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repository.go
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repository.go
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package git
import (
"bytes"
"context"
"crypto"
"encoding/hex"
"errors"
"fmt"
"io"
"os"
"path"
"path/filepath"
"strings"
"time"
"dario.cat/mergo"
"github.com/ProtonMail/go-crypto/openpgp"
"github.com/go-git/go-billy/v5"
"github.com/go-git/go-billy/v5/osfs"
"github.com/go-git/go-billy/v5/util"
"github.com/go-git/go-git/v5/config"
"github.com/go-git/go-git/v5/internal/path_util"
"github.com/go-git/go-git/v5/internal/revision"
"github.com/go-git/go-git/v5/internal/url"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/cache"
formatcfg "github.com/go-git/go-git/v5/plumbing/format/config"
"github.com/go-git/go-git/v5/plumbing/format/packfile"
"github.com/go-git/go-git/v5/plumbing/hash"
"github.com/go-git/go-git/v5/plumbing/object"
"github.com/go-git/go-git/v5/plumbing/storer"
"github.com/go-git/go-git/v5/storage"
"github.com/go-git/go-git/v5/storage/filesystem"
"github.com/go-git/go-git/v5/storage/filesystem/dotgit"
"github.com/go-git/go-git/v5/utils/ioutil"
)
// GitDirName this is a special folder where all the git stuff is.
const GitDirName = ".git"
var (
// ErrBranchExists an error stating the specified branch already exists
ErrBranchExists = errors.New("branch already exists")
// ErrBranchNotFound an error stating the specified branch does not exist
ErrBranchNotFound = errors.New("branch not found")
// ErrTagExists an error stating the specified tag already exists
ErrTagExists = errors.New("tag already exists")
// ErrTagNotFound an error stating the specified tag does not exist
ErrTagNotFound = errors.New("tag not found")
// ErrFetching is returned when the packfile could not be downloaded
ErrFetching = errors.New("unable to fetch packfile")
ErrInvalidReference = errors.New("invalid reference, should be a tag or a branch")
ErrRepositoryNotExists = errors.New("repository does not exist")
ErrRepositoryIncomplete = errors.New("repository's commondir path does not exist")
ErrRepositoryAlreadyExists = errors.New("repository already exists")
ErrRemoteNotFound = errors.New("remote not found")
ErrRemoteExists = errors.New("remote already exists")
ErrAnonymousRemoteName = errors.New("anonymous remote name must be 'anonymous'")
ErrWorktreeNotProvided = errors.New("worktree should be provided")
ErrIsBareRepository = errors.New("worktree not available in a bare repository")
ErrUnableToResolveCommit = errors.New("unable to resolve commit")
ErrPackedObjectsNotSupported = errors.New("packed objects not supported")
ErrSHA256NotSupported = errors.New("go-git was not compiled with SHA256 support")
ErrAlternatePathNotSupported = errors.New("alternate path must use the file scheme")
)
// Repository represents a git repository
type Repository struct {
Storer storage.Storer
r map[string]*Remote
wt billy.Filesystem
}
type InitOptions struct {
// The default branch (e.g. "refs/heads/master")
DefaultBranch plumbing.ReferenceName
}
// Init creates an empty git repository, based on the given Storer and worktree.
