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module.exports = fileCompletion
var mkdir = require("mkdirp")
, path = require("path")
, fs = require("graceful-fs")
, glob = require("glob")
function fileCompletion (root, req, depth, cb) {
if (typeof cb !== "function") cb = depth, depth = Infinity
mkdir(root, function (er) {
if (er) return cb(er)
// can be either exactly the req, or a descendent
var pattern = root + "/{" + req + "," + req + "/**/*}"
, opts = { mark: true, dot: true, maxDepth: depth }
glob(pattern, opts, function (er, files) {
if (er) return cb(er)
return cb(null, (files || []).map(function (f) {
return path.join(req, f.substr(root.length + 1)
.substr((f === req ? path.dirname(req)
: req).length)
.replace(/^\//, ""))
}))
})
})
}
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