add directory processing

tests/test_metadata.py

@@ -1,6 +1,6 @@
 from datetime import date
 from zona.models import Metadata
-from zona.builder import split_metadata
+from zona.builder import split_metadata, discover
 from pathlib import Path
 
 
@@ -22,3 +22,50 @@ description: This is a test.
     assert meta.description == "This is a test."
     assert meta.date == date(2025, 6, 3)
     assert content == "# Hello World"
+
+
+def test_discover(tmp_path: Path):
+    contentd = tmp_path / "content"
+    staticd = contentd / "static"
+    templatesd = tmp_path / "templates"
+    outd = tmp_path / "out"
+
+    for d in [contentd, staticd, templatesd, outd]:
+        d.mkdir()
+    md_file = contentd / "post.md"
+    md_file.write_text("""---
+title: Test Post
+date: 2025-06-03
+description: This is a test.
+---
+
+# Hello World
+    """)
+
+    style = staticd / "style.css"
+    style.write_text("""
+p {
+  color: red;
+  text-align: center;
+}
+""")
+
+    items = discover(tmp_path, outd)
+
+    assert len(items) == 2
+
+    md_item = items[0]
+    assert md_item.source == md_file
+    assert md_item.destination.name == "post.md"
+    assert md_item.destination.is_relative_to(outd)
+    assert md_item.url == "post.md"
+    assert isinstance(md_item.metadata, Metadata)
+    assert md_item.metadata.title == "Test Post"
+    assert md_item.content.strip() == "# Hello World"
+
+    st_item = items[1]
+    assert st_item.source == style
+    assert st_item.destination.name == "style.css"
+    assert st_item.destination.is_relative_to(outd)
+    assert st_item.url == "static/style.css"
+    assert st_item.metadata is None