object

package
Version: v5.2.1 Latest Latest
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Published: Nov 14, 2020 License: Apache-2.0 Imports: 29 Imported by: 0

Documentation

Overview

Package object contains implementations of all Git objects and utility functions to work with them.

Index

Constants

View Source
const DateFormat = "Mon Jan 02 15:04:05 2006 -0700"

DateFormat is the format being used in the original git implementation

Variables

View Source
var (
	ErrMaxTreeDepth      = errors.New("maximum tree depth exceeded")
	ErrFileNotFound      = errors.New("file not found")
	ErrDirectoryNotFound = errors.New("directory not found")
	ErrEntryNotFound     = errors.New("entry not found")
)

New errors defined by this package.

View Source
var DefaultDiffTreeOptions = &DiffTreeOptions{
	DetectRenames:    true,
	RenameScore:      60,
	RenameLimit:      0,
	OnlyExactRenames: false,
}

DefaultDiffTreeOptions are the default and recommended options for the diff tree.

View Source
var (
	ErrCanceled = errors.New("operation canceled")
)
View Source
var ErrParentNotFound = errors.New("commit parent not found")
View Source
var ErrUnsupportedObject = errors.New("unsupported object type")

ErrUnsupportedObject trigger when a non-supported object is being decoded.

Functions

func NewTreeRootNode

func NewTreeRootNode(t *Tree) noder.Noder

NewTreeRootNode returns the root node of a Tree

Types

type Blob

type Blob struct {
	// Hash of the blob.
	Hash plumbing.Hash
	// Size of the (uncompressed) blob.
	Size int64
	// contains filtered or unexported fields
}

Blob is used to store arbitrary data - it is generally a file.

func DecodeBlob

func DecodeBlob(o plumbing.EncodedObject) (*Blob, error)

DecodeObject decodes an encoded object into a *Blob.

func GetBlob

GetBlob gets a blob from an object storer and decodes it.

func (*Blob) Decode

func (b *Blob) Decode(o plumbing.EncodedObject) error

Decode transforms a plumbing.EncodedObject into a Blob struct.

func (*Blob) Encode

func (b *Blob) Encode(o plumbing.EncodedObject) (err error)

Encode transforms a Blob into a plumbing.EncodedObject.

func (*Blob) ID

func (b *Blob) ID() plumbing.Hash

ID returns the object ID of the blob. The returned value will always match the current value of Blob.Hash.

ID is present to fulfill the Object interface.

func (*Blob) Reader

func (b *Blob) Reader() (io.ReadCloser, error)

Reader returns a reader allow the access to the content of the blob

func (*Blob) Type

func (b *Blob) Type() plumbing.ObjectType

Type returns the type of object. It always returns plumbing.BlobObject.

Type is present to fulfill the Object interface.

type BlobIter

type BlobIter struct {
	storer.EncodedObjectIter
	// contains filtered or unexported fields
}

BlobIter provides an iterator for a set of blobs.

func NewBlobIter

NewBlobIter takes a storer.EncodedObjectStorer and a storer.EncodedObjectIter and returns a *BlobIter that iterates over all blobs contained in the storer.EncodedObjectIter.

Any non-blob object returned by the storer.EncodedObjectIter is skipped.

func (*BlobIter) ForEach

func (iter *BlobIter) ForEach(cb func(*Blob) error) error

ForEach call the cb function for each blob contained on this iter until an error happens or the end of the iter is reached. If ErrStop is sent the iteration is stop but no error is returned. The iterator is closed.

func (*BlobIter) Next

func (iter *BlobIter) Next() (*Blob, error)

Next moves the iterator to the next blob and returns a pointer to it. If there are no more blobs, it returns io.EOF.

type Change

type Change struct {
	From ChangeEntry
	To   ChangeEntry
}

Change values represent a detected change between two git trees. For modifications, From is the original status of the node and To is its final status. For insertions, From is the zero value and for deletions To is the zero value.

func (*Change) Action

func (c *Change) Action() (merkletrie.Action, error)

