5 files changed, 30 insertions, 4 deletions
diff --git a/src/guff/cli.cr b/src/guff/cli.cr
index 15ff5a4..600f5d4 100644
--- a/src/guff/cli.cr
+++ b/src/guff/cli.cr
@@ -112,7 +112,7 @@ module Guff::CLI
 
     class ThemePackAction < Action
       def run
-        Theme::SourceManifest.save(
+        Theme::Packer::Manifest.save(
           src_dir:  @config.theme_src_dir.not_nil!,
           dst_path: @config.theme_dst_path.not_nil!,
         )
diff --git a/src/guff/theme/installer/file-info.cr b/src/guff/theme/installer/file-info.cr
new file mode 100644
index 0000000..dfbd9d8
--- /dev/null
+++ b/src/guff/theme/installer/file-info.cr
@@ -0,0 +1,7 @@
+class Guff::Theme::Installer::FileInfo
+  JSON.mapping(
+    name: String,
+    size: Int64,
+    hash: String,
+  )
+end
diff --git a/src/guff/theme/installer/manifest.cr b/src/guff/theme/installer/manifest.cr
new file mode 100644
index 0000000..5e7e07f
--- /dev/null
+++ b/src/guff/theme/installer/manifest.cr
@@ -0,0 +1,19 @@
+class Guff::Theme::Installer::Manifest
+  JSON.mapping(
+    format:     Int32,
+    metadata:   Hash(String, String),
+    files:      Array(FileInfo),
+    assets:     Assets,
+    templates:  Hash(String, String),
+  )
+
+  def self.load(zip_path : String) : Manifest
+    json = ""
+    Zip::Archive.open(zip_path) do |zip|
+      json = zip.read("guff-manifest.json")
+    end
+
+    # return result
+    from_json(json)
+  end
+end
diff --git a/src/guff/theme/file-info.cr b/src/guff/theme/packer/file-info.cr
index 768d625..c274f01 100644
--- a/src/guff/theme/file-info.cr
+++ b/src/guff/theme/packer/file-info.cr
@@ -1,4 +1,4 @@
-class Guff::Theme::FileInfo
+class Guff::Theme::Packer::FileInfo
   getter :size, :hash
 
   def initialize(src_dir : String, @path : String)
diff --git a/src/guff/theme/source-manifest.cr b/src/guff/theme/packer/manifest.cr
index bfa3486..21fbda7 100644
--- a/src/guff/theme/source-manifest.cr
+++ b/src/guff/theme/packer/manifest.cr
@@ -1,4 +1,4 @@
-class Guff::Theme::SourceManifest
+class Guff::Theme::Packer::Manifest
   getter :format, :metadata, :assets
 
   JSON.mapping(
@@ -17,7 +17,7 @@ class Guff::Theme::SourceManifest
     load(src_dir).save(dst_path, src_dir)
   end
 
-  def self.load(src_dir : String) : SourceManifest
+  def self.load(src_dir : String) : Manifest
     r = from_json(File.read(File.join(src_dir, "guff-manifest.json")))
 
     # check format version