-
-
Notifications
You must be signed in to change notification settings - Fork 1.6k
/
gproc_shell.go
150 lines (137 loc) · 3.81 KB
/
gproc_shell.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
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
package gproc
import (
"bytes"
"context"
"fmt"
"io"
"runtime"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/propagation"
"github.com/gogf/gf/v2/os/gfile"
"github.com/gogf/gf/v2/text/gstr"
)
// Shell executes command `cmd` synchronously with given input pipe `in` and output pipe `out`.
// The command `cmd` reads the input parameters from input pipe `in`, and writes its output automatically
// to output pipe `out`.
func Shell(ctx context.Context, cmd string, out io.Writer, in io.Reader) error {
p := NewProcess(
getShell(),
append([]string{getShellOption()}, parseCommand(cmd)...),
)
p.Stdin = in
p.Stdout = out
return p.Run(ctx)
}
// ShellRun executes given command `cmd` synchronously and outputs the command result to the stdout.
func ShellRun(ctx context.Context, cmd string) error {
p := NewProcess(
getShell(),
append([]string{getShellOption()}, parseCommand(cmd)...),
)
return p.Run(ctx)
}
// ShellExec executes given command `cmd` synchronously and returns the command result.
func ShellExec(ctx context.Context, cmd string, environment ...[]string) (result string, err error) {
var (
buf = bytes.NewBuffer(nil)
p = NewProcess(
getShell(),
append([]string{getShellOption()}, parseCommand(cmd)...),
environment...,
)
)
p.Stdout = buf
p.Stderr = buf
err = p.Run(ctx)
result = buf.String()
return
}
// parseCommand parses command `cmd` into slice arguments.
//
// Note that it just parses the `cmd` for "cmd.exe" binary in windows, but it is not necessary
// parsing the `cmd` for other systems using "bash"/"sh" binary.
func parseCommand(cmd string) (args []string) {
if runtime.GOOS != "windows" {
return []string{cmd}
}
// Just for "cmd.exe" in windows.
var argStr string
var firstChar, prevChar, lastChar1, lastChar2 byte
array := gstr.SplitAndTrim(cmd, " ")
for _, v := range array {
if len(argStr) > 0 {
argStr += " "
}
firstChar = v[0]
lastChar1 = v[len(v)-1]
lastChar2 = 0
if len(v) > 1 {
lastChar2 = v[len(v)-2]
}
if prevChar == 0 && (firstChar == '"' || firstChar == '\'') {
// It should remove the first quote char.
argStr += v[1:]
prevChar = firstChar
} else if prevChar != 0 && lastChar2 != '\\' && lastChar1 == prevChar {
// It should remove the last quote char.
argStr += v[:len(v)-1]
args = append(args, argStr)
argStr = ""
prevChar = 0
} else if len(argStr) > 0 {
argStr += v
} else {
args = append(args, v)
}
}
return
}
// getShell returns the shell command depending on current working operating system.
// It returns "cmd.exe" for windows, and "bash" or "sh" for others.
func getShell() string {
switch runtime.GOOS {
case "windows":
return SearchBinary("cmd.exe")
default:
// Check the default binary storage path.
if gfile.Exists("/bin/bash") {
return "/bin/bash"
}
if gfile.Exists("/bin/sh") {
return "/bin/sh"
}
// Else search the env PATH.
path := SearchBinary("bash")
if path == "" {
path = SearchBinary("sh")
}
return path
}
}
// getShellOption returns the shell option depending on current working operating system.
// It returns "/c" for windows, and "-c" for others.
func getShellOption() string {
switch runtime.GOOS {
case "windows":
return "/c"
default:
return "-c"
}
}
// tracingEnvFromCtx converts OpenTelemetry propagation data as environment variables.
func tracingEnvFromCtx(ctx context.Context) []string {
var (
a = make([]string, 0)
m = make(map[string]string)
)
otel.GetTextMapPropagator().Inject(ctx, propagation.MapCarrier(m))
for k, v := range m {
a = append(a, fmt.Sprintf(`%s=%s`, k, v))
}
return a
}