// The worktree Filesystem is optional, if nil a bare repository is created. If
// the given storer is not empty ErrRepositoryAlreadyExists is returned
func Init(s storage.Storer, worktree billy.Filesystem) (*Repository, error) {
options := InitOptions{
DefaultBranch: plumbing.Master,
}
return InitWithOptions(s, worktree, options)
}
func InitWithOptions(s storage.Storer, worktree billy.Filesystem, options InitOptions) (*Repository, error) {
if err := initStorer(s); err != nil {
return nil, err
}
if options.DefaultBranch == "" {
options.DefaultBranch = plumbing.Master
}
if err := options.DefaultBranch.Validate(); err != nil {
return nil, err
}
r := newRepository(s, worktree)
_, err := r.Reference(plumbing.HEAD, false)
switch err {
case plumbing.ErrReferenceNotFound:
case nil:
return nil, ErrRepositoryAlreadyExists
default:
return nil, err
}
h := plumbing.NewSymbolicReference(plumbing.HEAD, options.DefaultBranch)
if err := s.SetReference(h); err != nil {
return nil, err
}
if worktree == nil {
_ = r.setIsBare(true)
return r, nil
}
return r, setWorktreeAndStoragePaths(r, worktree)
}
func initStorer(s storer.Storer) error {
i, ok := s.(storer.Initializer)
if !ok {
return nil
}
return i.Init()
}
func setWorktreeAndStoragePaths(r *Repository, worktree billy.Filesystem) error {
type fsBased interface {
Filesystem() billy.Filesystem
}
// .git file is only created if the storage is file based and the file
// system is osfs.OS
fs, isFSBased := r.Storer.(fsBased)
if !isFSBased {
return nil
}
if err := createDotGitFile(worktree, fs.Filesystem()); err != nil {
return err
}
return setConfigWorktree(r, worktree, fs.Filesystem())
}
func createDotGitFile(worktree, storage billy.Filesystem) error {
path, err := filepath.Rel(worktree.Root(), storage.Root())
if err != nil {
path = storage.Root()
}
if path == GitDirName {
// not needed, since the folder is the default place
return nil
}
f, err := worktree.Create(GitDirName)
if err != nil {
return err
}
defer f.Close()
_, err = fmt.Fprintf(f, "gitdir: %s\n", path)
return err
}
func setConfigWorktree(r *Repository, worktree, storage billy.Filesystem) error {
path, err := filepath.Rel(storage.Root(), worktree.Root())
if err != nil {
path = worktree.Root()
}
if path == ".." {
// not needed, since the folder is the default place
return nil
}
cfg, err := r.Config()
if err != nil {
return err
}
cfg.Core.Worktree = path
return r.Storer.SetConfig(cfg)
}
// Open opens a git repository using the given Storer and worktree filesystem,
// if the given storer is complete empty ErrRepositoryNotExists is returned.
// The worktree can be nil when the repository being opened is bare, if the
// repository is a normal one (not bare) and worktree is nil the err
// ErrWorktreeNotProvided is returned
func Open(s storage.Storer, worktree billy.Filesystem) (*Repository, error) {
_, err := s.Reference(plumbing.HEAD)
if err == plumbing.ErrReferenceNotFound {
return nil, ErrRepositoryNotExists
}
if err != nil {
return nil, err
}
return newRepository(s, worktree), nil
}
// Clone a repository into the given Storer and worktree Filesystem with the
// given options, if worktree is nil a bare repository is created. If the given
// storer is not empty ErrRepositoryAlreadyExists is returned.
func Clone(s storage.Storer, worktree billy.Filesystem, o *CloneOptions) (*Repository, error) {
return CloneContext(context.Background(), s, worktree, o)
}
// CloneContext a repository into the given Storer and worktree Filesystem with
// the given options, if worktree is nil a bare repository is created. If the
// given storer is not empty ErrRepositoryAlreadyExists is returned.
//
// The provided Context must be non-nil. If the context expires before the
// operation is complete, an error is returned. The context only affects the
// transport operations.
func CloneContext(
ctx context.Context, s storage.Storer, worktree billy.Filesystem, o *CloneOptions,
) (*Repository, error) {
r, err := Init(s, worktree)
if err != nil {
return nil, err
}
return r, r.clone(ctx, o)
}
// PlainInit create an empty git repository at the given path. isBare defines
// if the repository will have worktree (non-bare) or not (bare), if the path
// is not empty ErrRepositoryAlreadyExists is returned.
func PlainInit(path string, isBare bool) (*Repository, error) {
return PlainInitWithOptions(path, &PlainInitOptions{
Bare: isBare,
})
}
func PlainInitWithOptions(path string, opts *PlainInitOptions) (*Repository, error) {
if opts == nil {
opts = &PlainInitOptions{}
}
var wt, dot billy.Filesystem
if opts.Bare {
dot = osfs.New(path)
} else {
wt = osfs.New(path)
dot, _ = wt.Chroot(GitDirName)
}
s := filesystem.NewStorage(dot, cache.NewObjectLRUDefault())
r, err := InitWithOptions(s, wt, opts.InitOptions)
if err != nil {
return nil, err
}
cfg, err := r.Config()
if err != nil {
return nil, err
}
if opts.ObjectFormat != "" {
if opts.ObjectFormat == formatcfg.SHA256 && hash.CryptoType != crypto.SHA256 {
return nil, ErrSHA256NotSupported
}
cfg.Core.RepositoryFormatVersion = formatcfg.Version_1
cfg.Extensions.ObjectFormat = opts.ObjectFormat
}
err = r.Storer.SetConfig(cfg)
if err != nil {
return nil, err
}
return r, err
}
// PlainOpen opens a git repository from the given path. It detects if the
// repository is bare or a normal one. If the path doesn't contain a valid
// repository ErrRepositoryNotExists is returned
func PlainOpen(path string) (*Repository, error) {
return PlainOpenWithOptions(path, &PlainOpenOptions{})
}
// PlainOpenWithOptions opens a git repository from the given path with specific
// options. See PlainOpen for more info.
