92 lines
2.3 KiB
JavaScript
92 lines
2.3 KiB
JavaScript
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'use strict';
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const fs = require('fs');
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const path = require('path');
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const babylon = require('babylon');
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const generate = require('babel-generator').default;
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const traverse = require('babel-traverse').default;
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const defaultsTemplate = body => `
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// Generated with \`lib/make.js\`
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'use strict';
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const os = require('os');
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const path = require('path');
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const temp = os.tmpdir();
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const uidOrPid = process.getuid ? process.getuid() : process.pid;
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const hasUnicode = () => true;
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const isWindows = process.platform === 'win32';
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const osenv = {
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editor: () => process.env.EDITOR || process.env.VISUAL || (isWindows ? 'notepad.exe' : 'vi'),
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shell: () => isWindows ? (process.env.COMSPEC || 'cmd.exe') : (process.env.SHELL || '/bin/bash')
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};
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const umask = {
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fromString: () => process.umask()
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};
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let home = os.homedir();
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if (home) {
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process.env.HOME = home;
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} else {
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home = path.resolve(temp, 'npm-' + uidOrPid);
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}
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const cacheExtra = process.platform === 'win32' ? 'npm-cache' : '.npm';
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const cacheRoot = process.platform === 'win32' ? process.env.APPDATA : home;
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const cache = path.resolve(cacheRoot, cacheExtra);
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let defaults;
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let globalPrefix;
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${body}
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`;
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const typesTemplate = body => `
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// Generated with \`lib/make.js\`
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'use strict';
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const path = require('path');
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const Stream = require('stream').Stream;
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const url = require('url');
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const Umask = () => {};
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const getLocalAddresses = () => [];
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const semver = () => {};
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${body}
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`;
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const defaults = require.resolve('npm/lib/config/defaults');
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const ast = babylon.parse(fs.readFileSync(defaults, 'utf8'));
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const isDefaults = node =>
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node.callee.type === 'MemberExpression' &&
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node.callee.object.name === 'Object' &&
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node.callee.property.name === 'defineProperty' &&
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node.arguments.some(x => x.name === 'exports');
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const isTypes = node =>
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node.type === 'MemberExpression' &&
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node.object.name === 'exports' &&
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node.property.name === 'types';
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let defs;
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let types;
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traverse(ast, {
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CallExpression(path) {
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if (isDefaults(path.node)) {
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defs = path.node;
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}
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},
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AssignmentExpression(path) {
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if (path.node.left && isTypes(path.node.left)) {
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types = path.node;
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}
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}
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});
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fs.writeFileSync(path.join(__dirname, 'defaults.js'), defaultsTemplate(generate(defs, {}, ast).code));
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fs.writeFileSync(path.join(__dirname, 'types.js'), typesTemplate(generate(types, {}, ast).code));
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