| // prune extraneous packages. |
| |
| module.exports = prune |
| |
| prune.usage = "npm prune" |
| |
| var readInstalled = require("read-installed") |
| , npm = require("./npm.js") |
| , path = require("path") |
| , readJson = require("read-package-json") |
| , log = require("npmlog") |
| |
| prune.completion = require("./utils/completion/installed-deep.js") |
| |
| function prune (args, cb) { |
| var jsonFile = path.resolve(npm.dir, "..", "package.json" ) |
| readJson(jsonFile, log.warn, function (er, packageData) { |
| if (er) return cb(er) |
| readInstalled(npm.prefix, npm.config.get("depth"), function (er, data) { |
| if (er) return cb(er) |
| if (npm.config.get("production")) { |
| Object.keys(packageData.devDependencies || {}).forEach(function (k) { |
| if (data.dependencies[k]) data.dependencies[k].extraneous = true |
| }) |
| } |
| prune_(args, data, cb) |
| }) |
| }) |
| } |
| |
| function prune_ (args, data, cb) { |
| npm.commands.unbuild(prunables(args, data, []), cb) |
| } |
| |
| function prunables (args, data, seen) { |
| var deps = data.dependencies || {} |
| return Object.keys(deps).map(function (d) { |
| if (typeof deps[d] !== "object" |
| || seen.indexOf(deps[d]) !== -1) return null |
| seen.push(deps[d]) |
| if (deps[d].extraneous |
| && (args.length === 0 || args.indexOf(d) !== -1)) { |
| var extra = deps[d] |
| delete deps[d] |
| return extra.path |
| } |
| return prunables(args, deps[d], seen) |
| }).filter(function (d) { return d !== null }) |
| .reduce(function FLAT (l, r) { |
| return l.concat(Array.isArray(r) ? r.reduce(FLAT,[]) : r) |
| }, []) |
| } |