1.23.1

set-credentials-by-uri.js
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			var assert = require('assert')

			var toNerfDart = require('./nerf-dart.js')

			module.exports = setCredentialsByURI

			function setCredentialsByURI (uri, c) {
			assert(uri && typeof uri === 'string', 'registry URL is required')
			assert(c && typeof c === 'object', 'credentials are required')

			var nerfed = toNerfDart(uri)

			if (c.token) {
			this.set(nerfed + ':_authToken', c.token, 'user')
			this.del(nerfed + ':_password', 'user')
			this.del(nerfed + ':username', 'user')
			this.del(nerfed + ':email', 'user')
			this.del(nerfed + ':always-auth', 'user')
			} else if (c.username \|\| c.password \|\| c.email) {
			assert(c.username, 'must include username')
			assert(c.password, 'must include password')
			assert(c.email, 'must include email address')

			this.del(nerfed + ':_authToken', 'user')

			var encoded = new Buffer(c.password, 'utf8').toString('base64')
			this.set(nerfed + ':_password', encoded, 'user')
			this.set(nerfed + ':username', c.username, 'user')
			this.set(nerfed + ':email', c.email, 'user')

			if (c.alwaysAuth !== undefined) {
			this.set(nerfed + ':always-auth', c.alwaysAuth, 'user')
			} else {
			this.del(nerfed + ':always-auth', 'user')
			}
			} else {
			throw new Error('No credentials to set.')
			}
			}