-
Notifications
You must be signed in to change notification settings - Fork 64
/
set.go
158 lines (132 loc) · 4.62 KB
/
set.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
// SPDX-License-Identifier: BSD-3-Clause
//
// Authors: Cezar Craciunoiu <cezar.craciunoiu@gmail.com>
//
// Copyright (c) 2022, Unikraft GmbH. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package set
import (
"context"
"fmt"
"os"
"strings"
"github.com/MakeNowJust/heredoc"
"github.com/spf13/cobra"
"kraftkit.sh/cmdfactory"
"kraftkit.sh/log"
"kraftkit.sh/packmanager"
"kraftkit.sh/unikraft/app"
)
type SetOptions struct {
Kraftfile string `long:"kraftfile" short:"K" usage:"Set an alternative path of the Kraftfile"`
Workdir string `long:"workdir" short:"w" usage:"Work on a unikernel at a path"`
}
// Set a KConfig variable in a Unikraft project.
func Set(ctx context.Context, opts *SetOptions, args ...string) error {
if opts == nil {
opts = &SetOptions{}
}
return opts.Run(ctx, args)
}
func NewCmd() *cobra.Command {
cmd, err := cmdfactory.New(&SetOptions{}, cobra.Command{
Short: "Set a variable for a Unikraft project",
Hidden: true,
Use: "set [OPTIONS] [param=value ...]",
Aliases: []string{"s"},
Long: heredoc.Doc(`
set a variable for a Unikraft project`),
Example: heredoc.Doc(`
# Set variables in the cwd project
$ kraft set LIBDEVFS_DEV_STDOUT=/dev/null LWIP_TCP_SND_BUF=4096
# Set variables in a project at a path
$ kraft set -w path/to/app LIBDEVFS_DEV_STDOUT=/dev/null LWIP_TCP_SND_BUF=4096`),
Annotations: map[string]string{
cmdfactory.AnnotationHelpGroup: "build",
},
})
if err != nil {
panic(err)
}
return cmd
}
func (*SetOptions) Pre(cmd *cobra.Command, _ []string) error {
ctx, err := packmanager.WithDefaultUmbrellaManagerInContext(cmd.Context())
if err != nil {
return err
}
cmd.SetContext(ctx)
return nil
}
func (opts *SetOptions) Run(ctx context.Context, args []string) error {
var err error
log.G(ctx).Warnf("This command is DEPRECATED and should not be used")
workdir := ""
confOpts := []string{}
// Skip if nothing can be set
if len(args) == 0 {
return fmt.Errorf("no options to set")
}
// Set the working directory (remove the argument if it exists)
if opts.Workdir != "" {
workdir = opts.Workdir
} else {
workdir, err = os.Getwd()
if err != nil {
return err
}
}
// Set the configuration options, skip the first one if needed
for _, arg := range args {
if !strings.ContainsRune(arg, '=') || strings.HasSuffix(arg, "=") {
return fmt.Errorf("invalid or malformed argument: %s", arg)
}
confOpts = append(confOpts, arg)
}
// Check if dotconfig exists in workdir
dotconfig := fmt.Sprintf("%s/.config", workdir)
// Check if the file exists
// TODO: offer option to start in interactive mode
if _, err := os.Stat(dotconfig); os.IsNotExist(err) {
return fmt.Errorf("dotconfig file does not exist: %s", dotconfig)
}
popts := []app.ProjectOption{
app.WithProjectWorkdir(workdir),
app.WithProjectConfig(confOpts),
}
if len(opts.Kraftfile) > 0 {
popts = append(popts, app.WithProjectKraftfile(opts.Kraftfile))
} else {
popts = append(popts, app.WithProjectDefaultKraftfiles())
}
// Initialize at least the configuration options for a project
project, err := app.NewProjectFromOptions(ctx, popts...)
if err != nil {
return err
}
return project.Set(ctx, nil)
}