Enum ImportMode

pub enum ImportMode {
    Copy,
    TryReference,
}

The import mode describes how files will be imported.

This is a hint to the import trait method. For some implementations, this does not make any sense. E.g. an in memory implementation will always have to copy the file into memory. Also, a disk based implementation might choose to copy small files even if the mode is Reference.

Variants

Copy

This mode will copy the file into the database before hashing.

This is the safe default because the file can not be accidentally modified after it has been imported.

TryReference

This mode will try to reference the file in place and assume it is unchanged after import.

This has a large performance and storage benefit, but it is less safe since the file might be modified after it has been imported.

Stores are allowed to ignore this mode and always copy the file, e.g. if the file is very small or if the store does not support referencing files.

Trait Implementations

impl Clone for ImportMode

fn clone(&self) -> ImportMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ImportMode

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

Formats the value using the given formatter.

impl Default for ImportMode

fn default() -> ImportMode

Returns the “default value” for a type.

impl PartialEq for ImportMode

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ImportMode

impl Eq for ImportMode

impl StructuralPartialEq for ImportMode