weave-loom · error

#[derive(Debug, Error)]
#[allow(dead_code)]
pub enum LoomError {
    /// No `.loom/` directory was found walking up from the current directory.
    #[error("not a loom repository (or any parent up to mount point /): no .loom/ directory")]
    NotARepository,

    /// A loom repository already exists at the requested path.
    #[error("loom repository already exists at {0}")]
    AlreadyInitialized(PathBuf),

    /// The named ref does not exist.
    #[error("ref not found: {0}")]
    RefNotFound(String),

    /// The working tree contains uncommitted changes that would be lost.
    #[error("uncommitted changes would be overwritten: {0}")]
    UncommittedChanges(String),

    /// A path was outside the repository root.
    #[error("path is outside the repository: {0}")]
    PathOutsideRepo(PathBuf),

    /// Repository configuration is malformed or missing required fields.
    #[error("invalid repository config: {0}")]
    InvalidConfig(String),

    /// Required identity material is missing.
    #[error("no signing identity available; run `loom identity create`")]
    MissingIdentity,

    /// A commit entry on the strand was malformed.
    #[error("malformed commit at seq {seq}: {reason}")]
    MalformedCommit {
        /// Sequence number of the malformed commit.
        seq: u64,
        /// Human-readable reason.
        reason: String,
    },

    /// Filesystem or I/O error.
    #[error("io error: {0}")]
    Io(#[from] std::io::Error),

    /// JSON (de)serialization error.
    #[error("serialization error: {0}")]
    Json(#[from] serde_json::Error),

    /// Errors propagated from the Weave SDK.
    #[error("weave error: {0}")]
    Weave(String),

    /// Errors propagated from the Strand crate.
    #[error("strand error: {0}")]
    Strand(String),

    /// Errors propagated from the Locus crate.
    #[error("locus error: {0}")]
    Locus(String),

    /// Errors propagated from the Lens crate.
    #[error("lens error: {0}")]
    Lens(String),

    /// A precondition failed (e.g. dirty index when a clean tree is required).
    #[error("{0}")]
    Other(String),
}

pub type Result<T> = std::result::Result<T, LoomError>;