Carthage/Carthage — pull request #117 by jspahrsummers (2014-11-20 20:37:30+00:00)
Title: Improve Command implementation and user-visible help

While working on other stuff, I noticed that the CLI handling could use a lot of improvement. This improves the state of the documentation and usage help, while also cleaning up the code behind it.

```
$ carthage help
Available commands:

bootstrap Check out and build the project's dependencies
build Build the project's dependencies
checkout Check out the project's dependencies
help Display general or command-specific help
update Update and rebuild the project's dependencies
version Display the current version of Carthage
```

```
$ carthage help bootstrap
Check out and build the project's dependencies

[--configuration Release]
the Xcode configuration to build (if --build is enabled)

[--no-build]
skip the building of dependencies after updating

[--use-ssh]
use SSH for downloading GitHub repositories

[/Users/justin/GitHub/Carthage]
the directory containing the Carthage project
```

```
$ carthage help build
Build the project's dependencies

[--configuration Release]
the Xcode configuration to build

[--no-skip-current]
build the Carthage project in addition to its dependencies

[/Users/justin/GitHub/Carthage]
the directory containing the Carthage project
```

```
$ carthage help update
Update and rebuild the project's dependencies

[--configuration Release]
the Xcode configuration to build (if --build is enabled)

[--no-build]
skip the building of dependencies after updating

[--use-ssh]
use SSH for downloading GitHub repositories

[/Users/justin/GitHub/Carthage]
the directory containing the Carthage project
```

```
$ carthage help help
Display general or command-specific help

[(string)]
the command to display help for
```