mirror of https://github.com/status-im/consul.git
118 lines
3.6 KiB
Markdown
118 lines
3.6 KiB
Markdown
# complete
|
|
|
|
A tool for bash writing bash completion in go, and bash completion for the go command line.
|
|
|
|
[](https://travis-ci.org/posener/complete)
|
|
[](https://codecov.io/gh/posener/complete)
|
|
[](http://godoc.org/github.com/posener/complete)
|
|
[](https://goreportcard.com/report/github.com/posener/complete)
|
|
|
|
Writing bash completion scripts is a hard work. This package provides an easy way
|
|
to create bash completion scripts for any command, and also an easy way to install/uninstall
|
|
the completion of the command.
|
|
|
|
## go command bash completion
|
|
|
|
In [gocomplete](./gocomplete) there is an example for bash completion for the `go` command line.
|
|
|
|
This is an example that uses the `complete` package on the `go` command - the `complete` package
|
|
can also be used to implement any completions, see [Usage](#usage).
|
|
|
|
### Install
|
|
|
|
1. Type in your shell:
|
|
```
|
|
go get -u github.com/posener/complete/gocomplete
|
|
gocomplete -install
|
|
```
|
|
|
|
2. Restart your shell
|
|
|
|
Uninstall by `gocomplete -uninstall`
|
|
|
|
### Features
|
|
|
|
- Complete `go` command, including sub commands and all flags.
|
|
- Complete packages names or `.go` files when necessary.
|
|
- Complete test names after `-run` flag.
|
|
|
|
## complete package
|
|
|
|
Supported shells:
|
|
|
|
- [x] bash
|
|
- [x] zsh
|
|
- [x] fish
|
|
|
|
### Usage
|
|
|
|
Assuming you have program called `run` and you want to have bash completion
|
|
for it, meaning, if you type `run` then space, then press the `Tab` key,
|
|
the shell will suggest relevant complete options.
|
|
|
|
In that case, we will create a program called `runcomplete`, a go program,
|
|
with a `func main()` and so, that will make the completion of the `run`
|
|
program. Once the `runcomplete` will be in a binary form, we could
|
|
`runcomplete -install` and that will add to our shell all the bash completion
|
|
options for `run`.
|
|
|
|
So here it is:
|
|
|
|
```go
|
|
import "github.com/posener/complete"
|
|
|
|
func main() {
|
|
|
|
// create a Command object, that represents the command we want
|
|
// to complete.
|
|
run := complete.Command{
|
|
|
|
// Sub defines a list of sub commands of the program,
|
|
// this is recursive, since every command is of type command also.
|
|
Sub: complete.Commands{
|
|
|
|
// add a build sub command
|
|
"build": complete.Command {
|
|
|
|
// define flags of the build sub command
|
|
Flags: complete.Flags{
|
|
// build sub command has a flag '-cpus', which
|
|
// expects number of cpus after it. in that case
|
|
// anything could complete this flag.
|
|
"-cpus": complete.PredictAnything,
|
|
},
|
|
},
|
|
},
|
|
|
|
// define flags of the 'run' main command
|
|
Flags: complete.Flags{
|
|
// a flag -o, which expects a file ending with .out after
|
|
// it, the tab completion will auto complete for files matching
|
|
// the given pattern.
|
|
"-o": complete.PredictFiles("*.out"),
|
|
},
|
|
|
|
// define global flags of the 'run' main command
|
|
// those will show up also when a sub command was entered in the
|
|
// command line
|
|
GlobalFlags: complete.Flags{
|
|
|
|
// a flag '-h' which does not expects anything after it
|
|
"-h": complete.PredictNothing,
|
|
},
|
|
}
|
|
|
|
// run the command completion, as part of the main() function.
|
|
// this triggers the autocompletion when needed.
|
|
// name must be exactly as the binary that we want to complete.
|
|
complete.New("run", run).Run()
|
|
}
|
|
```
|
|
|
|
### Self completing program
|
|
|
|
In case that the program that we want to complete is written in go we
|
|
can make it self completing.
|
|
|
|
Here is an [example](./example/self/main.go)
|