Action returns the kind of action represented by the change, an insertion, a deletion or a modification.

func (*Change) Files

func (c *Change) Files() (from, to *File, err error)

Files return the files before and after a change. For insertions from will be nil. For deletions to will be nil.

func (*Change) Patch

func (c *Change) Patch() (*Patch, error)

Patch returns a Patch with all the file changes in chunks. This representation can be used to create several diff outputs.

func (*Change) PatchContext

func (c *Change) PatchContext(ctx context.Context) (*Patch, error)

Patch returns a Patch with all the file changes in chunks. This representation can be used to create several diff outputs. If context expires, an non-nil error will be returned Provided context must be non-nil

func (*Change) String

func (c *Change) String() string

type ChangeEntry

type ChangeEntry struct {
	// Full path of the node using "/" as separator.
	Name string
	// Parent tree of the node that has changed.
	Tree *Tree
	// The entry of the node.
	TreeEntry TreeEntry
}

ChangeEntry values represent a node that has suffered a change.

type Changes

type Changes []*Change

Changes represents a collection of changes between two git trees. Implements sort.Interface lexicographically over the path of the changed files.

func DetectRenames

func DetectRenames(
	changes Changes,
	opts *DiffTreeOptions,
) (Changes, error)

DetectRenames detects the renames in the given changes on two trees with the given options. It will return the given changes grouping additions and deletions into modifications when possible. If options is nil, the default diff tree options will be used.

func DiffTree

func DiffTree(a, b *Tree) (Changes, error)

DiffTree compares the content and mode of the blobs found via two tree objects. DiffTree does not perform rename detection, use DiffTreeWithOptions instead to detect renames.

func DiffTreeContext

func DiffTreeContext(ctx context.Context, a, b *Tree) (Changes, error)

DiffTreeContext compares the content and mode of the blobs found via two tree objects. Provided context must be non-nil. An error will be returned if context expires.

func DiffTreeWithOptions

func DiffTreeWithOptions(
	ctx context.Context,
	a, b *Tree,
	opts *DiffTreeOptions,
) (Changes, error)

DiffTreeWithOptions compares the content and mode of the blobs found via two tree objects with the given options. The provided context must be non-nil. If no options are passed, no rename detection will be performed. The recommended options are DefaultDiffTreeOptions. An error will be returned if the context expires. This function will be deprecated and removed in v6 so the default behaviour of DiffTree is to detect renames.

func (Changes) Len

func (c Changes) Len() int

func (Changes) Less

func (c Changes) Less(i, j int) bool

func (Changes) Patch

func (c Changes) Patch() (*Patch, error)

Patch returns a Patch with all the changes in chunks. This representation can be used to create several diff outputs.

func (Changes) PatchContext

func (c Changes) PatchContext(ctx context.Context) (*Patch, error)

Patch returns a Patch with all the changes in chunks. This representation can be used to create several diff outputs. If context expires, an non-nil error will be returned Provided context must be non-nil

func (Changes) String

func (c Changes) String() string

func (Changes) Swap

func (c Changes) Swap(i, j int)

type Commit

type Commit struct {
	// Hash of the commit object.
	Hash plumbing.Hash
	// Author is the original author of the commit.
	Author Signature
	// Committer is the one performing the commit, might be different from
	// Author.
	Committer Signature
	// PGPSignature is the PGP signature of the commit.
	PGPSignature string
	// Message is the commit message, contains arbitrary text.
	Message string
	// TreeHash is the hash of the root tree of the commit.
	TreeHash plumbing.Hash
	// ParentHashes are the hashes of the parent commits of the commit.
	ParentHashes []plumbing.Hash
	// contains filtered or unexported fields
}

Commit points to a single tree, marking it as what the project looked like at a certain point in time. It contains meta-information about that point in time, such as a timestamp, the author of the changes since the last commit, a pointer to the previous commit(s), etc. http://shafiulazam.com/gitbook/1_the_git_object_model.html

func DecodeCommit

DecodeCommit decodes an encoded object into a *Commit and associates it to the given object storer.

