Cobra
cobra是一个用来创建命令行程序的扩展库 https://github.com/spf13/cobra。
cli
命令行程序由applicaton 和三个非必须部分command argument flag组成。
- application
- command
- arguments
- flags
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#application
git
#application command
git version
#application command flag
git version --build-options
#application command arguments
git clone https://github.com/signalwire/freeswitch.git
#application command flags arguments
git clone -bv1.10 -v https://github.com/signalwire/freeswitch.git freeswitch
app command flag1 flag2 argument1 argument2
git clone -bv1.0 -v https://github.com/signalwire/freeswitch.git freeswitch
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flags 格式可以参考:
https://pkg.go.dev/flag#hdr-Command_line_flag_syntax
https://github.com/spf13/pflag#command-line-flag-syntax
https://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
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-flag
-flag=x
-flag x // non-boolean flags only
--flag
--flag=x
--flag x // non-boolean flags only
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app
cobra提供了cobra-cli来自动生成application。
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go install github.com/spf13/cobra-cli@latest
mkdir app && cd app
go mod init github.com/xxx/app
cobra-cli init
#app directory
▾ app/
▾ cmd/
root.go
main.go
go run main.go
cobra-cli add server
cobra-cli add config
cobra-cli add create -p 'configCmd'
#app direcotry
▾ app/
▾ cmd/
config.go
create.go
serve.go
root.go
main.go
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vscode
vscode在调试app时需在launch.json中新增args来传参。
args传入app的command，argument，flag。
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"args":["command","argument1","argument2","flag1","flag2"]
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{
"version": "0.2.0",
"configurations": [
{
"name": "Launch Package",
"type": "go",
"request": "launch",
"mode": "auto",
"program": "${fileDirname}",
"args": ["fsconfig","/etc/myetc"]
}
]
}
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