92 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			92 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
'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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