Manifest使用示例4 - Binarycaching使用缓存文件

在多人开发环境中，我们仅希望一个人管理项目需要的所有第三方库，并使用服务器部署和分发vcpkg中已编译的库，此时可以使用vcpkg的Binary source特性。

VCPKG 默认开启 Binarycaching 特性，默认情况下，依赖库的缓存文件存放在以下第一个路径下；如果没有设置第一个环境变量，则将放在第二个路径下；同样的，如果没有设置第一个和第二个环境变量，将会存放在第三个路径下。

Windows

%VCPKG_DEFAULT_BINARY_CACHE%
%LOCALAPPDATA%\vcpkg\archives
%APPDATA%\vcpkg\archives

非 Windows

$VCPKG_DEFAULT_BINARY_CACHE
$XDG_CACHE_HOME/vcpkg/archives
$HOME/.cache/vcpkg/archives

一、服务器主机：

1. 首先设置环境变量 VCPKG_DEFAULT_BINARY_CACHE 至公共目录：

PS F:\vcpkg> $env:VCPKG_DEFAULT_BINARY_CACHE=F:/Manifest-Binary/cache

2. 使用vcpkg的install命令安装需要的依赖库：

PS F:\vcpkg> ./vcpkg install sqlite3:x64-windows

3. 在公共目录 "F:\Manifest-Binary\cache" 下查看vcpkg缓存：

PS F:Manifest-Binary\cache> dir

Directory: G:\binarycaching


Mode LastWriteTime Length Name
---- ------------- ------ ----
d----- 10/10/2022 5:24 PM 4f

PS F:\Manifest-Binary\cache>cd 4f
PS F:\Manifest-Binary\cache\4f>dir

Directory: F:\Manifest-Binary\cache\4f


Mode LastWriteTime Length Name
---- ------------- ------ ----
-a---- 10/10/2022 5:23 PM 3329642 4f95bcae2db85409ba2e8c189788b17c6049ba1d07e51502081c10e159536083.zip

二、开发端主机：

此示例中开发端主机的CMake工程test2依赖于sqlite3。

1. 在工程文件夹中创建manifest文件并写入依赖内容

文件结构如下（根目录为 F:/Manifest-Binary）：
| --test/
| ----build
| ----CMakeLists.txt
| ----main.cpp
| ----vcpkg.json

相应文件内容为：
vcpkg.json

{
    "name": "test2",
    "version-string": "0.0.1",
    "dependencies": [
        "sqlite3"
    ]
}

main.cpp

#include <sqlite3.h>
#include <stdio.h>

int main()
{
    printf("%s\n", sqlite3_libversion());
    return 0;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.18)

project(versionstest2 CXX)

add_executable(main main.cpp)

find_package(unofficial-sqlite3 CONFIG REQUIRED)

target_link_libraries(main PRIVATE unofficial::sqlite3::sqlite3)

2. Clone vcpkg

PS F:\> git clone https://github.com/microsoft/vcpkg.git
PS F:\> cd vcpkg
PS F:\vcpkg> .\bootstrap-vcpkg.bat
PS F:\vcpkg> .\vcpkg.exe integrate install

Applied user-wide integration for this vcpkg root.
CMake projects should use: "-DCMAKE_TOOLCHAIN_FILE=F:/vcpkg/scripts/buildsystems/vcpkg.cmake"

All MSBuild C++ projects can now #include any installed libraries. Linking will be handled automatically. Installing new libraries will make them instantly available.

3. 配置CMake工程，将Binarycaching参数 "--binarysource=clear;--binarysource=files,F:\\Manifest-Binary\cache,read" 添加到cmake命令行中运行以下命令：

"C:\Program Files\CMake\bin\cmake.exe" .. -G "Visual Studio 16 2019" -A x64 -DVCPKG_TARGET_TRIPLET=x64-windows -DCMAKE_BUILD_TYPE=Debug -DCMAKE_TOOLCHAIN_FILE=F:/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_INSTALL_OPTIONS="--binarysource=clear;--binarysource=files,F:\\Manifest-Binary\cache,read"

