Generate a normal copy when installing a symlink of a directory

Author: spilist

lib/instance_agent/plugins/codedeploy/installer.rb

@@ -64,7 +64,7 @@ def generate_instructions(application_specification)
               fi.source)
 
               log(:debug, "generating instructions for copying #{fi.source} to #{fi.destination}")
-              if File.directory?(absolute_source_path)
+              if File.directory?(absolute_source_path) && !File.symlink?(absolute_source_path)
                 fill_in_missing_ancestors(i, fi.destination)
                 generate_directory_copy(i, absolute_source_path, fi.destination)
               else
@@ -108,7 +108,8 @@ def generate_directory_copy(i, absolute_source_path, destination)
             absolute_source_path = absolute_source_path.force_encoding("UTF-8");
             absolute_entry_path = File.join(absolute_source_path, entry)
             entry_destination = File.join(destination, entry)
-            if File.directory?(absolute_entry_path)
+
+            if File.directory?(absolute_entry_path) && !File.symlink?(absolute_entry_path)
               generate_directory_copy(i, absolute_entry_path, entry_destination)
             else
               generate_normal_copy(i, absolute_entry_path, entry_destination)

test/instance_agent/plugins/codedeploy/installer_test.rb

@@ -255,6 +255,93 @@ class CodeDeployPluginInstallerTest < InstanceAgentTestCase
 
         end # "regular files"
 
+        context "symbolic links" do
+
+          setup do
+            @app_spec
+              .stubs(:files)
+              .returns([stub(:source => "src1",
+                             :destination => "dst1")])
+
+            File.stubs(:directory?).returns(false)
+            File.stubs(:directory?).with("dst1").returns(true)
+
+            File.stubs(:exists?).returns(false)
+            File.stubs(:exists?).with("dst1").returns(true)
+
+            @command_sequence = sequence("commands")
+          end
+
+          should "generate a copy command for the source file if it is a symbolic link of a regular file" do
+            File.stubs(:directory?).with("deploy-archive-dir/src1").returns(false)
+            File.stubs(:symlink?).with("deploy-archive-dir/src1").returns(true)
+
+            @instruction_builder
+              .expects(:copy)
+              .with("deploy-archive-dir/src1", "dst1/src1")
+              .in_sequence(@command_sequence)
+
+            @installer.install(@deployment_group_id, @app_spec)
+          end
+
+          should "generate a copy command instead of a mkdir command for the source file if it is a symbolic link of a directory" do
+            File.stubs(:directory?).with("deploy-archive-dir/src1").returns(true)
+            File.stubs(:symlink?).with("deploy-archive-dir/src1").returns(true)
+
+            @instruction_builder
+              .expects(:mkdir)
+              .with("dst1/src1")
+              .never
+            @instruction_builder
+              .expects(:copy)
+              .with("deploy-archive-dir/src1", "dst1/src1")
+              .in_sequence(@command_sequence)
+
+            @installer.install(@deployment_group_id, @app_spec)
+          end
+
+          should "generate a copy command if the file inside the source directory is a symbolic link of a regular file" do
+            File.stubs(:directory?).with("deploy-archive-dir/src1").returns(true)
+            File.stubs(:symlink?).with("deploy-archive-dir/src1").returns(false)
+            Dir.stubs(:entries)
+              .with("deploy-archive-dir/src1")
+              .returns([".", "..", "foo"])
+
+            File.stubs(:directory?).with("deploy-archive-dir/src1/foo").returns(false)
+            File.stubs(:symlink?).with("deploy-archive-dir/src1/foo").returns(true)
+
+            @instruction_builder
+              .expects(:copy)
+              .with("deploy-archive-dir/src1/foo", "dst1/foo")
+              .in_sequence(@command_sequence)
+
+            @installer.install(@deployment_group_id, @app_spec)
+          end
+
+          should "generate a copy command instead of a mkdir command if the file inside the source directory is a symbolic link of a directory" do
+            File.stubs(:directory?).with("deploy-archive-dir/src1").returns(true)
+            File.stubs(:symlink?).with("deploy-archive-dir/src1").returns(false)
+            Dir.stubs(:entries)
+              .with("deploy-archive-dir/src1")
+              .returns([".", "..", "foo"])
+
+            File.stubs(:directory?).with("deploy-archive-dir/src1/foo").returns(true)
+            File.stubs(:symlink?).with("deploy-archive-dir/src1/foo").returns(true)
+
+            @instruction_builder
+              .expects(:mkdir)
+              .with("dst1/foo")
+              .never
+            @instruction_builder
+              .expects(:copy)
+              .with("deploy-archive-dir/src1/foo", "dst1/foo")
+              .in_sequence(@command_sequence)
+
+            @installer.install(@deployment_group_id, @app_spec)
+          end
+
+        end # "symlinks"
+
         context "directories" do
 
           setup do