neovim/cmake.deps/cmake/BuildTreesitterParsers.cmake
James McCoy 61da959bb4
build(deps): restore support for USE_EXISTING_SRC_DIR (#20491)
59d5f692f removed cmake.deps/cmake/DownloadAndExtractFile.cmake and
support for USE_EXISTING_SRC_DIR.  The Ubuntu nightly PPA still relies
on USE_EXISTING_SRC_DIR functionality since it can't access the network
during the build.

Supplying an empty value for ExternalProject_Add()'s URL value appears
to provide the needed mechanism to avoid re-downloading when the sources
are already present.  This is undocumented behavior, though, so it may
break in the future.

Now, if USE_EXISTING_SRC_DIR is set, the ExternalProject's URL variable
is unset, preventing the download and erroring out if the source doesn't
actually exist.
2022-10-06 15:14:38 +02:00

25 lines
1.0 KiB
CMake

function(BuildTSParser LANG TS_URL TS_SHA256 TS_CMAKE_FILE)
set(NAME treesitter-${LANG})
if(USE_EXISTING_SRC_DIR)
unset(TS_URL)
endif()
ExternalProject_Add(${NAME}
URL ${TS_URL}
URL_HASH SHA256=${TS_SHA256}
DOWNLOAD_NO_PROGRESS TRUE
DOWNLOAD_DIR ${DEPS_DOWNLOAD_DIR}/${NAME}
CMAKE_CACHE_ARGS
-DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES}
PATCH_COMMAND ${CMAKE_COMMAND} -E copy
${CMAKE_CURRENT_SOURCE_DIR}/cmake/${TS_CMAKE_FILE}
${DEPS_BUILD_DIR}/src/${NAME}/CMakeLists.txt
CMAKE_ARGS
-DCMAKE_INSTALL_PREFIX=${DEPS_INSTALL_DIR}
-DPARSERLANG=${LANG})
endfunction()
BuildTSParser(c ${TREESITTER_C_URL} ${TREESITTER_C_SHA256} TreesitterParserCMakeLists.txt)
BuildTSParser(lua ${TREESITTER_LUA_URL} ${TREESITTER_LUA_SHA256} TreesitterParserCMakeLists.txt)
BuildTSParser(vim ${TREESITTER_VIM_URL} ${TREESITTER_VIM_SHA256} TreesitterParserCMakeLists.txt)
BuildTSParser(help ${TREESITTER_HELP_URL} ${TREESITTER_HELP_SHA256} TreesitterParserCMakeLists.txt)