Add vendor folder to git

vendor/github.com/docker/distribution/version/print.go

@@ -0,0 +1,26 @@
+package version
+
+import (
+	"fmt"
+	"io"
+	"os"
+)
+
+// FprintVersion outputs the version string to the writer, in the following
+// format, followed by a newline:
+//
+// 	<cmd> <project> <version>
+//
+// For example, a binary "registry" built from github.com/docker/distribution
+// with version "v2.0" would print the following:
+//
+// 	registry github.com/docker/distribution v2.0
+//
+func FprintVersion(w io.Writer) {
+	fmt.Fprintln(w, os.Args[0], Package, Version)
+}
+
+// PrintVersion outputs the version information, from Fprint, to stdout.
+func PrintVersion() {
+	FprintVersion(os.Stdout)
+}

vendor/github.com/docker/distribution/version/version.go

@@ -0,0 +1,11 @@
+package version
+
+// Package is the overall, canonical project import path under which the
+// package was built.
+var Package = "github.com/docker/distribution"
+
+// Version indicates which version of the binary is running. This is set to
+// the latest release tag by hand, always suffixed by "+unknown". During
+// build, it will be replaced by the actual version. The value here will be
+// used if the registry is run after a go get based install.
+var Version = "v2.4.0+unknown"

vendor/github.com/docker/distribution/version/version.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+# This bash script outputs the current, desired content of version.go, using
+# git describe. For best effect, pipe this to the target file. Generally, this
+# only needs to updated for releases. The actual value of will be replaced
+# during build time if the makefile is used.
+
+set -e
+
+cat <<EOF
+package version
+
+// Package is the overall, canonical project import path under which the
+// package was built.
+var Package = "$(go list)"
+
+// Version indicates which version of the binary is running. This is set to
+// the latest release tag by hand, always suffixed by "+unknown". During
+// build, it will be replaced by the actual version. The value here will be
+// used if the registry is run after a go get based install.
+var Version = "$(git describe --match 'v[0-9]*' --dirty='.m' --always)+unknown"
+EOF