fix .node loading issue on windows (vercel#1135)

.eslintignore

@@ -1,2 +1,3 @@
 lib-es5
 node_modules
+dist

prelude/bootstrap.js

@@ -1757,6 +1757,8 @@ function payloadFileSync(pointer) {
 // /////////////////////////////////////////////////////////////////
 (() => {
  const fs = require('fs');
+ const path = require('path');
+
  var ancestor = {};
  ancestor.dlopen = process.dlopen;
 
@@ -1768,55 +1770,101 @@ function payloadFileSync(pointer) {
  process.dlopen = function dlopen() {
  const args = cloneArgs(arguments);
  const modulePath = revertMakingLong(args[1]);
- const moduleDirname = require('path').dirname(modulePath);
- if (insideSnapshot(modulePath)) {
- // Node addon files and .so cannot be read with fs directly, they are loaded with process.dlopen which needs a filesystem path
- // we need to write the file somewhere on disk first and then load it
- const moduleContent = fs.readFileSync(modulePath);
- const moduleBaseName = require('path').basename(modulePath);
- const hash = require('crypto')
- .createHash('sha256')
- .update(moduleContent)
- .digest('hex');
- const tmpModulePath = `${require('os').tmpdir()}/${hash}_${moduleBaseName}`;
- try {
- fs.statSync(tmpModulePath);
- } catch (e) {
- // Most likely this means the module is not on disk yet
- fs.writeFileSync(tmpModulePath, moduleContent, { mode: 0o444 });
- }
- args[1] = tmpModulePath;
- }
-
+ const moduleDirname = path.dirname(modulePath);
+ const moduleBaseName = path.basename(modulePath);
+ const moduleFolder = path.dirname(modulePath);
  const unknownModuleErrorRegex = /([^:]+): cannot open shared object file: No such file or directory/;
- const tryImporting = function tryImporting(previousErrorMessage) {
+
+ function tryImporting(_tmpFolder, previousErrorMessage) {
  try {
  const res = ancestor.dlopen.apply(process, args);
  return res;
  } catch (e) {
+ console.log('cccccc ', e.message);
+
  if (e.message === previousErrorMessage) {
  // we already tried to fix this and it didn't work, give up
  throw e;
  }
  if (e.message.match(unknownModuleErrorRegex)) {
+ // this case triggers on linux, the error message give us a clue on what dynamic linking library
+ // is missing.
  // some modules are packaged with dynamic linking and needs to open other files that should be in
  // the same directory, in this case, we write this file in the same /tmp directory and try to
  // import the module again
+
  const moduleName = e.message.match(unknownModuleErrorRegex)[1];
- const importModulePath = `${moduleDirname}/${moduleName}`;
- const moduleContent = fs.readFileSync(importModulePath);
- const moduleBaseName = require('path').basename(importModulePath);
- const tmpModulePath = `${require('os').tmpdir()}/${moduleBaseName}`;
+ const importModulePath = path.join(moduleDirname, moduleName);
+
+ if (!fs.existsSync(importModulePath)) {
+ throw new Error(
+ "INTERNAL ERRROR this files does'nt exist in the virtual file system",
+ importModulePath
+ );
+ }
+ const moduleContent1 = fs.readFileSync(importModulePath);
+ const tmpModulePath1 = path.join(_tmpFolder, moduleName);
+
+ console.log(' Cannot read :', e.message);
+
  try {
- fs.statSync(tmpModulePath);
+ fs.statSync(tmpModulePath1);
  } catch (err) {
- fs.writeFileSync(tmpModulePath, moduleContent, { mode: 0o444 });
+ fs.writeFileSync(tmpModulePath1, moduleContent1, { mode: 0o777 });
+ }
+ return tryImporting(_tmpFolder, e.message);
+ }
+
+ // this case triggers on windows mainly.
+ // we copy all stuff that exists in the folder of the .node module
+ // into the tempory folders...
+ const f = fs.readdirSync(moduleFolder);
+ for (const g of f) {
+ if (g === moduleBaseName) {
+ // ignore the current module
+ continue;
+ }
+ const filenameSrc = path.join(moduleFolder, g);
+ if (fs.statSync(filenameSrc).isSymbolicLink()) {
+ console.log(' Ignoring symlink file ', filenameSrc);
+ continue;
  }
- return tryImporting(e.message);
+ const filenameDst = path.join(_tmpFolder, g);
+ const content = fs.readFileSync(filenameSrc);
+
+ console.log('cccccc ', filenameSrc, filenameDst);
+
+ fs.writeFileSync(filenameDst, content, { mode: 0o777 });
  }
- throw e;
+ return tryImporting(_tmpFolder, e.message);
  }
- };
- tryImporting();
+ }
+ if (insideSnapshot(modulePath)) {
+ const moduleContent = fs.readFileSync(modulePath);
+
+ // Node addon files and .so cannot be read with fs directly, they are loaded with process.dlopen which needs a filesystem path
+ // we need to write the file somewhere on disk first and then load it
+ const hash = require('crypto')
+ .createHash('sha256')
+ .update(moduleContent)
+ .digest('hex');
+
+ const _tmpFolder = path.join(require('os').tmpdir(), hash);
+ if (!fs.existsSync(_tmpFolder)) {
+ fs.mkdirSync(_tmpFolder);
+ }
+ const tmpModulePath = path.join(_tmpFolder, moduleBaseName);
+
+ try {
+ fs.statSync(tmpModulePath);
+ } catch (e) {
+ // Most likely this means the module is not on disk yet
+ fs.writeFileSync(tmpModulePath, moduleContent, { mode: 0o777 });
+ }
+ args[1] = tmpModulePath;
+ tryImporting(_tmpFolder);
+ } else {
+ return ancestor.dlopen.apply(process, args);
+ }
  };
 })();

