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|
package repository
import (
"context"
"gitlab.com/gitlab-org/gitaly-proto/go/gitalypb"
"gitlab.com/gitlab-org/gitaly/internal/helper"
)
// PreFetch is unsafe https://gitlab.com/gitlab-org/gitaly/issues/1552
func (s *server) PreFetch(ctx context.Context, req *gitalypb.PreFetchRequest) (*gitalypb.PreFetchResponse, error) {
return nil, helper.Unimplemented
/*
if err := validatePreFetchRequest(req); err != nil {
return nil, helper.ErrInvalidArgument(err)
}
if err := validatePreFetchPrecondition(req); err != nil {
return nil, helper.ErrPreconditionFailed(err)
}
if err := preFetch(ctx, req); err != nil {
return nil, helper.ErrInternal(err)
}
return &gitalypb.PreFetchResponse{}, nil
*/
}
/*
func validatePreFetchRequest(req *gitalypb.PreFetchRequest) error {
if req.GetTargetRepository() == nil {
return errors.New("repository is empty")
}
if req.GetSourceRepository() == nil {
return errors.New("source repository is empty")
}
if req.GetSourceRepository().GetStorageName() != req.GetTargetRepository().GetStorageName() {
return errors.New("source repository and target repository are not on the same storage")
}
return nil
}
func validatePreFetchPrecondition(req *gitalypb.PreFetchRequest) error {
targetRepositoryFullPath, err := helper.GetPath(req.GetTargetRepository())
if err != nil {
return fmt.Errorf("getting target repository path: %v", err)
}
if _, err := os.Stat(targetRepositoryFullPath); !os.IsNotExist(err) {
return errors.New("target reopsitory already exists")
}
objectPool, err := objectpool.FromProto(req.GetObjectPool())
if err != nil {
return fmt.Errorf("getting object pool from repository: %v", err)
}
if !objectPool.Exists() {
return errors.New("object pool does not exist")
}
if !objectPool.IsValid() {
return errors.New("object pool is not valid")
}
linked, err := objectPool.LinkedToRepository(req.GetSourceRepository())
if err != nil {
return fmt.Errorf("error when testing if source repository is linked to pool repository: %v", err)
}
if !linked {
return errors.New("source repository is not linked to pool repository")
}
return nil
}
func preFetch(ctx context.Context, req *gitalypb.PreFetchRequest) error {
targetRepository, sourceRepository := req.GetTargetRepository(), req.GetSourceRepository()
sourceRepositoryFullPath, err := helper.GetPath(sourceRepository)
if err != nil {
return fmt.Errorf("getting source repository path: %v", err)
}
targetRepositoryFullPath, err := helper.GetPath(targetRepository)
if err != nil {
return fmt.Errorf("getting target repository path: %v", err)
}
targetPath, err := helper.GetPath(targetRepository)
if err != nil {
return fmt.Errorf("getting target repository path: %v", err)
}
dir := filepath.Dir(targetPath)
tmpRepoDir, err := ioutil.TempDir(dir, "repo")
if err != nil {
return fmt.Errorf("creating temp directory for repo: %v", err)
}
defer os.RemoveAll(tmpRepoDir)
storagePath, err := helper.GetStorageByName(targetRepository.GetStorageName())
if err != nil {
return fmt.Errorf("getting storage path for target repo: %v", err)
}
relativePath, err := filepath.Rel(storagePath, tmpRepoDir)
if err != nil {
return fmt.Errorf("getting relative path for temp repo: %v", err)
}
tmpRepo := &gitalypb.Repository{
RelativePath: relativePath,
StorageName: targetRepository.GetStorageName(),
}
args := []string{
"clone",
"--bare",
"--shared",
"--",
sourceRepositoryFullPath,
tmpRepoDir,
}
cmd, err := git.BareCommand(ctx, nil, nil, nil, nil, args...)
if err != nil {
return fmt.Errorf("clone command: %v", err)
}
if err := cmd.Wait(); err != nil {
return fmt.Errorf("clone command: %v", err)
}
objectPool, err := objectpool.FromProto(req.GetObjectPool())
if err != nil {
return fmt.Errorf("getting object pool: %v", err)
}
// As of 11.9, Link will still create remotes in the object pool. In this case the remotes will point to the tempoarary
// directory. This is OK because we don't plan on using these remotes, and will remove them in the future.
if err := objectPool.Link(ctx, tmpRepo); err != nil {
return fmt.Errorf("linking: %v", err)
}
return os.Rename(tmpRepoDir, targetRepositoryFullPath)
}
*/
|
