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Import cmake improvement by Daan De Meyer
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,51 +1,52 @@ | ||
| # Downloads and extracts the 7-Zip MSI installer from https://www.7-zip.org/. | ||
| # | ||
| # Returns the extracted 7-Zip directory in DOWNLOADED_7ZIP_DIR | ||
| # | ||
| # Downloads 7-Zip to extract LLVM if it isn't available in the PATH | ||
| function(download_and_extract_7zip) | ||
| function(download_and_extract_7zip 7ZIP_DOWNLOAD_LOCATION) | ||
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| set(7ZIP_VERSION 1801) | ||
| set(7ZIP_EXT .msi) | ||
| set(7ZIP_NAME 7z${7ZIP_VERSION}-x64) | ||
| set(7ZIP_FULL_NAME ${7ZIP_NAME}${7ZIP_EXT}) | ||
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| set(7ZIP_FILE ${CMAKE_BINARY_DIR}/${7ZIP_FULL_NAME}) | ||
| set(7ZIP_EXTRACT_DIR ${CMAKE_BINARY_DIR}/${7ZIP_NAME}) | ||
| set(7ZIP_FILE ${7ZIP_DOWNLOAD_LOCATION}/${7ZIP_FULL_NAME}) | ||
| set(7ZIP_EXTRACT_DIR ${7ZIP_DOWNLOAD_LOCATION}/${7ZIP_NAME}) | ||
| set(7ZIP_URL https://www.7-zip.org/a/${7ZIP_FULL_NAME}) | ||
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| # msiexec requires Windows path separators (\) | ||
| file(TO_NATIVE_PATH ${7ZIP_FILE} 7ZIP_FILE) | ||
| file(TO_NATIVE_PATH ${7ZIP_EXTRACT_DIR} 7ZIP_EXTRACT_DIR) | ||
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| if(NOT EXISTS ${7ZIP_FILE}) | ||
| message(STATUS "Downloading 7-Zip ${7ZIP_VERSION} (${7ZIP_URL}) ...") | ||
| file(DOWNLOAD ${7ZIP_URL} ${7ZIP_FILE}) | ||
| # Exit if 7-Zip is already downloaded and extracted | ||
| find_program(7ZIP_EXECUTABLE 7z NO_DEFAULT_PATH | ||
| PATHS ${7ZIP_EXTRACT_DIR}/Files/7-Zip) | ||
| if(7ZIP_EXECUTABLE) | ||
| message(STATUS "7-Zip already downloaded") | ||
| return() | ||
| endif() | ||
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| if(NOT EXISTS ${7ZIP_EXTRACT_DIR}) | ||
| message(STATUS "Downloading 7-Zip ${7ZIP_VERSION} (${7ZIP_URL}) ...") | ||
| file(DOWNLOAD ${7ZIP_URL} ${7ZIP_FILE}) | ||
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| find_program(MSIEXEC_EXECUTABLE msiexec) | ||
| if(NOT MSIEXEC_EXECUTABLE) | ||
| message(FATAL_ERROR "Unable to find msiexec (required to extract 7-Zip msi \ | ||
| find_program(MSIEXEC_EXECUTABLE msiexec) | ||
| if(NOT MSIEXEC_EXECUTABLE) | ||
| message(FATAL_ERROR "Unable to find msiexec (required to extract 7-Zip msi \ | ||
| installer). Install 7-Zip yourself and make sure it is available in the path") | ||
| endif() | ||
| endif() | ||
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| message(STATUS "Extracting downloaded 7-Zip ...") | ||
| message(STATUS "Extracting downloaded 7-Zip ...") | ||
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| # msiexec with /a option allows extraction of msi installers without requiring | ||
| # admin privileges. We use this to extract the 7-Zip installer without | ||
| # requiring any actions from the user | ||
| execute_process(COMMAND ${MSIEXEC_EXECUTABLE} /a ${7ZIP_FILE} /qn | ||
| TARGETDIR=${7ZIP_EXTRACT_DIR} | ||
| OUTPUT_QUIET) | ||
| endif() | ||
| # msiexec requires Windows path separators (\) | ||
| file(TO_NATIVE_PATH ${7ZIP_FILE} 7ZIP_FILE) | ||
| file(TO_NATIVE_PATH ${7ZIP_EXTRACT_DIR} 7ZIP_EXTRACT_DIR) | ||
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| # msiexec with /a option allows extraction of msi installers without requiring | ||
| # admin privileges. We use this to extract the 7-Zip installer without | ||
| # requiring any actions from the user | ||
| execute_process(COMMAND ${MSIEXEC_EXECUTABLE} /a ${7ZIP_FILE} /qn | ||
