| 1 | package changelog |
| 2 | |
| 3 | import ( |
| 4 | "bytes" |
| 5 | "encoding/json" |
| 6 | "errors" |
| 7 | "fmt" |
| 8 | "io/fs" |
| 9 | "os" |
| 10 | "strings" |
| 11 | ) |
| 12 | |
| 13 | // LoadPeople reads people.json, a map from address to display name. |
| 14 | // Addresses are matched case-insensitively. |
| 15 | func LoadPeople(path string) (People, error) { |
| 16 | raw, err := os.ReadFile(path) |
| 17 | if err != nil { |
| 18 | return nil, err |
| 19 | } |
| 20 | var m map[string]string |
| 21 | if err := json.Unmarshal(raw, &m); err != nil { |
| 22 | return nil, fmt.Errorf("%s: %w", path, err) |
| 23 | } |
| 24 | p := People{} |
| 25 | for k, v := range m { |
| 26 | if k == "//" { |
| 27 | continue |
| 28 | } |
| 29 | p[strings.ToLower(k)] = v |
| 30 | } |
| 31 | return p, nil |
| 32 | } |
| 33 | |
| 34 | // LoadLinks reads changelog-links.json. A missing file is no links. |
| 35 | func LoadLinks(path string) (Links, error) { |
| 36 | raw, err := os.ReadFile(path) |
| 37 | if errors.Is(err, fs.ErrNotExist) { |
| 38 | return Links{}, nil |
| 39 | } |
| 40 | if err != nil { |
| 41 | return nil, err |
| 42 | } |
| 43 | var m map[string]json.RawMessage |
| 44 | if err := json.Unmarshal(raw, &m); err != nil { |
| 45 | return nil, fmt.Errorf("%s: %w", path, err) |
| 46 | } |
| 47 | l := Links{} |
| 48 | for tag, v := range m { |
| 49 | if tag == "//" { |
| 50 | continue |
| 51 | } |
| 52 | var byLead map[string][]string |
| 53 | if err := json.Unmarshal(v, &byLead); err != nil { |
| 54 | return nil, fmt.Errorf("%s: %s: %w", path, tag, err) |
| 55 | } |
| 56 | l[tag] = byLead |
| 57 | } |
| 58 | return l, nil |
| 59 | } |
| 60 | |
| 61 | // Load reads a committed changelog.json. |
| 62 | func Load(path string) (*Changelog, error) { |
| 63 | raw, err := os.ReadFile(path) |
| 64 | if err != nil { |
| 65 | return nil, err |
| 66 | } |
| 67 | var c Changelog |
| 68 | dec := json.NewDecoder(bytes.NewReader(raw)) |
| 69 | dec.DisallowUnknownFields() |
| 70 | if err := dec.Decode(&c); err != nil { |
| 71 | return nil, fmt.Errorf("%s: %w", path, err) |
| 72 | } |
| 73 | return &c, nil |
| 74 | } |
| 75 | |
| 76 | // Marshal is the committed form: indented, no HTML escaping (the notes |
| 77 | // carry "<app>" placeholders), and a trailing newline. |
| 78 | func Marshal(c *Changelog) ([]byte, error) { |
| 79 | var b bytes.Buffer |
| 80 | enc := json.NewEncoder(&b) |
| 81 | enc.SetEscapeHTML(false) |
| 82 | enc.SetIndent("", " ") |
| 83 | if err := enc.Encode(c); err != nil { |
| 84 | return nil, err |
| 85 | } |
| 86 | return b.Bytes(), nil |
| 87 | } |
| 88 | |
amadan