Cleanup messages on podman load

If user does not specify file or redirect for stdin, then
throw an error

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

6 files changed, 48 insertions, 51 deletions

diff --git a/README.md b/README.md
index 636a6fa5b..fe78c9d58 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ popularized by Kubernetes.  Libpod also contains the Pod Manager tool `(Podman)`
 
 At a high level, the scope of libpod and podman is the following:
 
-* Support multiple image formats including the existing Docker/OCI image formats.
+* Support multiple image formats including the OCI and Docker image formats.
 * Support for multiple means to download images including trust & image verification.
 * Container image management (managing image layers, overlay filesystems, etc).
 * Full management of container lifecycle
diff --git a/cmd/podman/load.go b/cmd/podman/load.go
index 46add699e..04ff9fcca 100644
--- a/cmd/podman/load.go
+++ b/cmd/podman/load.go
@@ -5,21 +5,24 @@ import (
 	"io"
 	"io/ioutil"
 	"os"
+	"strings"
 
 	"github.com/containers/libpod/cmd/podman/cliconfig"
 	"github.com/containers/libpod/cmd/podman/shared/parse"
 	"github.com/containers/libpod/pkg/adapter"
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
+	"golang.org/x/crypto/ssh/terminal"
 )
 
 var (
 	loadCommand cliconfig.LoadValues
 
-	loadDescription = "Loads the image from docker-archive stored on the local machine."
-	_loadCommand    = &cobra.Command{
-		Use:   "load [flags] [PATH]",
-		Short: "Load an image from docker archive",
+	loadDescription = "Loads an image from a locally stored archive (tar file) into container storage."
+
+	_loadCommand = &cobra.Command{
+		Use:   "load [flags] [NAME[:TAG]]",
+		Short: "Load an image from container archive",
 		Long:  loadDescription,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			loadCommand.InputArgs = args
@@ -60,49 +63,43 @@ func loadCmd(c *cliconfig.LoadValues) error {
 	}
 	defer runtime.Shutdown(false)
 
-	input := c.Input
-	if runtime.Remote && len(input) == 0 {
-		return errors.New("the remote client requires you to load via -i and a tarball")
-	}
-	if len(input) == 0 {
-		input = "/dev/stdin"
-		c.Input = input
-
-		fi, err := os.Stdin.Stat()
-		if err != nil {
+	if len(c.Input) > 0 {
+		if err := parse.ValidateFileName(c.Input); err != nil {
 			return err
 		}
-		// checking if loading from pipe
-		if !fi.Mode().IsRegular() {
-			outFile, err := ioutil.TempFile("/var/tmp", "podman")
-			if err != nil {
-				return errors.Errorf("error creating file %v", err)
-			}
-			defer os.Remove(outFile.Name())
-			defer outFile.Close()
-
-			inFile, err := os.OpenFile(input, 0, 0666)
-			if err != nil {
-				return errors.Errorf("error reading file %v", err)
-			}
-			defer inFile.Close()
-
-			_, err = io.Copy(outFile, inFile)
-			if err != nil {
-				return errors.Errorf("error copying file %v", err)
-			}
+	} else {
+		if terminal.IsTerminal(int(os.Stdin.Fd())) {
+			return errors.Errorf("cannot read from terminal. Use command-line redirection or the --input flag.")
+		}
+		outFile, err := ioutil.TempFile("/var/tmp", "podman")
+		if err != nil {
+			return errors.Errorf("error creating file %v", err)
+		}
+		defer os.Remove(outFile.Name())
+		defer outFile.Close()
 
-			input = outFile.Name()
+		_, err = io.Copy(outFile, os.Stdin)
+		if err != nil {
+			return errors.Errorf("error copying file %v", err)
 		}
-	}
-	if err := parse.ValidateFileName(input); err != nil {
-		return err
+
+		c.Input = outFile.Name()
 	}
 
