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bootstrap - add helper utility for node.js things

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This commit is contained in:
Benjamin Pasero
2020-06-24 17:43:52 +02:00
parent 4deff1a75b
commit c0a4e9e84f
3 changed files with 65 additions and 55 deletions
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59
src/bootstrap-fork.js vendored
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@@ -7,15 +7,16 @@
'use strict';
const bootstrap = require('./bootstrap');
const bootstrapNode = require('./bootstrap-node');
// Remove global paths from the node module lookup
removeGlobalNodeModuleLookupPaths();
bootstrapNode.removeGlobalNodeModuleLookupPaths();
// Enable ASAR in our forked processes
bootstrap.enableASARSupport();
if (process.env['VSCODE_INJECT_NODE_MODULE_LOOKUP_PATH']) {
injectNodeModuleLookupPath(process.env['VSCODE_INJECT_NODE_MODULE_LOOKUP_PATH']);
bootstrapNode.injectNodeModuleLookupPath(process.env['VSCODE_INJECT_NODE_MODULE_LOOKUP_PATH']);
}
// Configure: pipe logging to parent process
@@ -39,61 +40,9 @@ configureCrashReporter();
// Load AMD entry point
require('./bootstrap-amd').load(process.env['AMD_ENTRYPOINT']);
//#region Helpers
/**
* Add support for redirecting the loading of node modules
*
* @param {string} injectPath
*/
function injectNodeModuleLookupPath(injectPath) {
if (!injectPath) {
throw new Error('Missing injectPath');
}
const Module = require('module');
const path = require('path');
const nodeModulesPath = path.join(__dirname, '../node_modules');
// @ts-ignore
const originalResolveLookupPaths = Module._resolveLookupPaths;
// @ts-ignore
Module._resolveLookupPaths = function (moduleName, parent) {
const paths = originalResolveLookupPaths(moduleName, parent);
if (Array.isArray(paths)) {
for (let i = 0, len = paths.length; i < len; i++) {
if (paths[i] === nodeModulesPath) {
paths.splice(i, 0, injectPath);
break;
}
}
}
return paths;
};
}
function removeGlobalNodeModuleLookupPaths() {
const Module = require('module');
// @ts-ignore
const globalPaths = Module.globalPaths;
// @ts-ignore
const originalResolveLookupPaths = Module._resolveLookupPaths;
// @ts-ignore
Module._resolveLookupPaths = function (moduleName, parent) {
const paths = originalResolveLookupPaths(moduleName, parent);
let commonSuffixLength = 0;
while (commonSuffixLength < paths.length && paths[paths.length - 1 - commonSuffixLength] === globalPaths[globalPaths.length - 1 - commonSuffixLength]) {
commonSuffixLength++;
}
return paths.slice(0, paths.length - commonSuffixLength);
};
}
function pipeLoggingToParent() {
const MAX_LENGTH = 100000;