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package operations
import (
"context"
"errors"
"gitlab.com/gitlab-org/gitaly/v15/internal/git"
"gitlab.com/gitlab-org/gitaly/v15/internal/git/updateref"
"gitlab.com/gitlab-org/gitaly/v15/internal/helper"
"gitlab.com/gitlab-org/gitaly/v15/proto/go/gitalypb"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
//nolint: revive,stylecheck // This is unintentionally missing documentation.
func (s *Server) UserCreateBranch(ctx context.Context, req *gitalypb.UserCreateBranchRequest) (*gitalypb.UserCreateBranchResponse, error) {
if len(req.BranchName) == 0 {
return nil, status.Errorf(codes.InvalidArgument, "Bad Request (empty branch name)")
}
if req.User == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty user")
}
if len(req.StartPoint) == 0 {
return nil, status.Errorf(codes.InvalidArgument, "empty start point")
}
quarantineDir, quarantineRepo, err := s.quarantinedRepo(ctx, req.GetRepository())
if err != nil {
return nil, err
}
// BEGIN TODO: Uncomment if StartPoint started behaving sensibly
// like BranchName. See
// https://gitlab.com/gitlab-org/gitaly/-/issues/3331
//
// startPointReference, err := s.localrepo(req.GetRepository()).GetReference(ctx, "refs/heads/"+string(req.StartPoint))
// startPointCommit, err := log.GetCommit(ctx, req.Repository, startPointReference.Target)
startPointCommit, err := quarantineRepo.ReadCommit(ctx, git.Revision(req.StartPoint))
// END TODO
if err != nil {
return nil, status.Errorf(codes.FailedPrecondition, "revspec '%s' not found", req.StartPoint)
}
startPointOID, err := git.NewObjectIDFromHex(startPointCommit.Id)
if err != nil {
return nil, status.Errorf(codes.Internal, "could not parse start point commit ID: %v", err)
}
referenceName := git.NewReferenceNameFromBranchName(string(req.BranchName))
_, err = quarantineRepo.GetReference(ctx, referenceName)
if err == nil {
return nil, status.Errorf(codes.FailedPrecondition, "Could not update %s. Please refresh and try again.", req.BranchName)
} else if !errors.Is(err, git.ErrReferenceNotFound) {
return nil, status.Error(codes.Internal, err.Error())
}
if err := s.updateReferenceWithHooks(ctx, req.GetRepository(), req.User, quarantineDir, referenceName, startPointOID, git.ZeroOID); err != nil {
var customHookErr updateref.CustomHookError
if errors.As(err, &customHookErr) {
return &gitalypb.UserCreateBranchResponse{
PreReceiveError: customHookErr.Error(),
}, nil
}
var updateRefError updateref.Error
if errors.As(err, &updateRefError) {
return nil, status.Error(codes.FailedPrecondition, err.Error())
}
return nil, err
}
return &gitalypb.UserCreateBranchResponse{
Branch: &gitalypb.Branch{
Name: req.BranchName,
TargetCommit: startPointCommit,
},
}, nil
}
func validateUserUpdateBranchGo(req *gitalypb.UserUpdateBranchRequest) error {
if req.User == nil {
return status.Errorf(codes.InvalidArgument, "empty user")
}
if len(req.BranchName) == 0 {
return status.Errorf(codes.InvalidArgument, "empty branch name")
}
if len(req.Oldrev) == 0 {
return status.Errorf(codes.InvalidArgument, "empty oldrev")
}
if len(req.Newrev) == 0 {
return status.Errorf(codes.InvalidArgument, "empty newrev")
}
return nil
}
//nolint: revive,stylecheck // This is unintentionally missing documentation.
func (s *Server) UserUpdateBranch(ctx context.Context, req *gitalypb.UserUpdateBranchRequest) (*gitalypb.UserUpdateBranchResponse, error) {
// Validate the request
if err := validateUserUpdateBranchGo(req); err != nil {
return nil, err
}
newOID, err := git.NewObjectIDFromHex(string(req.Newrev))
if err != nil {
return nil, status.Errorf(codes.Internal, "could not parse newrev: %v", err)
}
oldOID, err := git.NewObjectIDFromHex(string(req.Oldrev))
if err != nil {
return nil, status.Errorf(codes.Internal, "could not parse oldrev: %v", err)
}
referenceName := git.NewReferenceNameFromBranchName(string(req.BranchName))
quarantineDir, _, err := s.quarantinedRepo(ctx, req.GetRepository())
if err != nil {
return nil, err
}
if err := s.updateReferenceWithHooks(ctx, req.GetRepository(), req.User, quarantineDir, referenceName, newOID, oldOID); err != nil {
var customHookErr updateref.CustomHookError
if errors.As(err, &customHookErr) {
return &gitalypb.UserUpdateBranchResponse{
PreReceiveError: customHookErr.Error(),
}, nil
}
// An oddball response for compatibility with the old
// Ruby code. The "Could not update..." message is
// exactly like the default updateRefError, except we
// say "branch-name", not
// "refs/heads/branch-name". See the
// "Gitlab::Git::CommitError" case in the Ruby code.
return nil, status.Errorf(codes.FailedPrecondition, "Could not update %s. Please refresh and try again.", req.BranchName)
}
return &gitalypb.UserUpdateBranchResponse{}, nil
}
// UserDeleteBranch force-deletes a single branch in the context of a specific user. It executes
// hooks and contacts Rails to verify that the user is indeed allowed to delete that branch.
func (s *Server) UserDeleteBranch(ctx context.Context, req *gitalypb.UserDeleteBranchRequest) (*gitalypb.UserDeleteBranchResponse, error) {
if len(req.BranchName) == 0 {
return nil, helper.ErrInvalidArgumentf("bad request: empty branch name")
}
if req.User == nil {
return nil, helper.ErrInvalidArgumentf("bad request: empty user")
}
referenceName := git.NewReferenceNameFromBranchName(string(req.BranchName))
referenceValue, err := s.localrepo(req.GetRepository()).ResolveRevision(ctx, referenceName.Revision())
if err != nil {
return nil, helper.ErrFailedPreconditionf("branch not found: %q", req.BranchName)
}
if err := s.updateReferenceWithHooks(ctx, req.Repository, req.User, nil, referenceName, git.ZeroOID, referenceValue); err != nil {
var customHookErr updateref.CustomHookError
if errors.As(err, &customHookErr) {
return &gitalypb.UserDeleteBranchResponse{
PreReceiveError: customHookErr.Error(),
}, nil
}
var updateRefError updateref.Error
if errors.As(err, &updateRefError) {
return nil, helper.ErrFailedPrecondition(err)
}
return nil, helper.ErrInternalf("deleting reference: %w", err)
}
return &gitalypb.UserDeleteBranchResponse{}, nil
}
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