@ source directory. If manually set, no downloading or extraction will take place and this will be used instead."
FORCE)
endif()
# We are now done. We can unlock the CMake directory and proceed.