oras-pull/build/cli.js

ORAS pull for ghcr.io

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const node_process_1 = __importDefault(require("node:process"));
const node_stream_1 = __importDefault(require("node:stream"));
const cross_fetch_1 = __importDefault(require("cross-fetch"));
const tar_1 = __importDefault(require("tar"));
async function oauth(repo) {
    const token = node_process_1.default.env.GITHUB_TOKEN;
    if (token === undefined || token.startsWith("gh") === false) {
        return "QQ==";
    }
    console.log("Token: \t" + repo);
    const tokenResponse = await (0, cross_fetch_1.default)(`https://ghcr.io/token?service=ghcr.io&scope=repository:${repo}:pull&client_id=npm-js-oras-pull`, {
        headers: {
            authorization: "Basic " + Buffer.from("foo:" + node_process_1.default.env.GITHUB_TOKEN).toString("base64"),
        }
    });
    if (tokenResponse.status !== 200) {
        console.dir(await tokenResponse.json());
        node_process_1.default.exit(1);
    }
    return (await tokenResponse.json()).token;
}
async function run() {
    const imageName = node_process_1.default.argv[2];
    if (imageName === undefined) {
        console.log("Supply argument");
        node_process_1.default.exit(1);
    }
    console.log("Pull: \t" + imageName);
    let [url, tag] = imageName.split(":");
    const repo = url.replace("ghcr.io/", "").split("/").splice(0, 2).join("/");
    const bearer = await oauth(repo);
    url = url.replace("ghcr.io", "https://ghcr.io/v2");
    const manifestResponse = await (0, cross_fetch_1.default)(url + '/manifests/' + tag, {
        headers: {
            accept: "application/vnd.oci.image.manifest.v1+json",
            authorization: "Bearer " + bearer
        }
    });
    if (manifestResponse.status !== 200) {
        console.dir(await manifestResponse.json());
        node_process_1.default.exit(1);
    }
    const manifest = await manifestResponse.json();
    const layer = manifest.layers[0];
    console.log("Digest: " + layer.digest);
    console.log("Size: \t" + layer.size + " bytes");
    const blobResponse = await (0, cross_fetch_1.default)(url + '/blobs/' + layer.digest, {
        headers: {
            authorization: "Bearer " + bearer
        }
    });
    if (blobResponse.status !== 200) {
        console.dir(await manifestResponse.json());
        node_process_1.default.exit(1);
    }
    const responseBuffer = Buffer.from(await blobResponse.arrayBuffer());
    const readableStream = node_stream_1.default.Readable.from(responseBuffer);
    console.log("");
    let count = 0;
    const st = readableStream.pipe(tar_1.default.extract({
        onentry: entry => {
            count++;
            if (count < 10) {
                console.log("Extract: " + entry.path);
            }
            else if (count % 100 === 0) {
                console.log(count);
            }
        }
    }));
    st.on('finish', () => {
        console.log(count + " folders/files extracted");
    });
}
run().then(() => {
    //  process.exit();
}).catch((err) => {
    console.log(err);
    node_process_1.default.exit(1);
});