1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
package volumes
import (
"context"
"fmt"
"os"
"strings"
"text/tabwriter"
"text/template"
"github.com/containers/common/pkg/completion"
"github.com/containers/common/pkg/report"
"github.com/containers/podman/v3/cmd/podman/common"
"github.com/containers/podman/v3/cmd/podman/parse"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/cmd/podman/validate"
"github.com/containers/podman/v3/libpod/define"
"github.com/containers/podman/v3/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 [options]",
Aliases: []string{"list"},
Args: validate.NoArgs,
Short: "List volumes",
Long: volumeLsDescription,
RunE: list,
ValidArgsFunction: completion.AutocompleteNone,
}
)
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()
filterFlagName := "filter"
flags.StringSliceVarP(&cliOpts.Filter, filterFlagName, "f", []string{}, "Filter volume output")
_ = lsCommand.RegisterFlagCompletionFunc(filterFlagName, common.AutocompleteVolumeFilters)
formatFlagName := "format"
flags.StringVar(&cliOpts.Format, formatFlagName, "{{.Driver}}\t{{.Name}}\n", "Format volume output using Go template")
_ = lsCommand.RegisterFlagCompletionFunc(formatFlagName, common.AutocompleteFormat(define.InspectVolumeData{}))
flags.Bool("noheading", false, "Do not print headers")
flags.BoolVarP(&cliOpts.Quiet, "quiet", "q", false, "Print volume output in quiet mode")
}
func list(cmd *cobra.Command, args []string) error {
if cliOpts.Quiet && cmd.Flag("format").Changed {
return errors.New("quiet and format flags cannot be used together")
}
if len(cliOpts.Filter) > 0 {
lsOpts.Filter = make(map[string][]string)
}
for _, f := range cliOpts.Filter {
filterSplit := strings.SplitN(f, "=", 2)
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
}
switch {
case report.IsJSON(cliOpts.Format):
return outputJSON(responses)
case len(responses) < 1:
return nil
}
return outputTemplate(cmd, responses)
}
func outputTemplate(cmd *cobra.Command, responses []*entities.VolumeListReport) error {
noHeading, _ := cmd.Flags().GetBool("noheading")
headers := report.Headers(entities.VolumeListReport{}, map[string]string{
"Name": "VOLUME NAME",
})
row := report.NormalizeFormat(cliOpts.Format)
if cliOpts.Quiet {
row = "{{.Name}}\n"
}
format := parse.EnforceRange(row)
tmpl, err := template.New("list volume").Parse(format)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 12, 2, 2, ' ', 0)
defer w.Flush()
if !(noHeading || cliOpts.Quiet || cmd.Flag("format").Changed) {
if err := tmpl.Execute(w, headers); err != nil {
return errors.Wrapf(err, "failed to write report column headers")
}
}
return tmpl.Execute(w, responses)
}
func outputJSON(vols []*entities.VolumeListReport) error {
b, err := json.MarshalIndent(vols, "", " ")
if err != nil {
return err
}
fmt.Println(string(b))
return nil
}
|
