This requires enabling the [derive feature flag][crate::_features].
Git is an example of several common subcommand patterns.
Help:
$ git-derive
? failed
git
A fictional versioning CLI
USAGE:
git-derive[EXE] <SUBCOMMAND>
OPTIONS:
-h, --help Print help information
SUBCOMMANDS:
add adds things
clone Clones repos
help Print this message or the help of the given subcommand(s)
push pushes things
stash
$ git-derive help
git
A fictional versioning CLI
USAGE:
git-derive[EXE] <SUBCOMMAND>
OPTIONS:
-h, --help Print help information
SUBCOMMANDS:
add adds things
clone Clones repos
help Print this message or the help of the given subcommand(s)
push pushes things
stash
$ git-derive help add
git-add
adds things
USAGE:
git-derive[EXE] add <PATH>...
ARGS:
<PATH>... Stuff to add
OPTIONS:
-h, --help Print help information
A basic argument:
$ git-derive add
? failed
git-add
adds things
USAGE:
git-derive[EXE] add <PATH>...
ARGS:
<PATH>... Stuff to add
OPTIONS:
-h, --help Print help information
$ git-derive add Cargo.toml Cargo.lock
Adding ["Cargo.toml", "Cargo.lock"]
Default subcommand:
$ git-derive stash -h
git-stash
USAGE:
git-derive[EXE] stash [OPTIONS]
git-derive[EXE] stash <SUBCOMMAND>
OPTIONS:
-h, --help Print help information
-m, --message <MESSAGE>
SUBCOMMANDS:
apply
help Print this message or the help of the given subcommand(s)
pop
push
$ git-derive stash push -h
git-stash-push
USAGE:
git-derive[EXE] stash push [OPTIONS]
OPTIONS:
-h, --help Print help information
-m, --message <MESSAGE>
$ git-derive stash pop -h
git-stash-pop
USAGE:
git-derive[EXE] stash pop [STASH]
ARGS:
<STASH>
OPTIONS:
-h, --help Print help information
$ git-derive stash -m "Prototype"
Pushing StashPush { message: Some("Prototype") }
$ git-derive stash pop
Popping None
$ git-derive stash push -m "Prototype"
Pushing StashPush { message: Some("Prototype") }
$ git-derive stash pop
Popping None
External subcommands:
$ git-derive custom-tool arg1 --foo bar
Calling out to "custom-tool" with ["arg1", "--foo", "bar"]