func GetCommit

func GetCommit(s storer.EncodedObjectStorer, h plumbing.Hash) (*Commit, error)

GetCommit gets a commit from an object storer and decodes it.

func Independents

func Independents(commits []*Commit) ([]*Commit, error)

Independents returns a subset of the passed commits, that are not reachable the others It mimics the behavior of `git merge-base --independent commit...`.

func (*Commit) Decode

func (c *Commit) Decode(o plumbing.EncodedObject) (err error)

Decode transforms a plumbing.EncodedObject into a Commit struct.

func (*Commit) Encode

func (c *Commit) Encode(o plumbing.EncodedObject) error

Encode transforms a Commit into a plumbing.EncodedObject.

func (*Commit) EncodeWithoutSignature

func (c *Commit) EncodeWithoutSignature(o plumbing.EncodedObject) error

EncodeWithoutSignature export a Commit into a plumbing.EncodedObject without the signature (correspond to the payload of the PGP signature).

func (*Commit) File

func (c *Commit) File(path string) (*File, error)

File returns the file with the specified "path" in the commit and a nil error if the file exists. If the file does not exist, it returns a nil file and the ErrFileNotFound error.

func (*Commit) Files

func (c *Commit) Files() (*FileIter, error)

Files returns a FileIter allowing to iterate over the Tree

func (*Commit) ID

func (c *Commit) ID() plumbing.Hash

ID returns the object ID of the commit. The returned value will always match the current value of Commit.Hash.

ID is present to fulfill the Object interface.

func (*Commit) IsAncestor

func (c *Commit) IsAncestor(other *Commit) (bool, error)

IsAncestor returns true if the actual commit is ancestor of the passed one. It returns an error if the history is not transversable It mimics the behavior of `git merge --is-ancestor actual other`

func (*Commit) MergeBase

func (c *Commit) MergeBase(other *Commit) ([]*Commit, error)

MergeBase mimics the behavior of `git merge-base actual other`, returning the best common ancestor between the actual and the passed one. The best common ancestors can not be reached from other common ancestors.

func (*Commit) NumParents

func (c *Commit) NumParents() int

NumParents returns the number of parents in a commit.

func (*Commit) Parent

func (c *Commit) Parent(i int) (*Commit, error)

Parent returns the ith parent of a commit.

func (*Commit) Parents

func (c *Commit) Parents() CommitIter

Parents return a CommitIter to the parent Commits.

func (*Commit) Patch

func (c *Commit) Patch(to *Commit) (*Patch, error)

Patch returns the Patch between the actual commit and the provided one.

NOTE: Since version 5.1.0 the renames are correctly handled, the settings used are the recommended options DefaultDiffTreeOptions.

func (*Commit) PatchContext

func (c *Commit) PatchContext(ctx context.Context, to *Commit) (*Patch, error)

PatchContext returns the Patch between the actual commit and the provided one. Error will be return if context expires. Provided context must be non-nil.

NOTE: Since version 5.1.0 the renames are correctly handled, the settings used are the recommended options DefaultDiffTreeOptions.

func (*Commit) Stats

func (c *Commit) Stats() (FileStats, error)

Stats returns the stats of a commit.

func (*Commit) StatsContext

func (c *Commit) StatsContext(ctx context.Context) (FileStats, error)

StatsContext returns the stats of a commit. Error will be return if context expires. Provided context must be non-nil.

func (*Commit) String

func (c *Commit) String() string

func (*Commit) Tree

func (c *Commit) Tree() (*Tree, error)

Tree returns the Tree from the commit.

func (*Commit) Type

func (c *Commit) Type() plumbing.ObjectType

Type returns the type of object. It always returns plumbing.CommitObject.