 	names, err := runtime.LoadImage(getContext(), imageName, c)
 	if err != nil {
 		return err
 	}
+	if len(imageName) > 0 {
+		split := strings.Split(names, ",")
+		newImage, err := runtime.NewImageFromLocal(split[0])
+		if err != nil {
+			return err
+		}
+		if err := newImage.TagImage(imageName); err != nil {
+			return errors.Wrapf(err, "error adding '%s' to image %q", imageName, newImage.InputName)
+		}
+	}
 	fmt.Println("Loaded image(s): " + names)
 	return nil
 }
diff --git a/commands.md b/commands.md
index 6c5fad2f6..31a77c0c4 100644
--- a/commands.md
+++ b/commands.md
@@ -34,7 +34,7 @@
 | [podman-info(1)](/docs/podman-info.1.md)                 | Display system information                                                |[![...](/docs/play.png)](https://asciinema.org/a/yKbi5fQ89y5TJ8e1RfJd4ivTD)|
 | [podman-inspect(1)](/docs/podman-inspect.1.md)           | Display the configuration of a container or image                         |[![...](/docs/play.png)](https://asciinema.org/a/133418)|
 | [podman-kill(1)](/docs/podman-kill.1.md)                 | Kill the main process in one or more running containers                   |[![...](/docs/play.png)](https://asciinema.org/a/3jNos0A5yzO4hChu7ddKkUPw7)|
-| [podman-load(1)](/docs/podman-load.1.md)                 | Load an image from docker archive or oci                                  |[![...](/docs/play.png)](https://asciinema.org/a/kp8kOaexEhEa20P1KLZ3L5X4g)|
+| [podman-load(1)](/docs/podman-load.1.md)                 | Load an image from a container image archive                              |[![...](/docs/play.png)](https://asciinema.org/a/kp8kOaexEhEa20P1KLZ3L5X4g)|
 | [podman-login(1)](/docs/podman-login.1.md)               | Login to a container registry						   |[![...](/docs/play.png)](https://asciinema.org/a/oNiPgmfo1FjV2YdesiLpvihtV)|
 | [podman-logout(1)](/docs/podman-logout.1.md)             | Logout of a container registry                                            |[![...](/docs/play.png)](https://asciinema.org/a/oNiPgmfo1FjV2YdesiLpvihtV)|
 | [podman-logs(1)](/docs/podman-logs.1.md)                 | Display the logs of a container                                           |[![...](/docs/play.png)](https://asciinema.org/a/MZPTWD5CVs3dMREkBxQBY9C5z)|
diff --git a/docs/podman-load.1.md b/docs/podman-load.1.md
index 5363f3f1e..8a1660c63 100644
--- a/docs/podman-load.1.md
+++ b/docs/podman-load.1.md
@@ -1,22 +1,24 @@
 % podman-load(1)
 
 ## NAME
-podman\-load - Load an image from docker archive
+podman\-load - Load an image from a container image archive into container storage
 
 ## SYNOPSIS
-**podman load** [ARCHIVE]
+**podman load** [*name*[:*tag*]]
 
 ## DESCRIPTION
-**podman load** copies an image from either **docker-archive** or **oci-archive** stored
-on the local machine. **podman load** reads from stdin by default or a file if the **input** flag is set.
-The **quiet** flag suppresses the output when set.
+**podman load** loads an image from either an **oci-archive** or **docker-archive** stored on the local machine into container storage. **podman load** reads from stdin by default or a file if the **input** option is set.
+You can also specify a name for the image if the archive does not contain a named reference, of if you want an additonal name for the local image.
+
+The **quiet** option suppresses the progress output when set.
 Note: `:` is a restricted character and cannot be part of the file name.
 
+
 **podman [GLOBAL OPTIONS]**
 
 **podman load [GLOBAL OPTIONS]**
 
-**podman load [OPTIONS] NAME[:TAG|@DIGEST]**
+**podman load [OPTIONS] NAME[:TAG]**
 
 ## OPTIONS
 
@@ -28,7 +30,7 @@ The remote client requires the use of this option.
 
 **--quiet, -q**
 
-Suppress the output
+Suppress the progress output
 
 **--signature-policy="PATHNAME"**
 
@@ -75,7 +77,7 @@ Loaded image:  registry.fedoraproject.org/fedora:latest
 ```
 
 ## SEE ALSO
-podman(1), podman-save(1), crio(8)
+podman(1), podman-save(1), podman-tag(1), crio(8)
 
 ## HISTORY
 July 2017, Originally compiled by Urvashi Mohnani <umohnani@redhat.com>
diff --git a/docs/podman-save.1.md b/docs/podman-save.1.md
index a0b04d633..75aeda797 100644
--- a/docs/podman-save.1.md
+++ b/docs/podman-save.1.md
@@ -1,14 +1,13 @@
 % podman-save(1)
 
 ## NAME
-podman\-save - Save an image to docker-archive or oci-archive
+podman\-save - Save an image to a container archive
 
 ## SYNOPSIS
 **podman save** [*options*] *name*[:*tag*]
 
 ## DESCRIPTION
-**podman save** saves an image to either **docker-archive**, **oci-archive**, **oci-dir** (directory
-with oci manifest type), or **docker-dir** (directory with v2s2 manifest type) on the local machine,
+**podman save** saves an image to either **docker-archive**, **oci-archive**, **oci-dir** (directory with oci manifest type), or **docker-dir** (directory with v2s2 manifest type) on the local machine,
 default is **docker-archive**. **podman save** writes to STDOUT by default and can be redirected to a
 file using the **output** flag. The **quiet** flag suppresses the output when set.
 Note: `:` is a restricted character and cannot be part of the file name.
diff --git a/install.md b/install.md
index 071eeff67..5fe150db2 100644
--- a/install.md
+++ b/install.md
@@ -268,7 +268,6 @@ registries = []
 # If you need to block pull access from a registry, uncomment the section below
 # and add the registries fully-qualified name.
 #
-# Docker only
 [registries.block]
 registries = []
 ```