refactor(gui_2,patch_modal): merge diff_viewer ops into gui_2; data classes (DiffHunk/DiffFile) move to patch_modal.py alongside PendingPatch; git rm src/diff_viewer.py

Per spec FR1 + Phase 1.4 + architecture feedback (data != view):
  - Data classes DiffHunk, DiffFile -> src/patch_modal.py (alongside PendingPatch; all patch-domain data)
  - Operations parse_diff/parse_hunk_header/get_line_color/apply_patch_to_file (called by gui_2) -> src/gui_2.py
  - GUI is a pure view; data lives elsewhere; no new files per AGENTS.md

Tests: tests/test_diff_viewer.py imports from src.gui_2 (parse_diff/apply_patch_to_file) and src.patch_modal (DiffFile/DiffHunk).
This commit is contained in:
ed
2026-06-26 06:59:30 -04:00
parent b10b5bae87
commit 163b12493b
4 changed files with 160 additions and 177 deletions
-173
View File
@@ -1,173 +0,0 @@
import difflib
import shutil
import os
from dataclasses import dataclass
from pathlib import Path
from typing import List, Dict, Optional, Tuple
from src.result_types import ErrorInfo, ErrorKind, Result
@dataclass
class DiffHunk:
header: str
lines: List[str]
old_start: int
old_count: int
new_start: int
new_count: int
@dataclass
class DiffFile:
old_path: str
new_path: str
hunks: List[DiffHunk]
def parse_hunk_header(line: str) -> tuple[int, int, int, int]:
"""
[C: tests/test_diff_viewer.py:test_parse_hunk_header]
"""
if not line.startswith("@@"): return (-1, -1, -1, -1)
parts = line.split()
if len(parts) < 2: return (-1, -1, -1, -1)
old_part = parts[1][1:]
new_part = parts[2][1:]
old_parts = old_part.split(",")
new_parts = new_part.split(",")
old_start = int(old_parts[0])
old_count = int(old_parts[1]) if len(old_parts) > 1 else 1
new_start = int(new_parts[0])
new_count = int(new_parts[1]) if len(new_parts) > 1 else 1
return (old_start, old_count, new_start, new_count)
def parse_diff(diff_text: str) -> List[DiffFile]:
"""
[C: src/gui_2.py:App.request_patch_from_tier4, tests/test_diff_viewer.py:test_diff_line_classification, tests/test_diff_viewer.py:test_parse_diff_empty, tests/test_diff_viewer.py:test_parse_diff_none, tests/test_diff_viewer.py:test_parse_diff_with_context, tests/test_diff_viewer.py:test_parse_multiple_files, tests/test_diff_viewer.py:test_parse_simple_diff]
"""
if not diff_text or not diff_text.strip():
return []
files: List[DiffFile] = []
current_file: Optional[DiffFile] = None
current_hunk: Optional[DiffHunk] = None
for line in diff_text.split("\n"):
if line.startswith("--- "):
if current_file:
if current_hunk:
current_file.hunks.append(current_hunk)
current_hunk = None
files.append(current_file)
path = line[4:]
if path.startswith("a/"):
path = path[2:]
current_file = DiffFile(old_path=path, new_path="", hunks=[])
elif line.startswith("+++ ") and current_file:
path = line[4:]
if path.startswith("b/"):
path = path[2:]
current_file.new_path = path
elif line.startswith("@@") and current_file:
if current_hunk:
current_file.hunks.append(current_hunk)
hunk_info = parse_hunk_header(line)
if hunk_info:
old_start, old_count, new_start, new_count = hunk_info
current_hunk = DiffHunk(
header = line,
lines = [],
old_start = old_start,
old_count = old_count,
new_start = new_start,
new_count = new_count
)
else:
current_hunk = DiffHunk(
header = line,
lines = [],
old_start = 0,
old_count = 0,
new_start = 0,
new_count = 0
)
elif current_hunk is not None:
current_hunk.lines.append(line)
elif line and not line.startswith("diff ") and not line.startswith("index "):
pass
if current_file:
if current_hunk:
current_file.hunks.append(current_hunk)
files.append(current_file)
return files
def get_line_color(line: str) -> str:
"""
[C: tests/test_diff_viewer.py:test_get_line_color]
"""
if line.startswith("+"): return "green"
elif line.startswith("-"): return "red"
elif line.startswith("@@"): return "cyan"
return ""
def apply_patch_to_file(patch_text: str, base_dir: str = ".") -> Tuple[bool, str]:
"""
[C: src/gui_2.py:App._apply_pending_patch, tests/test_diff_viewer.py:test_apply_patch_simple, tests/test_diff_viewer.py:test_apply_patch_with_context]
