Enum MidxError 

#[non_exhaustive]
pub enum MidxError {
    SignatureMismatch {
        found: u32,
        expected: u32,
    },
    VersionNotRecognized {
        version: u8,
    },
    HashVersionMismatch {
        found: u8,
        expected: u8,
    },
    RequiredPackNameChunkMissing,
    RequiredOidFanoutChunkMissing,
    OidFanoutWrongSize,
    OidFanoutOutOfOrder {
        index: usize,
        first: u32,
        second: u32,
        next: usize,
    },
    RequiredOidLookupChunkMissing,
    OidLookupWrongSize,
    RequiredObjectOffsetsChunkMissing,
    ObjectOffsetsWrongSize,
    PackNameChunkTooShort,
    PackNamesOutOfOrder {
        previous: String,
        name: String,
    },
    LargeOffsetOutOfBounds,
    InvalidChunkTable {
        detail: String,
    },
    NoPacksToIndex,
    UnknownWriteVersion {
        version: i64,
    },
    PreferredPackEmpty {
        pack: String,
    },
    UnknownPreferredPack {
        name: String,
    },
    ReferencedPackMissing {
        pack_index: usize,
    },
    BitmapWriteFailed {
        detail: String,
    },
}

A fatal multi-pack-index condition (Git die() after error: lines).

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.

SignatureMismatch

Trailing or header signature does not match MIDX.

Fields

found: u32

Value read from the file header.

expected: u32

Expected MIDX magic (0x4d494458).

VersionNotRecognized

On-disk format version byte is not supported.

Fields

version: u8

Format version byte read from the file header.

HashVersionMismatch

Header hash-version byte does not match the repository object format.

Fields

found: u8

Hash version byte read from the MIDX header.

expected: u8

Hash version required by the repository object format.

RequiredPackNameChunkMissing

Required pack-names chunk is missing or cannot be parsed.

RequiredOidFanoutChunkMissing

Required OID fanout chunk is missing.

OidFanoutWrongSize

OID fanout chunk size is not 256 × 4 bytes.

OidFanoutOutOfOrder

OID fanout table is not monotonically non-decreasing.

Fields

index: usize

Zero-based fanout bucket index that violated ordering.

first: u32

Fanout count at index (must be ≤ second).

second: u32

Fanout count at the next bucket.

next: usize

Index of the next fanout bucket (index + 1).

RequiredOidLookupChunkMissing

Required OID lookup chunk is missing.

OidLookupWrongSize

OID lookup chunk size does not match num_objects × hash_len.

RequiredObjectOffsetsChunkMissing

Required object-offsets chunk is missing.

ObjectOffsetsWrongSize

Object-offsets chunk size does not match num_objects × 8.

PackNameChunkTooShort

A pack name in the pack-names chunk is not NUL-terminated.

PackNamesOutOfOrder

v1 MIDX pack names are not strictly increasing.

Fields

previous: String

Previous pack file name in sorted order.

name: String

Pack file name that breaks monotonic ordering.

LargeOffsetOutOfBounds

Large-offset chunk does not cover a referenced large offset slot.

InvalidChunkTable

Chunk table of contents could not be parsed (Git die() cases in read_table_of_contents).

Fields

detail: String

Parse failure detail for the chunk table of contents.

NoPacksToIndex

Write attempted with no pack indexes to cover.

UnknownWriteVersion

A write requested an on-disk version other than 1 or 2 (for example through midx.version).

Fields

version: i64

Requested version, as configured.

PreferredPackEmpty

Preferred pack has no objects in the MIDX.

Fields

pack: String

Pack file basename (.pack suffix).

UnknownPreferredPack

Preferred pack name does not appear in the pack list.

Fields

name: String

Preferred pack basename that was not found in the MIDX pack list.

ReferencedPackMissing

An existing MIDX names a pack whose .pack file is missing during rewrite.

Fields

pack_index: usize

Zero-based index into the MIDX pack list.

BitmapWriteFailed

Reachability bitmap generation for a MIDX failed.

Fields

detail: String

Why bitmap generation or writing failed.

Trait Implementations

impl Clone for MidxError

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MidxError

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

Formats the value using the given formatter.

impl Display for MidxError

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

Formats the value using the given formatter.

impl Eq for MidxError

impl Error for MidxError

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<MidxError> for Error

fn from(source: MidxError) -> Self

Converts to this type from the input type.

impl PartialEq for MidxError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for MidxError