-
Notifications
You must be signed in to change notification settings - Fork 4
/
load-parameters-from-json.go
53 lines (46 loc) · 1.26 KB
/
load-parameters-from-json.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
package middlewares
import (
"encoding/json"
"github.com/go-go-golems/glazed/pkg/cmds/layers"
"github.com/go-go-golems/glazed/pkg/cmds/parameters"
"github.com/pkg/errors"
"gopkg.in/yaml.v3"
"os"
"strings"
)
// LoadParametersFromFile loads parameter definitions from a JSON file and applies them to the parameter layers.
func LoadParametersFromFile(filename string, options ...parameters.ParseStepOption) Middleware {
return func(next HandlerFunc) HandlerFunc {
return func(layers_ *layers.ParameterLayers, parsedLayers *layers.ParsedLayers) error {
err := next(layers_, parsedLayers)
if err != nil {
return err
}
m := map[string]map[string]interface{}{}
switch {
case strings.HasSuffix(filename, ".json"):
bytes, err := os.ReadFile(filename)
if err != nil {
return err
}
err = json.Unmarshal(bytes, &m)
if err != nil {
return err
}
case strings.HasSuffix(filename, ".yaml"),
strings.HasSuffix(filename, ".yml"):
bytes, err := os.ReadFile(filename)
if err != nil {
return err
}
err = yaml.Unmarshal(bytes, &m)
if err != nil {
return err
}
default:
return errors.New("unsupported file type")
}
return updateFromMap(layers_, parsedLayers, m, options...)
}
}
}