435c0d9fc8
This PR switches the Nomad repository from using govendor to Go modules for managing dependencies. Aspects of the Nomad workflow remain pretty much the same. The usual Makefile targets should continue to work as they always did. The API submodule simply defers to the parent Nomad version on the repository, keeping the semantics of API versioning that currently exists.
119 lines
3.7 KiB
Markdown
119 lines
3.7 KiB
Markdown
# complete
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A tool for bash writing bash completion in go, and bash completion for the go command line.
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[](https://travis-ci.org/posener/complete)
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[](https://codecov.io/gh/posener/complete)
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[](https://golangci.com/r/github.com/posener/complete)
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[](http://godoc.org/github.com/posener/complete)
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[](https://goreportcard.com/report/github.com/posener/complete)
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Writing bash completion scripts is a hard work. This package provides an easy way
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to create bash completion scripts for any command, and also an easy way to install/uninstall
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the completion of the command.
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## go command bash completion
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In [gocomplete](./gocomplete) there is an example for bash completion for the `go` command line.
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This is an example that uses the `complete` package on the `go` command - the `complete` package
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can also be used to implement any completions, see [Usage](#usage).
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### Install
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1. Type in your shell:
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```
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go get -u github.com/posener/complete/gocomplete
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gocomplete -install
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```
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2. Restart your shell
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Uninstall by `gocomplete -uninstall`
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### Features
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- Complete `go` command, including sub commands and all flags.
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- Complete packages names or `.go` files when necessary.
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- Complete test names after `-run` flag.
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## complete package
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Supported shells:
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- [x] bash
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- [x] zsh
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- [x] fish
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### Usage
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Assuming you have program called `run` and you want to have bash completion
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for it, meaning, if you type `run` then space, then press the `Tab` key,
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the shell will suggest relevant complete options.
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In that case, we will create a program called `runcomplete`, a go program,
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with a `func main()` and so, that will make the completion of the `run`
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program. Once the `runcomplete` will be in a binary form, we could
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`runcomplete -install` and that will add to our shell all the bash completion
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options for `run`.
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So here it is:
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```go
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import "github.com/posener/complete"
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func main() {
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// create a Command object, that represents the command we want
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// to complete.
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run := complete.Command{
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// Sub defines a list of sub commands of the program,
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// this is recursive, since every command is of type command also.
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Sub: complete.Commands{
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// add a build sub command
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"build": complete.Command {
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// define flags of the build sub command
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Flags: complete.Flags{
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// build sub command has a flag '-cpus', which
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// expects number of cpus after it. in that case
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// anything could complete this flag.
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"-cpus": complete.PredictAnything,
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},
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},
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},
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// define flags of the 'run' main command
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Flags: complete.Flags{
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// a flag -o, which expects a file ending with .out after
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// it, the tab completion will auto complete for files matching
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// the given pattern.
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"-o": complete.PredictFiles("*.out"),
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},
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// define global flags of the 'run' main command
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// those will show up also when a sub command was entered in the
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// command line
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GlobalFlags: complete.Flags{
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// a flag '-h' which does not expects anything after it
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"-h": complete.PredictNothing,
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},
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}
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// run the command completion, as part of the main() function.
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// this triggers the autocompletion when needed.
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// name must be exactly as the binary that we want to complete.
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complete.New("run", run).Run()
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}
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```
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### Self completing program
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In case that the program that we want to complete is written in go we
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can make it self completing.
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Here is an [example](./example/self/main.go)
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