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preprocessing.py
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preprocessing.py
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import os
import sys
from treesitter import Treesitter, Language
from collections import defaultdict
import re
import csv
from typing import List, Dict
from tree_sitter import Node
from tree_sitter_languages import get_language, get_parser
class CodeInfo:
def __init__(self, name: str, method_key: str, file_path: str, references: List[Dict[str, str]]):
self.name = name
self.method_key = method_key
self.file_path = file_path
self.references = references
def load_files(codebase_path):
file_list = []
for root, _, files in os.walk(codebase_path):
if any(blacklist in root for blacklist in BLACKLIST_DIR):
continue
for file in files:
file_ext = os.path.splitext(file)[1]
if any(whitelist == file_ext for whitelist in WHITELIST_FILES):
if file not in BLACKLIST_FILES and file != "docker-compose.yml":
file_path = os.path.join(root, file)
file_list.append(file_path)
return file_list
BLACKLIST_DIR = [
"__pycache__",
".pytest_cache",
".venv",
".git",
".idea",
"venv",
"env",
"node_modules",
"dist",
"build",
".vscode",
".github",
".gitlab",
".angular",
"cdk.out",
".aws-sam",
".terraform"
]
WHITELIST_FILES = [".java",".py", ".js", ".rs", ".md"]
BLACKLIST_FILES = ["docker-compose.yml"]
NODE_TYPES = {
"python": {
"class": "class_definition",
"method": "function_definition"
},
"java": {
"class": "class_declaration",
"method": "method_declaration"
},
"rust": {
"class": "struct_item",
"method": "function_item"
},
"javascript": {
"class": "class_declaration",
"method": "function_declaration"
},
"c": {
"class": "struct_specifier",
"method": "function_definition"
}
}
REFERENCE_IDENTIFIERS = {
"python": {
"class": "identifier",
"method": "call",
"child_field_name": "function"
},
"java": {
"class": "identifier",
"method": "method_invocation",
"child_field_name": "name"
},
"javascript": {
"class": "identifier",
"method": "call_expression",
"child_field_name": "function" # Placeholder, fill in if known
},
"rust": {
"class": "identifier",
"method": "call_expression",
"child_field_name": "function" # Placeholder, fill in if known
},
"c": {
"class": "type_identifier",
"method": "call_expression",
"child_field_name": "function" # Placeholder, fill in if known
}
}
def find_class_references(file_path: str, class_ref_node_type, class_name: str, ast: Node) -> List[Dict[str, str]]:
references = []
tree = ast
stack = [tree.root_node]
while stack:
node = stack.pop()
if node.type == class_ref_node_type and node.text.decode() == class_name:
reference = {
"file": file_path,
"line": node.start_point[0],
"column": node.start_point[1],
"text": node.parent.text.decode()
}
references.append(reference)
stack.extend(node.children)
return references
def find_method_references(file_path: str, method_ref_node_type, method_name: str, ast: Node, child_field_name) -> List[Dict[str, str]]:
references = []
def traverse_node(node):
if node.type == method_ref_node_type:
identifier = node.child_by_field_name(child_field_name) # java:name, python:function
if identifier and identifier.text.decode() == method_name:
reference = {
"file": file_path,
"line": node.start_point[0],
"column": node.start_point[1],
"text": node.text.decode()
}
references.append(reference)
for child in node.children:
traverse_node(child)
traverse_node(ast.root_node)
return references
def extract_code(file_path: str, parser, node_type: str, method) -> List[CodeInfo]:
with open(file_path, "r") as file:
code = file.read()
tree = parser.parse(bytes(code, "utf8"))
infos = []
def traverse_node(node):
if node.type == node_type:
if method:
code_lines = node.text.decode().split("\n")
if code_lines:
method_key = "\n".join(code_lines[:2])
else:
method_key = node.text.decode()
name = node.child_by_field_name("name").text.decode()
if method == False:
print(f"Class Name: {name}")
infos.append(CodeInfo(name, method_key, file_path, []))
for child in node.children:
traverse_node(child)
traverse_node(tree.root_node)
return infos
def process_codebase(file_list, language: str):
parser = get_parser(language)
class_infos = []
method_infos = []
file_asts = {}
class_node_type = NODE_TYPES[language]["class"]
method_node_type = NODE_TYPES[language]["method"]
class_ref_node_type = REFERENCE_IDENTIFIERS[language]["class"]
method_ref_node_type = REFERENCE_IDENTIFIERS[language]["method"]
child_field_name = REFERENCE_IDENTIFIERS[language]["child_field_name"]
for file_path in file_list:
if file_path not in file_asts:
class_infos_in_file = extract_code(file_path, parser, class_node_type, method=False)
class_infos.extend(class_infos_in_file)
file_asts[file_path] = parser.parse(bytes(open(file_path, "r").read(), "utf8"))
for class_info in class_infos:
references = []
for ref_file_path, ast in file_asts.items():
if ref_file_path != class_info.file_path:
references.extend(find_class_references(ref_file_path, class_ref_node_type, class_info.name, ast))
class_info.references = references
for file_path in file_list:
method_infos_in_file = extract_code(file_path, parser, method_node_type, method=True)
method_infos.extend(method_infos_in_file)
for method_info in method_infos:
references = []
for ref_file_path, ast in file_asts.items():
if ref_file_path != method_info.file_path:
references.extend(find_method_references(ref_file_path, method_ref_node_type, method_info.name, ast, child_field_name))
method_info.references = references
return class_infos, method_infos
def get_references(file_list, codebase_language):
class_infos, method_infos = process_codebase(file_list, codebase_language)
# for class_info in class_infos:
# print(f"class name:{class_info.name}, references:{class_info.references}")
# for method_info in method_infos:
# print(f"method name:{method_info.name}, references:{method_info.references}")
class_infos_dict = {class_info.name: class_info for class_info in class_infos}
method_infos_dict = {method_info.method_key : method_info for method_info in method_infos}
return class_infos_dict, method_infos_dict
def parse_code_files(file_list, codebase_language):
class_data = []
method_data = []
class_infos_dict, method_infos_dict = get_references(file_list, codebase_language.value)
for code_file in file_list:
with open(code_file, "r", encoding="utf-8") as file:
file_bytes = file.read().encode()
file_extension = os.path.splitext(code_file)[1]
if programming_language == Language.UNKNOWN:
print(f"Unknown programming language for file: {code_file}")
continue
treesitter_parser = Treesitter.create_treesitter(programming_language)
class_nodes, method_nodes = treesitter_parser.parse(file_bytes)
for class_node in class_nodes:
class_name = class_node.name
references = []
# Get the references for the current class from the class_infos_dict
if class_name in class_infos_dict:
class_info = class_infos_dict[class_name]
references = class_info.references
# print("class_info got hit", class_info.references)
class_data.append({
"file_path": code_file,
"class_name": class_name,
"constructor_declaration": class_node.constructor_declaration,
"method_declarations": "\n-----\n".join(class_node.method_declarations) if class_node.method_declarations else "",
"source_code": class_node.source_code,
"references": references # Initialize an empty set for references
})
for method_node in method_nodes:
name = method_node.name
references = []
# Get the references for the current method from the method_infos_dict
if name in method_infos_dict:
method_info = method_infos_dict[name]
# print("method_info got hit", method_info.references)
references = method_info.references
method_data.append({
"file_path": code_file,
"class_name": "", # Placeholder for class name
"name": method_node.name,
"doc_comment": method_node.doc_comment,
"source_code": method_node.method_source_code,
"references": references
})
return class_data, method_data
def extract_classes(content):
pattern = re.compile(r'\b(class|interface|enum)\s+(\w+)')
return {match.group(2) for match in pattern.finditer(content)}
def create_output_directory(codebase_path):
# Normalize and get the absolute path
normalized_path = os.path.normpath(os.path.abspath(codebase_path))
# Extract the base name of the directory
codebase_folder_name = os.path.basename(normalized_path)
# Create the output directory under 'processed'
output_directory = os.path.join("processed", codebase_folder_name)
os.makedirs(output_directory, exist_ok=True)
return output_directory
def write_class_data_to_csv(class_data, output_directory):
output_file = os.path.join(output_directory, "class_data.csv")
fieldnames = ["file_path", "class_name", "constructor_declaration", "method_declarations", "source_code", "references"]
with open(output_file, "w", newline="", encoding="utf-8") as file:
writer = csv.DictWriter(file, fieldnames=fieldnames)
writer.writeheader()
idx = 0
for row in class_data:
row["references"] = ",".join(map(str, row["references"]))
writer.writerow(row)
idx += 1
print(f"row {idx} written")
print(row)
print("------------------")
print(f"Class data written to {output_file}")
def write_method_data_to_csv(method_data, output_directory):
output_file = os.path.join(output_directory, "method_data.csv")
fieldnames = ["file_path", "class_name", "name", "doc_comment", "source_code", "references"]
with open(output_file, "w", newline="", encoding="utf-8") as file:
writer = csv.DictWriter(file, fieldnames=fieldnames)
writer.writeheader()
for row in method_data:
# Convert references list to a comma-separated string
row["references"] = ",".join(map(str, row["references"]))
writer.writerow(row)
print(f"Method data written to {output_file}")
# Example usage
if __name__ == "__main__":
if len(sys.argv) < 3:
print("Please provide the codebase path and language as arguments.")
sys.exit(1)
codebase_language = sys.argv[1]
codebase_path = sys.argv[2]
# removing fuzzy search because not giving enough ROI
"""
create_or_recreate_index(codebase_path)
index_codebase(codebase_path)
"""
programming_language = Language.UNKNOWN
if codebase_language.lower() == "java":
programming_language = Language.JAVA
elif codebase_language.lower() == "python":
programming_language = Language.PYTHON
elif codebase_language.lower() == "javascript":
programming_language = Language.JAVASCRIPT
elif codebase_language.lower() == "rust":
programming_language = Language.RUST
files = load_files(codebase_path)
class_data, method_data = parse_code_files(files, programming_language)
output_directory = create_output_directory(codebase_path)
# Write class data to CSV
write_class_data_to_csv(class_data, output_directory)
# Write method data to CSV
write_method_data_to_csv(method_data, output_directory)