| TARGETDIR=${7ZIP_EXTRACT_DIR} | ||
| WORKING_DIRECTORY ${7ZIP_DOWNLOAD_LOCATION} | ||
| OUTPUT_QUIET) | ||
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| # Convert back to CMake separators (/) before returning | ||
| file(TO_CMAKE_PATH ${7ZIP_EXTRACT_DIR} 7ZIP_EXTRACT_DIR) | ||
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| # Actual directory is nested inside the extract directory. We return the nested | ||
| # directory instead of the extract directory | ||
| # Actual 7-Zip directory is nested inside the extract directory. | ||
| set(DOWNLOADED_7ZIP_DIR ${7ZIP_EXTRACT_DIR}/Files/7-Zip PARENT_SCOPE) | ||
|
|
||
| endfunction() |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| # Downloads and extracts the Clang archive for the current system from | ||
| # https://releases.llvm.org | ||
| # | ||
| # Returns the extracted Clang archive directory in DOWNLOADED_CLANG_DIR | ||
| # | ||
| # Downloads 7-Zip to extract Clang if it isn't available in the PATH | ||
| function(download_and_extract_clang CLANG_VERSION CLANG_DOWNLOAD_LOCATION) | ||
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| set(CLANG_ARCHIVE_EXT .tar.xz) | ||
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| if(${CMAKE_SYSTEM_NAME} STREQUAL Linux) | ||
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| set(CLANG_ARCHIVE_NAME | ||
| clang+llvm-${CLANG_VERSION}-x86_64-linux-gnu-ubuntu-14.04) | ||
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| elseif(${CMAKE_SYSTEM_NAME} STREQUAL Darwin) | ||
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| set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-x86_64-apple-darwin) | ||
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| elseif(${CMAKE_SYSTEM_NAME} STREQUAL Windows) | ||
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| set(CLANG_ARCHIVE_NAME LLVM-${CLANG_VERSION}-win64) | ||
| set(CLANG_ARCHIVE_EXT .exe) | ||
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| elseif(${CMAKE_SYSTEM_NAME} STREQUAL FreeBSD) | ||
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| if(${CLANG_VERSION} STREQUAL 6.0.0) | ||
| set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-amd64-unknown-freebsd-10) | ||
| else() | ||
| set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-amd64-unknown-freebsd10) | ||
| endif() | ||
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| endif() | ||
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| set(CLANG_ARCHIVE_FULL_NAME ${CLANG_ARCHIVE_NAME}${CLANG_ARCHIVE_EXT}) | ||
| set(CLANG_ARCHIVE_FILE ${CLANG_DOWNLOAD_LOCATION}/${CLANG_ARCHIVE_FULL_NAME}) | ||
| set(CLANG_ARCHIVE_EXTRACT_DIR ${CLANG_DOWNLOAD_LOCATION}/${CLANG_ARCHIVE_NAME}) | ||
| set(CLANG_ARCHIVE_URL | ||
| https://releases.llvm.org/${CLANG_VERSION}/${CLANG_ARCHIVE_FULL_NAME}) | ||
| set(CLANG_ARCHIVE_HASH_FILE | ||
| ${CMAKE_SOURCE_DIR}/clang_archive_hashes/${CLANG_ARCHIVE_FULL_NAME}.SHA256) | ||
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| # Exit if Clang is already downloaded and extracted | ||
| set(CLANG_ROOT ${CLANG_ARCHIVE_EXTRACT_DIR}) | ||
| find_package(Clang ${CLANG_VERSION} QUIET) | ||
| if(Clang_FOUND) | ||
| message(STATUS "Clang already downloaded") | ||
| set(DOWNLOADED_CLANG_DIR ${CLANG_ARCHIVE_EXTRACT_DIR} PARENT_SCOPE) | ||
| return() | ||
| endif() | ||
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| if(NOT CLANG_ARCHIVE_NAME) | ||
| message(FATAL_ERROR "No Clang archive url specified for current platform \ | ||
| (${CMAKE_SYSTEM_NAME}). Please file an issue to get it added.") | ||
