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package connection
import (
"fmt"
"os"
"sort"
"github.com/containers/common/pkg/completion"
"github.com/containers/common/pkg/config"
"github.com/containers/common/pkg/report"
"github.com/containers/podman/v3/cmd/podman/common"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/cmd/podman/system"
"github.com/containers/podman/v3/cmd/podman/validate"
"github.com/spf13/cobra"
)
var (
listCmd = &cobra.Command{
Use: "list [options]",
Aliases: []string{"ls"},
Args: validate.NoArgs,
Short: "List destination for the Podman service(s)",
Long: `List destination information for the Podman service(s) in podman configuration`,
Example: `podman system connection list
podman system connection ls
podman system connection ls --format=json`,
ValidArgsFunction: completion.AutocompleteNone,
RunE: list,
TraverseChildren: false,
}
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Command: listCmd,
Parent: system.ConnectionCmd,
})
listCmd.Flags().String("format", "", "Custom Go template for printing connections")
_ = listCmd.RegisterFlagCompletionFunc("format", common.AutocompleteFormat(namedDestination{}))
}
type namedDestination struct {
Name string
config.Destination
Default bool
}
func list(cmd *cobra.Command, _ []string) error {
cfg, err := config.ReadCustomConfig()
if err != nil {
return err
}
hdrs := []map[string]string{{
"Identity": "Identity",
"Name": "Name",
"URI": "URI",
"Default": "Default",
}}
rows := make([]namedDestination, 0)
for k, v := range cfg.Engine.ServiceDestinations {
def := false
if k == cfg.Engine.ActiveService {
def = true
}
r := namedDestination{
Name: k,
Destination: config.Destination{
Identity: v.Identity,
URI: v.URI,
},
Default: def,
}
rows = append(rows, r)
}
sort.Slice(rows, func(i, j int) bool {
return rows[i].Name < rows[j].Name
})
var format string
switch {
case report.IsJSON(cmd.Flag("format").Value.String()):
buf, err := registry.JSONLibrary().MarshalIndent(rows, "", " ")
if err == nil {
fmt.Println(string(buf))
}
return err
case cmd.Flags().Changed("format"):
format = report.NormalizeFormat(cmd.Flag("format").Value.String())
default:
format = "{{.Name}}\t{{.URI}}\t{{.Identity}}\t{{.Default}}\n"
}
format = report.EnforceRange(format)
tmpl, err := report.NewTemplate("list").Parse(format)
if err != nil {
return err
}
w, err := report.NewWriterDefault(os.Stdout)
if err != nil {
return err
}
defer w.Flush()
isTable := report.HasTable(cmd.Flag("format").Value.String())
if !cmd.Flag("format").Changed || isTable {
_ = tmpl.Execute(w, hdrs)
}
return tmpl.Execute(w, rows)
}
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