Type is present to fulfill the Object interface.

func (*Commit) Verify

func (c *Commit) Verify(armoredKeyRing string) (*openpgp.Entity, error)

Verify performs PGP verification of the commit with a provided armored keyring and returns openpgp.Entity associated with verifying key on success.

type CommitFilter

type CommitFilter func(*Commit) bool

CommitFilter returns a boolean for the passed Commit

type CommitIter

type CommitIter interface {
	Next() (*Commit, error)
	ForEach(func(*Commit) error) error
	Close()
}

CommitIter is a generic closable interface for iterating over commits.

func NewCommitAllIter

func NewCommitAllIter(repoStorer storage.Storer, commitIterFunc func(*Commit) CommitIter) (CommitIter, error)

NewCommitAllIter returns a new commit iterator for all refs. repoStorer is a repo Storer used to get commits and references. commitIterFunc is a commit iterator function, used to iterate through ref commits in chosen order

func NewCommitFileIterFromIter

func NewCommitFileIterFromIter(fileName string, commitIter CommitIter, checkParent bool) CommitIter

NewCommitFileIterFromIter is kept for compatibility, can be replaced with NewCommitPathIterFromIter

func NewCommitIter

NewCommitIter takes a storer.EncodedObjectStorer and a storer.EncodedObjectIter and returns a CommitIter that iterates over all commits contained in the storer.EncodedObjectIter.

Any non-commit object returned by the storer.EncodedObjectIter is skipped.

func NewCommitIterBSF

func NewCommitIterBSF(
	c *Commit,
	seenExternal map[plumbing.Hash]bool,
	ignore []plumbing.Hash,
) CommitIter

NewCommitIterBSF returns a CommitIter that walks the commit history, starting at the given commit and visiting its parents in pre-order. The given callback will be called for each visited commit. Each commit will be visited only once. If the callback returns an error, walking will stop and will return the error. Other errors might be returned if the history cannot be traversed (e.g. missing objects). Ignore allows to skip some commits from being iterated.

func NewCommitIterCTime

func NewCommitIterCTime(
	c *Commit,
	seenExternal map[plumbing.Hash]bool,
	ignore []plumbing.Hash,
) CommitIter

NewCommitIterCTime returns a CommitIter that walks the commit history, starting at the given commit and visiting its parents while preserving Committer Time order. this appears to be the closest order to `git log` The given callback will be called for each visited commit. Each commit will be visited only once. If the callback returns an error, walking will stop and will return the error. Other errors might be returned if the history cannot be traversed (e.g. missing objects). Ignore allows to skip some commits from being iterated.

func NewCommitLimitIterFromIter

func NewCommitLimitIterFromIter(commitIter CommitIter, limitOptions LogLimitOptions) CommitIter

func NewCommitPathIterFromIter

func NewCommitPathIterFromIter(pathFilter func(string) bool, commitIter CommitIter, checkParent bool) CommitIter

NewCommitPathIterFromIter returns a commit iterator which performs diffTree between successive trees returned from the commit iterator from the argument. The purpose of this is to find the commits that explain how the files that match the path came to be. If checkParent is true then the function double checks if potential parent (next commit in a path) is one of the parents in the tree (it's used by `git log --all`). pathFilter is a function that takes path of file as argument and returns true if we want it

func NewCommitPostorderIter

func NewCommitPostorderIter(c *Commit, ignore []plumbing.Hash) CommitIter

NewCommitPostorderIter returns a CommitIter that walks the commit history like WalkCommitHistory but in post-order. This means that after walking a merge commit, the merged commit will be walked before the base it was merged on. This can be useful if you wish to see the history in chronological order. Ignore allows to skip some commits from being iterated.

func NewCommitPreorderIter

func NewCommitPreorderIter(
	c *Commit,
	seenExternal map[plumbing.Hash]bool,
	ignore []plumbing.Hash,
) CommitIter

NewCommitPreorderIter returns a CommitIter that walks the commit history, starting at the given commit and visiting its parents in pre-order. The given callback will be called for each visited commit. Each commit will be visited only once. If the callback returns an error, walking will stop and will return the error. Other errors might be returned if the history cannot be traversed (e.g. missing objects). Ignore allows to skip some commits from being iterated.

func NewFilterCommitIter

func NewFilterCommitIter(
	from *Commit,
	isValid *CommitFilter,
	isLimit *CommitFilter,
) CommitIter

