Enum Error 

#[non_exhaustive]
pub enum Error {
    Sqlite(Error),
    Git(Box<dyn Error + Send + Sync>),
    Json(Error),
    UnknownTargetType(String),
    InvalidTarget(String),
    InvalidKey(String),
    UnknownValueType(String),
    KeyNotFound {
        key: String,
    },
    TypeMismatch {
        key: String,
        expected: String,
    },
    ValueNotFound(String),
    IndexOutOfRange {
        index: usize,
        size: usize,
    },
    InvalidValue(String),
    NotARepository,
    ResolveError(String),
    GitCommand(String),
    NoRemotes,
    RemoteNotFound(String),
    InvalidFilterRule(String),
    InvalidTreePath(String),
    Other(String),
}

Typed error enum for all gmeta operations.

Covers database, git, parsing, and domain-specific errors. External consumers can match on variants to handle specific failure modes.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Sqlite(Error)

SQLite operation failed.

Git(Box<dyn Error + Send + Sync>)

Git operation failed.

Json(Error)

JSON serialization or deserialization failed.

UnknownTargetType(String)

Unknown target type string (e.g. not “commit”, “branch”, etc.).

InvalidTarget(String)

Target string could not be parsed (wrong format, too short, etc.).

InvalidKey(String)

Key validation failed (empty, reserved segment, invalid characters).

UnknownValueType(String)

Unknown value type string (not “string”, “list”, or “set”).

KeyNotFound

Metadata key does not exist for the given target.

Fields

key: String

The key that was not found.

TypeMismatch

Key exists but has a different value type than expected.

Fields

key: String

The key whose type didn’t match.

expected: String

The type that was expected (e.g. “list”, “set”).

ValueNotFound(String)

A specific value was not found in a list or set.

IndexOutOfRange

Index is out of range for a list operation.

Fields

index: usize

The requested index.

size: usize

The actual size of the collection.

InvalidValue(String)

A value was malformed or invalid (JSON encoding, list entry format, etc.).

NotARepository

No git repository found in the current directory or any parent.

ResolveError(String)

Could not resolve a partial commit SHA or ref.

GitCommand(String)

A git subprocess command failed.

NoRemotes

No metadata remotes are configured.

RemoteNotFound(String)

The specified remote is not a metadata remote.

InvalidFilterRule(String)

A filter rule string could not be parsed.

InvalidTreePath(String)

A tree path could not be parsed or is structurally invalid.

Other(String)

Catch-all for errors that don’t fit other variants.

Trait Implementations

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Box<dyn Error + Sync + Send>> for Error

fn from(source: Box<dyn Error + Send + Sync>) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.