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120 lines (105 loc) · 2.53 KB
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'use strict';
var path = require('path');
var archy = require('archy');
var log = require('log-utils');
var extend = require('extend-shallow');
var regex = /^(base|assemble|generate|templates|updater|verb|toolkit)-/;
var core = /^(base|(assemble|generate|templates|updater|verb|toolkit)(-.*?)?)$/;
/**
* Render a dependency tree with unicode pipes using
* [archy](https://github.com/substack/node-archy)
*
* ```js
* var tree = toTree({
* depth: 3,
* stylize: stylize,
* filter: function(key) {
* return regex.test(key);
* }
* });
* console.log(tree);
* ```
*/
function toTree(options) {
options = options || {};
var cwd = options.cwd || process.cwd();
var styles = options.stylize || stylize;
function buildTree(dir, child) {
child = child || dir;
var pkgPath = path.resolve(dir, 'package.json');
var pkg = require(pkgPath);
var name = pkg.name;
var keys = Object.keys(pkg.dependencies || {});
var tree = {label: styles(name, pkg), nodes: []};
var deps = keys.filter(function(key) {
return filter(options)(key, pkg);
});
var len = deps.length;
var idx = -1;
while (++idx < len) {
tree.nodes.push(buildTree(path.resolve(child, 'node_modules', deps[idx]), child));
}
return tree;
}
return archy(buildTree(cwd));
}
/**
* Filter keys
*/
function filter(options) {
var opts = extend({}, options);
if (typeof opts.filter === 'function') {
return opts.filter;
}
if (typeof opts.filter === 'string') {
opts.filter = new RegExp(opts.filter);
}
if (opts.filter instanceof RegExp) {
return function(key) {
return opts.filter.test(key);
};
}
return function(key, pkg) {
if (/-handle/.test(key)) {
return false;
}
if (core.test(pkg.name) && regex.test(key)) {
return true;
}
return core.test(key);
}
}
/**
* Stylize keys
*/
function stylize(name, options) {
if (options.nocolor === true || options.color === false || options.markdown === true) {
return name;
}
var match = /^(assemble|base|generate|templates|updater?|verb)/.exec(name);
switch (match && match[1]) {
case 'base':
name = log.magenta(name);
break;
case 'assemble':
name = log.cyan(name);
break;
case 'generate':
name = log.green(name);
break;
case 'templates':
name = log.yellow(name);
break;
case 'verb':
name = log.bold(log.blue(name));
break;
default: {
break;
}
}
return name;
}
/**
* Expose `toTree`
*/
module.exports = toTree;