NewFilterCommitIter returns a CommitIter that walks the commit history, starting at the passed commit and visiting its parents in Breadth-first order. The commits returned by the CommitIter will validate the passed CommitFilter. The history won't be transversed beyond a commit if isLimit is true for it. Each commit will be visited only once. If the commit history can not be traversed, or the Close() method is called, the CommitIter won't return more commits. If no isValid is passed, all ancestors of from commit will be valid. If no isLimit is limit, all ancestors of all commits will be visited.

type DiffTreeOptions

type DiffTreeOptions struct {
	// DetectRenames is whether the diff tree will use rename detection.
	DetectRenames bool
	// RenameScore is the threshold to of similarity between files to consider
	// that a pair of delete and insert are a rename. The number must be
	// exactly between 0 and 100.
	RenameScore uint
	// RenameLimit is the maximum amount of files that can be compared when
	// detecting renames. The number of comparisons that have to be performed
	// is equal to the number of deleted files * the number of added files.
	// That means, that if 100 files were deleted and 50 files were added, 5000
	// file comparisons may be needed. So, if the rename limit is 50, the number
	// of both deleted and added needs to be equal or less than 50.
	// A value of 0 means no limit.
	RenameLimit uint
	// OnlyExactRenames performs only detection of exact renames and will not perform
	// any detection of renames based on file similarity.
	OnlyExactRenames bool
}

DiffTreeOptions are the configurable options when performing a diff tree.

type File

type File struct {
	// Name is the path of the file. It might be relative to a tree,
	// depending of the function that generates it.
	Name string
	// Mode is the file mode.
	Mode filemode.FileMode
	// Blob with the contents of the file.
	Blob
}

File represents git file objects.

func NewFile

func NewFile(name string, m filemode.FileMode, b *Blob) *File

NewFile returns a File based on the given blob object

func (*File) Contents

func (f *File) Contents() (content string, err error)

Contents returns the contents of a file as a string.

func (*File) IsBinary

func (f *File) IsBinary() (bin bool, err error)

IsBinary returns if the file is binary or not

func (*File) Lines

func (f *File) Lines() ([]string, error)

Lines returns a slice of lines from the contents of a file, stripping all end of line characters. If the last line is empty (does not end in an end of line), it is also stripped.

type FileIter

type FileIter struct {
	// contains filtered or unexported fields
}

FileIter provides an iterator for the files in a tree.

func NewFileIter

func NewFileIter(s storer.EncodedObjectStorer, t *Tree) *FileIter

NewFileIter takes a storer.EncodedObjectStorer and a Tree and returns a *FileIter that iterates over all files contained in the tree, recursively.

func (*FileIter) Close

func (iter *FileIter) Close()

func (*FileIter) ForEach

func (iter *FileIter) ForEach(cb func(*File) error) error

ForEach call the cb function for each file contained in this iter until an error happens or the end of the iter is reached. If plumbing.ErrStop is sent the iteration is stop but no error is returned. The iterator is closed.

func (*FileIter) Next

func (iter *FileIter) Next() (*File, error)

Next moves the iterator to the next file and returns a pointer to it. If there are no more files, it returns io.EOF.

type FileStat

type FileStat struct {
	Name     string
	Addition int
	Deletion int
}

FileStat stores the status of changes in content of a file.

func (FileStat) String

func (fs FileStat) String() string

type FileStats

type FileStats []FileStat

FileStats is a collection of FileStat.

func (FileStats) String

func (fileStats FileStats) String() string

type Hash

type Hash plumbing.Hash

Hash represents the hash of an object

type LogLimitOptions

type LogLimitOptions struct {
	Since *time.Time
	Until *time.Time
}

type Object

type Object interface {
	ID() plumbing.Hash
	Type() plumbing.ObjectType
	Decode(plumbing.EncodedObject) error
	Encode(plumbing.EncodedObject) error
}

Object is a generic representation of any git object. It is implemented by Commit, Tree, Blob, and Tag, and includes the functions that are common to them.

