feat: support for empty file names

beet/library/base.py

@@ -679,8 +679,6 @@ class NamespaceProxy(
 
     def split_key(self, key: str) -> Tuple[str, str]:
         namespace, _, file_path = key.partition(":")
-        if not file_path:
-            raise KeyError(key)
         return namespace, file_path
 
     def join_key(self, key1: str, key2: str) -> str:

beet/library/utils.py

@@ -62,10 +62,31 @@ def list_origin_folders(prefix: str, origin: FileOrigin) -> Dict[str, List[PureP
 
     return folders
 
+def modified_suffixes(path: PurePath) -> List[str]:
+    """
+    Equivalent to path.suffixes but support file with empty name
+    filename                | filename.suffixes                 | modified_suffixes(filename)
+
+    load.mcfunction         | ['.mcfunction']                   | ['.mcfunction']
+    .mcfunction             | []                                | ['.mcfunction']
+    ..mcfunction            | []                                | ['.mcfunction']
+    load.py.mcfunction      | ['.py', '.mcfunction']            | ['.py', '.mcfunction']
+    .py.mcfunction          | ['.mcfunction']                   | ['.py', '.mcfunction']
+    aaa...mcfunction        | ['.', '.', '.mcfunction']         | ['.', '.', '.mcfunction']
+    ...mcfunction           | []                                | ['.', '.', '.mcfunction']
+    """
+    name = path.name
+    if name.endswith('.'):
+        return []
+    if name.startswith('.'):
+        name = name[1:]
+        return ['.' + suffix for suffix in name.split('.')]
+    return path.suffixes
+
 
 def list_extensions(path: PurePath) -> List[str]:
     extensions: List[str] = list(
-        accumulate(reversed(path.suffixes), lambda a, b: b + a)  # type: ignore
+        accumulate(reversed(modified_suffixes(path)), lambda a, b: b + a)  # type: ignore
     )
     extensions.reverse()
     extensions.append("")

examples/code_void/add_header.py

@@ -0,0 +1,9 @@
+from beet import Context, Function
+
+
+def beet_default(ctx: Context):
+    for f in ctx.data.functions.keys():
+        ctx.data.functions[f] = Function(f"say {f}")
+
+    ctx.data.functions["namespace:"] = Function("give me sugar")
+    ctx.data.functions["namespace:a/"] = Function("give me apple")

examples/code_void/beet.yaml

@@ -0,0 +1,10 @@
+data_pack:
+  load: [.]
+resource_pack:
+  load: [.]
+
+output: build
+
+
+pipeline:
+  - add_header

tests/snapshots/examples__build_code_void__0.data_pack/data/namespace/functions/.mcfunction

@@ -0,0 +1 @@
+give me sugar

tests/snapshots/examples__build_code_void__0.data_pack/data/namespace/functions/a/.mcfunction

@@ -0,0 +1 @@
+give me apple

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/...mcfunction

@@ -0,0 +1 @@
+say test:..

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/..mcfunction

@@ -0,0 +1 @@
+say test:.

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/.mcfunction

@@ -0,0 +1 @@
+say test:

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/.mcfunction.mcfunction

@@ -0,0 +1 @@
+say test:.mcfunction

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/.mcfunction.mcfunction.mcfunction

@@ -0,0 +1 @@
+say test:.mcfunction.mcfunction

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/a.mcfunction

@@ -0,0 +1 @@
+say test:a

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/a.py.git.mcfunction

@@ -0,0 +1 @@
+say test:a.py.git

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/a/...mcfunction

@@ -0,0 +1 @@
+say test:a/..

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/a/..mcfunction

@@ -0,0 +1 @@
+say test:a/.

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/a/.mcfunction

@@ -0,0 +1 @@
+say test:a/

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/a/.mcfunction.mcfunction

@@ -0,0 +1 @@
+say test:a/.mcfunction

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/a/a.mcfunction

@@ -0,0 +1 @@
+say test:a/a

tests/snapshots/examples__build_code_void__0.data_pack/data/test/functions/a/a.py.git.mcfunction

@@ -0,0 +1 @@
+say test:a/a.py.git

tests/snapshots/examples__build_code_void__0.data_pack/pack.mcmeta

@@ -0,0 +1,6 @@
+{
+  "pack": {
+    "pack_format": 26,
+    "description": ""
+  }
+}

tests/snapshots/examples__build_code_void__1.resource_pack/pack.mcmeta

@@ -0,0 +1,6 @@
+{
+  "pack": {
+    "pack_format": 22,
+    "description": ""
+  }
+}