go build

• compile the package named by the import paths and thier dependencies

• go build package/*.go

  • if build *.go, a virtual package command-line-arguments is created internally

    • $WORK/command-line-arguments/_obj/: stores the obj files

    • $WORK/command-line-arguments/_obj/exe/: stores the executable after link

• -v - work: print the name of the temporary work directory and do not delete it when exiting

• -n: print the commands but do not run them

• -x: as the -n flag but run them

go install

• compile and install the package and its dependent package. The result is archive/executable and installed to $GOBIN dir

• If $GOBIN not set, error promption: go install: no install location for directory

• -o flag currently is not acceptable for go install

• go install only accepts *.go of cmd/executable src code, not *.go of lib src code. To install libs, need run go install package

go get

• download/update specific package or their dependencies
• -d: only download the source code, no package installation
• -u: update the named packages and their depenencies
• -fix: for backword compatible

go list

list package information

• go list -json package: print the package strcuture in json format
• text/template syntax

  1 2	go list -f {{.ImportPath} package go list -f {{.S.F}} package

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$ go list -json net/http
$ go list -json github.com/kasperdeng/grpcPt/client

go test

test *_test.go

• go help testflag
• -i: install the test dependencies, but not compile and run it
• -c: generate test executables, but not run it
• -bench regexp 执行相应的benchmarks，例如 -bench=.
• -cover 开启测试覆盖率
• -run regexp 只运行regexp匹配的函数，例如 -run=Array 执行包含有Array开头的函数

godoc

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$ go get golang.org/x/tools/cmd/godoc
$ godoc -http=:8080 &
# godoc package
$ godoc net/http
# godoc func
$ godoc fmt Printf

Reference

• Go Command Turorial
• 极客学院 - GO 命令教程
• astaxie - GO命令