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package repository
import (
"context"
"errors"
"fmt"
"os"
"gitlab.com/gitlab-org/gitaly/internal/git/objectpool"
"gitlab.com/gitlab-org/gitaly/internal/helper"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
)
func (s *server) CloneFromPool(ctx context.Context, req *gitalypb.CloneFromPoolRequest) (*gitalypb.CloneFromPoolResponse, error) {
if err := validateCloneFromPoolRequestArgs(req); err != nil {
return nil, helper.ErrInvalidArgument(err)
}
if err := s.validateCloneFromPoolRequestRepositoryState(req); err != nil {
return nil, helper.ErrInternal(err)
}
if err := s.cloneFromPool(ctx, req.GetPool(), req.GetRepository()); err != nil {
return nil, helper.ErrInternal(err)
}
if _, err := s.FetchRemote(ctx, &gitalypb.FetchRemoteRequest{
Repository: req.GetRepository(),
RemoteParams: req.GetRemote(),
Timeout: 1000,
}); err != nil {
return nil, helper.ErrInternalf("fetch http remote: %v", err)
}
objectPool, err := objectpool.FromProto(s.cfg, s.locator, s.gitCmdFactory, req.GetPool())
if err != nil {
return nil, helper.ErrInternalf("get object pool from request: %v", err)
}
if err = objectPool.Link(ctx, req.GetRepository()); err != nil {
return nil, helper.ErrInternalf("change hard link to relative: %v", err)
}
return &gitalypb.CloneFromPoolResponse{}, nil
}
func (s *server) validateCloneFromPoolRequestRepositoryState(req *gitalypb.CloneFromPoolRequest) error {
targetRepositoryFullPath, err := s.locator.GetPath(req.GetRepository())
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(s.cfg, s.locator, s.gitCmdFactory, req.GetPool())
if err != nil {
return fmt.Errorf("getting object pool from repository: %v", err)
}
if !objectPool.IsValid() {
return errors.New("object pool is not valid")
}
return nil
}
func validateCloneFromPoolRequestArgs(req *gitalypb.CloneFromPoolRequest) error {
if req.GetRepository() == nil {
return errors.New("repository required")
}
if req.GetRemote() == nil {
return errors.New("remote required")
}
if req.GetPool() == nil {
return errors.New("pool is empty")
}
return nil
}
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