Support spaces in git repository path

lib/kamal/commands/builder/clone.rb

@@ -1,29 +1,31 @@
 module Kamal::Commands::Builder::Clone
-  extend ActiveSupport::Concern
-
-  included do
-    delegate :clone_directory, :build_directory, to: :"config.builder"
-  end
-
   def clone
-    git :clone, Kamal::Git.root, "--recurse-submodules", path: clone_directory
+    git :clone, escaped_root, "--recurse-submodules", path: config.builder.clone_directory.shellescape
   end
 
   def clone_reset_steps
     [
-      git(:remote, "set-url", :origin, Kamal::Git.root, path: build_directory),
-      git(:fetch, :origin, path: build_directory),
-      git(:reset, "--hard", Kamal::Git.revision, path: build_directory),
-      git(:clean, "-fdx", path: build_directory),
-      git(:submodule, :update, "--init", path: build_directory)
+      git(:remote, "set-url", :origin, escaped_root, path: escaped_build_directory),
+      git(:fetch, :origin, path: escaped_build_directory),
+      git(:reset, "--hard", Kamal::Git.revision, path: escaped_build_directory),
+      git(:clean, "-fdx", path: escaped_build_directory),
+      git(:submodule, :update, "--init", path: escaped_build_directory)
     ]
   end
 
   def clone_status
-    git :status, "--porcelain", path: build_directory
+    git :status, "--porcelain", path: escaped_build_directory
   end
 
   def clone_revision
-    git :"rev-parse", :HEAD, path: build_directory
+    git :"rev-parse", :HEAD, path: escaped_build_directory
+  end
+
+  def escaped_root
+    Kamal::Git.root.shellescape
+  end
+
+  def escaped_build_directory
+    config.builder.build_directory.shellescape
   end
 end

test/commands/builder_test.rb

@@ -149,15 +149,26 @@ class CommandsBuilderTest < ActiveSupport::TestCase
     assert_equal "docker info --format '{{index .RegistryConfig.Mirrors 0}}'", command.first_mirror.join(" ")
   end
 
+  test "clone path with spaces" do
+    command = new_builder_command
+    Kamal::Git.stubs(:root).returns("/absolute/path with spaces")
+    clone_command = command.clone.join(" ")
+    clone_reset_commands = command.clone_reset_steps.map { |a| a.join(" ") }
+
+    assert_match(%r{path\\ with\\ space}, clone_command)
+    assert_no_match(%r{path with spaces}, clone_command)
+
+    clone_reset_commands.each do |command|
+      assert_match(%r{path\\ with\\ space}, command)
+      assert_no_match(%r{path with spaces}, command)
+    end
+  end
+
   private
     def new_builder_command(additional_config = {})
       Kamal::Commands::Builder.new(Kamal::Configuration.new(@config.deep_merge(additional_config), version: "123"))
     end
 
-    def build_directory
-      "#{Dir.tmpdir}/kamal-clones/app/kamal/"
-    end
-
     def local_arch
       Kamal::Utils.docker_arch
     end