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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
package images
import (
"context"
"fmt"
"os"
"strings"
"text/tabwriter"
"text/template"
"time"
"unicode"
"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/pkg/domain/entities"
"github.com/docker/go-units"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
long = `Displays the history of an image.
The information can be printed out in an easy to read, or user specified format, and can be truncated.`
// podman _history_
historyCmd = &cobra.Command{
Use: "history [options] IMAGE",
Short: "Show history of a specified image",
Long: long,
Args: cobra.ExactArgs(1),
RunE: history,
ValidArgsFunction: common.AutocompleteImages,
Example: "podman history quay.io/fedora/fedora",
}
imageHistoryCmd = &cobra.Command{
Args: historyCmd.Args,
Use: historyCmd.Use,
Short: historyCmd.Short,
Long: historyCmd.Long,
ValidArgsFunction: historyCmd.ValidArgsFunction,
RunE: historyCmd.RunE,
Example: `podman image history quay.io/fedora/fedora`,
}
opts = struct {
human bool
noTrunc bool
quiet bool
format string
}{}
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: historyCmd,
})
historyFlags(historyCmd)
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: imageHistoryCmd,
Parent: imageCmd,
})
historyFlags(imageHistoryCmd)
}
func historyFlags(cmd *cobra.Command) {
flags := cmd.Flags()
formatFlagName := "format"
flags.StringVar(&opts.format, formatFlagName, "", "Change the output to JSON or a Go template")
_ = cmd.RegisterFlagCompletionFunc(formatFlagName, common.AutocompleteJSONFormat)
flags.BoolVarP(&opts.human, "human", "H", true, "Display sizes and dates in human readable format")
flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Do not truncate the output")
flags.BoolVar(&opts.noTrunc, "notruncate", false, "Do not truncate the output")
flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Display the numeric IDs only")
}
func history(cmd *cobra.Command, args []string) error {
results, err := registry.ImageEngine().History(context.Background(), args[0], entities.ImageHistoryOptions{})
if err != nil {
return err
}
if report.IsJSON(opts.format) {
var err error
if len(results.Layers) == 0 {
_, err = fmt.Fprintf(os.Stdout, "[]\n")
} else {
// ah-hoc change to "Created": type and format
type layer struct {
entities.ImageHistoryLayer
Created string `json:"Created"`
}
layers := make([]layer, len(results.Layers))
for i, l := range results.Layers {
layers[i].ImageHistoryLayer = l
layers[i].Created = l.Created.Format(time.RFC3339)
}
enc := json.NewEncoder(os.Stdout)
err = enc.Encode(layers)
}
return err
}
hr := make([]historyReporter, 0, len(results.Layers))
for _, l := range results.Layers {
hr = append(hr, historyReporter{l})
}
hdrs := report.Headers(historyReporter{}, map[string]string{
"CreatedBy": "CREATED BY",
})
// Defaults
row := "{{.ID}}\t{{.Created}}\t{{.CreatedBy}}\t{{.Size}}\t{{.Comment}}\n"
switch {
case cmd.Flags().Changed("format"):
row = report.NormalizeFormat(opts.format)
case opts.quiet:
row = "{{.ID}}\n"
}
format := parse.EnforceRange(row)
tmpl, err := template.New("report").Parse(format)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
defer w.Flush()
if !opts.quiet && !cmd.Flags().Changed("format") {
if err := tmpl.Execute(w, hdrs); err != nil {
return errors.Wrapf(err, "failed to write report column headers")
}
}
return tmpl.Execute(w, hr)
}
type historyReporter struct {
entities.ImageHistoryLayer
}
func (h historyReporter) Created() string {
if opts.human {
return units.HumanDuration(time.Since(h.ImageHistoryLayer.Created)) + " ago"
}
return h.ImageHistoryLayer.Created.Format(time.RFC3339)
}
func (h historyReporter) Size() string {
s := units.HumanSizeWithPrecision(float64(h.ImageHistoryLayer.Size), 3)
i := strings.LastIndexFunc(s, unicode.IsNumber)
return s[:i+1] + " " + s[i+1:]
}
func (h historyReporter) CreatedBy() string {
if !opts.noTrunc && len(h.ImageHistoryLayer.CreatedBy) > 45 {
return h.ImageHistoryLayer.CreatedBy[:45-3] + "..."
}
return h.ImageHistoryLayer.CreatedBy
}
func (h historyReporter) ID() string {
if !opts.noTrunc && len(h.ImageHistoryLayer.ID) >= 12 {
return h.ImageHistoryLayer.ID[0:12]
}
return h.ImageHistoryLayer.ID
}
|
