lazin 1.0.2

Primarily a dotfiles manager
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use crate::{
    common,
    filesystem::init::{init_default_config, init_directory},
};
use clap::Args;
use lazin_error::LazinResult;
use std::path::{Path, PathBuf};

/// Initializes new `lazin` example configuration
///
/// Creates a directory with example configuration files.
#[derive(Args)]
pub(super) struct Init {
    #[arg(
        short = 'd',
        long = "directory",
        help = "Directory to initialize configuration in"
    )]
    directory: Option<PathBuf>,
}

impl Init {
    pub(crate) fn init(&self) -> LazinResult<()> {
        let directory = self.default_or_provided_directory();

        init_directory(directory)?;
        init_default_config(directory)?;

        Ok(())
    }

    fn default_or_provided_directory(&self) -> &Path {
        common::directory(self.directory.as_deref())
    }
}

#[cfg(test)]
mod test {
    use std::path::{Path, PathBuf};

    use crate::{cli::init::Init, common, test::filesystem::tmp::TempDir};

    #[test]
    fn defaults_to_lazin_directory() {
        let init = Init { directory: None };
        assert_eq!(
            init.default_or_provided_directory(),
            common::DEFAULT_DIRECTORY
        );
    }

    #[test]
    fn uses_supplied_directory() {
        let init = Init {
            directory: Some(PathBuf::from("/some/path")),
        };
        assert_eq!(
            init.default_or_provided_directory(),
            Path::new("/some/path")
        );
    }

    #[test]
    fn init_writes_config_into_directory() {
        let temp = TempDir::new();
        let init = Init {
            directory: Some(temp.path().to_path_buf()),
        };

        init.init().expect("init succeeds");

        assert!(temp.path().exists());
        assert!(temp.path().join("workspace.toml").exists());
        assert!(temp.path().join("modules.toml").exists());
    }
}