66 lines
1.4 KiB
TypeScript
66 lines
1.4 KiB
TypeScript
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import { performance } from "node:perf_hooks";
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import { debuglog } from "node:util";
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type DebugFieldValue = boolean | number | string | null;
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type DebugFields = Record<string, DebugFieldValue>;
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const debug = debuglog("codex-rules");
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const noopTimer: HookDebugTimer = {
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lap: () => {},
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done: () => {},
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};
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export interface HookDebugTimer {
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lap(phase: string, fields?: DebugFields): void;
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done(fields?: DebugFields): void;
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}
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export function createHookDebugTimer(hookName: string): HookDebugTimer {
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if (!debug.enabled) {
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return noopTimer;
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}
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const startMs = performance.now();
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let lastMs = startMs;
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return {
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lap: (phase, fields = {}) => {
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const nowMs = performance.now();
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writeDebugLine(hookName, phase, nowMs - lastMs, nowMs - startMs, fields);
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lastMs = nowMs;
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},
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done: (fields = {}) => {
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const nowMs = performance.now();
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writeDebugLine(hookName, "done", nowMs - lastMs, nowMs - startMs, fields);
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lastMs = nowMs;
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},
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};
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}
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function writeDebugLine(
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hookName: string,
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phase: string,
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durationMs: number,
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totalMs: number,
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fields: DebugFields,
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): void {
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debug(
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"%s phase=%s ms=%s total_ms=%s%s",
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hookName,
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phase,
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durationMs.toFixed(3),
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totalMs.toFixed(3),
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formatFields(fields),
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);
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}
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function formatFields(fields: DebugFields): string {
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const entries = Object.entries(fields);
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if (entries.length === 0) {
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return "";
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}
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return ` ${entries.map(([key, value]) => `${key}=${String(value)}`).join(" ")}`;
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}
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