"math/rand"
	"os"
	"path/filepath"
	"strconv"
	"strings"
	"sync"

	"cmd/go/internal/base"
	"cmd/go/internal/cfg"
	"cmd/go/internal/gover"
	"cmd/go/internal/lockedfile"
	"cmd/go/internal/modfetch/codehost"
	"cmd/go/internal/par"
	"cmd/go/internal/robustio"
	"cmd/internal/telemetry"

	"golang.org/x/mod/module"
	"golang.org/x/mod/semver"
)

func cacheDir(ctx context.Context, path string) (string, error) {