// npm edit <pkg>

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// open the package folder in the $EDITOR

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module.exports = edit

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edit.usage = 'npm edit <pkg>[/<subpkg>...]'

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edit.completion = require('./utils/completion/installed-shallow.js')

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var npm = require('./npm.js')

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var path = require('path')

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var fs = require('graceful-fs')

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var editor = require('editor')

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var noProgressTillDone = require('./utils/no-progress-while-running').tillDone

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function edit (args, cb) {

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var p = args[0]

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if (args.length !== 1 || !p) return cb(edit.usage)

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var e = npm.config.get('editor')

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if (!e) {

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return cb(new Error(

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"No editor set. Set the 'editor' config, or $EDITOR environ."

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))

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}

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p = p.split('/')

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// combine scoped parts

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.reduce(function (parts, part) {

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if (parts.length === 0) {

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return [part]

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}

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var lastPart = parts[parts.length - 1]

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// check if previous part is the first part of a scoped package

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if (lastPart[0] === '@' && !lastPart.includes('/')) {

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parts[parts.length - 1] += '/' + part

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} else {

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parts.push(part)

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}

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return parts

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}, [])

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.join('/node_modules/')

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.replace(/(\/node_modules)+/, '/node_modules')

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var f = path.resolve(npm.dir, p)

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fs.lstat(f, function (er) {

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if (er) return cb(er)

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editor(f, { editor: e }, noProgressTillDone(function (er) {

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if (er) return cb(er)

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npm.commands.rebuild(args, cb)

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}))

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})

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}

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