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module.exports = exports = search
var npm = require("../npm")
, registry = require("./utils/registry")
, semver = require("semver")
, output = require("./utils/output")
, log = require("./utils/log")
search.usage = "npm search [some search terms ...]"
search.completion = function (args, index, cb) {
var compl = []
, getCompletions = require("./utils/completion/get-completions")
, name = (args.length + 1 === index) && args[args.length - 1] || ""
, priors = name ? args.slice(0, args.length - 1) : args
// 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(priors, true, 3600, function (er, data) {
if (er) return cb(er)
Object.keys(data).forEach(function (name) {
compl.push.apply(compl, [name].concat(data[name].words))
})
var last = null
compl = compl.sort(strcmp).filter(function (c) {
if (args.indexOf(c) !== -1) return false
var r = c !== last
last = c
return r
})
var matches = getCompletions(name || "", compl)
if (name && !name.match(/^=/)) {
matches = matches.concat(getCompletions("="+name, compl))
}
cb(null, matches)
})
}
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) return cb_(er)
function cb (er) { return cb_(er, data) }
if (silent) return cb()
output.write(npm.config.get("outfd"), prettify(data, args), cb)
})
}
function getFilteredData (staleness, args, notArgs, cb) {
registry.get("/", null, staleness, function (er, data) {
if (er) return cb(er)
return cb(null, filter(data, args, notArgs))
})
}
function filter (data, args, notArgs) {
// data={<name>:{package data}}
return Object.keys(data).map(function (d) {
return data[d]
}).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 || []
}
}
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 (words.indexOf(args[i]) === -1) {
//console.error("fail %j", [args[i], words])
return false
}
}
for (var i = 0, l = notArgs.length; i < l; i ++) {
if (words.indexOf(notArgs[i]) !== -1) return false
}
return true
}
function prettify (data, args) {
try {
var stdio = process.binding("stdio")
, cols = stdio.isatty(stdio.stdoutFD) ?
( stdio.getColumns ? stdio.getColumns()
: stdio.getWindowSize ? stdio.getWindowSize()[1]
: Infinity )
: Infinity
} catch (ex) { cols = Infinity }
// name, desc, author, keywords
var longest = []
, spaces
, maxLen = [20, 80, 25]
return Object.keys(data).map(function (d) {
return data[d]
}).map(function (data) {
// turn a pkg data into a string
// [name,who,desc,targets,keywords] tuple
// also set longest to the longest name
if (typeof data.keywords === "string") {
data.keywords = data.keywords.split(/[,\s]+/)
}
if (!Array.isArray(data.keywords)) data.keywords = []
var l = [ data.name
, data.description || ""
, data.maintainers.join(" ")
, (data.keywords || []).join(" ")
]
l.forEach(function (s, i) {
longest[i] = Math.min(maxLen[i] || Infinity
,Math.max(longest[i] || 0, s.length))
l[i] = l[i].replace(/\s+/g, " ")
})
return l
}).map(function (line) {
return line.map(function (s, i) {
spaces = spaces || longest.map(function (n) {
return new Array(n + 2).join(" ")
})
return (s + spaces[i].substr(s.length))
}).join(" ").substr(0, cols)
}).sort(function (a, b) {
return a === b ? 0 : a > b ? 1 : -1
}).map(function (line) {
// colorize!
args.forEach(function (arg, i) {
line = addColorMarker(line, arg, i)
})
return colorize(line)
}).join("\n")
}
var colors = [36, 32, 33, 31, 35 ]
, cl = colors.length
function addColorMarker (str, arg, i) {
var m = i % cl + 1
, markStart = String.fromCharCode(m)
, markEnd = String.fromCharCode(0)
, pieces = str.toLowerCase().split(arg)
, 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("")
return str.split(arg).join(mark)
}
function colorize (line) {
for (var i = 0; i < cl; i ++) {
var m = i + 1
line = line.split(String.fromCharCode(m)).join("\033["+colors[i]+"m")
}
return line.split("\u0000").join("\033[0m")
}
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