此页面描述了 [包依赖管理](zh-cn/manual/package_dependencies.md) 的 `on_load()`、`on_install()` 或 `on_test()` 等函数的 `package` 接口 #### package:name - 获取包的名字 #### package:get - 获取包在描述域的配置值 任何在描述域的 `set_xxx` 和 `add_xxx` 配置值都可以通过这个接口获取到。 ```lua -- get the dependencies package:get("deps") -- get the links package:get("links") -- get the defined macros package:get("defines") ``` #### package:set - 设置包的配置值,(如果你想添加值可以用 [package:add](#packageadd))。 ```lua -- set the dependencies package:set("deps", "python") -- set the links package:set("links", "sdl2") -- set the defined macros package:set("defines", "SDL_MAIN_HANDLED") ``` #### package:add - 按名称添加到包的值 ```lua -- add dependencies package:add("deps", "python") -- add links package:add("links", "sdl2") -- add defined macros package:add("defines", "SDL_MAIN_HANDLED") ``` #### package:license - 获取包的许可证(同`package:get("license")`) #### package:description - 获取包的描述(同`package:get("description")`) #### package:plat - 获取包的平台。 可以是以下任何一种: + windows + linux + macosx + android + iphoneos + watchos + mingw + cygwin + bsd 如果包是二进制的,则会返回 [`os.host`](zh-cn/manual/builtin_modules.md#oshost) 的值 #### package:arch - 获取包的架构(例如 x86、x64、x86_64) 如果包是二进制的,则返回 [`os.arch`](zh-cn/manual/builtin_modules.md#osarch) #### package:targetos - 获取包的目标操作系统。 可以具有与 [package:plat](#packageplat) 相同的值 #### package:targetarch - 获取包的目标架构。 可以具有与 [package:arch](#packagearch) 相同的值 #### package:is_plat - 当前平台是否是给定平台之一 ```lua -- Is the current platform android? package:is_plat("android") -- Is the current platform windows, linux or macosx? package:is_plat("windows", "linux", "macosx") ``` #### package:is_arch - 当前架构是否是给定架构之一 ```lua -- Is the current architecture x86 package:is_arch("x86") -- Is the current architecture x64 or x86_64 package:is_arch("x64", "x86_64") ``` #### package:is_targetos - 当前目标操作系统是否是给定操作系统之一 ```lua -- Is the currently targeted OS windows? package:is_targetos("windows") -- Is the currently targeted OS android or iphoneos? package:is_targetos("android", "iphoneos") ``` #### package:is_targetarch - 当前目标架构是否是给定架构之一 ```lua -- Is the currently targeted architecture x86 package:is_targetarch("x86") -- Is the currently targeted architecture x64 or x86_64 package:is_targetarch("x64", "x86_64") ``` #### package:alias - 获取包的别名 如果用户像这样设置别名: ```lua add_requires("libsdl", {alias = "sdl"}) ``` 那么这个别名可以通过这个接口获取到: ```lua -- returns "sdl" package:alias() ``` #### package:urls - 获取包的 urls 列表 如果我们设置了如下 URLs ```lua add_urls("https://example.com/library-$(version).zip") -- or so set_urls("https://example.com/library-$(version).zip") ``` 那么我们可以通过下面的接口来获取 ```lua -- returns the table {"https://example.com/library-$(version).zip"} package:urls() ``` #### package:dep - 通过名称获取包的依赖项。 该名称需要是包的依赖项。 ```lua local python = package:dep("python") -- returns "python" python:name() ``` #### package:deps - 获取包的所有依赖项 ```lua -- prints the names of all dependencies for _,dep in pairs(package:deps()) do print(dep:name()) end ``` #### package:sourcehash - 获取 URL 别名的 sha256 校验和 如果校验和是这样提供的: ```lua add_urls("https://example.com/library-$(version).zip", {alias = "example"}) add_versions("example:2.4.1", "29f9983cc7196e882c4bc3d23d7492f9c47574c7cf658afafe7d00c185429941") ``` 您可以像这样获取它: ```lua -- returns "29f9983cc7196e882c4bc3d23d7492f9c47574c7cf658afafe7d00c185429941" package:sourcehash("example") -- or so package:sourcehash(package:url_alias(package:urls()[1])) ``` #### package:kind - 获取包的类型。 可以是以下任何一种: + binary + toolchain (is also binary) + library (default) + template [#2138](https://github.com/xmake-io/xmake/issues/2138) + headeronly #### package:is_binary - 包是否为二进制类型 #### package:is_toolchain - 报是否为工具链类型 #### package:is_library - 包是否为库类型 #### package:is_toplevel -- 包是否在用户 xmake.lua 里面通过 add_requires 直接引用 #### package:is_thirdparty - 包是否由第三方包管理器提供(例如 brew、conan、vcpkg) #### package:is_debug - 包是否以调试模式构建(同`package:config("debug")`) #### package:is_supported - 当前平台和架构是否支持该包 #### package:debug - 包是否使用调试模式构建(不推荐使用:使用 [`package:is_debug`](#packageis_debug) 代替) #### package:is_cross - 包是否正在交叉编译 #### package:cachedir - 获取包的缓存目录 #### package:installdir - 获取包的安装目录。 也可用于获取子目录。 如果给定的目录树不存在,它将被创建。 ```lua -- returns the installation directory package:installdir() -- returns the subdirectory include inside the installation directory package:installdir("include") -- returns the subdirectory include/files package:installdir("include", "files") ``` #### package:scriptdir - 获取包的xmake.lua所在目录 #### package:envs - 获取包导出的环境变量 #### package:getenv - 获取给定的环境变量 ```lua -- returns a table package:getenv("PATH") ``` #### package:setenv - 设置给定的环境变量。 