@nanobot248/linux-dedupe/dist/cli.js

Provides wrapper methods for FIDEDUPERANGE ioctl on linux, allowing to deduplicate file ranges.

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
const crypto = __importStar(require("crypto"));
const index_1 = require("./index");
async function testDedup(basePath) {
    const buf1 = crypto.randomBytes(1024 * 1024);
    const buf2 = crypto.randomBytes(1024 * 1024);
    const buf = crypto.randomBytes(5 * 1024 * 1024);
    const filename1 = path.join(basePath, "testFile1.dat");
    const filename2 = path.join(basePath, "testFile2.dat");
    await fs.promises.writeFile(filename1, buf1);
    await fs.promises.writeFile(filename2, buf2);
    await fs.promises.appendFile(filename1, buf);
    await fs.promises.appendFile(filename2, buf);
    const fd1 = await fs.promises.open(filename1, fs.constants.O_RDONLY);
    const fd2 = await fs.promises.open(filename2, fs.constants.O_RDONLY);
    const deduplicator = new index_1.Deduplicator();
    console.log("trying to dedupe whole file ...");
    let result = await deduplicator.dedupe(fd1.fd, 0, buf1.length + buf.length, fd2.fd, 0);
    console.log("Dedupe result:", result);
    console.log("Dedupe status: " + index_1.getStatusInfo(result.status));
    console.log("trying to dedupe only safe range ...");
    result = await deduplicator.dedupe(fd1.fd, buf1.length, buf.length, fd2.fd, buf1.length);
    console.log("Dedupe result:", result);
    console.log("Dedupe status: " + index_1.getStatusInfo(result.status));
}
testDedup("/media/backup-wd01/dedupe-test");
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