Add ping command

Author: michaelnisi

lib/ping.js

@@ -0,0 +1,26 @@
+
+module.exports = ping
+
+var url = require("url")
+
+function ping (uri, cb) {
+  var c = this.conf.getCredentialsByURI(uri)
+  if (!c || !c.auth) {
+    var er = new Error("Must be logged in to ping the registry")
+    er.code = "ENEEDAUTH"
+    return cb(er)
+  }
+  var parsed = url.parse(uri)
+  parsed.auth = c.username + ":" + escape(c.password)
+  uri = url.resolve(parsed, "/-/ping?write=true")
+  this.get(uri, null, function (er, fullData) {
+    if (er) {
+      cb(er)
+    } else if (fullData) {
+      console.log(fullData)
+      cb(null, fullData)
+    } else {
+      cb(new Error("No data received"))
+    }
+  })
+}

test/ping.js

@@ -0,0 +1,42 @@
+var tap = require("tap")
+
+var server = require("./lib/server.js")
+var common = require("./lib/common.js")
+
+var DEP_USER = "username"
+var HOST = "localhost"
+
+var nerfed = "//" + HOST + ":" + server.port + "/:"
+
+var configuration = {}
+configuration[nerfed + "username"]  = DEP_USER
+configuration[nerfed + "_password"] = new Buffer("%1234@asdf%").toString("base64")
+configuration[nerfed + "email"]     = "[email protected]"
+
+var client = common.freshClient(configuration)
+
+tap.test("ping registry", function (t) {
+  t.plan(3)
+  server.expect("GET", "/-/ping?write=true", function (req, res) {
+    t.equal(req.method, "GET")
+    res.statusCode = 200
+    res.json({
+      ok: true
+    , host: HOST
+    , peer: HOST
+    , username: DEP_USER
+    })
+  })
+
+  client.ping(common.registry, function (er, found) {
+    t.ifError(er, "no errors")
+    var wanted = {
+      ok: true
+    , host: HOST
+    , peer: HOST
+    , username: DEP_USER
+    }
+    t.same(found, wanted)
+    t.end()
+  })
+})