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var npm = require('./npm.js')
var output = require('./utils/output.js')
module.exports = ping
ping.usage = 'npm ping\nping registry'
function ping (args, silent, cb) {
if (typeof cb !== 'function') {
cb = silent
silent = false
}
var registry = npm.config.get('registry')
if (!registry) return cb(new Error('no default registry set'))
var auth = npm.config.getCredentialsByURI(registry)
npm.registry.ping(registry, {auth: auth}, function (er, pong) {
if (!silent) output(JSON.stringify(pong))
cb(er, er ? null : pong)
})
}
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