Object is returned when an object can be of any type. It is frequently used with a type cast to acquire the specific type of object:

func process(obj Object) {
	switch o := obj.(type) {
	case *Commit:
		// o is a Commit
	case *Tree:
		// o is a Tree
	case *Blob:
		// o is a Blob
	case *Tag:
		// o is a Tag
	}
}

This interface is intentionally different from plumbing.EncodedObject, which is a lower level interface used by storage implementations to read and write objects in its encoded form.

func DecodeObject

DecodeObject decodes an encoded object into an Object and associates it to the given object storer.

func GetObject

GetObject gets an object from an object storer and decodes it.

type ObjectIter

type ObjectIter struct {
	storer.EncodedObjectIter
	// contains filtered or unexported fields
}

ObjectIter provides an iterator for a set of objects.

func NewObjectIter

NewObjectIter takes a storer.EncodedObjectStorer and a storer.EncodedObjectIter and returns an *ObjectIter that iterates over all objects contained in the storer.EncodedObjectIter.

func (*ObjectIter) ForEach

func (iter *ObjectIter) ForEach(cb func(Object) error) error

ForEach call the cb function for each object contained on this iter until an error happens or the end of the iter is reached. If ErrStop is sent the iteration is stop but no error is returned. The iterator is closed.

func (*ObjectIter) Next

func (iter *ObjectIter) Next() (Object, error)

Next moves the iterator to the next object and returns a pointer to it. If there are no more objects, it returns io.EOF.

type Patch

type Patch struct {
	// contains filtered or unexported fields
}

Patch is an implementation of fdiff.Patch interface

func (*Patch) Encode

func (p *Patch) Encode(w io.Writer) error

func (*Patch) FilePatches

func (p *Patch) FilePatches() []fdiff.FilePatch

func (*Patch) Message

func (p *Patch) Message() string

func (*Patch) Stats

func (p *Patch) Stats() FileStats

func (*Patch) String

func (p *Patch) String() string

type Signature

type Signature struct {
	// Name represents a person name. It is an arbitrary string.
	Name string
	// Email is an email, but it cannot be assumed to be well-formed.
	Email string
	// When is the timestamp of the signature.
	When time.Time
}

Signature is used to identify who and when created a commit or tag.

func (*Signature) Decode

func (s *Signature) Decode(b []byte)

Decode decodes a byte slice into a signature

func (*Signature) Encode

func (s *Signature) Encode(w io.Writer) error

Encode encodes a Signature into a writer.

func (*Signature) String

func (s *Signature) String() string

type Tag

type Tag struct {
	// Hash of the tag.
	Hash plumbing.Hash
	// Name of the tag.
	Name string
	// Tagger is the one who created the tag.
	Tagger Signature
	// Message is an arbitrary text message.
	Message string
	// PGPSignature is the PGP signature of the tag.
	PGPSignature string
	// TargetType is the object type of the target.
	TargetType plumbing.ObjectType
	// Target is the hash of the target object.
	Target plumbing.Hash
	// contains filtered or unexported fields
}

Tag represents an annotated tag object. It points to a single git object of any type, but tags typically are applied to commit or blob objects. It provides a reference that associates the target with a tag name. It also contains meta-information about the tag, including the tagger, tag date and message.

Note that this is not used for lightweight tags.

https://git-scm.com/book/en/v2/Git-Internals-Git-References#Tags

func DecodeTag

DecodeTag decodes an encoded object into a *Commit and associates it to the given object storer.

func GetTag

GetTag gets a tag from an object storer and decodes it.

func (*Tag) Blob

func (t *Tag) Blob() (*Blob, error)

Blob returns the blob pointed to by the tag. If the tag points to a different type of object ErrUnsupportedObject will be returned.

func (*Tag) Commit

func (t *Tag) Commit() (*Commit, error)

Commit returns the commit pointed to by the tag. If the tag points to a different type of object ErrUnsupportedObject will be returned.

func (*Tag) Decode

func (t *Tag) Decode(o plumbing.EncodedObject) (err error)

Decode transforms a plumbing.EncodedObject into a Tag struct.

