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package operations
import (
"context"
"errors"
"fmt"
"strings"
"time"
"gitlab.com/gitlab-org/gitaly/v15/internal/git"
"gitlab.com/gitlab-org/gitaly/v15/internal/git/updateref"
"gitlab.com/gitlab-org/gitaly/v15/internal/git2go"
"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: stylecheck // This is unintentionally missing documentation.
func (s *Server) UserCherryPick(ctx context.Context, req *gitalypb.UserCherryPickRequest) (*gitalypb.UserCherryPickResponse, error) {
if err := validateCherryPickOrRevertRequest(req); err != nil {
return nil, status.Errorf(codes.InvalidArgument, "UserCherryPick: %v", err)
}
quarantineDir, quarantineRepo, err := s.quarantinedRepo(ctx, req.GetRepository())
if err != nil {
return nil, err
}
startRevision, err := s.fetchStartRevision(ctx, quarantineRepo, req)
if err != nil {
return nil, err
}
repoHadBranches, err := quarantineRepo.HasBranches(ctx)
if err != nil {
return nil, err
}
repoPath, err := quarantineRepo.Path()
if err != nil {
return nil, err
}
var mainline uint
if len(req.Commit.ParentIds) > 1 {
mainline = 1
}
committerDate := time.Now()
if req.Timestamp != nil {
committerDate = req.Timestamp.AsTime()
}
newrev, err := s.git2goExecutor.CherryPick(ctx, quarantineRepo, git2go.CherryPickCommand{
Repository: repoPath,
CommitterName: string(req.User.Name),
CommitterMail: string(req.User.Email),
CommitterDate: committerDate,
Message: string(req.Message),
Commit: req.Commit.Id,
Ours: startRevision.String(),
Mainline: mainline,
})
if err != nil {
var conflictErr git2go.ConflictingFilesError
var emptyErr git2go.EmptyError
switch {
case errors.As(err, &conflictErr):
conflictingFiles := make([][]byte, 0, len(conflictErr.ConflictingFiles))
for _, conflictingFile := range conflictErr.ConflictingFiles {
conflictingFiles = append(conflictingFiles, []byte(conflictingFile))
}
detailedErr, errGeneratingDetailedErr := helper.ErrWithDetails(
helper.ErrFailedPreconditionf("cherry pick: %w", err),
&gitalypb.UserCherryPickError{
Error: &gitalypb.UserCherryPickError_CherryPickConflict{
CherryPickConflict: &gitalypb.MergeConflictError{
ConflictingFiles: conflictingFiles,
},
},
},
)
if errGeneratingDetailedErr != nil {
return nil, helper.ErrInternalf("error details: %w", err)
}
return nil, detailedErr
case errors.As(err, &emptyErr):
detailedErr, errGeneratingDetailedErr := helper.ErrWithDetails(
helper.ErrFailedPrecondition(err),
&gitalypb.UserCherryPickError{
Error: &gitalypb.UserCherryPickError_ChangesAlreadyApplied{},
},
)
if errGeneratingDetailedErr != nil {
return nil, helper.ErrInternalf("error details: %w", err)
}
return nil, detailedErr
case errors.Is(err, git2go.ErrInvalidArgument):
return nil, helper.ErrInvalidArgument(err)
default:
return nil, helper.ErrInternalf("cherry-pick command: %w", err)
}
}
referenceName := git.NewReferenceNameFromBranchName(string(req.BranchName))
branchCreated := false
oldrev, err := quarantineRepo.ResolveRevision(ctx, referenceName.Revision()+"^{commit}")
if errors.Is(err, git.ErrReferenceNotFound) {
branchCreated = true
oldrev = git.ObjectHashSHA1.ZeroOID
} else if err != nil {
return nil, helper.ErrInvalidArgumentf("resolve ref: %w", err)
}
if req.DryRun {
newrev = startRevision
}
if !branchCreated {
ancestor, err := quarantineRepo.IsAncestor(ctx, oldrev.Revision(), newrev.Revision())
if err != nil {
return nil, err
}
if !ancestor {
detailedErr, errGeneratingDetailedErr := helper.ErrWithDetails(
helper.ErrFailedPrecondition(errors.New("cherry-pick: branch diverged")),
&gitalypb.UserCherryPickError{
Error: &gitalypb.UserCherryPickError_TargetBranchDiverged{
TargetBranchDiverged: &gitalypb.NotAncestorError{
ParentRevision: []byte(oldrev.Revision()),
ChildRevision: []byte(newrev),
},
},
})
if errGeneratingDetailedErr != nil {
return nil, helper.ErrInternalf("error details: %w", err)
}
return nil, detailedErr
}
}
if err := s.updateReferenceWithHooks(ctx, req.GetRepository(), req.User, quarantineDir, referenceName, newrev, oldrev); err != nil {
var customHookErr updateref.CustomHookError
if errors.As(err, &customHookErr) {
detailedErr, errGeneratingDetailedErr := helper.ErrWithDetails(
helper.ErrFailedPrecondition(errors.New("access check failed")),
&gitalypb.UserCherryPickError{
Error: &gitalypb.UserCherryPickError_AccessCheck{
AccessCheck: &gitalypb.AccessCheckError{
ErrorMessage: strings.TrimSuffix(customHookErr.Error(), "\n"),
},
},
})
if errGeneratingDetailedErr != nil {
return nil, helper.ErrInternalf("error details: %w", err)
}
return nil, detailedErr
}
if errors.As(err, &customHookErr) {
return &gitalypb.UserCherryPickResponse{
PreReceiveError: customHookErr.Error(),
}, nil
}
return nil, fmt.Errorf("update reference with hooks: %w", err)
}
return &gitalypb.UserCherryPickResponse{
BranchUpdate: &gitalypb.OperationBranchUpdate{
CommitId: newrev.String(),
BranchCreated: branchCreated,
RepoCreated: !repoHadBranches,
},
}, nil
}
|