func PlainOpenWithOptions(path string, o *PlainOpenOptions) (*Repository, error) {
dot, wt, err := dotGitToOSFilesystems(path, o.DetectDotGit)
if err != nil {
return nil, err
}
if _, err := dot.Stat(""); err != nil {
if os.IsNotExist(err) {
return nil, ErrRepositoryNotExists
}
return nil, err
}
var repositoryFs billy.Filesystem
if o.EnableDotGitCommonDir {
dotGitCommon, err := dotGitCommonDirectory(dot)
if err != nil {
return nil, err
}
repositoryFs = dotgit.NewRepositoryFilesystem(dot, dotGitCommon)
} else {
repositoryFs = dot
}
s := filesystem.NewStorage(repositoryFs, cache.NewObjectLRUDefault())
return Open(s, wt)
}
func dotGitToOSFilesystems(path string, detect bool) (dot, wt billy.Filesystem, err error) {
path, err = path_util.ReplaceTildeWithHome(path)
if err != nil {
return nil, nil, err
}
if path, err = filepath.Abs(path); err != nil {
return nil, nil, err
}
var fs billy.Filesystem
var fi os.FileInfo
for {
fs = osfs.New(path)
pathinfo, err := fs.Stat("/")
if !os.IsNotExist(err) {
if pathinfo == nil {
return nil, nil, err
}
if !pathinfo.IsDir() && detect {
fs = osfs.New(filepath.Dir(path))
}
}
fi, err = fs.Stat(GitDirName)
if err == nil {
// no error; stop
break
}
if !os.IsNotExist(err) {
// unknown error; stop
return nil, nil, err
}
if detect {
// try its parent as long as we haven't reached
// the root dir
if dir := filepath.Dir(path); dir != path {
path = dir
continue
}
}
// not detecting via parent dirs and the dir does not exist;
// stop
return fs, nil, nil
}
if fi.IsDir() {
dot, err = fs.Chroot(GitDirName)
return dot, fs, err
}
dot, err = dotGitFileToOSFilesystem(path, fs)
if err != nil {
return nil, nil, err
}
return dot, fs, nil
}
func dotGitFileToOSFilesystem(path string, fs billy.Filesystem) (bfs billy.Filesystem, err error) {
f, err := fs.Open(GitDirName)
if err != nil {
return nil, err
}
defer ioutil.CheckClose(f, &err)
b, err := io.ReadAll(f)
if err != nil {
return nil, err
}
line := string(b)
const prefix = "gitdir: "
if !strings.HasPrefix(line, prefix) {
return nil, fmt.Errorf(".git file has no %s prefix", prefix)
}
gitdir := strings.Split(line[len(prefix):], "\n")[0]
gitdir = strings.TrimSpace(gitdir)
if filepath.IsAbs(gitdir) {
return osfs.New(gitdir), nil
}
return osfs.New(fs.Join(path, gitdir)), nil
}
func dotGitCommonDirectory(fs billy.Filesystem) (commonDir billy.Filesystem, err error) {
f, err := fs.Open("commondir")
if os.IsNotExist(err) {
return nil, nil
}
if err != nil {
return nil, err
}
b, err := io.ReadAll(f)
if err != nil {
return nil, err
}
if len(b) > 0 {
path := strings.TrimSpace(string(b))
if filepath.IsAbs(path) {
commonDir = osfs.New(path)
} else {
commonDir = osfs.New(filepath.Join(fs.Root(), path))
}
if _, err := commonDir.Stat(""); err != nil {
if os.IsNotExist(err) {
return nil, ErrRepositoryIncomplete
}
return nil, err
}
}
return commonDir, nil
}
// PlainClone a repository into the path with the given options, isBare defines
// if the new repository will be bare or normal. If the path is not empty
// ErrRepositoryAlreadyExists is returned.
//
// TODO(mcuadros): move isBare to CloneOptions in v5
func PlainClone(path string, isBare bool, o *CloneOptions) (*Repository, error) {
return PlainCloneContext(context.Background(), path, isBare, o)
}
// PlainCloneContext a repository into the path with the given options, isBare
// defines if the new repository will be bare or normal. If the path is not empty
// ErrRepositoryAlreadyExists is returned.
