Merge branch 'promiseProcess' into 'master'

Promise based run when using in a "library-ish" mode

See merge request !2

bin/greenlock.js

@@ -103,6 +103,8 @@ cli.main(function(_, options) {
       return;
     }
 
-    require('../').run(args);
+    require('../').run(args).then(function (status) {
+      process.exit(status);
+    });
   });
 });

index.js

@@ -84,13 +84,13 @@ module.exports.run = function (args) {
 
   if (servers) {
     if (args.tlsSni01Port) {
-      servers = servers.startServers(
+      servers.startServers(
         [], args.tlsSni01Port
       , { debug: args.debug, httpsOptions: le.httpsOptions }
       );
     }
     else {
-      servers = servers.startServers(
+      servers.startServers(
         args.http01Port || [80], []
       , { debug: args.debug }
       );
@@ -98,7 +98,7 @@ module.exports.run = function (args) {
   }
 
   // Note: can't use args directly as null values will overwrite template values
-  le.register({
+  return le.register({
     debug: args.debug
   , email: args.email
   , agreeTos: args.agreeTos
@@ -117,10 +117,6 @@ module.exports.run = function (args) {
     console.log("Renewing them now");
     return certs._renewing;
   }).then(function (certs) {
-    if (servers) {
-      servers.closeServers();
-    }
-
     console.log("");
     console.log("Got certificate(s) for " + certs.altnames.join(', '));
     console.log("\tIssued at " + new Date(certs.issuedAt).toISOString() + "");
@@ -147,12 +143,18 @@ module.exports.run = function (args) {
     );
     console.log("");
 
-    process.exit(0);
+    if (servers) {
+      return servers.closeServers({ debug: args.debug }).then(function() {
+        return 0;
+      });
+    }
+
+    return 0;
   }, function (err) {
     console.error('[Error]: greenlock-cli');
     console.error(err.stack || new Error('get stack').stack);
 
-    process.exit(1);
+    return 1;
   });
 
 };

lib/servers.js

@@ -77,11 +77,27 @@ module.exports.create = function (challenge) {
 
     }
 
-  , closeServers: function () {
-      servers._servers.forEach(function (server) {
-        server.close();
+  , closeServers: function (opts) {
+      opts = opts || {};
+      return new Promise(function (done) {
+        var closedServers = 0;
+        var serversToClose = servers._servers.length;
+        if (0 === serversToClose) {
+          done();
+        }
+
+        servers._servers.forEach(function (server) {
+          server.close(function () {
+            if (serversToClose === ++closedServers) {
+              if (opts.debug) {
+                console.info('Closed all servers');
+              }
+              servers._servers = [];
+              done();
+            }
+          });
+        });
       });
-      servers._servers = [];
     }
   };