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"""
EmbeddingBridge - Core C Interface
Copyright (C) 2024 ProgramComputer
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
"""
import os
import ctypes
import json
import numpy as np
from pathlib import Path
import platform
from typing import List, Dict, Any, Optional, Tuple, Union
import time
import tempfile
# Locate the shared library
def _find_lib():
"""Find the appropriate shared library for the current platform"""
# Get the directory where this file is located
current_dir = os.path.dirname(os.path.abspath(__file__))
# Search paths for the library
search_paths = [
os.path.join(current_dir, "lib"), # Bundled with package
os.path.join(os.path.dirname(current_dir), "lib"), # Development layout
os.path.join(os.path.dirname(os.path.dirname(current_dir)), "lib"), # Project root
"/usr/local/lib", # System install
"/usr/lib", # System install
]
# Determine library name based on platform
system = platform.system()
if system == "Linux":
lib_names = ["libembedding_bridge.so", "libembeddingbridge.so"]
elif system == "Darwin":
lib_names = ["libembedding_bridge.dylib", "libembeddingbridge.dylib"]
elif system == "Windows":
lib_names = ["embedding_bridge.dll", "embeddingbridge.dll"]
else:
raise ImportError(f"Unsupported platform: {system}")
# Search for the library
for path in search_paths:
for name in lib_names:
lib_path = os.path.join(path, name)
if os.path.exists(lib_path):
return lib_path
raise ImportError("Could not find EmbeddingBridge library")
# Load the shared library
try:
_lib = ctypes.CDLL(_find_lib())
except ImportError as e:
raise ImportError(f"Failed to load EmbeddingBridge library: {e}")
# Define C function signatures based on the actual library
_lib.embr_store_init.argtypes = [ctypes.c_void_p, ctypes.POINTER(ctypes.c_void_p)]
_lib.embr_store_init.restype = ctypes.c_int
_lib.embr_store_destroy.argtypes = [ctypes.c_void_p]
_lib.embr_store_destroy.restype = ctypes.c_int
_lib.embr_create_embedding.argtypes = [ctypes.POINTER(ctypes.c_float), ctypes.c_int, ctypes.POINTER(ctypes.c_void_p)]
_lib.embr_create_embedding.restype = ctypes.c_int
_lib.embr_create_embedding_from_file.argtypes = [ctypes.c_char_p, ctypes.POINTER(ctypes.c_void_p)]
_lib.embr_create_embedding_from_file.restype = ctypes.c_int
_lib.embr_get_vector.argtypes = [ctypes.c_void_p, ctypes.c_uint64, ctypes.POINTER(ctypes.c_void_p), ctypes.POINTER(ctypes.c_void_p)]
_lib.embr_get_vector.restype = ctypes.c_int
# Define cmd_ function signatures correctly
_lib.cmd_rollback.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_rollback.restype = ctypes.c_int
_lib.cmd_set.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_set.restype = ctypes.c_int
_lib.cmd_init.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_init.restype = ctypes.c_int
_lib.cmd_model.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_model.restype = ctypes.c_int
_lib.cmd_store.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_store.restype = ctypes.c_int
_lib.cmd_status.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_status.restype = ctypes.c_int
_lib.cmd_log.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_log.restype = ctypes.c_int
_lib.cmd_diff.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_diff.restype = ctypes.c_int
_lib.cmd_rm.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_rm.restype = ctypes.c_int
_lib.cmd_switch.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_switch.restype = ctypes.c_int
# Add definitions for missing cmd_ functions
_lib.cmd_config.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_config.restype = ctypes.c_int
_lib.cmd_gc.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_gc.restype = ctypes.c_int
_lib.cmd_get.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_get.restype = ctypes.c_int
_lib.cmd_merge.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_merge.restype = ctypes.c_int
_lib.cmd_pull.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_pull.restype = ctypes.c_int
_lib.cmd_push.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_push.restype = ctypes.c_int
_lib.cmd_remote.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
_lib.cmd_remote.restype = ctypes.c_int
class EmbeddingStore:
"""Python wrapper for EmbeddingBridge vector store"""
def __init__(self, path: str, dimension: Optional[int] = None):
"""Initialize a new embedding store.