//
// The provided Context must be non-nil. If the context expires before the
// operation is complete, an error is returned. The context only affects the
// transport operations.
//
// TODO(mcuadros): move isBare to CloneOptions in v5
// TODO(smola): refuse upfront to clone on a non-empty directory in v5, see #1027
func PlainCloneContext(ctx context.Context, path string, isBare bool, o *CloneOptions) (*Repository, error) {
cleanup, cleanupParent, err := checkIfCleanupIsNeeded(path)
if err != nil {
return nil, err
}
if o.Mirror {
isBare = true
}
r, err := PlainInit(path, isBare)
if err != nil {
return nil, err
}
err = r.clone(ctx, o)
if err != nil && err != ErrRepositoryAlreadyExists {
if cleanup {
_ = cleanUpDir(path, cleanupParent)
}
}
return r, err
}
func newRepository(s storage.Storer, worktree billy.Filesystem) *Repository {
return &Repository{
Storer: s,
wt: worktree,
r: make(map[string]*Remote),
}
}
func checkIfCleanupIsNeeded(path string) (cleanup bool, cleanParent bool, err error) {
fi, err := osfs.Default.Stat(path)
if err != nil {
if os.IsNotExist(err) {
return true, true, nil
}
return false, false, err
}
if !fi.IsDir() {
return false, false, fmt.Errorf("path is not a directory: %s", path)
}
files, err := osfs.Default.ReadDir(path)
if err != nil {
return false, false, err
}
if len(files) == 0 {
return true, false, nil
}
return false, false, nil
}
func cleanUpDir(path string, all bool) error {
if all {
return util.RemoveAll(osfs.Default, path)
}
files, err := osfs.Default.ReadDir(path)
if err != nil {
return err
}
for _, fi := range files {
if err := util.RemoveAll(osfs.Default, osfs.Default.Join(path, fi.Name())); err != nil {
return err
}
}
return err
}
// Config return the repository config. In a filesystem backed repository this
// means read the `.git/config`.
func (r *Repository) Config() (*config.Config, error) {
return r.Storer.Config()
}
// SetConfig marshall and writes the repository config. In a filesystem backed
// repository this means write the `.git/config`. This function should be called
// with the result of `Repository.Config` and never with the output of
// `Repository.ConfigScoped`.
func (r *Repository) SetConfig(cfg *config.Config) error {
return r.Storer.SetConfig(cfg)
}
// ConfigScoped returns the repository config, merged with requested scope and
// lower. For example if, config.GlobalScope is given the local and global config
// are returned merged in one config value.
func (r *Repository) ConfigScoped(scope config.Scope) (*config.Config, error) {
// TODO(mcuadros): v6, add this as ConfigOptions.Scoped
var err error
system := config.NewConfig()
if scope >= config.SystemScope {
system, err = config.LoadConfig(config.SystemScope)
if err != nil {
return nil, err
}
}
global := config.NewConfig()
if scope >= config.GlobalScope {
global, err = config.LoadConfig(config.GlobalScope)
if err != nil {
return nil, err
}
}
local, err := r.Storer.Config()
if err != nil {
return nil, err
}
_ = mergo.Merge(global, system)
_ = mergo.Merge(local, global)
return local, nil
}
// Remote return a remote if exists
func (r *Repository) Remote(name string) (*Remote, error) {
cfg, err := r.Config()
if err != nil {
return nil, err
}
c, ok := cfg.Remotes[name]
if !ok {
return nil, ErrRemoteNotFound
}
return NewRemote(r.Storer, c), nil
}
// Remotes returns a list with all the remotes
func (r *Repository) Remotes() ([]*Remote, error) {
cfg, err := r.Config()
if err != nil {
return nil, err
}
remotes := make([]*Remote, len(cfg.Remotes))
var i int
for _, c := range cfg.Remotes {
remotes[i] = NewRemote(r.Storer, c)
i++
}
return remotes, nil
}
// CreateRemote creates a new remote
func (r *Repository) CreateRemote(c *config.RemoteConfig) (*Remote, error) {
if err := c.Validate(); err != nil {
return nil, err
}
remote := NewRemote(r.Storer, c)
cfg, err := r.Config()
if err != nil {
return nil, err
}
if _, ok := cfg.Remotes[c.Name]; ok {
return nil, ErrRemoteExists
}
cfg.Remotes[c.Name] = c
return remote, r.Storer.SetConfig(cfg)
}
// CreateRemoteAnonymous creates a new anonymous remote. c.Name must be "anonymous".