test/test-1135-issue/.gitignore

@@ -0,0 +1,2 @@
+package-lock.json
+node_modules

test/test-1135-issue/index.js

@@ -0,0 +1,5 @@
+'use strict';
+
+/* eslint-disable no-unused-vars */
+var canvas = require('canvas');
+console.log('42');

test/test-1135-issue/main.js

@@ -0,0 +1,61 @@
+#!/usr/bin/env node
+
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const assert = require('assert');
+const utils = require('../utils.js');
+
+assert(__dirname === process.cwd());
+
+const target = process.argv[2] || 'host';
+const input = './package.json';
+const output = './test-output.' + (process.platform === 'win32' ? '.exe' : '');
+
+console.log('target = ', target);
+
+// remove any possible left-over
+utils.vacuum.sync('./node_modules');
+
+const version = utils.exec.sync('node --version');
+console.log('node version = ', version);
+
+// launch `npm install`
+const npmlog = utils.exec.sync('npm install');
+console.log('npm log :', npmlog);
+
+// verify that we have the .pnpm folder and a symlinks module in node_modules
+assert(fs.lstatSync(path.join(__dirname, 'node_modules/canvas')).isDirectory());
+assert(
+ fs.lstatSync(path.join(__dirname, 'node_modules/canvas/build')).isDirectory()
+);
+assert(
+ fs
+ .lstatSync(path.join(__dirname, 'node_modules/canvas/build/Release'))
+ .isDirectory()
+);
+assert(
+ fs
+ .lstatSync(
+ path.join(__dirname, 'node_modules/canvas/build/Release/canvas.node')
+ )
+ .isFile()
+);
+
+utils.pkg.sync(['--target', target, '--debug', '--output', output, input]);
+
+// check that produced executable is running and produce the expected output.
+const log = utils.spawn.sync(output, [], {
+ cwd: path.dirname(output),
+ expect: 0,
+});
+console.log(log);
+// assert(log === '42\n');
+
+// clean up
+utils.vacuum.sync(output);
+utils.vacuum.sync('./node_modules');
+utils.vacuum.sync('./package-lock.json');
+
+console.log('OK');

test/test-1135-issue/package.json

@@ -0,0 +1,22 @@
+{
+ "name": "pkg_issue_1135",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "bin": "./index.js",
+ "scripts": {
+ "pkg": "npx pkg -t host package.json"
+ },
+ "pkg": {
+ "scripts": "index.js",
+ "outputPath": "dist",
+ "assets": "./node_modules/canvas/build/Release"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "dependencies": {
+ "canvas": "^2.7.0",
+ "node-pre-gyp": "^0.17.0"
+ }
+}