输出：

-- Running vcpkg install
Detecting compiler hash for triplet x64-windows...
The following packages will be built and installed:
sqlite3[core]:x64-windows -> 3.39.2
* vcpkg-cmake[core]:x64-windows -> 2022-08-18
* vcpkg-cmake-config[core]:x64-windows -> 2022-02-06#1
Additional packages (*) will be modified to complete this operation.
Restored 1 package(s) from F:\\Manifest-Binary\cache in 120.4 ms. Use --debug to see more details.
Installing 1/3 vcpkg-cmake-config:x64-windows...
Building vcpkg-cmake-config[core]:x64-windows...
-- Installing: F:/vcpkg/packages/vcpkg-cmake-config_x64-windows/share/vcpkg-cmake-config/vcpkg_cmake_config_fixup.cmake
-- Installing: F:/vcpkg/packages/vcpkg-cmake-config_x64-windows/share/vcpkg-cmake-config/vcpkg-port-config.cmake
-- Installing: F:/vcpkg/packages/vcpkg-cmake-config_x64-windows/share/vcpkg-cmake-config/copyright
-- Performing post-build validation
-- Performing post-build validation done
Elapsed time to handle vcpkg-cmake-config:x64-windows: 72.18 ms
Installing 2/3 vcpkg-cmake:x64-windows...
Building vcpkg-cmake[core]:x64-windows...
-- Installing: F:/vcpkg/packages/vcpkg-cmake_x64-windows/share/vcpkg-cmake/vcpkg_cmake_configure.cmake
-- Installing: F:/vcpkg/packages/vcpkg-cmake_x64-windows/share/vcpkg-cmake/vcpkg_cmake_build.cmake
-- Installing: F:/vcpkg/packages/vcpkg-cmake_x64-windows/share/vcpkg-cmake/vcpkg_cmake_install.cmake
-- Installing: F:/vcpkg/packages/vcpkg-cmake_x64-windows/share/vcpkg-cmake/vcpkg-port-config.cmake
-- Installing: F:/vcpkg/packages/vcpkg-cmake_x64-windows/share/vcpkg-cmake/copyright
-- Performing post-build validation
-- Performing post-build validation done
Elapsed time to handle vcpkg-cmake:x64-windows: 116 ms
Installing 3/3 sqlite3:x64-windows...
Elapsed time to handle sqlite3:x64-windows: 52.98 ms

Total elapsed time: 2.706 s
sqlite3 provides CMake targets:

# this is heuristically generated, and may not be correct
find_package(unofficial-sqlite3 CONFIG REQUIRED)
target_link_libraries(main PRIVATE unofficial::sqlite3::sqlite3)

-- Running vcpkg install - done
-- Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.19042.
-- The CXX compiler identification is MSVC 19.29.30146.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: F:/Manifest-Binary/test2/build

从上面的构建日志中我们可以看到，开发端主机成功使用了共享路径 "F:\Manifest-Binary\cache" 下已经构建好的sqlite3缓存文件，大大节省了时间。

4. 构建CMake工程

"C:\Program Files\CMake\bin\cmake.exe" --build .

输出：

Microsoft (R) Build Engine version 16.11.2+f32259642 for .NET Framework
Copyright (C) Microsoft Corporation. All rights reserved.

Checking Build System
Building Custom Rule F:/Manifest-Binary/test2/CMakeLists.txt
main.cpp
main.vcxproj -> F:\Manifest-Binary\test2\build\Debug\main.exe
Building Custom Rule F:/Manifest-Binary/test2/CMakeLists.txt

5. 运行CMake工程

.\Debug\main.exe

输出：

3.39.2

注意：如果想通过Visual Studio在Manifest模式下使用Binarycaching，唯一需要注意的是CMakeSettings.json文件的设置：

{
    "configurations": [
        {
            "name": "x64-Debug",
            "generator": "Visual Studio 16 2019 Win64",
            "configurationType": "Debug",
            "inheritEnvironments": [ "msvc_x64_x64" ],
            "buildRoot": "${projectDir}\\out\\build\\${name}",
            "installRoot": "${projectDir}\\out\\install\\${name}",
            "cmakeCommandArgs": "",
            "buildCommandArgs": "",
            "ctestCommandArgs": "",
            "variables": [
                {
                    "name": "CMAKE_TOOLCHAIN_FILE",
                    "value": "F:/Manifest-Binary/vcpkg/scripts/buildsystems/vcpkg.cmake"
                },
                {
                    "name": "VCPKG_INSTALL_OPTIONS",
                    "value": "--binarysource=clear;--binarysource=\"files,F:/Manifest-Binary/cache,read\""
                }
            ]
        }
    ]
}

Msbuild工程使用Manifest和Binarycaching，参考 https://www.cnblogs.com/vcpkg/p/15019899.html 。

posted @ 2022-10-18 17:34 vcpkg_C++包管理器阅读(322) 评论(0) 编辑收藏举报

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Manifest使用示例4 - Binarycaching使用缓存文件

一、服务器主机：

二、开发端主机：

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