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
|
package main
import (
"encoding/json"
"errors"
"fmt"
"io/fs"
"os"
"github.com/spf13/cobra"
cli "github.com/lxc/incus/v6/internal/cmd"
"github.com/lxc/incus/v6/shared/simplestreams"
)
type cmdRemove struct {
global *cmdGlobal
flagVerbose bool
}
// Command generates the command definition.
func (c *cmdRemove) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = "remove <fingerprint>"
cmd.Short = "Remove an image"
cmd.Long = cli.FormatSection("Description",
`Remove an image from the server
This command locates the image from its fingerprint and removes it from the index.
`)
cmd.RunE = c.Run
cmd.Flags().BoolVarP(&c.flagVerbose, "verbose", "v", false, "Show all information messages")
return cmd
}
func (c *cmdRemove) remove(path string) error {
if c.flagVerbose {
fmt.Printf("deleting: %s\n", path)
}
err := os.Remove(path)
if err != nil && !errors.Is(err, fs.ErrNotExist) {
return err
}
return nil
}
// Run runs the actual command logic.
func (c *cmdRemove) Run(cmd *cobra.Command, args []string) error {
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 1, 1)
if exit {
return err
}
// Get a simplestreams client.
ss := simplestreams.NewLocalClient("")
// Get the image.
image, err := ss.GetImage(args[0])
if err != nil {
return err
}
// Load the images file.
body, err := os.ReadFile("streams/v1/images.json")
if err != nil {
return err
}
products := simplestreams.Products{}
err = json.Unmarshal(body, &products)
if err != nil {
return err
}
// Delete the image entry.
for kProduct, product := range products.Products {
if product.OperatingSystem != image.Properties["os"] || product.Release != image.Properties["release"] || product.Variant != image.Properties["variant"] || product.Architecture != image.Properties["architecture"] {
continue
}
for kVersion, version := range product.Versions {
// Get the metadata entry.
metaEntry, ok := version.Items["incus.tar.xz"]
if ok {
if metaEntry.CombinedSha256DiskKvmImg == image.Fingerprint {
// Deleting a VM image.
err = c.remove(version.Items["disk-kvm.img"].Path)
if err != nil {
return err
}
delete(version.Items, "disk-kvm.img")
metaEntry.CombinedSha256DiskKvmImg = ""
} else if metaEntry.CombinedSha256SquashFs == image.Fingerprint {
// Deleting a container image.
err = c.remove(version.Items["squashfs"].Path)
if err != nil && !errors.Is(err, fs.ErrNotExist) {
return err
}
delete(version.Items, "squashfs")
metaEntry.CombinedSha256SquashFs = ""
} else {
continue
}
// Update the metadata entry.
version.Items["incus.tar.xz"] = metaEntry
// Delete the version if it's now empty.
if len(version.Items) == 1 {
err = c.remove(metaEntry.Path)
if err != nil {
return err
}
delete(product.Versions, kVersion)
}
}
metaEntry, ok = version.Items["incus_combined.tar.gz"]
if ok {
if metaEntry.HashSha256 == image.Fingerprint {
err = c.remove(metaEntry.Path)
if err != nil {
return err
}
delete(version.Items, "incus_combined.tar.gz")
}
// Delete the version if it's now empty.
if len(version.Items) == 0 {
delete(product.Versions, kVersion)
}
}
}
if len(product.Versions) == 0 {
delete(products.Products, kProduct)
}
break
}
// Write back the images file.
body, err = json.Marshal(&products)
if err != nil {
return err
}
err = os.WriteFile("streams/v1/images.json", body, 0o644)
if err != nil {
return err
}
// Re-generate the index.
err = writeIndex(&products)
if err != nil {
return err
}
return nil
}
|
