/learn skips hidden files/dirs by default, unless "-a" is specified

docs/source/users/index.md

@@ -492,6 +492,19 @@ use the `-c` or `--chunk-size` option and the `-o` or `--chunk-overlap` option.
 /learn --chunk-size 1000 --chunk-overlap 200 <directory>
 ```
 
+By default, `/learn` will not read directories named `node_modules`, `lib`, or `build`,
+and will not read hidden files or hidden directories, where the file or directory name
+starts with a `.`. To force `/learn` to read all supported file types in all directories,
+use the `-a` or `--all-files` option.
+
+```
+# do not learn from hidden files, hidden directories, or node_modules, lib, or build directories
+/learn <directory>
+
+# learn from all supported files
+/learn -a <directory>
+```
+
 ### Additional chat commands
 
 To clear the chat panel, use the `/clear` command. This does not reset the AI model; the model may still remember previous messages that you sent it, and it may use them to inform its responses.

packages/jupyter-ai/jupyter_ai/chat_handlers/learn.py

@@ -38,6 +38,7 @@ def __init__(
         self.root_dir = root_dir
         self.dask_client_future = dask_client_future
         self.parser.prog = "/learn"
+        self.parser.add_argument("-a", "--all-files", action="store_true")
         self.parser.add_argument("-v", "--verbose", action="store_true")
         self.parser.add_argument("-d", "--delete", action="store_true")
         self.parser.add_argument("-l", "--list", action="store_true")
@@ -115,7 +116,9 @@ async def _process_message(self, message: HumanChatMessage):
         if args.verbose:
             self.reply(f"Loading and splitting files for {load_path}", message)
 
-        await self.learn_dir(load_path, args.chunk_size, args.chunk_overlap)
+        await self.learn_dir(
+            load_path, args.chunk_size, args.chunk_overlap, args.all_files
+        )
         self.save()
 
         response = f"""🎉 I have learned documents at **{load_path}** and I am ready to answer questions about them.
@@ -132,7 +135,9 @@ def _build_list_response(self):
         {dir_list}"""
         return message
 
-    async def learn_dir(self, path: str, chunk_size: int, chunk_overlap: int):
+    async def learn_dir(
+        self, path: str, chunk_size: int, chunk_overlap: int, all_files: bool
+    ):
         dask_client = await self.dask_client_future
         splitter_kwargs = {"chunk_size": chunk_size, "chunk_overlap": chunk_overlap}
         splitters = {
@@ -146,7 +151,7 @@ async def learn_dir(self, path: str, chunk_size: int, chunk_overlap: int):
             default_splitter=RecursiveCharacterTextSplitter(**splitter_kwargs),
         )
 
-        delayed = split(path, splitter=splitter)
+        delayed = split(path, all_files, splitter=splitter)
         doc_chunks = await dask_client.compute(delayed)
 
         em_provider_cls, em_provider_args = self.get_embedding_provider()

packages/jupyter-ai/jupyter_ai/document_loaders/directory.py

@@ -18,13 +18,11 @@ def path_to_doc(path):
         return Document(page_content=text, metadata=metadata)
 
 
+# Unless /learn has the "all files" option passed in, files and directories beginning with '.' are excluded
 EXCLUDE_DIRS = {
-    ".ipynb_checkpoints",
     "node_modules",
     "lib",
     "build",
-    ".git",
-    ".DS_Store",
 }
 SUPPORTED_EXTS = {
     ".py",
@@ -50,12 +48,15 @@ def flatten(*chunk_lists):
     return list(itertools.chain(*chunk_lists))
 
 
-def split(path, splitter):
+def split(path, all_files: bool, splitter):
     chunks = []
 
-    for dir, _, filenames in os.walk(path):
-        if dir in EXCLUDE_DIRS:
-            continue
+    for dir, subdirs, filenames in os.walk(path):
+        # Filter out hidden filenames, hidden directories, and excluded directories,
+        # unless "all files" are requested
+        if not all_files:
+            subdirs[:] = [d for d in subdirs if not (d[0] == "." or d in EXCLUDE_DIRS)]
+            filenames = [f for f in filenames if not f[0] == "."]
 
         for filename in filenames:
             filepath = Path(os.path.join(dir, filename))