[FORGE-1622] It would be good if Aesh had access to export variables

shell/impl/src/main/java/org/jboss/forge/addon/shell/ShellImpl.java

@@ -91,6 +91,8 @@ public ShellImpl(FileResource<?> initialResource, Settings settings, AddonRegist
                .historyFile(history)
                .aliasFile(alias)
                .exportFile(export)
+               .enableExport(true)
+               .setExportUsesSystemEnvironment(true)
                .interruptHook(new ForgeInterruptHook(registry));
       // If system property is set, force POSIXTerminal
       if (Boolean.getBoolean("org.jboss.forge.addon.shell.forcePOSIXTerminal"))

shell/test-harness/src/main/java/org/jboss/forge/addon/shell/test/impl/DefaultShellTest.java

@@ -396,6 +396,8 @@ public Settings getSettings()
                      .outputStreamError(new PrintStream(stderr))
                      .name("test")
                      .logging(true)
+                     .setExportUsesSystemEnvironment(true)
+                     .enableExport(true)
                      .ansi(false)
                      .terminal(new TestTerminal())
                      .create();

shell/tests/src/test/java/org/jboss/forge/addon/shell/command/ShowSystemEnvCommandTest.java

@@ -0,0 +1,87 @@
+/**
+ * Copyright 2014 Red Hat, Inc. and/or its affiliates.
+ *
+ * Licensed under the Eclipse Public License version 1.0, available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.jboss.forge.addon.shell.command;
+
+import org.jboss.arquillian.container.test.api.Deployment;
+import org.jboss.arquillian.junit.Arquillian;
+import org.jboss.forge.addon.resource.DirectoryResource;
+import org.jboss.forge.addon.resource.FileResource;
+import org.jboss.forge.addon.resource.Resource;
+import org.jboss.forge.addon.resource.ResourceFactory;
+import org.jboss.forge.addon.shell.test.ShellTest;
+import org.jboss.forge.addon.ui.result.Failed;
+import org.jboss.forge.addon.ui.result.Result;
+import org.jboss.forge.arquillian.AddonDependency;
+import org.jboss.forge.arquillian.Dependencies;
+import org.jboss.forge.arquillian.archive.ForgeArchive;
+import org.jboss.forge.furnace.repositories.AddonDependencyEntry;
+import org.jboss.forge.furnace.util.OperatingSystemUtils;
+import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import javax.inject.Inject;
+import java.util.concurrent.TimeUnit;
+
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.not;
+
+/**
+ * @author <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
+ */
+@RunWith(Arquillian.class)
+public class ShowSystemEnvCommandTest
+{
+   @Deployment
+   @Dependencies({
+            @AddonDependency(name = "org.jboss.forge.addon:ui"),
+            @AddonDependency(name = "org.jboss.forge.addon:projects"),
+            @AddonDependency(name = "org.jboss.forge.addon:shell-test-harness"),
+            @AddonDependency(name = "org.jboss.forge.addon:resources"),
+            @AddonDependency(name = "org.jboss.forge.furnace.container:cdi")
+   })
+   public static ForgeArchive getDeployment()
+   {
+      ForgeArchive archive = ShrinkWrap
+               .create(ForgeArchive.class)
+               .addBeansXML()
+               .addAsAddonDependencies(AddonDependencyEntry.create("org.jboss.forge.addon:ui"),
+                        AddonDependencyEntry.create("org.jboss.forge.addon:projects"),
+                        AddonDependencyEntry.create("org.jboss.forge.addon:shell-test-harness"),
+                        AddonDependencyEntry.create("org.jboss.forge.addon:resources"),
+                        AddonDependencyEntry.create("org.jboss.forge.furnace.container:cdi")
+               );
+
+      return archive;
+   }
+
+   @Inject
+   private ShellTest shellTest;
+
+   @Test
+   public void testShowSystemEnv() throws Exception
+   {
+
+      if (OperatingSystemUtils.isLinux() || OperatingSystemUtils.isOSX())
+      {
+         shellTest.execute("echo $PATH", 5, TimeUnit.SECONDS);
+         String out = shellTest.getStdOut();
+         Assert.assertThat(out, containsString("/usr"));
+      }
+      else
+      {
+         shellTest.execute("echo %PATH%", 5, TimeUnit.SECONDS);
+         String out = shellTest.getStdOut();
+         Assert.assertThat(out, containsString("System32"));
+      }
+   }
+}