// It's used like 'git fetch git@github.com:src-d/go-git.git master:master'.
func (r *Repository) CreateRemoteAnonymous(c *config.RemoteConfig) (*Remote, error) {
if err := c.Validate(); err != nil {
return nil, err
}
if c.Name != "anonymous" {
return nil, ErrAnonymousRemoteName
}
remote := NewRemote(r.Storer, c)
return remote, nil
}
// DeleteRemote delete a remote from the repository and delete the config
func (r *Repository) DeleteRemote(name string) error {
cfg, err := r.Config()
if err != nil {
return err
}
if _, ok := cfg.Remotes[name]; !ok {
return ErrRemoteNotFound
}
delete(cfg.Remotes, name)
return r.Storer.SetConfig(cfg)
}
// Branch return a Branch if exists
func (r *Repository) Branch(name string) (*config.Branch, error) {
cfg, err := r.Config()
if err != nil {
return nil, err
}
b, ok := cfg.Branches[name]
if !ok {
return nil, ErrBranchNotFound
}
return b, nil
}
// CreateBranch creates a new Branch
func (r *Repository) CreateBranch(c *config.Branch) error {
if err := c.Validate(); err != nil {
return err
}
cfg, err := r.Config()
if err != nil {
return err
}
if _, ok := cfg.Branches[c.Name]; ok {
return ErrBranchExists
}
cfg.Branches[c.Name] = c
return r.Storer.SetConfig(cfg)
}
// DeleteBranch delete a Branch from the repository and delete the config
func (r *Repository) DeleteBranch(name string) error {
cfg, err := r.Config()
if err != nil {
return err
}
if _, ok := cfg.Branches[name]; !ok {
return ErrBranchNotFound
}
delete(cfg.Branches, name)
return r.Storer.SetConfig(cfg)
}
// CreateTag creates a tag. If opts is included, the tag is an annotated tag,
// otherwise a lightweight tag is created.
func (r *Repository) CreateTag(name string, hash plumbing.Hash, opts *CreateTagOptions) (*plumbing.Reference, error) {
rname := plumbing.NewTagReferenceName(name)
if err := rname.Validate(); err != nil {
return nil, err
}
_, err := r.Storer.Reference(rname)
switch err {
case nil:
// Tag exists, this is an error
return nil, ErrTagExists
case plumbing.ErrReferenceNotFound:
// Tag missing, available for creation, pass this
default:
// Some other error
return nil, err
}
var target plumbing.Hash
if opts != nil {
target, err = r.createTagObject(name, hash, opts)
if err != nil {
return nil, err
}
} else {
target = hash
}
ref := plumbing.NewHashReference(rname, target)
if err = r.Storer.SetReference(ref); err != nil {
return nil, err
}
return ref, nil
}
func (r *Repository) createTagObject(name string, hash plumbing.Hash, opts *CreateTagOptions) (plumbing.Hash, error) {
if err := opts.Validate(r, hash); err != nil {
return plumbing.ZeroHash, err
}
rawobj, err := object.GetObject(r.Storer, hash)
if err != nil {
return plumbing.ZeroHash, err
}
tag := &object.Tag{
Name: name,
Tagger: *opts.Tagger,
Message: opts.Message,
TargetType: rawobj.Type(),
Target: hash,
}
if opts.SignKey != nil {
sig, err := r.buildTagSignature(tag, opts.SignKey)
if err != nil {
return plumbing.ZeroHash, err
}
tag.PGPSignature = sig
}
obj := r.Storer.NewEncodedObject()
if err := tag.Encode(obj); err != nil {
return plumbing.ZeroHash, err
}
return r.Storer.SetEncodedObject(obj)
}
func (r *Repository) buildTagSignature(tag *object.Tag, signKey *openpgp.Entity) (string, error) {
encoded := &plumbing.MemoryObject{}
if err := tag.Encode(encoded); err != nil {
return "", err
}
rdr, err := encoded.Reader()
if err != nil {
return "", err
}
var b bytes.Buffer
if err := openpgp.ArmoredDetachSign(&b, signKey, rdr, nil); err != nil {
return "", err
}
return b.String(), nil
}
// Tag returns a tag from the repository.
