svenvanheugten/mechanicaldiff
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Just return empty lists instead of None

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Sven van Heugten 2026-03-05 21:09:06 +01:00
parent 72766295c0
commit d712a7eea2
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GPG key ID: D612F88666F4F660
1 changed files with 9 additions and 11 deletions
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16
bin/mechanicaldiff.py
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@ -6,7 +6,7 @@ import sys
def filter_change_block( def filter_change_block(
change_lines: list[str], search: str, replace: str change_lines: list[str], search: str, replace: str
) -> list[str] | None: ) -> list[str]:
removed_lines = [] removed_lines = []
added_lines = [] added_lines = []
phase = "minus" phase = "minus"
@ -31,7 +31,7 @@ def filter_change_block(
return change_lines return change_lines
if len(removed_lines) != len(added_lines): if len(removed_lines) != len(added_lines):
return None return []
kept_lines = [] kept_lines = []
for removed, added in zip(removed_lines, added_lines): for removed, added in zip(removed_lines, added_lines):
@ -42,16 +42,16 @@ def filter_change_block(
kept_lines.append(f" {removed}") kept_lines.append(f" {removed}")
if not kept_lines: if not kept_lines:
return None return []
return kept_lines return kept_lines
def filter_hunk( def filter_hunk(
hunk_lines: list[str], search: str, replace: str hunk_lines: list[str], search: str, replace: str
) -> list[str] | None: ) -> list[str]:
if not hunk_lines: if not hunk_lines:
return None, False return []
header = hunk_lines[0] header = hunk_lines[0]
body = hunk_lines[1:] body = hunk_lines[1:]
@ -73,7 +73,7 @@ def filter_hunk(
i += 1 i += 1
if not any(line.startswith(("+", "-")) for line in output_body): if not any(line.startswith(("+", "-")) for line in output_body):
return None return []
return [header] + output_body return [header] + output_body
@ -120,12 +120,10 @@ def main() -> None:
kept_hunks = [] kept_hunks = []
for hunk_lines in section["hunks"]: for hunk_lines in section["hunks"]:
filtered = filter_hunk(hunk_lines, search, replace) filtered = filter_hunk(hunk_lines, search, replace)
if filtered:
if filtered != hunk_lines: if filtered != hunk_lines:
left_out = True left_out = True
if filtered:
kept_hunks.append(filtered) kept_hunks.append(filtered)
elif hunk_lines:
left_out = True
if not kept_hunks: if not kept_hunks:
left_out = True left_out = True