# Distributed under the OSI-approved BSD 3-Clause License. See accompanying | |
# file Copyright.txt or https://cmake.org/licensing for details. | |
cmake_minimum_required(VERSION 3.5) | |
function(check_file_hash has_hash hash_is_good) | |
if("${has_hash}" STREQUAL "") | |
message(FATAL_ERROR "has_hash Can't be empty") | |
endif() | |
if("${hash_is_good}" STREQUAL "") | |
message(FATAL_ERROR "hash_is_good Can't be empty") | |
endif() | |
if("@ALGO@" STREQUAL "") | |
# No check | |
set("${has_hash}" FALSE PARENT_SCOPE) | |
set("${hash_is_good}" FALSE PARENT_SCOPE) | |
return() | |
endif() | |
set("${has_hash}" TRUE PARENT_SCOPE) | |
message(STATUS "verifying file... | |
file='@LOCAL@'") | |
file("@ALGO@" "@LOCAL@" actual_value) | |
if(NOT "${actual_value}" STREQUAL "@EXPECT_VALUE@") | |
set("${hash_is_good}" FALSE PARENT_SCOPE) | |
message(STATUS "@ALGO@ hash of | |
@LOCAL@ | |
does not match expected value | |
expected: '@EXPECT_VALUE@' | |
actual: '${actual_value}'") | |
else() | |
set("${hash_is_good}" TRUE PARENT_SCOPE) | |
endif() | |
endfunction() | |
function(sleep_before_download attempt) | |
if(attempt EQUAL 0) | |
return() | |
endif() | |
if(attempt EQUAL 1) | |
message(STATUS "Retrying...") | |
return() | |
endif() | |
set(sleep_seconds 0) | |
if(attempt EQUAL 2) | |
set(sleep_seconds 5) | |
elseif(attempt EQUAL 3) | |
set(sleep_seconds 5) | |
elseif(attempt EQUAL 4) | |
set(sleep_seconds 15) | |
elseif(attempt EQUAL 5) | |
set(sleep_seconds 60) | |
elseif(attempt EQUAL 6) | |
set(sleep_seconds 90) | |
elseif(attempt EQUAL 7) | |
set(sleep_seconds 300) | |
else() | |
set(sleep_seconds 1200) | |
endif() | |
message(STATUS "Retry after ${sleep_seconds} seconds (attempt #${attempt}) ...") | |
execute_process(COMMAND "${CMAKE_COMMAND}" -E sleep "${sleep_seconds}") | |
endfunction() | |
if("@LOCAL@" STREQUAL "") | |
message(FATAL_ERROR "LOCAL can't be empty") | |
endif() | |
if("@REMOTE@" STREQUAL "") | |
message(FATAL_ERROR "REMOTE can't be empty") | |
endif() | |
if(EXISTS "@LOCAL@") | |
check_file_hash(has_hash hash_is_good) | |
if(has_hash) | |
if(hash_is_good) | |
message(STATUS "File already exists and hash match (skip download): | |
file='@LOCAL@' | |
@ALGO@='@EXPECT_VALUE@'" | |
) | |
return() | |
else() | |
message(STATUS "File already exists but hash mismatch. Removing...") | |
file(REMOVE "@LOCAL@") | |
endif() | |
else() | |
message(STATUS "File already exists but no hash specified (use URL_HASH): | |
file='@LOCAL@' | |
Old file will be removed and new file downloaded from URL." | |
) | |
file(REMOVE "@LOCAL@") | |
endif() | |
endif() | |
set(retry_number 5) | |
message(STATUS "Downloading... | |
dst='@LOCAL@' | |
timeout='@TIMEOUT_MSG@'" | |
) | |
foreach(i RANGE ${retry_number}) | |
sleep_before_download(${i}) | |
foreach(url @REMOTE@) | |
message(STATUS "Using src='${url}'") | |
@TLS_VERIFY_CODE@ | |
@TLS_CAINFO_CODE@ | |
file( | |
DOWNLOAD | |
"${url}" "@LOCAL@" | |
@SHOW_PROGRESS@ | |
@TIMEOUT_ARGS@ | |
STATUS status | |
LOG log | |
@USERPWD_ARGS@ | |
@HTTP_HEADERS_ARGS@ | |
) | |
list(GET status 0 status_code) | |
list(GET status 1 status_string) | |
if(status_code EQUAL 0) | |
check_file_hash(has_hash hash_is_good) | |
if(has_hash AND NOT hash_is_good) | |
message(STATUS "Hash mismatch, removing...") | |
file(REMOVE "@LOCAL@") | |
else() | |
message(STATUS "Downloading... done") | |
return() | |
endif() | |
else() | |
string(APPEND logFailedURLs "error: downloading '${url}' failed | |
status_code: ${status_code} | |
status_string: ${status_string} | |
log: | |
--- LOG BEGIN --- | |
${log} | |
--- LOG END --- | |
" | |
) | |
endif() | |
endforeach() | |
endforeach() | |
message(FATAL_ERROR "Each download failed! | |
${logFailedURLs} | |
" | |
) |