"""
diff_files = parse_diff(patch_text)
if not diff_files:
return False, "No valid diff found"
results = []
for df in diff_files:
file_path = Path(base_dir) / df.old_path
if not file_path.exists():
results.append(f"File not found: {file_path}")
continue
try:
with open(file_path, "r", encoding="utf-8") as f:
original_lines = f.read().splitlines(keepends=True)
new_lines = original_lines.copy()
offset = 0
for hunk in df.hunks:
hunk_old_start = hunk.old_start - 1
hunk_old_count = hunk.old_count
replace_start = hunk_old_start + offset
replace_count = hunk_old_count
hunk_new_content: List[str] = []
for line in hunk.lines:
if line.startswith("+") and not line.startswith("+++"):
hunk_new_content.append(line[1:] + "\n")
elif line.startswith(" ") or (line and not line.startswith(("-", "+", "@@"))):
hunk_new_content.append(line + "\n")
new_lines = new_lines[:replace_start] + hunk_new_content + new_lines[replace_start + replace_count:]
offset += len(hunk_new_content) - replace_count
with open(file_path, "w", encoding="utf-8", newline="") as f:
f.writelines(new_lines)
results.append(f"Patched: {file_path}")
except (OSError, ValueError, IndexError) as e:
_patch_err_result = Result(data=False, errors=[ErrorInfo(kind=ErrorKind.INTERNAL, message=f"Error patching {file_path}: {e}", source="diff_viewer.apply_patch_to_file", original=e)])
return _patch_err_result.data, _patch_err_result.errors[0].message
return True, "\n".join(results)
+143 -2
View File
@@ -96,7 +96,6 @@ np = _LazyModule("numpy") # was: import numpy as np
filedialog = _LazyModule("tkinter", "filedialog") # was: from tkinter import filedialog
Tk = _LazyModule("tkinter", "Tk") # was: from tkinter import Tk
from src.diff_viewer import apply_patch_to_file
from src import ai_client
from src import aggregate
from src import api_hooks
@@ -8115,7 +8114,6 @@ def request_patch_from_tier4_result(app: "App", error: str, file_context: str) -
[C: src/gui_2.py:App.request_patch_from_tier4 (L1428 legacy wrapper)]
"""
from src.diff_viewer import parse_diff
try:
patch_text = ai_client.run_tier4_patch_generation(error, file_context)
if patch_text and "---" in patch_text and "+++" in patch_text:
@@ -8508,6 +8506,149 @@ def draw_soft_shadow(draw_list: imgui.ImDrawList, p_min: imgui.ImVec2, p_max: im
)
#endregion: Shaders
#region: Diff Viewer Operations (data classes live in src/patch_modal.py alongside PendingPatch; ops that gui_2 calls live here)
import difflib as _diff_difflib
import shutil as _diff_shutil
import os as _diff_os
from pathlib import Path as _diff_Path
from typing import List as _diff_List, Optional as _diff_Optional, Tuple as _diff_Tuple
from src.patch_modal import DiffHunk, DiffFile
def parse_hunk_header(line: str) -> tuple[int, int, int, int]:
if not line.startswith("@@"): return (-1, -1, -1, -1)
parts = line.split()
if len(parts) < 2: return (-1, -1, -1, -1)
old_part = parts[1][1:]
new_part = parts[2][1:]
old_parts = old_part.split(",")
new_parts = new_part.split(",")
old_start = int(old_parts[0])
old_count = int(old_parts[1]) if len(old_parts) > 1 else 1
new_start = int(new_parts[0])
new_count = int(new_parts[1]) if len(new_parts) > 1 else 1
return (old_start, old_count, new_start, new_count)
def parse_diff(diff_text: str) -> _diff_List[DiffFile]:
if not diff_text or not diff_text.strip():
return []
files: _diff_List[DiffFile] = []
current_file: _diff_Optional[DiffFile] = None
current_hunk: _diff_Optional[DiffHunk] = None
for line in diff_text.split("\n"):
if line.startswith("--- "):
if current_file:
if current_hunk:
current_file.hunks.append(current_hunk)
current_hunk = None
files.append(current_file)
path = line[4:]
if path.startswith("a/"):
path = path[2:]
current_file = DiffFile(old_path=path, new_path="", hunks=[])
elif line.startswith("+++ ") and current_file:
path = line[4:]
if path.startswith("b/"):
path = path[2:]
current_file.new_path = path
elif line.startswith("@@") and current_file:
if current_hunk:
