Support loading .gitignore from nested repo/submodules

doc/VectorCode-cli.txt

@@ -459,6 +459,10 @@ certain conditions. See the wiki
 <https://github.com/Davidyz/VectorCode/wiki/Tips-and-Tricks#git-hooks> for an
 example to use it with git hooks.
 
+If you’re working with nested repos, you can pass `--recursive`/`-r` so that
+the `vectorise` command will honour the `.gitignore`s and `vectorcode.exclude`s
+in the nested repos.
+
 
 MAKING A QUERY ~
 

docs/cli.md

@@ -426,6 +426,10 @@ on certain conditions. See
 [the wiki](https://github.com/Davidyz/VectorCode/wiki/Tips-and-Tricks#git-hooks) 
 for an example to use it with git hooks.
 
+If you're working with nested repos, you can pass `--recursive`/`-r` so that
+the `vectorise` command will honour the `.gitignore`s and `vectorcode.exclude`s 
+in the nested repos.
+
 ### Making a Query
 
 To retrieve a list of documents from the database, you can use the following command:

src/vectorcode/cli_utils.py

@@ -8,11 +8,12 @@
 from datetime import datetime
 from enum import Enum, StrEnum
 from pathlib import Path
-from typing import Any, Optional, Sequence, Union
+from typing import Any, Generator, Iterable, Optional, Sequence, Union
 
 import json5
 import shtab
 from filelock import AsyncFileLock
+from pathspec import GitIgnoreSpec
 
 from vectorcode import __version__
 
@@ -671,3 +672,58 @@ def get_lock(self, path: str | os.PathLike) -> AsyncFileLock:
         if self.__locks.get(path) is None:
             self.__locks[path] = AsyncFileLock(path)  # pyright: ignore[reportArgumentType]
         return self.__locks[path]
+
+
+class SpecResolver:
+    """
+    This class is a wrapper around filespec that makes it easier to work with file specs that are not in cwd.
+    """
+
+    @classmethod
+    def from_path(cls, spec_path: str, project_root: Optional[str] = None):
+        """
+        Automatically determine the appropriate `base_dir` for resolving file specs that are outside of the project root.
+        Only supports `.gitignore` and `.vectorcode/vectorcode.{include,exclude}`.
+        Raises `ValueError` if the spec path is not one of them.
+        """
+        base_dir = "."
+        if spec_path.endswith(".gitignore"):
+            base_dir = spec_path.replace(".gitignore", "")
+        else:
+            path_obj = Path(spec_path)
+            if path_obj.name in {"vectorcode.include", "vectorcode.exclude"}:
+                if path_obj.parent.name == ".vectorcode":
+                    # project config
+                    base_dir = str(path_obj.parent.parent)
+                else:
+                    # assume to be global config
+                    base_dir = project_root or "."
+            else:  # pragma: nocover
+                raise ValueError(f"Unsupported spec path: {spec_path}")
+        return cls(spec_path, base_dir)
+
+    def __init__(self, spec: str | GitIgnoreSpec, base_dir: str = "."):
+        if isinstance(spec, str):
+            with open(spec) as fin:
+                self.spec = GitIgnoreSpec.from_lines(
+                    (i.strip() for i in fin.readlines())
+                )
+        else:
+            self.spec = spec
+        self.base_dir = base_dir
+
+    def match(
+        self, paths: Iterable[str], negated: bool = False
+    ) -> Generator[str, None, None]:
+        # get paths relative to `base_dir`
+
+        base = Path(self.base_dir).resolve()
+        for p in paths:
+            if base in Path(p).resolve().parents:
+                should_yield = self.spec.match_file(os.path.relpath(p, self.base_dir))
+                if negated:
+                    should_yield = not should_yield
+                if should_yield:
+                    yield p
+            else:
+                yield p

src/vectorcode/subcommands/vectorise.py

@@ -1,4 +1,5 @@
 import asyncio
+import glob
 import hashlib
 import json
 import logging
@@ -20,6 +21,7 @@
     GLOBAL_EXCLUDE_SPEC,
     GLOBAL_INCLUDE_SPEC,
     Config,
+    SpecResolver,
     expand_globs,
     expand_path,
 )
@@ -187,22 +189,13 @@ def show_stats(configs: Config, stats: VectoriseStats):
 
 
 def exclude_paths_by_spec(
-    paths: Iterable[str], specs: pathspec.PathSpec | str
+    paths: Iterable[str], spec_path: str, project_root: Optional[str] = None
 ) -> list[str]:
     """
     Files matched by the specs will be excluded.
     """
-    if isinstance(specs, str):
-        with open(specs) as fin:
-            specs = pathspec.GitIgnoreSpec.from_lines(fin.readlines())
-    return [path for path in paths if not specs.match_file(path)]
 
-
-def include_paths_by_spec(paths: Iterable[str], specs: pathspec.PathSpec) -> list[str]:
-    """
-    Only include paths matched by the specs.
-    """
-    return [path for path in paths if specs.match_file(path)]
+    return list(SpecResolver.from_path(spec_path, project_root).match(paths, True))
 
 
 def load_files_from_include(project_root: str) -> list[str]:
@@ -235,17 +228,25 @@ def find_exclude_specs(configs: Config) -> list[str]:
     Load a list of paths to exclude specs.
     Can be `.gitignore` or local/global `vectorcode.exclude`
     """
-    gitignore_path = os.path.join(str(configs.project_root), ".gitignore")
-    specs = [
-        gitignore_path,
-    ]
+    if configs.recursive:
+        specs = glob.glob(
+            os.path.join(str(configs.project_root), "**", ".gitignore"), recursive=True
+        ) + glob.glob(
+            os.path.join(str(configs.project_root), "**", "vectorcode.exclude"),
+            recursive=True,
+        )
+    else:
+        specs = [os.path.join(str(configs.project_root), ".gitignore")]
+
     exclude_spec_path = os.path.join(
         str(configs.project_root), ".vectorcode", "vectorcode.exclude"
     )
     if os.path.isfile(exclude_spec_path):
         specs.append(exclude_spec_path)
     elif os.path.isfile(GLOBAL_EXCLUDE_SPEC):
         specs.append(GLOBAL_EXCLUDE_SPEC)
+    specs = [i for i in specs if os.path.isfile(i)]
+    logger.debug(f"Loaded exclude specs: {specs}")
     return specs
 
 
@@ -272,7 +273,10 @@ async def vectorise(configs: Config) -> int:
             for spec_path in find_exclude_specs(configs):
                 if os.path.isfile(spec_path):
                     logger.info(f"Loading ignore specs from {spec_path}.")
-                    files = exclude_paths_by_spec((str(i) for i in files), spec_path)
+                    files = exclude_paths_by_spec(
+                        (str(i) for i in files), spec_path, str(configs.project_root)
+                    )
+                    logger.debug(f"Files after excluding: {files}")
         else:  # pragma: nocover
             logger.info("Ignoring exclude specs.")