module.exports = exports = search var npm = require("./npm.js") , registry = npm.registry , columnify = require('columnify') search.usage = "npm search [some search terms ...]" search.completion = function (opts, cb) { var compl = {} , partial = opts.partialWord , ipartial = partial.toLowerCase() , plen = partial.length // get the batch of data that matches so far. // this is an example of using npm.commands.search programmatically // to fetch data that has been filtered by a set of arguments. search(opts.conf.argv.remain.slice(2), true, function (er, data) { if (er) return cb(er) Object.keys(data).forEach(function (name) { data[name].words.split(" ").forEach(function (w) { if (w.toLowerCase().indexOf(ipartial) === 0) { compl[partial + w.substr(plen)] = true } }) }) cb(null, Object.keys(compl)) }) } function search (args, silent, staleness, cb) { if (typeof cb !== "function") cb = staleness, staleness = 600 if (typeof cb !== "function") cb = silent, silent = false var searchopts = npm.config.get("searchopts") , searchexclude = npm.config.get("searchexclude") if (typeof searchopts !== "string") searchopts = "" searchopts = searchopts.split(/\s+/) if (typeof searchexclude === "string") { searchexclude = searchexclude.split(/\s+/) } else searchexclude = [] var opts = searchopts.concat(args).map(function (s) { return s.toLowerCase() }).filter(function (s) { return s }) searchexclude = searchexclude.map(function (s) { return s.toLowerCase() }) getFilteredData( staleness, opts, searchexclude, function (er, data) { // now data is the list of data that we want to show. // prettify and print it, and then provide the raw // data to the cb. if (er || silent) return cb(er, data) console.log(prettify(data, args)) cb(null, data) }) } function getFilteredData (staleness, args, notArgs, cb) { registry.get( "/-/all", staleness, false , true, function (er, data) { if (er) return cb(er) return cb(null, filter(data, args, notArgs)) }) } function filter (data, args, notArgs) { // data={:{package data}} return Object.keys(data).map(function (d) { return data[d] }).filter(function (d) { return typeof d === "object" }).map(stripData).map(getWords).filter(function (data) { return filterWords(data, args, notArgs) }).reduce(function (l, r) { l[r.name] = r return l }, {}) } function stripData (data) { return { name: data.name , description: npm.config.get("description") ? data.description : "" , maintainers: (data.maintainers || []).map(function (m) { return "=" + m.name }) , url: !Object.keys(data.versions || {}).length ? data.url : null , keywords: data.keywords || [] , version: Object.keys(data.versions || {})[0] || [] , time: data.time && data.time.modified && (new Date(data.time.modified).toISOString() .split("T").join(" ") .replace(/:[0-9]{2}\.[0-9]{3}Z$/, "")) .slice(0, -5) // remove time || "prehistoric" } } function getWords (data) { data.words = [ data.name ] .concat(data.description) .concat(data.maintainers) .concat(data.url && ("<" + data.url + ">")) .concat(data.keywords) .map(function (f) { return f && f.trim && f.trim() }) .filter(function (f) { return f }) .join(" ") .toLowerCase() return data } function filterWords (data, args, notArgs) { var words = data.words for (var i = 0, l = args.length; i < l; i ++) { if (!match(words, args[i])) return false } for (var i = 0, l = notArgs.length; i < l; i ++) { if (match(words, notArgs[i])) return false } return true } function match (words, arg) { if (arg.charAt(0) === "/") { arg = arg.replace(/\/$/, "") arg = new RegExp(arg.substr(1, arg.length - 1)) return words.match(arg) } return words.indexOf(arg) !== -1 } function prettify (data, args) { var searchsort = (npm.config.get("searchsort") || "NAME").toLowerCase() , sortField = searchsort.replace(/^\-+/, "") , searchRev = searchsort.charAt(0) === "-" , truncate = !npm.config.get("long") if (Object.keys(data).length === 0) { return "No match found for "+(args.map(JSON.stringify).join(" ")) } var lines = Object.keys(data).map(function (d) { // strip keyname return data[d] }).map(function(dat) { dat.author = dat.maintainers delete dat.maintainers dat.date = dat.time delete dat.time return dat }).map(function(dat) { // split keywords on whitespace or , if (typeof dat.keywords === "string") { dat.keywords = dat.keywords.split(/[,\s]+/) } if (Array.isArray(dat.keywords)) { dat.keywords = dat.keywords.join(' ') } // split author on whitespace or , if (typeof dat.author === "string") { dat.author = dat.author.split(/[,\s]+/) } if (Array.isArray(dat.author)) { dat.author = dat.author.join(' ') } return dat }) lines.sort(function(a, b) { var aa = a[sortField].toLowerCase() , bb = b[sortField].toLowerCase() return aa === bb ? 0 : aa < bb ? -1 : 1 }) if (searchRev) lines.reverse() var columns = npm.config.get("description") ? ["name", "description", "author", "date", "version", "keywords"] : ["name", "author", "date", "version", "keywords"] var output = columnify(lines, { include: columns , truncate: truncate , config: { name: { maxWidth: 40, truncate: false, truncateMarker: '' } , description: { maxWidth: 60 } , author: { maxWidth: 20 } , date: { maxWidth: 11 } , version: { maxWidth: 11 } , keywords: { maxWidth: Infinity } } }) output = trimToMaxWidth(output) output = highlightSearchTerms(output, args) return output } var colors = [31, 33, 32, 36, 34, 35 ] , cl = colors.length function addColorMarker (str, arg, i) { var m = i % cl + 1 , markStart = String.fromCharCode(m) , markEnd = String.fromCharCode(0) if (arg.charAt(0) === "/") { //arg = arg.replace(/\/$/, "") return str.replace( new RegExp(arg.substr(1, arg.length - 1), "gi") , function (bit) { return markStart + bit + markEnd } ) } // just a normal string, do the split/map thing var pieces = str.toLowerCase().split(arg.toLowerCase()) , p = 0 return pieces.map(function (piece, i) { piece = str.substr(p, piece.length) var mark = markStart + str.substr(p+piece.length, arg.length) + markEnd p += piece.length + arg.length return piece + mark }).join("") } function colorize (line) { for (var i = 0; i < cl; i ++) { var m = i + 1 var color = npm.color ? "\033["+colors[i]+"m" : "" line = line.split(String.fromCharCode(m)).join(color) } var uncolor = npm.color ? "\033[0m" : "" return line.split("\u0000").join(uncolor) } function getMaxWidth() { try { var tty = require("tty") , stdout = process.stdout , cols = !tty.isatty(stdout.fd) ? Infinity : process.stdout.getWindowSize()[0] cols = (cols == 0) ? Infinity : cols } catch (ex) { cols = Infinity } return cols } function trimToMaxWidth(str) { var maxWidth = getMaxWidth() return str.split('\n').map(function(line) { return line.slice(0, maxWidth) }).join('\n') } function highlightSearchTerms(str, terms) { terms.forEach(function (arg, i) { str = addColorMarker(str, arg, i) }) return colorize(str).trim() }