Fix RIDER-57482: enable common Rider build throttling (#457)

* Fix RIDER-57482: enable common Rider build throttling

Rider cannot run several builds simultaneously, so there's a special
component that orchestrates the build throttling in pre-launch tasks.
The plugin should call this component when scheduling a build task,
otherwise, the builds started from plugin won't work well inside of a
compound task.

* Update plugin.xml

Co-authored-by: Maarten Balliauw <maarten@maartenballiauw.be>

PluginsAndFeatures/azure-toolkit-for-intellij/rider/resources/META-INF/plugin.xml

@@ -26,6 +26,7 @@
         <ul>
           <li>Compatibility with Rider 2021.1 EAP8</li>
           <li>Allow publishing to App Service with kind "API" (<a href="https://github.com/JetBrains/azure-tools-for-intellij/issues/149">#149</a>)</li>
+          <li>Enable build-throttling and support compound run configurations (<a href="https://youtrack.jetbrains.com/issue/RIDER-57482">RIDER-57482</a>)</li>
         </ul>
         <h4>Fixed bugs:</h4>
         <ul>

PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/buildTasks/BuildFunctionsProjectBeforeRunTaskProvider.kt

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2019-2020 JetBrains s.r.o.
+ * Copyright (c) 2019-2021 JetBrains s.r.o.
  * <p/>
  * All rights reserved.
  * <p/>
@@ -34,6 +34,7 @@ import com.jetbrains.rd.platform.util.application
 import com.jetbrains.rd.platform.util.getComponent
 import com.jetbrains.rider.build.BuildHost
 import com.jetbrains.rider.build.BuildParameters
+import com.jetbrains.rider.build.tasks.BuildTaskThrottler
 import com.jetbrains.rider.model.BuildResultKind
 import com.jetbrains.rider.model.BuildTarget
 import org.jetbrains.plugins.azure.RiderAzureBundle.message
@@ -84,17 +85,8 @@ class BuildFunctionsProjectBeforeRunTaskProvider : BeforeRunTaskProvider<BuildFu
         }
         if (!buildHost.ready.value)
             return false
-        val finished = Semaphore()
-        finished.down()
-        var result = false
-        // when false returned build was not started because another is in progress, we should not run task
-        application.invokeLater {
-            result = buildHost.requestBuild(BuildParameters(BuildTarget(), selectedProjectsForBuild)) {
-                result = it == BuildResultKind.Successful || it == BuildResultKind.HasWarnings
-                finished.up()
-            }
-        }
-        finished.waitFor()
-        return result
+
+        val throttler = BuildTaskThrottler.getInstance(project)
+        return throttler.runBuildWithThrottling(BuildParameters(BuildTarget(), selectedProjectsForBuild)).get()
     }
 }