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Last active September 23, 2018 20:46
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  1. bengl renamed this gist Sep 23, 2018. 1 changed file with 0 additions and 0 deletions.
    File renamed without changes.
  2. bengl created this gist Sep 23, 2018.
    7 changes: 7 additions & 0 deletions 0-README.md
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,7 @@
    This is an example app that has been bundled with `qbundler`.

    It's a bundled version of <https://github.com/bengl/qbundler/tree/master/testapp>.

    You can try this yourself!

    Just `npm i -g qdd`, then download this JS file and run it. A server will be running after it quickly downloads its dependencies, like magic!
    648 changes: 648 additions & 0 deletions cowsay-app.qbundled.js
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,648 @@
    // BEGIN qdd loader
    {
    'use strict';

    const Module = require('module');
    const fs = require('fs');
    const { execSync } = require('child_process');

    const cacheDir = (process.env.QDD_CACHE || `${process.env.HOME}/.cache/qdd`);

    let entrypoint;

    // 1. Set up the lock tree

    let lockTree;
    try {
    lockTree = require(process.cwd() + '/package-lock.json');
    parseLockTree();
    } catch (lockTreeErr) {
    // get it later in _load
    }

    function getLockTree (mainFilename) {
    if (lockTree) {
    return lockTree;
    }
    entrypoint = mainFilename;
    const content = fs.readFileSync(mainFilename, 'utf8');
    const [beforeJson, afterJson] = content.split(/^\/\*\*package-lock(?:\s|$)/m);
    if (afterJson) {
    const [json, rest] = afterJson.split(/\*\*\/$/m);
    if (rest) {
    try {
    lockTree = JSON.parse(json.replace(/^\s*\*/mg, ""));
    parseLockTree();
    return lockTree;
    } catch (e) {
    throw new Error('badly formed in-line package-lock');
    }
    }
    }
    throw new Error('no package-lock found');
    }

    function parseLockTree() {
    lockTree.requires = lockTree.dependencies;

    function getDep (node, depName) {
    const deps = node.dependencies;
    return deps && deps[depName] ? deps[depName] : getDep(node.parent, depName);
    }

    (function augmentTree (node, parent) {
    for (const depName of Object.keys(node.dependencies || {})) {
    const dep = node.dependencies[depName];
    dep.parent = node;
    augmentTree(dep);
    }
    node.requiresNodes = {};
    for (const dep of Object.keys(node.requires || {})) {
    node.requiresNodes[dep] = getDep(node, dep);
    }
    delete node.parent; // no longer needed
    })(lockTree);
    }

    // 2. Shim the module loader

    let installed = false;

    function cache (node) {
    const dir = cacheDir + '/' + node.integrity;
    if (!installed) {
    try {
    fs.accessSync(dir, fs.constants.F_OK);
    } catch (e) {
    execSync(`qdd --onlycache`, {
    env: Object.assign({}, process.env, { QDD_LOCKJS: entrypoint })
    });
    }
    installed = true;
    }
    return dir;
    }

    let currentParent;

    const origFindPath = Module._findPath;
    Module._findPath = function (request, paths, isMain) {
    if (isMain) {
    return origFindPath(request, paths, isMain);
    }
    delete currentParent.nextTreeNode;
    const maybeOrig = origFindPath(request, paths, isMain);
    if (maybeOrig) {
    return maybeOrig;
    }
    const node = currentParent.treeNode;
    for (const name of (Object.keys(node.requiresNodes || {}))) {
    if (request === name || request.startsWith(name + '/')) {
    const newNode = node.requiresNodes[name];
    currentParent.nextTreeNode = newNode;
    return origFindPath(request.replace(name, cache(newNode)), paths, isMain);
    }
    }
    };

    const origResolveFilename = Module._resolveFilename;
    Module._resolveFilename = function (request, parent, isMain) {
    if (!isMain) {
    currentParent = parent;
    }
    return origResolveFilename(request, parent, isMain);
    };

    const origLoad = Module.prototype.load;
    Module.prototype.load = function (filename) {
    this.treeNode = this.parent
    ? (this.parent.nextTreeNode || this.parent.treeNode)
    : getLockTree(filename);
    return origLoad.call(this, filename);
    };

    module.treeNode = getLockTree(__filename);
    currentParent = module;
    }
    // TODO this actually needs makeRequireFunction, not just module.require
    require = module.require.bind(module);
    // END qdd loader

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    app.get('/', __webpack_require__(2));

    app.get('/:name', __webpack_require__(3));

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    /***/ (function(module, exports) {

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