/
exec.go
135 lines (109 loc) · 2.62 KB
/
exec.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
package runner
import (
"fmt"
"os"
osexec "os/exec"
"time"
"github.com/gobs/args"
"github.com/pkg/errors"
)
type exec struct {
base
cmd string
exec *osexec.Cmd
redirect *os.File
}
func (r *exec) Run() {
r.Lock()
defer r.Unlock()
// Reset previous state
r.err = nil
//
start := time.Now()
logger := r.log.WithField("prefix", r.ctx.Name()).WithField("id", GenerateID())
logger.Info(r.cmd)
if r.redirect != nil {
defer r.redirect.Sync()
}
if r.ctx.LogsFile() != nil {
defer r.ctx.LogsFile().Sync()
}
err := r.buildCommand()
if err != nil {
r.err = err
logger.WithField("elapsed_time", time.Since(start)).WithField("ignored", r.ignoreError).Error(err)
return
}
if err := r.exec.Run(); err != nil {
r.err = err
logger.WithField("elapsed_time", time.Since(start)).WithField("ignored", r.ignoreError).Error(err)
return
}
logger.WithField("elapsed_time", time.Since(start)).Info("finished")
}
func (r *exec) buildCommand() error {
args := args.GetArgs(r.cmd)
bin, err := osexec.LookPath(args[0])
if err != nil {
return err
}
r.exec = &osexec.Cmd{
Path: bin,
Args: args,
Stdout: os.Stdout,
Stderr: os.Stderr,
Dir: r.ctx.Workdir(),
}
for k, v := range r.ctx.Environment() {
r.exec.Env = append(r.exec.Env, fmt.Sprintf("%s=%s", k, v))
}
if r.ctx.LogsFile() != nil {
r.exec.Stdout = r.ctx.LogsFile()
r.exec.Stderr = r.ctx.LogsFile()
}
if r.redirect != nil {
r.exec.Stdout = r.redirect
r.exec.Stderr = r.redirect
}
return nil
}
func init() {
Register("exec", func(ctx Context, payload map[string]interface{}) (Runner, error) {
_, ok := payload["exec"]
if !ok {
return nil, errors.New("taskfile: exec: missing command value")
}
executor := &exec{
base: base{
ctx: ctx,
},
}
executor.cmd, ok = payload["exec"].(string)
if !ok {
return nil, errors.New("taskfile: exec: command must be a string")
}
executor.cmd = executor.ctx.ExpandAll(executor.cmd)
// Ignore error
if v, ok := payload["ignore_error"]; ok {
b, ok := v.(bool)
if !ok {
return nil, errors.New("taskfile: exec: ignore_error field must be a boolean")
}
executor.ignoreError = b
}
// Redirect command stdout/stderr to a file
if v, ok := payload["redirect"]; ok {
path, ok := v.(string)
if !ok {
return nil, errors.New("taskfile: exec: redirect field must be a string")
}
path = executor.ctx.ExpandAll(path)
f, err := os.OpenFile(path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
return nil, errors.Wrap(err, "could not create logs redirection file")
}
executor.redirect = f
}
return executor, nil
})
}