英文:
What rules decides the Go package installation location?
问题
当我在%GOPATH%\src中运行go install命令时，我的一些自定义包会被安装到%GOPATH%\pkg目录下。
我了解到%GOROOT%和%GOPATH%文件夹有类似的组织结构。所以我尝试了在%GOROOT%\src\cmd\cgo目录下运行go install cmd\cgo命令，该目录是golang安装的一部分。但最终生成的cgo.exe被安装到了%GOROOT%\pkg\tool\目录下。
我检查了cmd\cgo目录下的所有*.go文件，它们都有一个package main的声明。所以我本来期望最终的cgo.exe被安装到%GOROOT%\bin目录下。
我的问题是：
- 为什么
cgo.exe被安装到pkg目录而不是bin目录？ pkg\tool中的tool部分是从哪里来的？我能否对我的自定义包做类似的操作？
英文:
When I run go install with some of my own package located in %GOPATH%\src, it will be installed to %GOPATH%\pkg.
I read that %GOROOT% and %GOPATH% folders have similar organization. So I tried go install cmd\cgo with the %GOROOT%\src\cmd\cgo package which is part of the golang installation. But the final cgo.exe is installed to %GOROOT%\pkg\tool\.
I checked all the *.go files in the cmd\cgo folder. They all have a package main declaration. So I was expecting the final cgo.exe to be installed to %GOROOT%\bin.
My questions are:
- Why the
cgo.exeis installed topkgrather thanbin? - Where does the
toolpart in thepkg\toolcome from? Can I do similar thing for my own package?
答案1
得分: 3
go build 命令依赖于一个 go 工具目录，其中安装了构建工具（compile.exe、link.exe 等）。
而 ToolDir 被定义为：
var ToolDir = filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)
因此，任何构建工具都位于 %GOROOT%\pkg\tool\ 目录下。
英文:
The go build command relies on a go tool directory, where build tools are installed (compile.exe, link.exe, ...).
And ToolDir is defined as:
var ToolDir = filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)
So any build tool is in %GOROOT%\pkg\tool\
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