clap/examples/git.md
Ed Page 02db3043e2 fix(help): Consistently use [] for positionals
In the usaeg we use `[]` but in the arg list we use `<>`.
2022-08-29 15:34:30 -05:00

2.1 KiB

Git is an example of several common subcommand patterns.

Help:

$ git
? failed
git 
A fictional versioning CLI

Usage:
    git[EXE] <SUBCOMMAND>

Subcommands:
    clone    Clones repos
    push     pushes things
    add      adds things
    stash    
    help     Print this message or the help of the given subcommand(s)

Options:
    -h, --help    Print help information

$ git help
git 
A fictional versioning CLI

Usage:
    git[EXE] <SUBCOMMAND>

Subcommands:
    clone    Clones repos
    push     pushes things
    add      adds things
    stash    
    help     Print this message or the help of the given subcommand(s)

Options:
    -h, --help    Print help information

$ git help add
git-add 
adds things

Usage:
    git[EXE] add <PATH>...

Arguments:
    <PATH>...    Stuff to add

Options:
    -h, --help    Print help information

A basic argument:

$ git add
? failed
git-add 
adds things

Usage:
    git[EXE] add <PATH>...

Arguments:
    <PATH>...    Stuff to add

Options:
    -h, --help    Print help information

$ git add Cargo.toml Cargo.lock
Adding ["Cargo.toml", "Cargo.lock"]

Default subcommand:

$ git stash -h
git-stash 

Usage:
    git[EXE] stash [OPTIONS]
    git[EXE] stash <SUBCOMMAND>

Subcommands:
    push     
    pop      
    apply    
    help     Print this message or the help of the given subcommand(s)

Options:
    -m, --message <MESSAGE>    
    -h, --help                 Print help information

$ git stash push -h
git-stash-push 

Usage:
    git[EXE] stash push [OPTIONS]

Options:
    -m, --message <MESSAGE>    
    -h, --help                 Print help information

$ git stash pop -h
git-stash-pop 

Usage:
    git[EXE] stash pop [STASH]

Arguments:
    [STASH]    

Options:
    -h, --help    Print help information

$ git stash -m "Prototype"
Pushing Some("Prototype")

$ git stash pop
Popping None

$ git stash push -m "Prototype"
Pushing Some("Prototype")

$ git stash pop
Popping None

External subcommands:

$ git custom-tool arg1 --foo bar
Calling out to "custom-tool" with ["arg1", "--foo", "bar"]