NewObjectHeaderIter returns an `ObjectHeaderIter` that iterates over the headers in a commit or tag object.

NewOID converts an object ID in hex format (i.e., `[0-9a-f]{40}`) into an `OID`.

NewRepository creates a new repository object that can be used for running `git` commands within that repository.

OIDFromBytes converts a byte slice containing an object ID in binary format into an `OID`.

Parse a `cat-file --batch[-check]` output header line (including the trailing LF).

ParseCommit parses the commit object whose contents are in `data`.

ParseReference parses `line` (a non-LF-terminated line) into a `Reference`.

ParseTag parses the Git tag object whose contents are contained in `data`.

ParseTree parses the tree object whose contents are contained in `data`.

PrefixFilter returns a `ReferenceFilter` that matches references whose names start with the specified `prefix`, which must match at a component boundary.

RegexpFilter returns a `ReferenceFilter` that matches references whose names match the specified `prefix`, which must match the whole reference name.

NullOID is the null object ID; i.e., all zeros.

BatchObjectIter iterates over objects whose names are fed into its stdin.

Commit represents the parts of a commit object that we need.

Config represents the gitconfig, or part of the gitconfig, read by `ReadConfig()`.

ConfigEntry represents an entry in the gitconfig.

ObjectHeaderIter iterates over the headers within a commit or tag object.

ObjectIter iterates over objects in a Git repository.

OID represents the SHA-1 object ID of a Git object, in binary format.

Reference represents a Git reference.

ReferenceIter is an iterator that interates over references.

Repository represents a Git repository on disk.

Tag represents the information that we need about a Git tag object.

Tree represents a Git tree object.

TreeEntry represents an entry in a Git tree object.

TreeIter is an iterator over the entries in a Git tree object.

Combiner combines two `ReferenceFilter`s into one compound one.

ObjectType represents the type of a Git object ("blob", "tree", "commit", "tag", or "missing").