英文:
gotype command not installed with Go?
问题
我从外部网站得到了Go 1.4 / Win32版本。我看到了文件夹"c:\go\bin"，但里面没有gotype命令。我需要gotype命令，请问gotype在哪里，如何安装它？
英文:
i got Go 1.4 / Win32 from offsite. I see foder "c:\go\bin". No gotype command in it. I need gotype -- where is gotype, how to install it?
答案1
得分: 3
2015年4月更新：Go 1.5应该引入了"go doc"命令，请参见以下链接：
- review 9227:
cmd/go,cmd/doc: 添加"go doc" - review 9226: 为"go doc"准备重命名
doc.go为alldocs.go
> 将新的"go doc"命令添加到go命令中，安装在工具目录中。
> 用法：
go doc [-u] [package|[package.]symbol[.method]]
原始答案（2015年1月）
你需要：
go get -u golang.org/x/tools/cmd/gotype
这将安装来自golang.org/x/tools/cmd/gotype的额外工具：
> "gotype"命令对Go文件和包进行语法和语义分析，就像Go编译器的前端一样。
如果分析失败，则报告错误；否则，gotype是静默的（除非设置了"-v"）。
注意：这不是你可能考虑安装的唯一额外工具，如这篇文章所示：
go get -u golang.org/x/tools/cmd/godoc
go get -u golang.org/x/tools/cmd/vet
go get -u golang.org/x/tools/cmd/goimports
go get -u golang.org/x/tools/cmd/gorename
go get -u golang.org/x/tools/cmd/oracle
go get -u golang.org/x/tools/cmd/gotype
go get -u github.com/golang/lint/golint
注意：Go 1.5将使该操作更快。
请参见Brad Fitzpatrick (bradfitz)的提交 dc2d64b：
> ## cmd/go: 缓存元标签发现期间执行的HTTP请求的结果
> 以前，运行
$ go get -u -v golang.org/x/tools/cmd/godoc
> 会导致针对x/tools下的每个包进行数十个HTTP请求：
https://golang.org/x/tools?go-get=1
> 现在它缓存了结果。
我们仍然会对x/tools下的所有包执行一次HTTP请求，但这将减少总共约一半的HTTP请求次数。
英文:
Update April 2015: Go 1.5 should introduce "go doc": see
- review 9227:
cmd/go,cmd/doc: add "go doc" - review 9226: rename
doc.gotoalldocs.goin preparation for "go doc"
> Add the new go doc command to the go command, installed in the tool directory.
> usage:
go doc [-u] [package|[package.]symbol[.method]]
Original answer (January 2015)
You would need:
go get -u golang.org/x/tools/cmd/gotype
That would install that extra tools from golang.org/x/tools/cmd/gotype:
> The gotype command does syntactic and semantic analysis of Go files and packages like the front-end of a Go compiler.
Errors are reported if the analysis fails; otherwise gotype is quiet (unless -v is set).
Note: this isn't the only extra tool you might consider installing, as illustrated in this article:
go get -u golang.org/x/tools/cmd/godoc
go get -u golang.org/x/tools/cmd/vet
go get -u golang.org/x/tools/cmd/goimports
go get -u golang.org/x/tools/cmd/gorename
go get -u golang.org/x/tools/cmd/oracle
go get -u golang.org/x/tools/cmd/gotype
go get -u github.com/golang/lint/golint
Note: Go 1.5 will make that operation even faster.
See commit dc2d64b by Brad Fitzpatrick (bradfitz):
> ## cmd/go: cache results of HTTP requests done during meta tag discovery
> Previously, running
$ go get -u -v golang.org/x/tools/cmd/godoc
> would results in dozens of HTTP requests for:
https://golang.org/x/tools?go-get=1
> once per package under x/tools.
> Now it caches the results.
We still end up doing one HTTP request for all the packages under x/tools, but this reduces the total number of HTTP requests in ~half.
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