全部。
我决定使用新的 cmake 宏来下载外部依赖项。我从 Catch2 库的文档中获取了示例代码。
include(FetchContent)
FetchContent_Declare(
Catch2
GIT_REPOSITORY https://github.com/catchorg/Catch2.git
GIT_TAG v2.13.4
)
FetchContent_GetProperties(Catch2)
if(NOT Catch2_POPULATED)
FetchContent_Populate(Catch2)
add_subdirectory(${catch2_SOURCE_DIR} ${catch2_BINARY_DIR})
endif()
该解决方案效果很好,除了能够在我离线时重新启动 cmake(没有 wifi 和移动网络,只有我和我的笔记本电脑)。我收到以下错误:
[0/7] Performing update step for 'catch2-populate'
fatal: «https://github.com/catchorg/Catch2.git/» недоступно: Could not resolve host: github.com
CMake Error at /Users/evgeny.proydakov/repository/ihft/build/_deps/catch2-subbuild/catch2-populate-prefix/tmp/catch2-populate-gitupdate.cmake:97 (execute_process):
execute_process failed command indexes:
1: "Child return code: 128"
FAILED: catch2-populate-prefix/src/catch2-populate-stamp/catch2-populate-update
cd /Users/evgeny.proydakov/repository/ihft/build/_deps/catch2-src && /usr/local/Cellar/cmake/3.20.1/bin/cmake -P /Users/evgeny.proydakov/repository/ihft/build/_deps/catch2-subbuild/catch2-populate-prefix/tmp/catch2-populate-gitupdate.cmake
ninja: build stopped: subcommand failed.
CMake Error at /usr/local/Cellar/cmake/3.20.1/share/cmake/Modules/FetchContent.cmake:1012 (message):
Build step for catch2 failed: 1
Call Stack (most recent call first):
/usr/local/Cellar/cmake/3.20.1/share/cmake/Modules/FetchContent.cmake:1141:EVAL:2 (__FetchContent_directPopulate)
/usr/local/Cellar/cmake/3.20.1/share/cmake/Modules/FetchContent.cmake:1141 (cmake_language)
/usr/local/Cellar/cmake/3.20.1/share/cmake/Modules/FetchContent.cmake:1184 (FetchContent_Populate)
.cmake/icmake.cmake:46 (FetchContent_MakeAvailable)
CMakeLists.txt:10 (include)
-- Configuring incomplete, errors occurred!
是否可以一次下载依赖项,检查修订并且不要每次都尝试连接到远程服务器?