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website/node_modules/npm/lib/logout.js

@@ -0,0 +1,43 @@
+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=<url>] [--scope=<@scope>]'
+
+function afterLogout (normalized, cb) {
+  var scope = npm.config.get('scope')
+
+  if (scope) npm.config.del(scope + ':registry')
+
+  npm.config.clearCredentialsByURI(normalized)
+  npm.config.save('user', cb)
+}
+
+function logout (args, cb) {
+  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)
+
+        afterLogout(normalized, cb)
+      })
+    } else if (auth.username || auth.password) {
+      log.verbose('logout', 'clearing user credentials for', normalized)
+
+      afterLogout(normalized, cb)
+    } else {
+      cb(new Error(
+        'Not logged in to', normalized + ',', "so can't log out."
+      ))
+    }
+  })
+}