registry.Registry -> registry.Session

renaming this struct to more clearly be session, as that is what it
handles.

Splitting out files for easier readability.

Signed-off-by: Vincent Batts <vbatts@redhat.com>

docs/httpfactory.go

@@ -0,0 +1,46 @@
+package registry
+
+import (
+	"runtime"
+
+	"github.com/docker/docker/dockerversion"
+	"github.com/docker/docker/pkg/parsers/kernel"
+	"github.com/docker/docker/utils"
+)
+
+func HTTPRequestFactory(metaHeaders map[string][]string) *utils.HTTPRequestFactory {
+	// FIXME: this replicates the 'info' job.
+	httpVersion := make([]utils.VersionInfo, 0, 4)
+	httpVersion = append(httpVersion, &simpleVersionInfo{"docker", dockerversion.VERSION})
+	httpVersion = append(httpVersion, &simpleVersionInfo{"go", runtime.Version()})
+	httpVersion = append(httpVersion, &simpleVersionInfo{"git-commit", dockerversion.GITCOMMIT})
+	if kernelVersion, err := kernel.GetKernelVersion(); err == nil {
+		httpVersion = append(httpVersion, &simpleVersionInfo{"kernel", kernelVersion.String()})
+	}
+	httpVersion = append(httpVersion, &simpleVersionInfo{"os", runtime.GOOS})
+	httpVersion = append(httpVersion, &simpleVersionInfo{"arch", runtime.GOARCH})
+	ud := utils.NewHTTPUserAgentDecorator(httpVersion...)
+	md := &utils.HTTPMetaHeadersDecorator{
+		Headers: metaHeaders,
+	}
+	factory := utils.NewHTTPRequestFactory(ud, md)
+	return factory
+}
+
+// simpleVersionInfo is a simple implementation of
+// the interface VersionInfo, which is used
+// to provide version information for some product,
+// component, etc. It stores the product name and the version
+// in string and returns them on calls to Name() and Version().
+type simpleVersionInfo struct {
+	name    string
+	version string
+}
+
+func (v *simpleVersionInfo) Name() string {
+	return v.name
+}
+
+func (v *simpleVersionInfo) Version() string {
+	return v.version
+}