mirror of https://github.com/docker/cli.git
29 lines
806 B
Go
29 lines
806 B
Go
package wclayer
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/Microsoft/hcsshim/internal/hcserror"
|
|
"github.com/Microsoft/hcsshim/internal/oc"
|
|
"go.opencensus.io/trace"
|
|
)
|
|
|
|
// LayerExists will return true if a layer with the given id exists and is known
|
|
// to the system.
|
|
func LayerExists(ctx context.Context, path string) (_ bool, err error) {
|
|
title := "hcsshim::LayerExists"
|
|
ctx, span := trace.StartSpan(ctx, title)
|
|
defer span.End()
|
|
defer func() { oc.SetSpanStatus(span, err) }()
|
|
span.AddAttributes(trace.StringAttribute("path", path))
|
|
|
|
// Call the procedure itself.
|
|
var exists uint32
|
|
err = layerExists(&stdDriverInfo, path, &exists)
|
|
if err != nil {
|
|
return false, hcserror.New(err, title+" - failed", "")
|
|
}
|
|
span.AddAttributes(trace.BoolAttribute("layer-exists", exists != 0))
|
|
return exists != 0, nil
|
|
}
|