-
Notifications
You must be signed in to change notification settings - Fork 62
/
probe.go
162 lines (134 loc) · 4.3 KB
/
probe.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
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) 2023, Unikraft GmbH and The KraftKit Authors.
// Licensed under the BSD-3-Clause License (the "License").
// You may not use this file expect in compliance with the License.
package probe
import (
"context"
"fmt"
"github.com/MakeNowJust/heredoc"
"github.com/spf13/cobra"
"kraftkit.sh/cmdfactory"
"kraftkit.sh/internal/cli/kraft/cloud/utils"
"kraftkit.sh/internal/tableprinter"
"kraftkit.sh/iostreams"
"kraftkit.sh/log"
"kraftkit.sh/packmanager"
"kraftkit.sh/unikraft/app"
)
type Probe struct {
Config string `long:"config" short:"c" usage:"Set path to generate .config file to"`
Kraftfile string `long:"kraftfile" short:"K" usage:"Set path to generate Kraftfile to"`
Output string `long:"output" short:"o" usage:"Set output format. Options: table,yaml,json,list" default:"table"`
}
func NewCmd() *cobra.Command {
cmd, err := cmdfactory.New(&Probe{}, cobra.Command{
Short: "Read Unikraft and library metadata from an ELF binary",
Use: "probe [FLAGS] path/to/unikernel",
Args: cobra.ExactArgs(1),
Example: heredoc.Doc(`
# Output metadata for a Unikraft unikernel
$ kraft x probe path/to/unikernel
# Output the raw metadata from the elf
$ kraft x probe -r path/to/unikernel
# Output metadata for a Unikraft unikernel and save the Kraftfile and .config
$ kraft x probe -K path/to/Kraftfile -c path/to/.config helloworld_qemu-x86_64`),
Annotations: map[string]string{
cmdfactory.AnnotationHelpGroup: "experimental",
},
})
if err != nil {
panic(err)
}
return cmd
}
func (opts *Probe) Pre(cmd *cobra.Command, _ []string) error {
ctx, err := packmanager.WithDefaultUmbrellaManagerInContext(cmd.Context())
if err != nil {
return err
}
if !utils.IsValidOutputFormat(opts.Output) {
return fmt.Errorf("invalid output format: %s", opts.Output)
}
cmd.SetContext(ctx)
return nil
}
func (opts *Probe) Run(ctx context.Context, args []string) error {
kernel := args[0]
app, err := app.NewApplicationFromKernel(ctx, kernel, opts.Config, opts.Kraftfile)
if err != nil {
return err
}
if opts.Kraftfile != "" {
if err = app.Save(ctx); err != nil {
return err
}
}
err = iostreams.G(ctx).StartPager()
if err != nil {
log.G(ctx).Errorf("error starting pager: %v", err)
}
defer iostreams.G(ctx).StopPager()
cs := iostreams.G(ctx).ColorScheme()
table, err := tableprinter.NewTablePrinter(ctx,
tableprinter.WithMaxWidth(iostreams.G(ctx).TerminalWidth()),
tableprinter.WithOutputFormatFromString(opts.Output))
if err != nil {
return err
}
table.AddField("CORE", cs.Bold)
table.AddField("VERSION", cs.Bold)
table.AddField("LICENSE", cs.Bold)
table.AddField("COMPILER", cs.Bold)
table.AddField("COMPILE DATE", cs.Bold)
table.AddField("COMPILED BY", cs.Bold)
table.AddField("COMPILED BY ASSOC", cs.Bold)
table.EndRow()
table.AddField("Unikraft", nil)
table.AddField(app.Unikraft(ctx).Version(), nil)
table.AddField(app.Unikraft(ctx).License(), nil)
table.AddField(app.Unikraft(ctx).Compiler(), nil)
table.AddField(app.Unikraft(ctx).CompileDate(), nil)
table.AddField(app.Unikraft(ctx).CompiledBy(), nil)
table.AddField(app.Unikraft(ctx).CompiledByAssoc(), nil)
table.EndRow()
err = table.Render(iostreams.G(ctx).Out)
if err != nil {
return err
}
table, err = tableprinter.NewTablePrinter(ctx,
tableprinter.WithMaxWidth(iostreams.G(ctx).TerminalWidth()),
tableprinter.WithOutputFormatFromString(opts.Output))
if err != nil {
return err
}
table.AddField("LIBRARY", cs.Bold)
table.AddField("VERSION", cs.Bold)
table.AddField("LICENSE", cs.Bold)
table.AddField("COMPILER", cs.Bold)
table.AddField("COMPILE DATE", cs.Bold)
table.AddField("COMPILED BY", cs.Bold)
table.AddField("COMPILED BY ASSOC", cs.Bold)
table.AddField("COMPILE FLAGS", cs.Bold)
table.EndRow()
libs, err := app.Libraries(ctx)
if err != nil {
return err
}
for _, lib := range libs {
table.AddField(lib.Name(), nil)
table.AddField(lib.Version(), nil)
table.AddField(lib.License(), nil)
table.AddField(lib.Compiler(), nil)
table.AddField(lib.CompileDate(), nil)
table.AddField(lib.CompiledBy(), nil)
table.AddField(lib.CompiledByAssoc(), nil)
cFlags := ""
for _, flag := range lib.CFlags() {
cFlags += flag.Value + " "
}
table.AddField(cFlags, nil)
table.EndRow()
}
return table.Render(iostreams.G(ctx).Out)
}