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subcommands
h908714124 edited this page Apr 30, 2023 · 18 revisions
The SuperCommand annotation can be used to create a command/subcommand structure. A @SuperCommand parser is similar to a @Command parser, but it stops parsing after the last positional parameter was read, and simply returns the remaining tokens:
@SuperCommand( name = "git", description = "Git is software for tracking changes in any set of files.") interface GitCommand { @Parameter(index = 0) String command(); @VarargsParameter List<String> remainingTokens(); }The generated GitCommandParser can be used as follows:
GitCommand gitCommand = new GitCommandParser().parseOrExit(new String[]{"add", "foo"}); String command = result.command(); // "add" List<String> remainingTokens = result.remainingTokens(); // ["foo"]We can define a "subcommand" to parse the remaining tokens. The subcommand is just a regular @Command.
@Command( name = "git-add", description = "Add file contents to the index") interface AddCommand { @VarargsParameter List<String> pathspec(); // more parameters and options... }