118 lines
2.3 KiB
Go
118 lines
2.3 KiB
Go
package command
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import (
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"fmt"
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"sort"
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"strings"
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"github.com/hashicorp/nomad/api"
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"github.com/posener/complete"
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)
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type NamespaceListCommand struct {
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Meta
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}
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func (c *NamespaceListCommand) Help() string {
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helpText := `
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Usage: nomad namespace list [options]
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List is used to list available namespaces.
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General Options:
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` + generalOptionsUsage() + `
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List Options:
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-json
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Output the namespaces in a JSON format.
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-t
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Format and display the namespaces using a Go template.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *NamespaceListCommand) AutocompleteFlags() complete.Flags {
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return mergeAutocompleteFlags(c.Meta.AutocompleteFlags(FlagSetClient),
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complete.Flags{
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"-json": complete.PredictNothing,
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"-t": complete.PredictAnything,
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})
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}
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func (c *NamespaceListCommand) AutocompleteArgs() complete.Predictor {
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return complete.PredictNothing
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}
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func (c *NamespaceListCommand) Synopsis() string {
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return "List namespaces"
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}
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func (c *NamespaceListCommand) Run(args []string) int {
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var json bool
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var tmpl string
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flags := c.Meta.FlagSet("namespace list", FlagSetClient)
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flags.Usage = func() { c.Ui.Output(c.Help()) }
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flags.BoolVar(&json, "json", false, "")
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flags.StringVar(&tmpl, "t", "", "")
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if err := flags.Parse(args); err != nil {
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return 1
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}
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// Check that we got no arguments
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args = flags.Args()
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if l := len(args); l != 0 {
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c.Ui.Error(c.Help())
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return 1
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}
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// Get the HTTP client
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client, err := c.Meta.Client()
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
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return 1
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}
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namespaces, _, err := client.Namespaces().List(nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error retrieving namespaces: %s", err))
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return 1
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}
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if json || len(tmpl) > 0 {
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out, err := Format(json, tmpl, namespaces)
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if err != nil {
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c.Ui.Error(err.Error())
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return 1
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}
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c.Ui.Output(out)
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return 0
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}
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c.Ui.Output(formatNamespaces(namespaces))
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return 0
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}
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func formatNamespaces(namespaces []*api.Namespace) string {
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if len(namespaces) == 0 {
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return "No namespaces found"
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}
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// Sort the output by namespace name
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sort.Slice(namespaces, func(i, j int) bool { return namespaces[i].Name < namespaces[j].Name })
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rows := make([]string, len(namespaces)+1)
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rows[0] = "Name|Description"
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for i, ns := range namespaces {
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rows[i+1] = fmt.Sprintf("%s|%s",
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ns.Name,
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ns.Description)
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}
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return formatList(rows)
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}
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