| Giorgi Lekveishvili | 081f18f | 2023-11-07 14:58:10 +0400 | [diff] [blame] | 1 | package installer |
| 2 | |
| 3 | import ( |
| 4 | "crypto/rand" |
| 5 | ) |
| 6 | |
| 7 | type NameGenerator interface { |
| 8 | Generate() (string, error) |
| 9 | } |
| 10 | |
| 11 | type fixedLengthRandomNameGenerator struct { |
| 12 | len int |
| 13 | } |
| 14 | |
| 15 | func NewFixedLengthRandomNameGenerator(len int) NameGenerator { |
| 16 | return &fixedLengthRandomNameGenerator{len} |
| 17 | } |
| 18 | |
| 19 | func (g *fixedLengthRandomNameGenerator) Generate() (string, error) { |
| 20 | r := make([]byte, g.len) |
| 21 | if _, err := rand.Read(r); err != nil { |
| 22 | return "", err |
| 23 | } |
| 24 | ret := make([]rune, g.len) |
| 25 | for i, v := range r { |
| 26 | ret[i] += letters[v%26] |
| 27 | } |
| 28 | return string(ret), nil |
| 29 | } |