覆盖变量 ```lua -- sets PATH to {"bin", "lib"} package:setenv("PATH", "bin", "lib") ``` #### package:addenv - 将给定的值添加到环境变量 ```lua -- adds "bin" and "lib" to PATH package:addenv("PATH", "bin", "lib") ``` #### package:versions - 获取包的所有版本列表。 #### package:version - 获取包的版本 它会返回一个语义版本对象,便于做版本之间的判断。 ```lua local version = package:version() -- get the major version version:major() -- get the minor version version:minor() -- get the patch version version:patch() ``` #### package:version_str - 以字符串形式获取包的版本 #### package:config - 获取包的给定配置值 ```lua -- if configurations are set like so add_require("example", {configs = {enable_x = true, value_y = 6}}) -- these values can be retrieved like so -- returns true package:config("enable_x") -- returns 6 package:config("value_y") ``` #### package:config_set - 设置包的给定配置值 ```lua package:config_set("enable_x", true) package:config_set("value_y", 6) ``` #### package:configs - 获取包的所有配置 ```lua -- returns a table with the configuration names as keys and their values as values local configs = package:configs() local enable_x = configs["enable_x"] local value_y = configs["value_y"] ``` #### package:buildhash - 获取包的构建哈希 它确保每个包,不同的配置安装到唯一的路径下,相互之间不冲突。 #### package:patches - 获取当前版本的所有补丁 ```lua -- returns a table with all patches local patches = package:patches() -- each element contains the keys "url" and "sha256" local url = patches[1]["url"] local sha256 = patches[1]["sha256"] ``` #### package:has_cfuncs - 检测包是否具有给定的 C 函数 这应该在 `on_test` 中使用,如下所示: ```lua on_test(function (package) assert(package:has_cfuncs("foo")) -- you can also add configs assert(package:has_cfuncs("bar", {includes = "foo_bar.h"})) assert(package:has_cfuncs("blob", {includes = "blob.h", configs = {defines = "USE_BLOB"}})) -- you can even set the language assert(package:has_cfuncs("bla", {configs = {languages = "c99"}})) end) ``` #### package:has_cxxfuncs - 检测包是否具有给定的 C++ 函数 这应该在 `on_test` 中使用,如下所示: ```lua on_test(function (package) assert(package:has_cxxfuncs("foo")) -- you can also add configs assert(package:has_cxxfuncs("bar", {includes = "foo_bar.hpp"})) assert(package:has_cxxfuncs("blob", {includes = "blob.hpp", configs = {defines = "USE_BLOB"}})) -- you can even set the language assert(package:has_cxxfuncs("bla", {configs = {languages = "cxx17"}})) end) ``` #### package:has_ctypes - 检测包是否具有给定的 C 类型 这应该在 `on_test` 中使用,如下所示: ```lua on_test(function (package) assert(package:has_ctypes("foo")) -- you can also add configs assert(package:has_ctypes("bar", {includes = "foo_bar.h"})) assert(package:has_ctypes("blob", {includes = "blob.h", configs = {defines = "USE_BLOB"}})) -- you can even set the language assert(package:has_ctypes("bla", {configs = {languages = "c99"}})) end) ``` #### package:has_cxxtypes - 检测包是否具有给定的 C++ 类型 这应该在 `on_test` 中使用,如下所示: ```lua on_test(function (package) assert(package:has_cxxtypes("foo")) -- you can also add configs assert(package:has_cxxtypes("bar", {includes = "foo_bar.hpp"})) assert(package:has_cxxtypes("blob", {includes = "blob.hpp", configs = {defines = "USE_BLOB"}})) -- you can even set the language assert(package:has_cxxtypes("bla", {configs = {languages = "cxx17"}})) end) ``` #### package:has_cincludes - 检测包是否具有给定的 C 头文件 这应该在 `on_test` 中使用,如下所示: ```lua on_test(function (package) assert(package:has_cincludes("foo.h")) end) ``` #### package:has_cxxincludes - 检测包是否具有给定的 C++ 头文件 这应该在 `on_test` 中使用,如下所示: ```lua on_test(function (package) assert(package:has_cincludes("foo.hpp")) end) ``` #### package:check_csnippets - 检测是否可以编译和链接给定的 C 代码片段 这应该在 `on_test` 中使用,如下所示: ```lua on_test(function (package) assert(package:check_csnippets({test = [[ #define USE_BLOB #include void test(int argc, char** argv) { foo bar; printf("%s", bar.blob); } ]]}, {configs = {languages = "c99"}, includes = "foo.h"})) end) ``` #### package:check_cxxsnippets - 检测是否可以编译和链接给定的 C++ 代码片段 这应该在 `on_test` 中使用,如下所示: ```lua on_test(function (package) assert(package:check_cxxsnippets({test = [[ #define USE_BLOB #include void test(int argc, char** argv) { foo bar(); std::cout << bar.blob; } ]]}, {configs = {languages = "cxx11"}, includes = "foo.hpp"})) end) ``` #### package:check_fcsnippets - 检测是否可以编译和链接给定的 Fortran 代码片段 用法如上