--- /dev/null
+module.exports = logout
+
+var dezalgo = require("dezalgo")
+var log = require("npmlog")
+
+var npm = require("./npm.js")
+var mapToRegistry = require("./utils/map-to-registry.js")
+
+logout.usage = "npm logout [--registry] [--scope]"
+
+function logout (args, cb) {
+ npm.spinner.start()
+ cb = dezalgo(cb)
+
+ mapToRegistry("/", npm.config, function (err, uri, auth, normalized) {
+ if (err) return cb(err)
+
+ if (auth.token) {
+ log.verbose("logout", "clearing session token for", normalized)
+ npm.registry.logout(normalized, { auth: auth }, function (err) {
+ if (err) return cb(err)
+
+ npm.config.clearCredentialsByURI(normalized)
+ npm.spinner.stop()
+ npm.config.save("user", cb)
+ })
+ }
+ else if (auth.username || auth.password) {
+ log.verbose("logout", "clearing user credentials for", normalized)
+ npm.config.clearCredentialsByURI(normalized)
+ npm.spinner.stop()
+ npm.config.save("user", cb)
+ }
+ else {
+ cb(new Error(
+ "Not logged in to", normalized + ",", "so can't log out."
+ ))
+ }
+ })
+}