forked from go-delve/delve
/
config.go
112 lines (97 loc) · 2.36 KB
/
config.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
package config
import (
"fmt"
"io/ioutil"
"os"
"os/user"
"path"
yaml "gopkg.in/yaml.v2"
)
const (
configDir string = ".dlv"
configFile string = "config.yml"
)
// Config defines all configuration options available to be set through the config file.
type Config struct {
Aliases map[string][]string
}
// LoadConfig attempts to populate a Config object from the config.yml file.
func LoadConfig() *Config {
err := createConfigPath()
if err != nil {
fmt.Printf("Could not create config directory: %v.")
return nil
}
fullConfigFile, err := GetConfigFilePath(configFile)
if err != nil {
fmt.Printf("Unable to get config file path: %v.", err)
return nil
}
f, err := os.Open(fullConfigFile)
if err != nil {
createDefaultConfig(fullConfigFile)
return nil
}
defer func() {
err := f.Close()
if err != nil {
fmt.Printf("Closing config file failed: %v.", err)
}
}()
data, err := ioutil.ReadAll(f)
if err != nil {
fmt.Printf("Unable to read config data: %v.", err)
return nil
}
var c Config
err = yaml.Unmarshal(data, &c)
if err != nil {
fmt.Printf("Unable to decode config file: %v.", err)
return nil
}
return &c
}
func createDefaultConfig(path string) {
f, err := os.Create(path)
if err != nil {
fmt.Printf("Unable to create config file: %v.", err)
return
}
defer func() {
err := f.Close()
if err != nil {
fmt.Printf("Closing config file failed: %v.", err)
}
}()
err = writeDefaultConfig(f)
if err != nil {
fmt.Printf("Unable to write default configuration: %v.", err)
}
}
func writeDefaultConfig(f *os.File) error {
_, err := f.WriteString(
`# Configuration file for the delve debugger.
# This is the default configuration file. Available options are provided, but disabled.
# Delete the leading hash mark to enable an item.
# Provided aliases will be added to the default aliases for a given command.
aliases:
# command: ["alias1", "alias2"]
`)
return err
}
// createConfigPath creates the directory structure at which all config files are saved.
func createConfigPath() error {
path, err := GetConfigFilePath("")
if err != nil {
return err
}
return os.MkdirAll(path, 0700)
}
// GetConfigFilePath gets the full path to the given config file name.
func GetConfigFilePath(file string) (string, error) {
usr, err := user.Current()
if err != nil {
return "", err
}
return path.Join(usr.HomeDir, configDir, file), nil
}