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package operations
import (
"bytes"
"context"
"fmt"
"strings"
"gitlab.com/gitlab-org/gitaly/internal/git"
"gitlab.com/gitlab-org/gitaly/internal/git/updateref"
"gitlab.com/gitlab-org/gitaly/internal/gitaly/hook"
"gitlab.com/gitlab-org/gitaly/internal/helper"
"gitlab.com/gitlab-org/gitaly/internal/praefect/metadata"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
)
type preReceiveError struct {
message string
}
func (e preReceiveError) Error() string {
return e.message
}
type updateRefError struct {
reference string
}
func (e updateRefError) Error() string {
return fmt.Sprintf("Could not update %s. Please refresh and try again.", e.reference)
}
func (s *Server) updateReferenceWithHooks(ctx context.Context, repo *gitalypb.Repository, user *gitalypb.User, reference, newrev, oldrev string) error {
transaction, praefect, err := metadata.TransactionMetadataFromContext(ctx)
if err != nil {
return err
}
payload, err := git.NewHooksPayload(s.cfg, repo, transaction, praefect, &git.ReceiveHooksPayload{
UserID: user.GetGlId(),
Username: user.GetGlUsername(),
Protocol: "web",
}).Env()
if err != nil {
return err
}
if reference == "" {
return helper.ErrInternalf("updateReferenceWithHooks: got no reference")
}
if err := git.ValidateCommitID(oldrev); err != nil {
return helper.ErrInternalf("updateReferenceWithHooks: got invalid old value: %w", err)
}
if err := git.ValidateCommitID(newrev); err != nil {
return helper.ErrInternalf("updateReferenceWithHooks: got invalid new value: %w", err)
}
env := []string{
payload,
}
changes := fmt.Sprintf("%s %s %s\n", oldrev, newrev, reference)
var stdout, stderr bytes.Buffer
if s.hookManager == nil {
// See https://gitlab.com/gitlab-org/gitaly/-/merge_requests/2911#note_468836913
panic("The hookManager must be set up already! Did you migrate non-hook-supporting code from Ruby to Go?")
}
if err := s.hookManager.PreReceiveHook(ctx, repo, env, strings.NewReader(changes), &stdout, &stderr); err != nil {
msg := hookErrorFromStdoutAndStderr(stdout.String(), stderr.String())
return preReceiveError{message: msg}
}
if err := s.hookManager.UpdateHook(ctx, repo, reference, oldrev, newrev, env, &stdout, &stderr); err != nil {
msg := hookErrorFromStdoutAndStderr(stdout.String(), stderr.String())
return preReceiveError{message: msg}
}
if err := s.hookManager.ReferenceTransactionHook(ctx, hook.ReferenceTransactionPrepared, env, strings.NewReader(changes)); err != nil {
return preReceiveError{message: err.Error()}
}
updater, err := updateref.New(ctx, repo)
if err != nil {
return err
}
if err := updater.Update(reference, newrev, oldrev); err != nil {
return err
}
if err := updater.Wait(); err != nil {
return updateRefError{reference: reference}
}
if err := s.hookManager.PostReceiveHook(ctx, repo, nil, env, strings.NewReader(changes), &stdout, &stderr); err != nil {
msg := hookErrorFromStdoutAndStderr(stdout.String(), stderr.String())
return preReceiveError{message: msg}
}
return nil
}
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