fix: ensure imported CSS is resolved recursively (close #600)

Gemfile.lock

@@ -101,7 +101,7 @@ GEM
     ast (2.4.2)
     base64 (0.3.0)
     benchmark-ips (2.14.0)
-    bigdecimal (4.0.1)
+    bigdecimal (4.1.0)
     builder (3.3.0)
     byebug (11.1.3)
     coderay (1.1.3)
@@ -161,7 +161,7 @@ GEM
     net-smtp (0.4.0)
       net-protocol
     nio4r (2.5.9)
-    nokogiri (1.19.1)
+    nokogiri (1.19.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     parallel (1.26.3)

package.json

@@ -38,6 +38,5 @@
     "type": "git",
     "url": "https://github.com/ElMassimo/vite_ruby"
   },
-  "homepage": "https://github.com/ElMassimo/vite_ruby",
-  "packageManager": "pnpm@10.32.1"
-}
+  "homepage": "https://github.com/ElMassimo/vite_ruby"
+}

test/helper_test.rb

@@ -109,17 +109,17 @@ def test_vite_stylesheet_tag
   def test_vite_preload_tag
     assert_includes vite_typescript_tag("main", host: "example.com", protocol: "https"), [
       %(<link rel="modulepreload" href="https://example.com/vite-production/assets/log.818edfb8.js" as="script" crossorigin="">),
-      %(<link rel="modulepreload" href="https://example.com/vite-production/assets/vue.3002ada6.js" as="script" crossorigin="">),
       %(<link rel="modulepreload" href="https://example.com/vite-production/assets/vendor.0f7c0ec3.js" as="script" crossorigin="">),
+      %(<link rel="modulepreload" href="https://example.com/vite-production/assets/vue.3002ada6.js" as="script" crossorigin="">),
     ].join("\n")
   end
 
   def test_vite_javascript_tag
     assert_similar [
       %(<script src="/vite-production/assets/main.9dcad042.js" crossorigin="" type="module"></script>),
       %(<link rel="modulepreload" href="/vite-production/assets/log.818edfb8.js" as="script" crossorigin="">),
-      %(<link rel="modulepreload" href="/vite-production/assets/vue.3002ada6.js" as="script" crossorigin="">),
       %(<link rel="modulepreload" href="/vite-production/assets/vendor.0f7c0ec3.js" as="script" crossorigin="">),
+      %(<link rel="modulepreload" href="/vite-production/assets/vue.3002ada6.js" as="script" crossorigin="">),
       link(href: "/vite-production/assets/app.517bf154.css", crossorigin: ""),
       link(href: "/vite-production/assets/theme.e6d9734b.css", crossorigin: ""),
       link(href: "/vite-production/assets/vue.ec0a97cc.css", crossorigin: ""),

test/manifest_test.rb

@@ -118,6 +118,12 @@ def test_lookup_with_type_exception!
   end
 
   def test_lookup_success!
+    vendor_chunk = {
+      "file" => prefixed("vendor.0f7c0ec3.js"),
+      "css" => [
+        prefixed("vue.ec0a97cc.css"),
+      ],
+    }
     entry = {
       "file" => prefixed("main.9dcad042.js"),
       "src" => "entrypoints/main.ts",
@@ -129,16 +135,12 @@ def test_lookup_success!
           "src" => "entrypoints/frameworks/vue.js",
           "isEntry" => true,
           "imports" => [
-            {"file" => prefixed("vendor.0f7c0ec3.js")},
-          ],
-          "css" => [
-            prefixed("vue.ec0a97cc.css"),
+            vendor_chunk,
           ],
           "assets" => [
             prefixed("logo.322aae0c.svg"),
           ],
         },
-        {"file" => prefixed("vendor.0f7c0ec3.js")},
       ],
       "css" => [
         prefixed("app.517bf154.css"),

test/test_app/public/vite-production/.vite/manifest.json

@@ -68,9 +68,6 @@
     "imports": [
       "_vendor.0f7c0ec3.js"
     ],
-    "css": [
-      "assets/vue.ec0a97cc.css"
-    ],
     "assets": [
       "assets/logo.322aae0c.svg"
     ]
@@ -81,8 +78,7 @@
     "isEntry": true,
     "imports": [
       "_log.818edfb8.js",
-      "entrypoints/frameworks/vue.js",
-      "_vendor.0f7c0ec3.js"
+      "entrypoints/frameworks/vue.js"
     ],
     "css": [
       "assets/app.517bf154.css",
@@ -95,7 +91,10 @@
     "isEntry": true
   },
   "_vendor.0f7c0ec3.js": {
-    "file": "assets/vendor.0f7c0ec3.js"
+    "file": "assets/vendor.0f7c0ec3.js",
+    "css": [
+      "assets/vue.ec0a97cc.css"
+    ]
   },
   "_log.818edfb8.js": {
     "file": "assets/log.818edfb8.js"

vite_ruby/lib/vite_ruby/manifest.rb

@@ -22,13 +22,30 @@ def path_for(name, **options)
     lookup!(name, **options).fetch("file")
   end
 
+  # Internal: Recursively collects all imported chunks for a given entry.
+  # Returns chunks in dependency-first order (deepest imports first), deduped.
+  def import_chunks_for(entry, seen_filenames: Set.new)
+    chunks = []
+
+    entry["imports"]&.each do |chunk|
+      filename = chunk["file"]
+      next if seen_filenames.include?(filename)
+      seen_filenames.add(filename)
+
+      chunks.concat(import_chunks_for(chunk, seen_filenames: seen_filenames))
+      chunks << chunk
+    end
+
+    chunks
+  end
+
   # Public: Returns scripts, imported modules, and stylesheets for the specified
   # entrypoint files.
   def resolve_entries(*names, **options)
     entries = names.map { |name| lookup!(name, **options) }
     script_paths = entries.map { |entry| entry.fetch("file") }
 
-    imports = dev_server_running? ? [] : entries.flat_map { |entry| entry["imports"] }.compact
+    imports = dev_server_running? ? [] : entries.flat_map { |entry| import_chunks_for(entry) }
     {
       scripts: script_paths,
       imports: imports.filter_map { |entry| entry.fetch("file") }.uniq,