1//nolint:revive
 2package utils
 3
 4import (
 5	"fmt"
 6	"path"
 7	"strings"
 8	"unicode"
 9)
10
11// SanitizeRepo returns a sanitized version of the given repository name.
12func SanitizeRepo(repo string) string {
13	// We need to use an absolute path for the path to be cleaned correctly.
14	repo = strings.TrimPrefix(repo, "/")
15	repo = "/" + repo
16
17	// We're using path instead of filepath here because this is not OS dependent
18	// looking at you Windows
19	repo = path.Clean(repo)
20	repo = strings.TrimSuffix(repo, ".git")
21	return repo[1:]
22}
23
24// ValidateUsername returns an error if any of the given usernames are invalid.
25func ValidateUsername(username string) error {
26	if username == "" {
27		return fmt.Errorf("username cannot be empty")
28	}
29
30	if !unicode.IsLetter(rune(username[0])) {
31		return fmt.Errorf("username must start with a letter")
32	}
33
34	for _, r := range username {
35		if !unicode.IsLetter(r) && !unicode.IsDigit(r) && r != '-' {
36			return fmt.Errorf("username can only contain letters, numbers, and hyphens")
37		}
38	}
39
40	return nil
41}
42
43// ValidateRepo returns an error if the given repository name is invalid.
44func ValidateRepo(repo string) error {
45	if repo == "" {
46		return fmt.Errorf("repo cannot be empty")
47	}
48
49	for _, r := range repo {
50		if !unicode.IsLetter(r) && !unicode.IsDigit(r) && r != '-' && r != '_' && r != '.' && r != '/' {
51			return fmt.Errorf("repo can only contain letters, numbers, hyphens, underscores, periods, and slashes")
52		}
53	}
54
55	return nil
56}