Args:
path: Path to the store
dimension: Vector dimension (for documentation only, actual dimension is determined by the C library)
"""
self.path = path
self._dimension = dimension
# Initialize store
store_ptr = ctypes.c_void_p()
config_ptr = ctypes.c_void_p() # This should be properly initialized in a full implementation
result = _lib.embr_store_init(config_ptr, ctypes.byref(store_ptr))
if result != 0:
raise RuntimeError(f"Failed to initialize embedding store at {path}, error code: {result}")
self._store = store_ptr
def __del__(self):
"""Close the store when the object is garbage collected"""
self.close()
def close(self):
"""Explicitly close the store"""
if hasattr(self, '_store') and self._store:
result = _lib.embr_store_destroy(self._store)
self._store = None
return result == 0
return False
def add_embedding_from_file(self, file_path: str) -> str:
"""Add an embedding from a file
Args:
file_path: Path to the file containing the embedding
Returns:
ID of the added embedding
"""
file_path_bytes = file_path.encode('utf-8')
embedding_ptr = ctypes.c_void_p()
result = _lib.embr_create_embedding_from_file(file_path_bytes, ctypes.byref(embedding_ptr))
if result != 0:
raise RuntimeError(f"Failed to create embedding from file: {file_path}, error code: {result}")
# TODO: Actually store the embedding in the store
# This would involve calling whatever function actually adds to the store
# For now, we'll just return a placeholder ID
return "embedding_1"
def add_vector(self, vector: List[float]) -> str:
"""Add a vector to the store
Args:
vector: List or array of float values
Returns:
ID of the added vector
"""
# Convert vector to ctypes array
vector_array = np.array(vector, dtype=np.float32)
arr_type = ctypes.c_float * len(vector_array)
vector_arr = arr_type(*vector_array)
# Create embedding
embedding_ptr = ctypes.c_void_p()
result = _lib.embr_create_embedding(vector_arr, len(vector_array), ctypes.byref(embedding_ptr))
if result != 0:
raise RuntimeError(f"Failed to create embedding, error code: {result}")
# TODO: Actually store the embedding in the store
# This would involve calling whatever function actually adds to the store
# For now, we'll just return a placeholder ID
return "vector_1"
def get_vector(self, vector_id: Union[str, int]) -> Optional[Dict]:
"""Get a vector by ID
Args:
vector_id: Vector ID
Returns:
Dictionary with vector data or None if not found
"""
# Convert ID to integer if it's a string
if isinstance(vector_id, str):
try:
id_num = int(vector_id)
except ValueError:
# If ID is not convertible to int, it's not a valid ID
return None
else:
id_num = vector_id
# Create output pointers
embedding_ptr = ctypes.c_void_p()
metadata_ptr = ctypes.c_void_p()
# Get vector
result = _lib.embr_get_vector(self._store, id_num, ctypes.byref(embedding_ptr), ctypes.byref(metadata_ptr))
if result != 0:
return None
# TODO: Properly extract embedding and metadata from the pointers
# This would involve handling the actual C structs
# For now, we'll just return a placeholder
return {
"id": str(id_num),
"vector": [0.1, 0.2, 0.3], # Placeholder
"metadata": {"source": "placeholder"} # Placeholder
}
@property
def dimension(self) -> int:
"""Get the dimension of vectors in the store"""
return self._dimension or 384 # Return provided dimension or default
def __enter__(self):
"""Context manager support"""
return self
def __exit__(self, exc_type, exc_val, exc_tb):
"""Close the store when exiting a context manager block"""
self.close()
return False # Don't suppress exceptions
class CommandResult:
"""Result of a command executed by EmbeddingBridge"""
def __init__(self, returncode, stdout, stderr=""):
"""Initialize CommandResult.
returncode: Return code of the command (0 for success)
stdout: Standard output from the command
stderr: Standard error from the command
"""
self.returncode = returncode
self.stdout = stdout
self.stderr = stderr
def __bool__(self):
"""Return True if the command succeeded (returncode == 0)"""
return self.returncode == 0
def __str__(self):
"""Return stdout as string representation"""
return self.stdout
class EmbeddingBridge:
"""Python wrapper for the EmbeddingBridge CLI tool using ctypes"""
def __init__(self, working_dir=None):
"""Initialize EmbeddingBridge.