func (*Tag) Encode

func (t *Tag) Encode(o plumbing.EncodedObject) error

Encode transforms a Tag into a plumbing.EncodedObject.

func (*Tag) EncodeWithoutSignature

func (t *Tag) EncodeWithoutSignature(o plumbing.EncodedObject) error

EncodeWithoutSignature export a Tag into a plumbing.EncodedObject without the signature (correspond to the payload of the PGP signature).

func (*Tag) ID

func (t *Tag) ID() plumbing.Hash

ID returns the object ID of the tag, not the object that the tag references. The returned value will always match the current value of Tag.Hash.

ID is present to fulfill the Object interface.

func (*Tag) Object

func (t *Tag) Object() (Object, error)

Object returns the object pointed to by the tag.

func (*Tag) String

func (t *Tag) String() string

String returns the meta information contained in the tag as a formatted string.

func (*Tag) Tree

func (t *Tag) Tree() (*Tree, error)

Tree returns the tree pointed to by the tag. If the tag points to a commit object the tree of that commit will be returned. If the tag does not point to a commit or tree object ErrUnsupportedObject will be returned.

func (*Tag) Type

func (t *Tag) Type() plumbing.ObjectType

Type returns the type of object. It always returns plumbing.TagObject.

Type is present to fulfill the Object interface.

func (*Tag) Verify

func (t *Tag) Verify(armoredKeyRing string) (*openpgp.Entity, error)

Verify performs PGP verification of the tag with a provided armored keyring and returns openpgp.Entity associated with verifying key on success.

type TagIter

type TagIter struct {
	storer.EncodedObjectIter
	// contains filtered or unexported fields
}

TagIter provides an iterator for a set of tags.

func NewTagIter

NewTagIter takes a storer.EncodedObjectStorer and a storer.EncodedObjectIter and returns a *TagIter that iterates over all tags contained in the storer.EncodedObjectIter.

Any non-tag object returned by the storer.EncodedObjectIter is skipped.

func (*TagIter) ForEach

func (iter *TagIter) ForEach(cb func(*Tag) error) error

ForEach call the cb function for each tag contained on this iter until an error happens or the end of the iter is reached. If ErrStop is sent the iteration is stop but no error is returned. The iterator is closed.

func (*TagIter) Next

func (iter *TagIter) Next() (*Tag, error)

Next moves the iterator to the next tag and returns a pointer to it. If there are no more tags, it returns io.EOF.

type Tree

type Tree struct {
	Entries []TreeEntry
	Hash    plumbing.Hash
	// contains filtered or unexported fields
}

Tree is basically like a directory - it references a bunch of other trees and/or blobs (i.e. files and sub-directories)

func DecodeTree

DecodeTree decodes an encoded object into a *Tree and associates it to the given object storer.

func GetTree

GetTree gets a tree from an object storer and decodes it.

func (*Tree) Decode

func (t *Tree) Decode(o plumbing.EncodedObject) (err error)

Decode transform an plumbing.EncodedObject into a Tree struct

func (*Tree) Diff

func (t *Tree) Diff(to *Tree) (Changes, error)

Diff returns a list of changes between this tree and the provided one

func (*Tree) DiffContext

func (t *Tree) DiffContext(ctx context.Context, to *Tree) (Changes, error)

DiffContext returns a list of changes between this tree and the provided one Error will be returned if context expires. Provided context must be non nil.

NOTE: Since version 5.1.0 the renames are correctly handled, the settings used are the recommended options DefaultDiffTreeOptions.

func (*Tree) Encode

func (t *Tree) Encode(o plumbing.EncodedObject) (err error)

Encode transforms a Tree into a plumbing.EncodedObject.

func (*Tree) File

func (t *Tree) File(path string) (*File, error)

File returns the hash of the file identified by the `path` argument. The path is interpreted as relative to the tree receiver.

func (*Tree) Files

func (t *Tree) Files() *FileIter

Files returns a FileIter allowing to iterate over the Tree

func (*Tree) FindEntry

func (t *Tree) FindEntry(path string) (*TreeEntry, error)

FindEntry search a TreeEntry in this tree or any subtree.

func (*Tree) ID

func (t *Tree) ID() plumbing.Hash

ID returns the object ID of the tree. The returned value will always match the current value of Tree.Hash.

