pep723: Fix empty metadata lines throwing "Invalid metadata line: #"

Closes pyproject-nix/uv2nix#120
pyproject-nix · Jan 30, 2025 · 0d9f4b9 · 0d9f4b9
1 parent 78ea10a
commit 0d9f4b9
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diff --git a/lib/pep723.nix b/lib/pep723.nix
@@ -22,7 +22,7 @@ let
   stripComment =
     l:
     let
-      m = match " *# (.+)" l;
+      m = match " *# ?(.*)" l;
     in
     if match " *" l != null then
       l

diff --git a/lib/test_pep723.nix b/lib/test_pep723.nix
@@ -163,6 +163,34 @@ in
       };
     };
 
+    testEmptyLine = {
+      expr =
+        (pep723.parseScript ''
+          # /// script
+          # requires-python = ">=3.11"
+          # # Note: Empty line below
+          #
+          # ///
+        '').requires-python;
+      expected = [
+        {
+          op = ">=";
+          version = {
+            dev = null;
+            epoch = 0;
+            local = null;
+            post = null;
+            pre = null;
+            release = [
+              3
+              11
+            ];
+            str = "3.11";
+          };
+        }
+      ];
+    };
+
     # Note the empty line in the script.
     testHolyMetadata = {
       expr = pep723.parseScript ''