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authorBrent Baude <bbaude@redhat.com>2020-03-21 14:29:30 -0500
committerBrent Baude <bbaude@redhat.com>2020-03-24 16:03:49 -0500
commitae614920bfe2510ca6d1dd6cea02bbe17ddb245c (patch)
tree5edd6e5fd01f12154c82146ce6170aaf7d716e19 /cmd/podmanV2/volumes/list.go
parent0c084d9719772a9b68d5eb67114cf5bf001958b2 (diff)
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podmanv2 volumes
add volume commands: create, inspect, ls, prune, and rm Signed-off-by: Brent Baude <bbaude@redhat.com>
Diffstat (limited to 'cmd/podmanV2/volumes/list.go')
-rw-r--r--cmd/podmanV2/volumes/list.go98
1 files changed, 98 insertions, 0 deletions
diff --git a/cmd/podmanV2/volumes/list.go b/cmd/podmanV2/volumes/list.go
new file mode 100644
index 000000000..c38f78c73
--- /dev/null
+++ b/cmd/podmanV2/volumes/list.go
@@ -0,0 +1,98 @@
+package volumes
+
+import (
+ "context"
+ "html/template"
+ "io"
+ "os"
+ "strings"
+ "text/tabwriter"
+
+ "github.com/containers/libpod/cmd/podmanV2/registry"
+ "github.com/containers/libpod/pkg/domain/entities"
+ "github.com/pkg/errors"
+ "github.com/spf13/cobra"
+)
+
+var (
+ volumeLsDescription = `
+podman volume ls
+
+List all available volumes. The output of the volumes can be filtered
+and the output format can be changed to JSON or a user specified Go template.`
+ lsCommand = &cobra.Command{
+ Use: "ls",
+ Aliases: []string{"list"},
+ Args: cobra.NoArgs,
+ Short: "List volumes",
+ Long: volumeLsDescription,
+ RunE: list,
+ }
+)
+
+var (
+ // Temporary struct to hold cli values.
+ cliOpts = struct {
+ Filter []string
+ Format string
+ Quiet bool
+ }{}
+ lsOpts = entities.VolumeListOptions{}
+)
+
+func init() {
+ registry.Commands = append(registry.Commands, registry.CliCommand{
+ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+ Command: lsCommand,
+ Parent: volumeCmd,
+ })
+ flags := lsCommand.Flags()
+ flags.StringSliceVarP(&cliOpts.Filter, "filter", "f", []string{}, "Filter volume output")
+ flags.StringVar(&cliOpts.Format, "format", "{{.Driver}}\t{{.Name}}\n", "Format volume output using Go template")
+ flags.BoolVarP(&cliOpts.Quiet, "quiet", "q", false, "Print volume output in quiet mode")
+}
+
+func list(cmd *cobra.Command, args []string) error {
+ var w io.Writer = os.Stdout
+ if cliOpts.Quiet && cmd.Flag("format").Changed {
+ return errors.New("quiet and format flags cannot be used together")
+ }
+ for _, f := range cliOpts.Filter {
+ filterSplit := strings.Split(f, "=")
+ if len(filterSplit) < 2 {
+ return errors.Errorf("filter input must be in the form of filter=value: %s is invalid", f)
+ }
+ lsOpts.Filter[filterSplit[0]] = append(lsOpts.Filter[filterSplit[0]], filterSplit[1:]...)
+ }
+ responses, err := registry.ContainerEngine().VolumeList(context.Background(), lsOpts)
+ if err != nil {
+ return err
+ }
+ // "\t" from the command line is not being recognized as a tab
+ // replacing the string "\t" to a tab character if the user passes in "\t"
+ cliOpts.Format = strings.Replace(cliOpts.Format, `\t`, "\t", -1)
+ if cliOpts.Quiet {
+ cliOpts.Format = "{{.Name}}\n"
+ }
+ headers := "DRIVER\tVOLUME NAME\n"
+ row := cliOpts.Format
+ if !strings.HasSuffix(cliOpts.Format, "\n") {
+ row += "\n"
+ }
+ format := "{{range . }}" + row + "{{end}}"
+ if !cliOpts.Quiet && !cmd.Flag("format").Changed {
+ w = tabwriter.NewWriter(os.Stdout, 12, 2, 2, ' ', 0)
+ format = headers + format
+ }
+ tmpl, err := template.New("listVolume").Parse(format)
+ if err != nil {
+ return err
+ }
+ if err := tmpl.Execute(w, responses); err != nil {
+ return err
+ }
+ if flusher, ok := w.(interface{ Flush() error }); ok {
+ return flusher.Flush()
+ }
+ return nil
+}