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module.exports = loadPackageDefaults
var path = require("path")
, log = require("./log.js")
, find = require("./find.js")
, asyncMap = require("slide").asyncMap
, npm = require("../npm.js")
, fs = require("graceful-fs")
function loadPackageDefaults (pkg, pkgDir, cb) {
if (!pkg) return cb(new Error("no package to load defaults from!"))
if (typeof pkgDir === "function") {
cb = pkgDir
pkgDir = path.join(npm.dir, pkg.name, pkg.version, "package")
}
if (!pkgDir) pkgDir = "."
if (pkg._defaultsLoaded) return cb(null, pkg)
pkg._defaultsLoaded = true
asyncMap
( [pkg]
, function (pkg, cb) { log.verbose(pkg._id, "loadDefaults", cb) }
, readDefaultBins(pkgDir)
, readDefaultMans(pkgDir)
, function (er) { cb(er, pkg) } )
}
function objectForEach (obj, fn) {
Object.keys(obj).forEach(function (k) {
fn(obj[k])
})
}
function readDefaultMans (pkgDir) { return function (pkg, cb) {
var man = pkg.directories && pkg.directories.man
, manDir = path.join(pkgDir, man)
if (pkg.man && !Array.isArray(pkg.man)) pkg.man = [pkg.man]
if (pkg.man || !man) return cb(null, pkg)
find(manDir, /\.[0-9]+(\.gz)?$/, function (er, filenames) {
if (er) return cb(er)
var cut = pkgDir === "." ? 0 : pkgDir.length + 1
pkg.man = (filenames || []).map(function (filename) {
return filename.substr(cut)
}).filter(function (f) {
return !f.match(/(^|\/)\./)
})
cb(null,pkg)
})
}}
function readDefaultBins (pkgDir) { return function (pkg, cb) {
var bin = pkg.directories && pkg.directories.bin
if (pkg.bins) pkg.bin = pkg.bins, delete pkg.bins
if (pkg.bin || !bin) return cb(null, pkg)
log.verbose("linking default bins", pkg._id)
var binDir = path.join(pkgDir, bin)
pkg.bin = {}
find(binDir, function (er, filenames) {
if (er || !filenames || !filenames.length) return cb(er, pkg)
var cut = pkgDir === "." ? 0 : pkgDir.length + 1
, binCut = pkgDir === "." ? bin.length - 1 : binDir.length + 1
filenames.filter(function (f) {
return !f.substr(binCut).match(/(^|\/)\./)
}).forEach(function (filename) {
var key = filename.substr(binCut)
.replace(/\.(js|node)$/, '')
, val = filename.substr(cut)
if (key.length && val.length) pkg.bin[key] = val
})
log.silly(pkg.bin, pkg._id+".bin")
cb(null, pkg)
})
}}