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author | Daniel J Walsh <dwalsh@redhat.com> | 2017-12-15 16:58:36 -0500 |
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committer | Atomic Bot <atomic-devel@projectatomic.io> | 2017-12-18 16:46:05 +0000 |
commit | 5770dc2640c216525ab84031e3712fcc46b3b087 (patch) | |
tree | 8a1c5c4e4a6ce6a35a3767247623a62bfd698f77 /cmd/podman/export.go | |
parent | de3468e120d489d046c08dad72ba2262e222ccb1 (diff) | |
download | podman-5770dc2640c216525ab84031e3712fcc46b3b087.tar.gz podman-5770dc2640c216525ab84031e3712fcc46b3b087.tar.bz2 podman-5770dc2640c216525ab84031e3712fcc46b3b087.zip |
Rename all references to kpod to podman
The decision is in, kpod is going to be named podman.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #145
Approved by: umohnani8
Diffstat (limited to 'cmd/podman/export.go')
-rw-r--r-- | cmd/podman/export.go | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/cmd/podman/export.go b/cmd/podman/export.go new file mode 100644 index 000000000..9b498562e --- /dev/null +++ b/cmd/podman/export.go @@ -0,0 +1,65 @@ +package main + +import ( + "os" + + "github.com/pkg/errors" + "github.com/sirupsen/logrus" + "github.com/urfave/cli" +) + +var ( + exportFlags = []cli.Flag{ + cli.StringFlag{ + Name: "output, o", + Usage: "Write to a file, default is STDOUT", + Value: "/dev/stdout", + }, + } + exportDescription = "Exports container's filesystem contents as a tar archive" + + " and saves it on the local machine." + exportCommand = cli.Command{ + Name: "export", + Usage: "Export container's filesystem contents as a tar archive", + Description: exportDescription, + Flags: exportFlags, + Action: exportCmd, + ArgsUsage: "CONTAINER", + } +) + +// exportCmd saves a container to a tarball on disk +func exportCmd(c *cli.Context) error { + if err := validateFlags(c, exportFlags); err != nil { + return err + } + + runtime, err := getRuntime(c) + if err != nil { + return errors.Wrapf(err, "could not get runtime") + } + defer runtime.Shutdown(false) + + args := c.Args() + if len(args) == 0 { + return errors.Errorf("container id must be specified") + } + if len(args) > 1 { + return errors.Errorf("too many arguments given, need 1 at most.") + } + + output := c.String("output") + if output == "/dev/stdout" { + file := os.Stdout + if logrus.IsTerminal(file) { + return errors.Errorf("refusing to export to terminal. Use -o flag or redirect") + } + } + + ctr, err := runtime.LookupContainer(args[0]) + if err != nil { + return errors.Wrapf(err, "error looking up container %q", args[0]) + } + + return ctr.Export(output) +} |