@tarojs/cli/dist/util/hash.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const crypto_1 = require("crypto");
const fs = require("fs-extra");
const path = require("path");
const xxh = require("xxhashjs");
const HEXBASE = 16;
const defaultHashOptions = {
    method: 'xxhash32',
    shrink: 8,
    append: false
};
const getxxhash = (content, options) => {
    const hashFunc = options.method === 'xxhash32' ? xxh.h32 : xxh.h64;
    const seed = 0;
    return hashFunc(seed)
        .update(content)
        .digest()
        .toString(HEXBASE);
};
const getHash = (content, options) => {
    if (options.method && typeof options.method === 'function') {
        return options.method(content);
    }
    if (options.method && options.method.indexOf('xxhash') === 0) {
        return getxxhash(content, options);
    }
    try {
        const hashFunc = crypto_1.default.createHash(options.method);
        return hashFunc.update(content).digest('hex');
    }
    catch (e) {
        return null;
    }
};
function hash(content, options) {
    options = options || defaultHashOptions;
    let hash = getHash(content, options);
    if (hash == null) {
        // bad hash method fallback to defaults
        // TODO: warning/error reporting?
        hash = getHash(content, defaultHashOptions);
    }
    return options.shrink ? hash.substr(0, options.shrink) : hash;
}
exports.default = (file, options) => {
    const content = fs.readFileSync(file);
    const ext = path.extname(file);
    return hash(content, options) + ext;
};
//# sourceMappingURL=hash.js.map