File size: 1,939 Bytes
d522ffa | 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 54 55 56 57 58 | import { readFile } from 'node:fs/promises';
import { parse as parseToml } from 'smol-toml';
import { sourceConfigJson, sourceConfigToml } from './paths.js';
export type SourceConfig =
| { readonly kind: 'toml'; readonly parsed: Record<string, unknown> }
| { readonly kind: 'json'; readonly parsed: Record<string, unknown> }
| { readonly kind: 'missing' }
| { readonly kind: 'unreadable'; readonly path: string };
function isRecord(value: unknown): value is Record<string, unknown> {
return typeof value === 'object' && value !== null && !Array.isArray(value);
}
function isEnoent(error: unknown): boolean {
return (
typeof error === 'object' &&
error !== null &&
(error as { code?: unknown }).code === 'ENOENT'
);
}
export async function readSourceConfig(sourceHome: string): Promise<SourceConfig> {
const tomlPath = sourceConfigToml(sourceHome);
let tomlText: string | undefined;
try {
tomlText = await readFile(tomlPath, 'utf-8');
} catch (error) {
// Only a missing file falls through to the JSON-era config; any other read
// failure (permissions, I/O) is a data problem the report must surface.
if (!isEnoent(error)) return { kind: 'unreadable', path: tomlPath };
}
if (tomlText !== undefined) {
try {
const parsed: unknown = parseToml(tomlText);
return { kind: 'toml', parsed: isRecord(parsed) ? parsed : {} };
} catch {
return { kind: 'unreadable', path: tomlPath };
}
}
const jsonPath = sourceConfigJson(sourceHome);
let jsonText: string | undefined;
try {
jsonText = await readFile(jsonPath, 'utf-8');
} catch (error) {
if (!isEnoent(error)) return { kind: 'unreadable', path: jsonPath };
return { kind: 'missing' };
}
try {
const parsed: unknown = JSON.parse(jsonText);
return { kind: 'json', parsed: isRecord(parsed) ? parsed : {} };
} catch {
return { kind: 'unreadable', path: jsonPath };
}
}
|