| 1 | import * as ConfigProvider from "effect/ConfigProvider"; |
| 2 | import * as Effect from "effect/Effect"; |
| 3 | |
| 4 | /** |
| 5 | * The variable names an env-style ConfigProvider knows, for debug logging. |
| 6 | * |
| 7 | * `fromEnv`/`fromDotEnv` index variables as a trie split on `_` |
| 8 | * (`APP_DB_URL` lives at `["APP", "DB", "URL"]`), so the names are rebuilt |
| 9 | * by walking that trie and joining the segments again. A node carrying a |
| 10 | * value is a variable even when it also has children (`APP` and `APP_DB`). |
| 11 | * Values are never read. |
| 12 | */ |
| 13 | export const envKeys = (provider: ConfigProvider.ConfigProvider) => { |
| 14 | const walk = ( |
| 15 | path: ReadonlyArray<string>, |
| 16 | ): Effect.Effect<ReadonlyArray<string>, ConfigProvider.SourceError> => |
| 17 | Effect.gen(function* () { |
| 18 | const node = yield* provider.load(path); |
| 19 | if (node === undefined) return []; |
| 20 | const name = path.join("_"); |
| 21 | if (node._tag === "Value") return [name]; |
| 22 | if (node._tag !== "Record") return []; |
| 23 | const children = yield* Effect.forEach([...node.keys], (key) => |
| 24 | walk([...path, key]), |
| 25 | ); |
| 26 | const own = node.value === undefined ? [] : [name]; |
| 27 | return [...own, ...children.flat()]; |
| 28 | }); |
| 29 | return walk([]).pipe(Effect.catch(() => Effect.succeed([]))); |
| 30 | }; |
| 31 | |
| 32 | /** `Loaded 3 secrets from <source>: A, B, C` at debug level. Names are sorted. */ |
| 33 | export const logLoadedKeys = (source: string, keys: ReadonlyArray<string>) => |
| 34 | Effect.logDebug( |
| 35 | keys.length === 0 |
| 36 | ? `Loaded no secrets from ${source}` |
| 37 | : `Loaded ${keys.length} secrets from ${source}: ${[...keys].sort().join(", ")}`, |
| 38 | ); |