//
// If you want to check to see if the tag is an annotated tag, you can call
// TagObject on the hash of the reference in ForEach:
//
// ref, err := r.Tag("v0.1.0")
// if err != nil {
// // Handle error
// }
//
// obj, err := r.TagObject(ref.Hash())
// switch err {
// case nil:
// // Tag object present
// case plumbing.ErrObjectNotFound:
// // Not a tag object
// default:
// // Some other error
// }
func (r *Repository) Tag(name string) (*plumbing.Reference, error) {
ref, err := r.Reference(plumbing.ReferenceName(path.Join("refs", "tags", name)), false)
if err != nil {
if err == plumbing.ErrReferenceNotFound {
// Return a friendly error for this one, versus just ReferenceNotFound.
return nil, ErrTagNotFound
}
return nil, err
}
return ref, nil
}
// DeleteTag deletes a tag from the repository.
func (r *Repository) DeleteTag(name string) error {
_, err := r.Tag(name)
if err != nil {
return err
}
return r.Storer.RemoveReference(plumbing.ReferenceName(path.Join("refs", "tags", name)))
}
func (r *Repository) resolveToCommitHash(h plumbing.Hash) (plumbing.Hash, error) {
obj, err := r.Storer.EncodedObject(plumbing.AnyObject, h)
if err != nil {
return plumbing.ZeroHash, err
}
switch obj.Type() {
case plumbing.TagObject:
t, err := object.DecodeTag(r.Storer, obj)
if err != nil {
return plumbing.ZeroHash, err
}
return r.resolveToCommitHash(t.Target)
case plumbing.CommitObject:
return h, nil
default:
return plumbing.ZeroHash, ErrUnableToResolveCommit
}
}
// Clone clones a remote repository
func (r *Repository) clone(ctx context.Context, o *CloneOptions) error {
if err := o.Validate(); err != nil {
return err
}
c := &config.RemoteConfig{
Name: o.RemoteName,
URLs: []string{o.URL},
Fetch: r.cloneRefSpec(o),
Mirror: o.Mirror,
}
if _, err := r.CreateRemote(c); err != nil {
return err
}
// When the repository to clone is on the local machine,
// instead of using hard links, automatically setup .git/objects/info/alternates
// to share the objects with the source repository
if o.Shared {
if !url.IsLocalEndpoint(o.URL) {
return ErrAlternatePathNotSupported
}
altpath := o.URL
remoteRepo, err := PlainOpen(o.URL)
if err != nil {
return fmt.Errorf("failed to open remote repository: %w", err)
}
conf, err := remoteRepo.Config()
if err != nil {
return fmt.Errorf("failed to read remote repository configuration: %w", err)
}
if !conf.Core.IsBare {
altpath = path.Join(altpath, GitDirName)
}
if err := r.Storer.AddAlternate(altpath); err != nil {
return fmt.Errorf("failed to add alternate file to git objects dir: %w", err)
}
}
ref, err := r.fetchAndUpdateReferences(ctx, &FetchOptions{
RefSpecs: c.Fetch,
Depth: o.Depth,
Auth: o.Auth,
Progress: o.Progress,
Tags: o.Tags,
RemoteName: o.RemoteName,
InsecureSkipTLS: o.InsecureSkipTLS,
CABundle: o.CABundle,
ProxyOptions: o.ProxyOptions,
}, o.ReferenceName)
if err != nil {
return err
}
if r.wt != nil && !o.NoCheckout {
w, err := r.Worktree()
if err != nil {
return err
}
head, err := r.Head()
if err != nil {
return err
}
if err := w.Reset(&ResetOptions{
Mode: MergeReset,
Commit: head.Hash(),
}); err != nil {
return err
}
if o.RecurseSubmodules != NoRecurseSubmodules {
if err := w.updateSubmodules(&SubmoduleUpdateOptions{
RecurseSubmodules: o.RecurseSubmodules,
Depth: func() int {
if o.ShallowSubmodules {
return 1
}
return 0
}(),
Auth: o.Auth,
}); err != nil {
return err
}
}
}
if err := r.updateRemoteConfigIfNeeded(o, c, ref); err != nil {
return err
}
if !o.Mirror && ref.Name().IsBranch() {
branchRef := ref.Name()
branchName := strings.Split(string(branchRef), "refs/heads/")[1]
b := &config.Branch{
Name: branchName,
Merge: branchRef,
}
if o.RemoteName == "" {
b.Remote = "origin"
} else {
b.Remote = o.RemoteName
}
if err := r.CreateBranch(b); err != nil {
return err
}
}
return nil
}
const (
refspecTag = "+refs/tags/%s:refs/tags/%[1]s"