[AWS|Glacier] make 1.8.7 friendly

lib/fog/aws/glacier.rb

@@ -70,10 +70,14 @@ module Fog
           if body.respond_to? :byteslice
             digests_for_part = chunk_count.times.collect {|chunk_index| Digest::SHA256.digest(body.byteslice(chunk_index * MEGABYTE, MEGABYTE))}
           else
-            old_encoding = body.encoding
-            body.force_encoding('BINARY')
+            if body.respond_to? :encoding
+              old_encoding = body.encoding
+              body.force_encoding('BINARY')
+            end
             digests_for_part = chunk_count.times.collect {|chunk_index| Digest::SHA256.digest(body.slice(chunk_index * MEGABYTE, MEGABYTE))}
-            body.force_encoding(old_encoding)
+            if body.respond_to? :encoding
+              body.force_encoding(old_encoding)
+            end
           end
           reduce_digests(digests_for_part)
         end

lib/fog/aws/requests/glacier/abort_multipart_upload.rb

@@ -25,7 +25,7 @@ module Fog
             :idempotent => true,
             :headers => {},
             :method   => :delete,
-            :path     => path,
+            :path     => path
           )
         end
       end

lib/fog/aws/requests/glacier/delete_archive.rb

@@ -25,7 +25,7 @@ module Fog
             :idempotent => true,
             :headers => {},
             :method   => :delete,
-            :path     => path,
+            :path     => path
           )
         end
       end

lib/fog/aws/requests/glacier/delete_vault.rb

@@ -24,7 +24,7 @@ module Fog
             :idempotent => true,
             :headers => {},
             :method   => :delete,
-            :path     => path,
+            :path     => path
           )
         end
       end

lib/fog/aws/requests/glacier/delete_vault_notification_configuration.rb

@@ -23,7 +23,7 @@ module Fog
             :idempotent => true,
             :headers => {},
             :method   => :delete,
-            :path     => path,
+            :path     => path
           )
         end
       end

lib/fog/aws/requests/glacier/describe_vault.rb

@@ -24,7 +24,7 @@ module Fog
             :idempotent => true,
             :headers => {},
             :method   => :get,
-            :path     => path,
+            :path     => path
           )
         end
       end

lib/fog/aws/requests/glacier/get_job_output.rb

@@ -31,7 +31,7 @@ module Fog
             :idempotent => true,
             :headers => headers,
             :method   => :get,
-            :path     => path,
+            :path     => path
           ))
         end
       end

lib/fog/aws/requests/glacier/get_vault_notification_configuration.rb

@@ -24,7 +24,7 @@ module Fog
             :idempotent => true,
             :headers => {},
             :method   => :get,
-            :path     => path,
+            :path     => path
           )
         end
       end

lib/fog/aws/requests/glacier/initiate_multipart_upload.rb

@@ -28,7 +28,7 @@ module Fog
             :expects  => 201,
             :headers => headers,
             :method   => 'POST',
-            :path     => path,
+            :path     => path
           )
         end
       end

tests/aws/requests/glacier/tree_hash_tests.rb

@@ -5,7 +5,9 @@ Shindo.tests('AWS::Glacier | glacier tree hash calcuation', ['aws']) do
   end
 
   tests('tree_hash(multibyte characters)') do
-    body = ("\xC2\xA1".force_encoding('UTF-8') * 1024*1024)
+    body = ("\xC2\xA1" * 1024*1024)
+    body.force_encoding('UTF-8') if body.respond_to? :encoding
+
     expected = Digest::SHA256.hexdigest(
                 Digest::SHA256.digest("\xC2\xA1" * 1024*512) + Digest::SHA256.digest("\xC2\xA1" * 1024*512)
               )