premake/website/docs/newaction.md
2021-03-12 22:10:24 +01:00

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Registers a new command-line action argument. For more information, see [Command Line Arguments](Command-Line-Arguments.md).
```lua
newaction { description }
```
### Parameters ###
`description` is a table describing the new action. It may contain the following fields:
| | |
|-------------|------------------------------------------------------------------------------------|
| trigger | What the user would type on the command line to select the action, e.g. "vs2013". |
| shortname | A short summary for the help text, e.g. "Visual Studio 2013". |
| description | A description of the action's result, e.g. "Generate Visual Studio 2013 project files". |
| execute | A function to be executed when the action is fired. |
| os | If the toolset targets a specific OS, the [identifier](system.md) for that OS. |
| valid_kinds | The list of [project kinds](kind.md) supported by the action. |
| valid_languages | The list of [languages](language.md) supported by the action. |
| valid_tools | The list of [tools](toolset.md) supported by the action. |
| onStart | A callback marking the start of action processing. |
| onWorkspace | A callback for each workspace specified in the user script. |
| onProject | A callback for each project specified in the user script. |
| onRule | A callback for each rule specified in the user script. |
| onEnd | A callback marking the end of action processing. |
| onCleanWorkspace | A callback for each workspace, when the clean action is selected. |
| onCleanProject | A callback for each project, when the clean action is selected. |
| onCleanTarget | A callback for each target, when the clean action is selected. |
| pathVars | A map of Premake tokens to toolset specific identifiers. |
The callbacks will fire in this order:
1. `onStart()`
2a. `onWorkspace()` for each workspace
2b. `onProject()` for each project in each workspace
3. `onRule()` for each rule
4. `execute()`
5. `onEnd()`
### Availability ###
Premake 5.0 and later.
### Examples ###
Register a new action to install the software project.
```lua
newaction {
trigger = "install",
description = "Install the software",
execute = function ()
os.copyfile("bin/debug/myprogram", "/usr/local/bin/myprogram")
end
}
```
### See Also ###
* [Command Line Arguments](Command-Line-Arguments.md)