Build: Remove rest tests on archive distribution projects (elastic#28952)

This commit removes running rest tests on the full zip and tar
distributions in favor of doing a simple extraction check like is done
for rpm and deb files. The rest tests are still run on the integ test
zip, at least for now (this should eventually be moved out to a different
location).

Author: rjernst

distribution/archives/build.gradle

@@ -21,6 +21,7 @@ import org.apache.tools.ant.taskdefs.condition.Os
 import org.apache.tools.ant.filters.FixCrLfFilter
 import org.elasticsearch.gradle.BuildPlugin
 import org.elasticsearch.gradle.EmptyDirTask
+import org.elasticsearch.gradle.LoggedExec
 import org.elasticsearch.gradle.MavenFilteringHack
 import org.elasticsearch.gradle.plugin.PluginBuildPlugin
 
@@ -125,19 +126,39 @@ subprojects {
   artifacts {
     'default' buildDist
   }
+
+  // sanity checks if a archives can be extracted
+  File extractionDir = new File(buildDir, 'extracted')
+  task testExtraction(type: LoggedExec) {
+    dependsOn buildDist
+    doFirst {
+      project.delete(extractionDir)
+      extractionDir.mkdirs()
+    }
+  }
+  if (project.name.contains('zip')) {
+    testExtraction {
+      onlyIf { new File('/bin/unzip').exists() || new File('/usr/bin/unzip').exists() || new File('/usr/local/bin/unzip').exists() }
+      commandLine 'unzip', "${-> buildDist.outputs.files.singleFile}", '-d', extractionDir
+    }
+  } else { // tar
+    testExtraction {
+      onlyIf { new File('/bin/tar').exists() || new File('/usr/bin/tar').exists() || new File('/usr/local/bin/tar').exists() }
+      commandLine 'tar', '-xvzf', "${-> buildDist.outputs.files.singleFile}", '-C', extractionDir
+    }
+  }
+  check.dependsOn testExtraction
 }
 
 /*****************************************************************************
  *                            Rest test config                               *
  *****************************************************************************/
-subprojects {
+configure(subprojects.findAll { it.name == 'integ-test-zip' }) {
   apply plugin: 'elasticsearch.standalone-rest-test'
   apply plugin: 'elasticsearch.rest-test'
 
-  if (project.name == 'integ-test-zip') {
-    integTest {
-      includePackaged true
-    }
+  integTest {
+    includePackaged true
   }
 
   integTestCluster {