aider/utils.py

99 lines
2.5 KiB
Python

import math
from difflib import SequenceMatcher
from pathlib import Path
#from dump import dump
def replace_most_similar_chunk(whole, part, replace):
similarity_thresh = 0.8
max_similarity = 0
most_similar_chunk_start = -1
most_similar_chunk_end = -1
whole_lines = whole.splitlines()
part_lines = part.splitlines()
scale = 0.1
min_len = math.floor(len(part_lines) * (1 - scale))
max_len = math.ceil(len(part_lines) * (1 + scale))
for length in range(min_len, max_len):
for i in range(len(whole_lines) - length + 1):
chunk = whole_lines[i : i + length + 1]
chunk = "\n".join(chunk)
similarity = SequenceMatcher(None, chunk, part).ratio()
if similarity > max_similarity and similarity:
max_similarity = similarity
most_similar_chunk_start = i
most_similar_chunk_end = i + length + 1
if max_similarity < similarity_thresh:
return
replace_lines = replace.splitlines()
modified_whole = (
whole_lines[:most_similar_chunk_start]
+ replace_lines
+ whole_lines[most_similar_chunk_end:]
)
modified_whole = "\n".join(modified_whole)
return modified_whole
def quoted_file(fname):
prompt = "\n"
prompt += fname
prompt += "\n```\n"
prompt += Path(fname).read_text()
prompt += "\n```\n"
return prompt
def strip_quoted_wrapping(res, fname=None):
if not res:
return res
res = res.splitlines()
if fname and res[0].strip().endswith(Path(fname).name):
res = res[1:]
if res[0].startswith("```") and res[-1].startswith("```"):
res = res[1:-1]
res = "\n".join(res)
if res and res[-1] != "\n":
res += "\n"
return res
def do_replace(fname, before_text, after_text):
before_text = strip_quoted_wrapping(before_text, fname)
after_text = strip_quoted_wrapping(after_text, fname)
fname = Path(fname)
# does it want to make a new file?
if not fname.exists() and not before_text.strip():
fname.touch()
content = fname.read_text()
if not before_text.strip():
if content:
new_content = content + after_text
else:
# first populating an empty file
new_content = after_text
else:
new_content = replace_most_similar_chunk(
content, before_text, after_text
)
if not new_content:
return
fname.write_text(new_content)
return True