| endif() | ||
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| if(NOT EXISTS ${CLANG_ARCHIVE_HASH_FILE}) | ||
| message(FATAL_ERROR "No SHA256 hash available for the current platform \ | ||
| (${CMAKE_SYSTEM_NAME}) + clang version (${CLANG_VERSION}) combination. Please \ | ||
| file an issue to get it added.") | ||
| endif() | ||
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| # Download Clang archive | ||
| message(STATUS "Downloading Clang ${CLANG_VERSION} (${CLANG_ARCHIVE_URL}) ...") | ||
| file(DOWNLOAD ${CLANG_ARCHIVE_URL} ${CLANG_ARCHIVE_FILE} | ||
| STATUS CLANG_ARCHIVE_DOWNLOAD_RESULT) | ||
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| # Abort if download failed | ||
| list(GET ${CLANG_ARCHIVE_DOWNLOAD_RESULT} 0 ERROR_CODE) | ||
| if(${ERROR_CODE}) | ||
| list(GET ${CLANG_ARCHIVE_DOWNLOAD_RESULT} 1 ERROR_STRING) | ||
| message(FATAL_ERROR ${ERROR_STRING}) | ||
| endif() | ||
|
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| # Retrieve expected hash from file and strip newline | ||
| file(READ ${CLANG_ARCHIVE_HASH_FILE} CLANG_ARCHIVE_EXPECTED_HASH) | ||
| string(STRIP ${CLANG_ARCHIVE_EXPECTED_HASH} CLANG_ARCHIVE_EXPECTED_HASH) | ||
| # Calculate actual hash | ||
| file(SHA256 ${CLANG_ARCHIVE_FILE} CLANG_ARCHIVE_HASH) | ||
| # Abort if hashes do not match | ||
| if(NOT ${CLANG_ARCHIVE_EXPECTED_HASH} STREQUAL ${CLANG_ARCHIVE_HASH}) | ||
| message(FATAL_ERROR "SHA256 hash of downloaded Clang does not match \ | ||
| expected hash. Remove the build directory and try running CMake again. If this \ | ||
| keeps happening, file an issue to report the problem.") | ||
| endif() | ||
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| if(${CLANG_ARCHIVE_EXT} STREQUAL .exe) | ||
| # Download and extract 7-zip if not found in PATH | ||
| find_program(7ZIP_EXECUTABLE 7z) | ||
| if(NOT 7ZIP_EXECUTABLE) | ||
| message(STATUS "7-Zip not found in PATH") | ||
|
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| include(DownloadAndExtract7zip) | ||
| download_and_extract_7zip(${CLANG_DOWNLOAD_LOCATION}) | ||
| find_program(7ZIP_EXECUTABLE 7z NO_DEFAULT_PATH | ||
| PATHS ${DOWNLOADED_7ZIP_DIR}) | ||
| else() | ||
| message(STATUS "7-Zip found in PATH") | ||
| endif() | ||
|
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| message(STATUS "Extracting downloaded Clang with 7-Zip ...") | ||
|
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| # Avoid running the Clang installer by extracting the exe with 7-Zip | ||
| execute_process(COMMAND ${7ZIP_EXECUTABLE} x | ||
| -o${CLANG_ARCHIVE_EXTRACT_DIR} | ||
| -xr!$PLUGINSDIR ${CLANG_ARCHIVE_FILE} | ||
| WORKING_DIRECTORY ${CLANG_DOWNLOAD_LOCATION} | ||
| OUTPUT_QUIET) | ||
|
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| elseif(${CLANG_ARCHIVE_EXT} STREQUAL .tar.xz) | ||
| message(STATUS "Extracting downloaded Clang with CMake built-in tar ...") | ||
|
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| # CMake has builtin support for tar via the -E flag | ||
| execute_process(COMMAND ${CMAKE_COMMAND} -E tar -xf ${CLANG_ARCHIVE_FILE} | ||
| # Specify working directory to allow running cmake from | ||
| # everywhere | ||
| # (example: cmake -H"$HOME/ccls" -B"$home/ccls/build") | ||
| WORKING_DIRECTORY ${CLANG_DOWNLOAD_LOCATION} | ||
| OUTPUT_QUIET) | ||
| endif() | ||
|
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| set(DOWNLOADED_CLANG_DIR ${CLANG_ARCHIVE_EXTRACT_DIR} PARENT_SCOPE) | ||
|
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||
| endfunction() |
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