@netlify/content-engine
Version:
50 lines • 2.48 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.bootstrapSchemaHotReloader = bootstrapSchemaHotReloader;
exports.startSchemaHotReloader = startSchemaHotReloader;
exports.stopSchemaHotReloader = stopSchemaHotReloader;
const lodash_clonedeep_1 = __importDefault(require("lodash.clonedeep"));
const lodash_debounce_1 = __importDefault(require("lodash.debounce"));
const redux_1 = require("../redux");
const schema_1 = require("../schema");
const inference_metadata_1 = require("../schema/infer/inference-metadata");
const reporter_1 = __importDefault(require("../reporter"));
const inferredTypesChanged = (typeMap, prevTypeMap) => Object.keys(typeMap).some((type) => typeMap[type].dirty && !(0, inference_metadata_1.haveEqualFields)(typeMap[type], prevTypeMap[type]));
let lastMetadata;
// API_RUNNING_QUEUE_EMPTY could be emitted multiple types
// in a short period of time, so debounce seems reasonable
const maybeRebuildSchema = (0, lodash_debounce_1.default)(async () => {
const { inferenceMetadata } = redux_1.store.getState();
if (!inferredTypesChanged(inferenceMetadata.typeMap, lastMetadata.typeMap)) {
return;
}
const activity = reporter_1.default.activityTimer(`rebuild schema`);
activity.start();
await (0, schema_1.rebuild)({ parentSpan: activity });
activity.end();
}, 1000);
function snapshotInferenceMetadata() {
const { inferenceMetadata } = redux_1.store.getState();
lastMetadata = (0, lodash_clonedeep_1.default)(inferenceMetadata);
}
function bootstrapSchemaHotReloader() {
// Snapshot inference metadata at the time of the last schema rebuild
// (even if schema was rebuilt elsewhere)
// Using the snapshot later to check if inferred types actually changed since the last rebuild
snapshotInferenceMetadata();
redux_1.emitter.on(`SET_SCHEMA`, snapshotInferenceMetadata);
startSchemaHotReloader();
}
function startSchemaHotReloader() {
// Listen for node changes outside of a regular sourceNodes API call,
// e.g. markdown file update via watcher
redux_1.emitter.on(`API_RUNNING_QUEUE_EMPTY`, maybeRebuildSchema);
}
function stopSchemaHotReloader() {
redux_1.emitter.off(`API_RUNNING_QUEUE_EMPTY`, maybeRebuildSchema);
maybeRebuildSchema.cancel();
}
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