astro-ghostcms/.pnpm-store/v3/files/16/04b85598b3930f1508a64c5bda7...

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2024-02-14 14:10:47 +00:00
"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.deterministicString = void 0;
const node_crypto_1 = require("node:crypto");
const isPlainObject_1 = __importDefault(require("./isPlainObject"));
const encoders_1 = require("./encoders");
/** Creates a deterministic hash for all inputs. */
async function deterministicHash(input, algorithm = "SHA-1", output = "hex") {
const encoder = new TextEncoder();
const data = encoder.encode(deterministicString(input));
const hash = await node_crypto_1.webcrypto.subtle.digest(algorithm, data);
return encoders_1.encoders[output](hash);
}
exports.default = deterministicHash;
function deterministicString(input) {
if (typeof input === 'string') {
//wrap in quotes (and escape queotes) to differentiate from stringified primitives
return JSON.stringify(input);
}
else if (typeof input === 'symbol' || typeof input === 'function') {
//use `toString` for an accurate representation of these
return input.toString();
}
else if (typeof input === 'bigint') {
//bigint turns into a string int, so I need to differentiate it from a normal int
return `${input}n`;
}
else if (input === globalThis || input === undefined || input === null || typeof input === 'boolean' || typeof input === 'number' || typeof input !== 'object') {
//cast to string for any of these
return `${input}`;
}
else if (input instanceof Date) {
//using timestamp for dates
return `(${input.constructor.name}:${input.getTime()})`;
}
else if (input instanceof RegExp || input instanceof Error || input instanceof WeakMap || input instanceof WeakSet) {
//use simple `toString`. `WeakMap` and `WeakSet` are non-iterable, so this is the best I can do
return `(${input.constructor.name}:${input.toString()})`;
}
else if (input instanceof Set) {
//add the constructor as a key
let ret = `(${input.constructor.name}:[`;
//add all unique values
for (const val of input.values()) {
ret += `${deterministicString(val)},`;
}
ret += '])';
return ret;
}
else if (Array.isArray(input) ||
input instanceof Int8Array ||
input instanceof Uint8Array ||
input instanceof Uint8ClampedArray ||
input instanceof Int16Array ||
input instanceof Uint16Array ||
input instanceof Int32Array ||
input instanceof Uint32Array ||
input instanceof Float32Array ||
input instanceof Float64Array ||
input instanceof BigInt64Array ||
input instanceof BigUint64Array) {
//add the constructor as a key
let ret = `(${input.constructor.name}:[`;
//add all key/value pairs
for (const [k, v] of input.entries()) {
ret += `(${k}:${deterministicString(v)}),`;
}
ret += '])';
return ret;
}
else if (input instanceof ArrayBuffer || input instanceof SharedArrayBuffer) {
//each typed array must be in multiples of their byte size.
//see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray#typedarray_objects
if (input.byteLength % 8 === 0) {
return deterministicString(new BigUint64Array(input));
}
else if (input.byteLength % 4 === 0) {
return deterministicString(new Uint32Array(input));
}
else if (input.byteLength % 2 === 0) {
return deterministicString(new Uint16Array(input));
}
else {
/** @todo - Change this to a system that breaks it down into parts. E.g. byteLength of 17 = BigUint64Array*2 and Uint8Array */
let ret = '(';
for (let i = 0; i < input.byteLength; i++) {
ret += `${deterministicString(new Uint8Array(input.slice(i, i + 1)))},`;
}
ret += ')';
return ret;
}
}
else if (input instanceof Map || (0, isPlainObject_1.default)(input)) {
//all key/values will be put here for sorting by key
const sortable = [];
//get key/value pairs
const entries = (input instanceof Map
? input.entries()
: Object.entries(input));
//add all key value pairs
for (const [k, v] of entries) {
sortable.push([deterministicString(k), deterministicString(v)]);
}
//if not a map, get Symbol keys and add them
if (!(input instanceof Map)) {
const symbolKeys = Object.getOwnPropertySymbols(input);
//convert each symbol key to a key/value pair
for (let i = 0; i < symbolKeys.length; i++) {
sortable.push([
deterministicString(symbolKeys[i]),
deterministicString(
//have to ignore because `noImplicitAny` is `true` but this is implicitly `any`
//@ts-ignore
input[symbolKeys[i]])
]);
}
}
//sort alphabetically by keys
sortable.sort(([a], [b]) => a.localeCompare(b));
//add the constructor as a key
let ret = `(${input.constructor.name}:[`;
//add all of the key/value pairs
for (const [k, v] of sortable) {
ret += `(${k}:${v}),`;
}
ret += '])';
return ret;
}
//a class/non-plain object
const allEntries = [];
for (const k in input) {
allEntries.push([
deterministicString(k),
deterministicString(
//have to ignore because `noImplicitAny` is `true` but this is implicitly `any`
//@ts-ignore
input[k])
]);
}
//get all own property symbols
const symbolKeys = Object.getOwnPropertySymbols(input);
//convert each symbol key to a key/value pair
for (let i = 0; i < symbolKeys.length; i++) {
allEntries.push([
deterministicString(symbolKeys[i]),
deterministicString(
//have to ignore because `noImplicitAny` is `true` but this is implicitly `any`
//@ts-ignore
input[symbolKeys[i]])
]);
}
//sort alphabetically by keys
allEntries.sort(([a], [b]) => a.localeCompare(b));
//add the constructor as a key
let ret = `(${input.constructor.name}:[`;
//add all of the key/value pairs
for (const [k, v] of allEntries) {
ret += `(${k}:${v}),`;
}
ret += '])';
return ret;
}
exports.deterministicString = deterministicString;