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
|
package ssh
import (
"fmt"
"github.com/viant/toolbox"
"io/ioutil"
"os"
"path"
"sort"
"strings"
)
//ReplayCommand represent a replay command
type ReplayCommand struct {
Stdin string
Index int
Stdout []string
Error string
}
//replayCommands represnets command grouped by stdin
type ReplayCommands struct {
Commands map[string]*ReplayCommand
Keys []string
BaseDir string
}
//Register register stdin and corresponding stdout conversation
func (c *ReplayCommands) Register(stdin, stdout string) {
if _, has := c.Commands[stdin]; !has {
c.Commands[stdin] = &ReplayCommand{
Stdin: stdin,
Stdout: make([]string, 0),
}
c.Keys = append(c.Keys, stdin)
}
c.Commands[stdin].Stdout = append(c.Commands[stdin].Stdout, stdout)
}
//return stdout pointed by index and increases index or empty string if exhausted
func (c *ReplayCommands) Next(stdin string) string {
var stdout = c.Commands[stdin].Stdout
var index = c.Commands[stdin].Index
if index < len(stdout) {
c.Commands[stdin].Index++
return stdout[index]
}
return ""
}
func (c *ReplayCommands) Enable(source interface{}) (err error) {
switch value := source.(type) {
case *service:
value.replayCommands = c
value.recordSession = true
case *multiCommandSession:
value.replayCommands = c
value.recordSession = true
default:
err = fmt.Errorf("unsupported type: %T", source)
}
return err
}
func (c *ReplayCommands) Disable(source interface{}) (err error) {
switch value := source.(type) {
case *service:
value.replayCommands = nil
value.recordSession = false
case *multiCommandSession:
value.replayCommands = nil
value.recordSession = false
default:
err = fmt.Errorf("unsupported type: %T", source)
}
return err
}
//Store stores replay command in the base directory
func (c *ReplayCommands) Store() error {
err := toolbox.CreateDirIfNotExist(c.BaseDir)
if err != nil {
return err
}
for i, key := range c.Keys {
var command = c.Commands[key]
var filenamePrefix = path.Join(c.BaseDir, fmt.Sprintf("%03d", i+1))
var stdinFilename = filenamePrefix + "_000.stdin"
err := ioutil.WriteFile(stdinFilename, []byte(command.Stdin), 0644)
if err != nil {
return err
}
for j, stdout := range command.Stdout {
var stdoutFilename = fmt.Sprintf("%v_%03d.stdout", filenamePrefix, j+1)
err := ioutil.WriteFile(stdoutFilename, []byte(stdout), 0644)
if err != nil {
return err
}
}
}
return nil
}
//Load loads replay command from base directory
func (c *ReplayCommands) Load() error {
parent, err := os.Open(c.BaseDir)
if err != nil {
return err
}
files, err := parent.Readdir(1000)
if err != nil {
return err
}
var stdinMap = make(map[string]string)
var stdoutMap = make(map[string]string)
for _, candidate := range files {
ext := path.Ext(candidate.Name())
var contentMap map[string]string
if ext == ".stdin" {
contentMap = stdinMap
} else if ext == ".stdout" {
contentMap = stdoutMap
} else {
continue
}
var filename = path.Join(c.BaseDir, candidate.Name())
content, err := ioutil.ReadFile(filename)
if err != nil {
return nil
}
contentMap[candidate.Name()] = string(content)
}
for key, stdin := range stdinMap {
var prefix = key[:len(key)-10]
var candidateKeys = toolbox.MapKeysToStringSlice(stdoutMap)
sort.Strings(candidateKeys)
for _, candidateKey := range candidateKeys {
if strings.HasPrefix(candidateKey, prefix) {
stdout := stdoutMap[candidateKey]
c.Register(stdin, stdout)
}
}
}
return nil
}
//Shell returns command shell
func (c *ReplayCommands) Shell() string {
for _, candidate := range c.Commands {
if strings.HasPrefix(candidate.Stdin, "PS1=") && len(candidate.Stdout) > 0 {
return candidate.Stdout[0]
}
}
return ""
}
//System returns system name
func (c *ReplayCommands) System() string {
for _, candidate := range c.Commands {
if strings.HasPrefix(candidate.Stdin, "uname -s") && len(candidate.Stdout) > 0 {
return strings.ToLower(candidate.Stdout[0])
}
}
return ""
}
//NewReplayCommands create a new replay commands or error if provided basedir does not exists and can not be created
func NewReplayCommands(basedir string) (*ReplayCommands, error) {
if !toolbox.FileExists(basedir) {
err := os.MkdirAll(basedir, 0744)
if err != nil {
return nil, err
}
}
return &ReplayCommands{
Commands: make(map[string]*ReplayCommand),
Keys: make([]string, 0),
BaseDir: basedir,
}, nil
}
|
