Enum Error 

pub enum Error {
    Io(Error),
    Entropy(String),
    Format(String),
    KeyMismatch {
        wanted: [u8; 8],
        have: [u8; 8],
    },
    Crypto(String),
    Config(String),
    NoKey,
    Usage(String),
}

Errors returned by library operations.

The variants line up with the exit codes the binary reports, so a caller can map an error to a code without inspecting its message.

Variants

Io(Error)

Reading the input or writing the output failed.

Entropy(String)

The operating system refused to provide randomness.

Format(String)

The content is not a file this build can read.

KeyMismatch

The file belongs to a different repository key.

Fields

wanted: [u8; 8]

Fingerprint the file asks for.

have: [u8; 8]

Fingerprint we actually hold.

Crypto(String)

Authentication failed, or the cipher refused the input.

Config(String)

The repository is not in a state this command can act on.

NoKey

No repository key is present.

Usage(String)

The command line asked for something impossible.

Implementations

impl Error

pub fn exit_code(&self) -> u8

The process exit code this error reports.

Callers map errors to codes here rather than at each call site, so the set stays consistent across every command.

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<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.