Struct jj_lib::backend::CopySource

pub struct CopySource {
    pub path: RepoPathBuf,
    pub file: FileId,
    pub commit: Option<CommitId>,
}

An individual copy source.

Fields

path: RepoPathBuf

The source path a target was copied from.

It is not required that the source path is different than the target path. A custom backend may choose to represent ‘rollbacks’ as copies from a file unto itself, from a specific prior commit.

file: FileId

commit: Option<CommitId>

The source commit the target was copied from. If not specified, then the parent of the target commit is the source commit. Backends may use this field to implement ‘integration’ logic, where a source may be periodically merged into a target, similar to a branch, but the branching occurs at the file level rather than the repository level. It also follows naturally that any copy source targeted to a specific commit should avoid copy propagation on rebasing, which is desirable for ‘fork’ style copies.

If specified, it is required that the commit id is an ancestor of the commit with which this copy source is associated.

Trait Implementations

impl Clone for CopySource

fn clone(&self) -> CopySource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CopySource

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

Formats the value using the given formatter.

impl Hash for CopySource

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CopySource

fn eq(&self, other: &CopySource) -> 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 Eq for CopySource

impl StructuralPartialEq for CopySource