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// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2017 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
//go:build gogit
package git
import (
"context"
"errors"
"path/filepath"
gitealog "code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/go-git/go-billy/v5"
"github.com/go-git/go-billy/v5/osfs"
gogit "github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/cache"
"github.com/go-git/go-git/v5/storage/filesystem"
)
func init() {
isGogit = true
}
// Repository represents a Git repository.
type Repository struct {
Path string
tagCache *ObjectCache
gogitRepo *gogit.Repository
gogitStorage *filesystem.Storage
gpgSettings *GPGSettings
Ctx context.Context
LastCommitCache *LastCommitCache
objectFormat ObjectFormat
}
// openRepositoryWithDefaultContext opens the repository at the given path with DefaultContext.
func openRepositoryWithDefaultContext(repoPath string) (*Repository, error) {
return OpenRepository(DefaultContext, repoPath)
}
// OpenRepository opens the repository at the given path within the context.Context
func OpenRepository(ctx context.Context, repoPath string) (*Repository, error) {
repoPath, err := filepath.Abs(repoPath)
if err != nil {
return nil, err
} else if !isDir(repoPath) {
return nil, errors.New("no such file or directory")
}
fs := osfs.New(repoPath)
_, err = fs.Stat(".git")
if err == nil {
fs, err = fs.Chroot(".git")
if err != nil {
return nil, err
}
}
// the "clone --shared" repo doesn't work well with go-git AlternativeFS, https://github.com/go-git/go-git/issues/1006
// so use "/" for AlternatesFS, I guess it is the same behavior as current nogogit (no limitation or check for the "objects/info/alternates" paths), trust the "clone" command executed by the server.
var altFs billy.Filesystem
if setting.IsWindows {
altFs = osfs.New(filepath.VolumeName(setting.RepoRootPath) + "\\") // TODO: does it really work for Windows? Need some time to check.
} else {
altFs = osfs.New("/")
}
storage := filesystem.NewStorageWithOptions(fs, cache.NewObjectLRUDefault(), filesystem.Options{KeepDescriptors: true, LargeObjectThreshold: setting.Git.LargeObjectThreshold, AlternatesFS: altFs})
gogitRepo, err := gogit.Open(storage, fs)
if err != nil {
return nil, err
}
return &Repository{
Path: repoPath,
gogitRepo: gogitRepo,
gogitStorage: storage,
tagCache: newObjectCache(),
Ctx: ctx,
objectFormat: ParseGogitHash(plumbing.ZeroHash).Type(),
}, nil
}
// Close this repository, in particular close the underlying gogitStorage if this is not nil
func (repo *Repository) Close() (err error) {
if repo == nil || repo.gogitStorage == nil {
return
}
if err := repo.gogitStorage.Close(); err != nil {
gitealog.Error("Error closing storage: %v", err)
}
repo.LastCommitCache = nil
repo.tagCache = nil
return
}
// GoGitRepo gets the go-git repo representation
func (repo *Repository) GoGitRepo() *gogit.Repository {
return repo.gogitRepo
}
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