Args:
working_dir: Working directory for commands
"""
self.working_dir = working_dir
if working_dir:
os.chdir(working_dir)
def _capture_stdout(self, func, argc, argv):
"""Helper method to capture stdout from C functions and return it as CommandResult"""
# Use temporary files for stdout and stderr redirection
with tempfile.NamedTemporaryFile(mode='w+b', delete=False) as stdout_file:
stdout_path = stdout_file.name
with tempfile.NamedTemporaryFile(mode='w+b', delete=False) as stderr_file:
stderr_path = stderr_file.name
# Save original file descriptors
original_stdout = os.dup(1)
original_stderr = os.dup(2)
# Open the temporary files
stdout_fd = os.open(stdout_path, os.O_WRONLY)
stderr_fd = os.open(stderr_path, os.O_WRONLY)
# Redirect stdout and stderr
os.dup2(stdout_fd, 1)
os.dup2(stderr_fd, 2)
try:
# Call the C function
returncode = func(argc, argv)
# Close the redirected files
os.close(stdout_fd)
os.close(stderr_fd)
# Restore original stdout and stderr
os.dup2(original_stdout, 1)
os.dup2(original_stderr, 2)
# Read the captured output
with open(stdout_path, 'rb') as f:
stdout_data = f.read().decode('utf-8', errors='replace')
with open(stderr_path, 'rb') as f:
stderr_data = f.read().decode('utf-8', errors='replace')
return CommandResult(returncode, stdout_data, stderr_data)
finally:
# Ensure original descriptors are restored
os.dup2(original_stdout, 1)
os.dup2(original_stderr, 2)
os.close(original_stdout)
os.close(original_stderr)
# Clean up temporary files
try:
os.unlink(stdout_path)
os.unlink(stderr_path)
except:
pass
def init(self):
"""Initialize a new embedding repository."""
args = [b"init"]
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_init, argc, argv)
def model_register(self, name, dimensions, normalize=False, description=None):
"""Register a model configuration."""
args = [b"model", b"register", name.encode('utf-8')]
# Add dimensions
args.append(str(dimensions).encode('utf-8'))
# Add normalize if true
if normalize:
args.append(b"--normalize")
# Add description if provided
if description:
args.append(b"--description")
args.append(description.encode('utf-8'))
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_model, argc, argv)
def model_list(self):
"""List all registered models."""
args = [b"model", b"list"]
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_model, argc, argv)
def store(self, embedding_file, source_file):
"""Store an embedding for a source file."""
args = [b"store"]
# Add embedding file
args.append(embedding_file.encode('utf-8') if isinstance(embedding_file, str) else embedding_file)
# Add source file
args.append(source_file.encode('utf-8') if isinstance(source_file, str) else source_file)
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_store, argc, argv)
def status(self, source_file=None, verbose=False):
"""Check status of tracked embeddings."""
args = [b"status"]
# Add source file if provided
if source_file:
args.append(source_file.encode('utf-8') if isinstance(source_file, str) else source_file)
# Add verbose flag if true
if verbose:
args.append(b"--verbose")
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_status, argc, argv)
def log(self, source_file):
"""Show history of embeddings for a source file."""
args = [b"log"]
# Add source file
args.append(source_file.encode('utf-8') if isinstance(source_file, str) else source_file)
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_log, argc, argv)
def diff(self, hash1, hash2):
"""Compare two embedding versions."""
args = [b"diff"]
# Add hashes
args.append(hash1.encode('utf-8') if isinstance(hash1, str) else hash1)
args.append(hash2.encode('utf-8') if isinstance(hash2, str) else hash2)
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_diff, argc, argv)
def rm(self, source_file, model=None, cached=False):
"""Remove an embedding or untrack a file."""
args = [b"rm"]
# Add source file
args.append(source_file.encode('utf-8') if isinstance(source_file, str) else source_file)
# Add model if provided
if model:
args.append(b"--model")
args.append(model.encode('utf-8') if isinstance(model, str) else model)
# Add cached flag if true
if cached:
args.append(b"--cached")
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_rm, argc, argv)
def rollback(self, hash_value, source_file, model=None):
"""Revert to a previous embedding version."""
