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// npm explore <pkg>[@<version>]
// open a subshell to the package folder.
module.exports = explore
explore.usage = 'npm explore <pkg> [ -- <command>]'
explore.completion = require('./utils/completion/installed-shallow.js')
var npm = require('./npm.js')
var spawn = require('./utils/spawn')
var path = require('path')
var fs = require('graceful-fs')
var isWindows = require('./utils/is-windows.js')
var escapeExecPath = require('./utils/escape-exec-path.js')
var escapeArg = require('./utils/escape-arg.js')
var output = require('./utils/output.js')
var log = require('npmlog')
function explore (args, cb) {
if (args.length < 1 || !args[0]) return cb(explore.usage)
var p = args.shift()
var cwd = path.resolve(npm.dir, p)
var opts = {cwd: cwd, stdio: 'inherit'}
var shellArgs = []
if (args.length) {
if (isWindows) {
var execCmd = escapeExecPath(args.shift())
var execArgs = [execCmd].concat(args.map(escapeArg))
opts.windowsVerbatimArguments = true
shellArgs = ['/d', '/s', '/c'].concat(execArgs)
} else {
shellArgs = ['-c', args.map(escapeArg).join(' ').trim()]
}
}
var sh = npm.config.get('shell')
fs.stat(cwd, function (er, s) {
if (er || !s.isDirectory()) {
return cb(new Error(
"It doesn't look like " + p + ' is installed.'
))
}
if (!shellArgs.length) {
output(
'\nExploring ' + cwd + '\n' +
"Type 'exit' or ^D when finished\n"
)
}
log.silly('explore', {sh, shellArgs, opts})
var shell = spawn(sh, shellArgs, opts)
shell.on('close', function (er) {
// only fail if non-interactive.
if (!shellArgs.length) return cb()
cb(er)
})
})
}