1package config
 2
 3import (
 4	"fmt"
 5	"io"
 6	"strconv"
 7
 8	"git.sr.ht/~emersion/go-scfg"
 9)
10
11type (
12	Scan struct {
13		Path   string
14		Public bool
15	}
16
17	Configuration struct {
18		Scan *Scan
19	}
20)
21
22func Parse(r io.Reader) (*Configuration, error) {
23	block, err := scfg.Read(r)
24	if err != nil {
25		return nil, err
26	}
27
28	config := defaultConfiguration()
29
30	err = setScan(block, config.Scan)
31	if err != nil {
32		return nil, err
33	}
34
35	return config, nil
36}
37
38func defaultConfiguration() *Configuration {
39	return &Configuration{
40		Scan: &Scan{
41			Public: true,
42			Path:   "",
43		},
44	}
45}
46
47func setScan(block scfg.Block, scan *Scan) error {
48	scanDir := block.Get("scan")
49	err := setString(scanDir, &scan.Path)
50	if err != nil {
51		return err
52	}
53
54	public := scanDir.Children.Get("public")
55	return setBool(public, &scan.Public)
56}
57
58func setBool(dir *scfg.Directive, field *bool) error {
59
60	if dir != nil {
61		p1 := first(dir.Params)
62		v, err := strconv.ParseBool(p1)
63		if err != nil {
64			return fmt.Errorf("Error parsing bool param of %s: %w", dir.Name, err)
65		}
66		*field = v
67	}
68	return nil
69}
70
71func setString(dir *scfg.Directive, field *string) error {
72	if dir != nil {
73		*field = first(dir.Params)
74	}
75	return nil
76}
77
78func first[T any](v []T) T {
79	if len(v) == 0 {
80		var zero T
81		return zero
82	}
83	return v[0]
84}