Bump to Buildah v1.8.2

As the title suggests.

Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>

vendor.conf

@@ -94,7 +94,7 @@ k8s.io/apimachinery kubernetes-1.10.13-beta.0 https://github.com/kubernetes/apim
 k8s.io/client-go kubernetes-1.10.13-beta.0 https://github.com/kubernetes/client-go
 github.com/mrunalp/fileutils 7d4729fb36185a7c1719923406c9d40e54fb93c7
 github.com/varlink/go 64e07fabffa33e385817b41971cf2674f692f391
-github.com/containers/buildah v1.8.1
+github.com/containers/buildah v1.8.2
 # TODO: Gotty has not been updated since 2012. Can we find replacement?
 github.com/Nvveen/Gotty cd527374f1e5bff4938207604a14f2e38a9cf512
 github.com/fsouza/go-dockerclient v1.3.0

vendor/github.com/containers/buildah/buildah.go

@@ -26,7 +26,7 @@ const (
 	Package = "buildah"
 	// Version for the Package.  Bump version in contrib/rpm/buildah.spec
 	// too.
-	Version = "1.8.1"
+	Version = "1.8.2"
 	// The value we use to identify what type of information, currently a
 	// serialized Builder structure, we are using as per-container state.
 	// This should only be changed when we make incompatible changes to

vendor/github.com/containers/buildah/pkg/parse/parse.go

@@ -287,8 +287,8 @@ func SystemContextFromOptions(c *cobra.Command) (*types.SystemContext, error) {
 		ctx.SignaturePolicyPath = sigPolicy
 	}
 	authfile, err := c.Flags().GetString("authfile")
-	if err == nil && c.Flag("authfile").Changed {
-		ctx.AuthFilePath = authfile
+	if err == nil {
+		ctx.AuthFilePath = getAuthFile(authfile)
 	}
 	regConf, err := c.Flags().GetString("registries-conf")
 	if err == nil && c.Flag("registries-conf").Changed {
@@ -302,6 +302,13 @@ func SystemContextFromOptions(c *cobra.Command) (*types.SystemContext, error) {
 	return ctx, nil
 }
 
+func getAuthFile(authfile string) string {
+	if authfile != "" {
+		return authfile
+	}
+	return os.Getenv("REGISTRY_AUTH_FILE")
+}
+
 func parseCreds(creds string) (string, string) {
 	if creds == "" {
 		return "", ""
@@ -576,3 +583,22 @@ func IsolationOption(c *cobra.Command) (buildah.Isolation, error) {
 	}
 	return defaultIsolation()
 }
+
+// ScrubServer removes 'http://' or 'https://' from the front of the
+// server/registry string if either is there.  This will be mostly used
+// for user input from 'buildah login' and 'buildah logout'.
+func ScrubServer(server string) string {
+	server = strings.TrimPrefix(server, "https://")
+	return strings.TrimPrefix(server, "http://")
+}
+
+// RegistryFromFullName gets the registry from the input. If the input is of the form
+// quay.io/myuser/myimage, it will parse it and just return quay.io
+// It also returns true if a full image name was given
+func RegistryFromFullName(input string) string {
+	split := strings.Split(input, "/")
+	if len(split) > 1 {
+		return split[0]
+	}
+	return split[0]
+}

vendor/github.com/containers/buildah/vendor.conf

@@ -8,7 +8,7 @@ github.com/vbauerster/mpb v3.3.4
 github.com/mattn/go-isatty v0.0.4
 github.com/VividCortex/ewma v1.1.1
 github.com/boltdb/bolt v1.3.1
-github.com/containers/storage v1.12.3
+github.com/containers/storage v1.12.6
 github.com/docker/distribution 5f6282db7d65e6d72ad7c2cc66310724a57be716
 github.com/docker/docker 54dddadc7d5d89fe0be88f76979f6f6ab0dede83
 github.com/docker/docker-credential-helpers v0.6.1