[FIXED JENKINS-16652] Use UpdateSite.Plugin.deploy from PluginManager.doUploadPlugin.

changelog.html

@@ -58,6 +58,9 @@ Upcoming changes</a>
   <li class=bug>
     NPE from <code>Run.getDynamic</code>.
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-17935">issue 17935</a>)
+  <li class=bug>
+    Reworked Upload Plugin gesture to work more like installation from an update center, and in particular to support dynamic load.
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-16652">issue 16652</a>)
   <li class=bug>
     Errors in <code>init.groovy</code> halted startup; changed to just log a warning.
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-17933">issue 17933</a>)

core/src/main/java/hudson/PluginManager.java

@@ -732,25 +732,23 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
             }
 
             // first copy into a temporary file name
-            File t = File.createTempFile("uploaded", "jp_",rootDir);
-            fileItem.write(t); // rename all new plugins to *.jpi
+            File t = File.createTempFile("uploaded", ".jpi");
+            t.deleteOnExit();
+            fileItem.write(t);
             fileItem.delete();
 
             final String baseName = identifyPluginShortName(t);
 
-            // and move the temp file into a proper name
-            new File(rootDir, baseName + ".hpi").delete(); // don't keep confusing legacy *.hpi
-            new File(rootDir, baseName + ".jpi").delete(); // rename can fail if the file already exists
-            t.renameTo(new File(rootDir, baseName + ".jpi"));
-
-            PluginWrapper existing = getPlugin(baseName);
-            if (existing!=null && existing.isBundled){
-                existing.doPin();
-            }
-
             pluginUploaded = true;
 
-            return new HttpRedirect(".");
+            // Now create a dummy plugin that we can dynamically load (the InstallationJob will force a restart if one is needed):
+            JSONObject cfg = new JSONObject().
+                    element("name", baseName).
+                    element("version", "0"). // unused but mandatory
+                    element("url", t.toURI().toString()).
+                    element("dependencies", new JSONArray());
+            new UpdateSite(UpdateCenter.ID_UPLOAD, null).new Plugin(UpdateCenter.ID_UPLOAD, cfg).deploy(true);
+            return new HttpRedirect("../updateCenter");
         } catch (IOException e) {
             throw e;
         } catch (Exception e) {// grrr. fileItem.write throws this

core/src/main/java/hudson/model/UpdateCenter.java

@@ -89,6 +89,8 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 import javax.annotation.CheckForNull;
 import org.acegisecurity.context.SecurityContextHolder;
+import org.kohsuke.accmod.Restricted;
+import org.kohsuke.accmod.restrictions.NoExternalUse;
 import org.kohsuke.stapler.export.Exported;
 import org.kohsuke.stapler.export.ExportedBean;
 import org.kohsuke.stapler.interceptor.RequirePOST;
@@ -119,6 +121,9 @@ public class UpdateCenter extends AbstractModelObject implements Saveable, OnMas
      * @since 1.483
      */
     public static final String ID_DEFAULT = "default";
+
+    @Restricted(NoExternalUse.class)
+    public static final String ID_UPLOAD = "_upload";
 	
     /**
      * {@link ExecutorService} that performs installation.
@@ -1012,6 +1017,9 @@ public class UpdateCenter extends AbstractModelObject implements Saveable, OnMas
         }
 
         public void run() {
+            if (ID_UPLOAD.equals(site.getId())) {
+                return;
+            }
             LOGGER.fine("Doing a connectivity check");
             try {
                 String connectionCheckUrl = site.getConnectionCheckUrl();