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package config

// RepositoryFormatVersion represents the repository format version,
// as per defined at:
//
//	https://git-scm.com/docs/repository-version
type RepositoryFormatVersion string

const (
	// Version_0 is the format defined by the initial version of git,
	// including but not limited to the format of the repository
	// directory, the repository configuration file, and the object
	// and ref storage.
	//
	// Specifying the complete behavior of git is beyond the scope
	// of this document.
	Version_0 = "0"

	// Version_1 is identical to version 0, with the following exceptions:
	//
	//   1. When reading the core.repositoryformatversion variable, a git
	//		implementation which supports version 1 MUST also read any
	//		configuration keys found in the extensions section of the
	//		configuration file.
	//
	//	 2. If a version-1 repository specifies any extensions.* keys that
	//		the running git has not implemented, the operation MUST NOT proceed.
	//		Similarly, if the value of any known key is not understood by the
	//		implementation, the operation MUST NOT proceed.
	//
	// Note that if no extensions are specified in the config file, then
	// core.repositoryformatversion SHOULD be set to 0 (setting it to 1 provides
	// no benefit, and makes the repository incompatible with older
	// implementations of git).
	Version_1 = "1"

	// DefaultRepositoryFormatVersion holds the default repository format version.
	DefaultRepositoryFormatVersion = Version_0
)

// ObjectFormat defines the object format.
type ObjectFormat string

const (
	// SHA1 represents the object format used for SHA1.
	SHA1 ObjectFormat = "sha1"

	// SHA256 represents the object format used for SHA256.
	SHA256 ObjectFormat = "sha256"

	// DefaultObjectFormat holds the default object format.
	DefaultObjectFormat = SHA1
)