forked from canonical/lxd
/
alias.go
229 lines (181 loc) · 4.96 KB
/
alias.go
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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
package main
import (
"fmt"
"sort"
"github.com/spf13/cobra"
"github.com/lxc/lxd/lxc/utils"
cli "github.com/lxc/lxd/shared/cmd"
"github.com/lxc/lxd/shared/i18n"
)
type cmdAlias struct {
global *cmdGlobal
}
func (c *cmdAlias) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("alias")
cmd.Short = i18n.G("Manage command aliases")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Manage command aliases`))
// Add
aliasAddCmd := cmdAliasAdd{global: c.global, alias: c}
cmd.AddCommand(aliasAddCmd.Command())
// List
aliasListCmd := cmdAliasList{global: c.global, alias: c}
cmd.AddCommand(aliasListCmd.Command())
// Rename
aliasRenameCmd := cmdAliasRename{global: c.global, alias: c}
cmd.AddCommand(aliasRenameCmd.Command())
// Remove
aliasRemoveCmd := cmdAliasRemove{global: c.global, alias: c}
cmd.AddCommand(aliasRemoveCmd.Command())
// Workaround for subcommand usage errors. See: https://github.com/spf13/cobra/issues/706
cmd.Args = cobra.NoArgs
cmd.Run = func(cmd *cobra.Command, args []string) { cmd.Usage() }
return cmd
}
// Add
type cmdAliasAdd struct {
global *cmdGlobal
alias *cmdAlias
}
func (c *cmdAliasAdd) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("add", i18n.G("<alias> <target>"))
cmd.Short = i18n.G("Add new aliases")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Add new aliases`))
cmd.Example = cli.FormatSection("", i18n.G(
`lxc alias add list "list -c ns46S"
Overwrite the "list" command to pass -c ns46S.`))
cmd.RunE = c.Run
return cmd
}
func (c *cmdAliasAdd) Run(cmd *cobra.Command, args []string) error {
conf := c.global.conf
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 2, 2)
if exit {
return err
}
// Look for an existing alias
_, ok := conf.Aliases[args[0]]
if ok {
return fmt.Errorf(i18n.G("Alias %s already exists"), args[0])
}
// Add the new alias
conf.Aliases[args[0]] = args[1]
// Save the config
return conf.SaveConfig(c.global.confPath)
}
// List
type cmdAliasList struct {
global *cmdGlobal
alias *cmdAlias
flagFormat string
}
func (c *cmdAliasList) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("list")
cmd.Aliases = []string{"ls"}
cmd.Short = i18n.G("List aliases")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`List aliases`))
cmd.Flags().StringVarP(&c.flagFormat, "format", "f", "table", i18n.G("Format (csv|json|table|yaml)")+"``")
cmd.RunE = c.Run
return cmd
}
func (c *cmdAliasList) Run(cmd *cobra.Command, args []string) error {
conf := c.global.conf
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 0, 0)
if exit {
return err
}
// List the aliases
data := [][]string{}
for k, v := range conf.Aliases {
data = append(data, []string{k, v})
}
sort.Sort(byName(data))
header := []string{
i18n.G("ALIAS"),
i18n.G("TARGET"),
}
return utils.RenderTable(c.flagFormat, header, data, conf.Aliases)
}
// Rename
type cmdAliasRename struct {
global *cmdGlobal
alias *cmdAlias
}
func (c *cmdAliasRename) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("rename", i18n.G("<old alias> <new alias>"))
cmd.Aliases = []string{"mv"}
cmd.Short = i18n.G("Rename aliases")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Rename aliases`))
cmd.Example = cli.FormatSection("", i18n.G(
`lxc alias rename list my-list
Rename existing alias "list" to "my-list".`))
cmd.RunE = c.Run
return cmd
}
func (c *cmdAliasRename) Run(cmd *cobra.Command, args []string) error {
conf := c.global.conf
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 2, 2)
if exit {
return err
}
// Check for the existing alias
target, ok := conf.Aliases[args[0]]
if !ok {
return fmt.Errorf(i18n.G("Alias %s doesn't exist"), args[0])
}
// Check for the new alias
_, ok = conf.Aliases[args[1]]
if ok {
return fmt.Errorf(i18n.G("Alias %s already exists"), args[1])
}
// Rename the alias
conf.Aliases[args[1]] = target
delete(conf.Aliases, args[0])
// Save the config
return conf.SaveConfig(c.global.confPath)
}
// Remove
type cmdAliasRemove struct {
global *cmdGlobal
alias *cmdAlias
}
func (c *cmdAliasRemove) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("remove", i18n.G("<alias>"))
cmd.Aliases = []string{"rm"}
cmd.Short = i18n.G("Remove aliases")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Remove aliases`))
cmd.Example = cli.FormatSection("", i18n.G(
`lxc alias remove my-list
Remove the "my-list" alias.`))
cmd.RunE = c.Run
return cmd
}
func (c *cmdAliasRemove) Run(cmd *cobra.Command, args []string) error {
conf := c.global.conf
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 1, 1)
if exit {
return err
}
// Look for the alias
_, ok := conf.Aliases[args[0]]
if !ok {
return fmt.Errorf(i18n.G("Alias %s doesn't exist"), args[0])
}
// Delete the alias
delete(conf.Aliases, args[0])
// Save the config
return conf.SaveConfig(c.global.confPath)
}