ID is present to fulfill the Object interface.

func (*Tree) Patch

func (t *Tree) Patch(to *Tree) (*Patch, error)

Patch returns a slice of Patch objects with all the changes between trees in chunks. This representation can be used to create several diff outputs.

func (*Tree) PatchContext

func (t *Tree) PatchContext(ctx context.Context, to *Tree) (*Patch, error)

PatchContext returns a slice of Patch objects with all the changes between trees in chunks. This representation can be used to create several diff outputs. If context expires, an error will be returned. Provided context must be non-nil.

NOTE: Since version 5.1.0 the renames are correctly handled, the settings used are the recommended options DefaultDiffTreeOptions.

func (*Tree) Size

func (t *Tree) Size(path string) (int64, error)

Size returns the plaintext size of an object, without reading it into memory.

func (*Tree) Tree

func (t *Tree) Tree(path string) (*Tree, error)

Tree returns the tree identified by the `path` argument. The path is interpreted as relative to the tree receiver.

func (*Tree) TreeEntryFile

func (t *Tree) TreeEntryFile(e *TreeEntry) (*File, error)

TreeEntryFile returns the *File for a given *TreeEntry.

func (*Tree) Type

func (t *Tree) Type() plumbing.ObjectType

Type returns the type of object. It always returns plumbing.TreeObject.

type TreeEntry

type TreeEntry struct {
	Name string
	Mode filemode.FileMode
	Hash plumbing.Hash
}

TreeEntry represents a file

type TreeIter

type TreeIter struct {
	storer.EncodedObjectIter
	// contains filtered or unexported fields
}

TreeIter provides an iterator for a set of trees.

func NewTreeIter

NewTreeIter takes a storer.EncodedObjectStorer and a storer.EncodedObjectIter and returns a *TreeIter that iterates over all tree contained in the storer.EncodedObjectIter.

Any non-tree object returned by the storer.EncodedObjectIter is skipped.

func (*TreeIter) ForEach

func (iter *TreeIter) ForEach(cb func(*Tree) error) error

ForEach call the cb function for each tree contained on this iter until an error happens or the end of the iter is reached. If ErrStop is sent the iteration is stop but no error is returned. The iterator is closed.

func (*TreeIter) Next

func (iter *TreeIter) Next() (*Tree, error)

Next moves the iterator to the next tree and returns a pointer to it. If there are no more trees, it returns io.EOF.

type TreeWalker

type TreeWalker struct {
	// contains filtered or unexported fields
}

TreeWalker provides a means of walking through all of the entries in a Tree.

func NewTreeWalker

func NewTreeWalker(t *Tree, recursive bool, seen map[plumbing.Hash]bool) *TreeWalker

NewTreeWalker returns a new TreeWalker for the given tree.

It is the caller's responsibility to call Close() when finished with the tree walker.

func (*TreeWalker) Close

func (w *TreeWalker) Close()

Close releases any resources used by the TreeWalker.

func (*TreeWalker) Next

func (w *TreeWalker) Next() (name string, entry TreeEntry, err error)

Next returns the next object from the tree. Objects are returned in order and subtrees are included. After the last object has been returned further calls to Next() will return io.EOF.

In the current implementation any objects which cannot be found in the underlying repository will be skipped automatically. It is possible that this may change in future versions.

func (*TreeWalker) Tree

func (w *TreeWalker) Tree() *Tree

Tree returns the tree that the tree walker most recently operated on.

Directories

Path Synopsis
Package commitgraph provides an interface for efficient traversal over Git commit graph either through the regular object storage, or optionally with the index stored in commit-graph file (Git 2.18+).
Package commitgraph provides an interface for efficient traversal over Git commit graph either through the regular object storage, or optionally with the index stored in commit-graph file (Git 2.18+).

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