diff options
| author | Eyal Posener <[email protected]> | 2019-03-07 06:59:58 +0200 |
|---|---|---|
| committer | Eyal Posener <[email protected]> | 2019-03-07 06:59:58 +0200 |
| commit | d258bec9b1c6e4c8cf76949b789b9a8b0d5193f8 (patch) | |
| tree | 812be0e1290c1b2bb5ace0e950d0d63804537e4b /doc.go | |
| parent | 3ef9b31a6a0613ae832e7ecf208374027c3b2343 (diff) | |
use goreadme
Diffstat (limited to 'doc.go')
| -rw-r--r-- | doc.go | 111 |
1 files changed, 111 insertions, 0 deletions
@@ -0,0 +1,111 @@ +/* +Package complete provides a tool for bash writing bash completion in go, and bash completion for the go command line. + +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](./cmd/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: + + 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) + +*/ +package complete |
