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package repository
import (
"context"
"fmt"
"github.com/prometheus/client_golang/prometheus"
"gitlab.com/gitlab-org/gitaly-proto/go/gitalypb"
"gitlab.com/gitlab-org/gitaly/internal/featureflag"
"gitlab.com/gitlab-org/gitaly/internal/git"
"gitlab.com/gitlab-org/gitaly/internal/git/repository"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
const deltaIslandsFeatureFlag = "delta-islands"
var (
repackCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "gitaly_repack_total",
Help: "Counter of Git repack operations",
},
[]string{"bitmap", "delta_islands"},
)
)
func init() {
prometheus.Register(repackCounter)
}
func (server) RepackFull(ctx context.Context, in *gitalypb.RepackFullRequest) (*gitalypb.RepackFullResponse, error) {
if err := repackCommand(ctx, in.GetRepository(), in.GetCreateBitmap(), "-A", "--pack-kept-objects", "-l"); err != nil {
return nil, err
}
return &gitalypb.RepackFullResponse{}, nil
}
func (server) RepackIncremental(ctx context.Context, in *gitalypb.RepackIncrementalRequest) (*gitalypb.RepackIncrementalResponse, error) {
if err := repackCommand(ctx, in.GetRepository(), false); err != nil {
return nil, err
}
return &gitalypb.RepackIncrementalResponse{}, nil
}
func repackCommand(ctx context.Context, repo repository.GitRepo, bitmap bool, args ...string) error {
cmdArgs := repackConfig(ctx, bitmap)
cmdArgs = append(cmdArgs, "repack", "-d")
cmdArgs = append(cmdArgs, args...)
cmd, err := git.Command(ctx, repo, cmdArgs...)
if err != nil {
if _, ok := status.FromError(err); ok {
return err
}
return status.Errorf(codes.Internal, err.Error())
}
if err := cmd.Wait(); err != nil {
return status.Errorf(codes.Internal, err.Error())
}
return nil
}
func repackConfig(ctx context.Context, bitmap bool) []string {
var args []string
if bitmap {
args = append(args, "-c", "repack.writeBitmaps=true")
} else {
args = append(args, "-c", "repack.writeBitmaps=false")
}
deltaIslands := featureflag.IsEnabled(ctx, deltaIslandsFeatureFlag)
if deltaIslands {
args = append(args,
"-c", "pack.island=refs/heads",
"-c", "pack.island=refs/tags",
"-c", "repack.useDeltaIslands=true",
)
}
repackCounter.WithLabelValues(fmt.Sprint(bitmap), fmt.Sprint(deltaIslands)).Inc()
return args
}
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