# Format arguments based on the expected format: eb rollback [options] <hash> <source>
if model:
args = [b"rollback", b"--model", model.encode('utf-8') if isinstance(model, str) else model,
hash_value.encode('utf-8') if isinstance(hash_value, str) else hash_value,
source_file.encode('utf-8') if isinstance(source_file, str) else source_file]
else:
args = [b"rollback",
hash_value.encode('utf-8') if isinstance(hash_value, str) else hash_value,
source_file.encode('utf-8') if isinstance(source_file, str) else source_file]
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_rollback, argc, argv)
def set_create(self, name, description=None, base_set=None):
"""Create a new embedding set."""
# Format arguments based on the expected format: eb set [options] <set-name>
args = [b"set"]
# Add options
if description:
args.append(b"--description")
args.append(description.encode('utf-8') if isinstance(description, str) else description)
if base_set:
args.append(b"--base")
args.append(base_set.encode('utf-8') if isinstance(base_set, str) else base_set)
# Add set name
args.append(name.encode('utf-8') if isinstance(name, str) else name)
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_set, argc, argv)
def set_list(self, verbose=False):
"""List all embedding sets."""
# Format arguments based on the expected format: eb set [options]
args = [b"set"]
# Add verbose flag if true
if verbose:
args.append(b"--verbose")
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_set, argc, argv)
def set_switch(self, name):
"""Switch to a different embedding set."""
# Format arguments based on the expected format: eb switch <set-name>
args = [b"switch", name.encode('utf-8') if isinstance(name, str) else name]
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_switch, argc, argv)
def set_status(self):
"""Show status of the current embedding set."""
# Format arguments based on set command with specific status flag
args = [b"set", b"--status"]
# Convert to C array
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_set, argc, argv)
# New methods for additional CLI commands
def config(self, *cmd_args):
"""Run a config command with provided arguments."""
args = [b"config"] + [a.encode('utf-8') if isinstance(a, str) else a for a in cmd_args]
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_config, argc, argv)
def gc(self, *options):
"""Run garbage collection. Pass options like '-n' for dry-run."""
args = [b"gc"] + [opt.encode('utf-8') if isinstance(opt, str) else opt for opt in options]
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_gc, argc, argv)
def get(self, remote, path):
"""Download a file or directory from a remote repository."""
args = [b"get", remote.encode('utf-8') if isinstance(remote, str) else remote,
path.encode('utf-8') if isinstance(path, str) else path]
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_get, argc, argv)
def merge(self, source_set, target_set=None, strategy=None):
"""Merge embeddings from one set to another."""
args = [b"merge", source_set.encode('utf-8') if isinstance(source_set, str) else source_set]
if target_set:
args.append(target_set.encode('utf-8') if isinstance(target_set, str) else target_set)
if strategy:
args.append(b"--strategy")
args.append(strategy.encode('utf-8') if isinstance(strategy, str) else strategy)
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_merge, argc, argv)
def push(self, remote, set_name=None):
"""Push a set to a remote."""
args = [b"push", remote.encode('utf-8') if isinstance(remote, str) else remote]
if set_name:
args.append(set_name.encode('utf-8') if isinstance(set_name, str) else set_name)
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_push, argc, argv)
def pull(self, remote, set_name=None):
"""Pull a set from a remote."""
args = [b"pull", remote.encode('utf-8') if isinstance(remote, str) else remote]
if set_name:
args.append(set_name.encode('utf-8') if isinstance(set_name, str) else set_name)
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_pull, argc, argv)
def remote(self, *subargs):
"""Manage remotes (add, list, remove, etc.)."""
args = [b"remote"] + [a.encode('utf-8') if isinstance(a, str) else a for a in subargs]
argc = len(args)
argv_type = ctypes.c_char_p * argc
argv = argv_type(*args)
return self._capture_stdout(_lib.cmd_remote, argc, argv)