mirror of
https://github.com/clap-rs/clap
synced 2024-12-14 23:02:31 +00:00
d840d5650e
Before #2005, `Clap` was a special trait that derived all clap traits it detected were relevant (including an enum getting both `ArgEnum`, `Clap`, and `Subcommand`). Now, we have elevated `Clap`, `Args`, `Subcommand`, and `ArgEnum` to be user facing but the name `Clap` isn't very descriptive. This also helps further clarify the relationships so a crate providing an item to be `#[clap(flatten)]` or `#[clap(subcommand)]` is more likely to choose the needed trait to derive. Also, my proposed fix fo #2785 includes making `App` attributes almost exclusively for `Clap`. Clarifying the names/roles will help communicate this. For prior discussion, see #2583
35 lines
839 B
Rust
35 lines
839 B
Rust
//! `git.rs` serves as a demonstration of how to use subcommands,
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//! as well as a demonstration of adding documentation to subcommands.
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//! Documentation can be added either through doc comments or
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//! `help`/`about` attributes.
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use clap::Parser;
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#[derive(Parser, Debug)]
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#[clap(name = "git")]
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/// the stupid content tracker
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enum Opt {
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/// fetch branches from remote repository
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Fetch {
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#[clap(long)]
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dry_run: bool,
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#[clap(long)]
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all: bool,
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#[clap(default_value = "origin")]
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repository: String,
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},
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#[clap(override_help = "add files to the staging area")]
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Add {
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#[clap(short)]
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interactive: bool,
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#[clap(short)]
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all: bool,
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files: Vec<String>,
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},
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}
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fn main() {
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let matches = Opt::parse();
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println!("{:?}", matches);
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}
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