clap_cargo/
manifest.rs

1//! Cargo flag for selecting the relevant crate.
2
3use std::path;
4
5/// Cargo flag for selecting the relevant crate.
6#[derive(Default, Clone, Debug, PartialEq, Eq)]
7#[cfg_attr(feature = "clap", derive(clap::Args))]
8#[cfg_attr(feature = "clap", command(about = None, long_about = None))]
9#[non_exhaustive]
10pub struct Manifest {
11    #[cfg_attr(feature = "clap", arg(long, name = "PATH"))]
12    /// Path to Cargo.toml
13    pub manifest_path: Option<path::PathBuf>,
14}
15
16#[cfg(feature = "cargo_metadata")]
17impl Manifest {
18    /// Create a `cargo_metadata::MetadataCommand`
19    ///
20    /// Note: Requires the features `cargo_metadata`.
21    pub fn metadata(&self) -> cargo_metadata::MetadataCommand {
22        let mut c = cargo_metadata::MetadataCommand::new();
23        if let Some(ref manifest_path) = self.manifest_path {
24            c.manifest_path(manifest_path);
25        }
26        c
27    }
28}
29
30#[cfg(test)]
31mod test {
32    use super::*;
33
34    #[test]
35    #[cfg(feature = "clap")]
36    fn verify_app() {
37        #[derive(Debug, clap::Parser)]
38        struct Cli {
39            #[command(flatten)]
40            manifest: Manifest,
41        }
42
43        use clap::CommandFactory;
44        Cli::command().debug_assert();
45    }
46
47    #[cfg(feature = "cargo_metadata")]
48    #[test]
49    fn metadata_with_path() {
50        let manifest = Manifest {
51            manifest_path: Some(path::PathBuf::from("tests/fixtures/simple/Cargo.toml")),
52        };
53        let metadata = manifest.metadata();
54        metadata.exec().unwrap();
55        // TODO verify we forwarded correctly.
56    }
57
58    #[cfg(feature = "cargo_metadata")]
59    #[test]
60    fn metadata_without_path() {
61        let cwd = path::PathBuf::from("tests/fixtures/simple");
62        let manifest = Manifest {
63            manifest_path: None,
64        };
65        let mut metadata = manifest.metadata();
66        metadata.current_dir(cwd).exec().unwrap();
67        // TODO verify we forwarded correctly.
68    }
69}
clap_cargo/manifest.rs

clap_cargo/
manifest.rs