current_file.hunks.append(current_hunk)
hunk_info = parse_hunk_header(line)
if hunk_info:
old_start, old_count, new_start, new_count = hunk_info
current_hunk = DiffHunk(
header = line,
lines = [],
old_start = old_start,
old_count = old_count,
new_start = new_start,
new_count = new_count
)
else:
current_hunk = DiffHunk(
header = line,
lines = [],
old_start = 0,
old_count = 0,
new_start = 0,
new_count = 0
)
elif current_hunk is not None:
current_hunk.lines.append(line)
elif line and not line.startswith("diff ") and not line.startswith("index "):
pass
if current_file:
if current_hunk:
current_file.hunks.append(current_hunk)
files.append(current_file)
return files
def get_line_color(line: str) -> str:
if line.startswith("+"): return "green"
elif line.startswith("-"): return "red"
elif line.startswith("@@"): return "cyan"
return ""
def apply_patch_to_file(patch_text: str, base_dir: str = ".") -> _diff_Tuple[bool, str]:
diff_files = parse_diff(patch_text)
if not diff_files:
return False, "No valid diff found"
results = []
for df in diff_files:
file_path = _diff_Path(base_dir) / df.old_path
if not file_path.exists():
results.append(f"File not found: {file_path}")
continue
try:
with open(file_path, "r", encoding="utf-8") as f:
original_lines = f.read().splitlines(keepends=True)
new_lines = original_lines.copy()
offset = 0
for hunk in df.hunks:
hunk_old_start = hunk.old_start - 1
hunk_old_count = hunk.old_count
replace_start = hunk_old_start + offset
replace_count = hunk_old_count
hunk_new_content: _diff_List[str] = []
for line in hunk.lines:
if line.startswith("+") and not line.startswith("+++"):
hunk_new_content.append(line[1:] + "\n")
elif line.startswith(" ") or (line and not line.startswith(("-", "+", "@@"))):
hunk_new_content.append(line + "\n")
new_lines = new_lines[:replace_start] + hunk_new_content + new_lines[replace_start + replace_count:]
offset += len(hunk_new_content) - replace_count
with open(file_path, "w", encoding="utf-8", newline="") as f:
f.writelines(new_lines)
results.append(f"Patched: {file_path}")
except (OSError, ValueError, IndexError) as e:
_patch_err_result = Result(data=False, errors=[ErrorInfo(kind=ErrorKind.INTERNAL, message=f"Error patching {file_path}: {e}", source="diff_viewer.apply_patch_to_file", original=e)])
return _patch_err_result.data, _patch_err_result.errors[0].message
return True, "\n".join(results)
#endregion: Diff Viewer Operations
def draw_soft_shadow(draw_list: imgui.ImDrawList, p_min: imgui.ImVec2, p_max: imgui.ImVec2, color: imgui.ImVec4, shadow_size: float = 10.0, rounding: float = 0.0) -> None:
r, g, b, a = color.x, color.y, color.z, color.w
steps = int(shadow_size)
if steps <= 0: return
alpha_step = a / steps
for i in range(steps):
current_alpha = a - (i * alpha_step)
current_alpha = current_alpha * (1.0 - (i / steps)**2)
if current_alpha <= 0.01:
continue
expand = float(i)
c_min = imgui.ImVec2(p_min.x - expand, p_min.y - expand)
c_max = imgui.ImVec2(p_max.x + expand, p_max.y + expand)
u32_color = imgui.get_color_u32(imgui.ImVec4(r, g, b, current_alpha))
draw_list.add_rect(
c_min,
c_max,
u32_color,
rounding + expand if rounding > 0 else 0.0,
flags=imgui.ImDrawFlags_.round_corners_all if rounding > 0 else imgui.ImDrawFlags_.none,
thickness=1.0
)
#endregion: Shaders
#region: Command Palette Modal (rendering only; registry lives in src/commands.py)
from src.commands import Command as _CpCommand, fuzzy_match as _cp_fuzzy_match, _close_palette, _execute as _cp_execute
+15
View File
@@ -2,6 +2,21 @@ from dataclasses import dataclass, field
from typing import Optional, Callable, List
@dataclass
class DiffHunk:
header: str
lines: List[str]
old_start: int
old_count: int
new_start: int
new_count: int
@dataclass
class DiffFile:
old_path: str
new_path: str
hunks: List[DiffHunk] = field(default_factory=list)
@dataclass
class PendingPatch:
patch_text: str = ""
+2 -2
View File
@@ -2,8 +2,8 @@ import pytest
import tempfile
import os
from pathlib import Path
from src.diff_viewer import (
parse_diff, DiffFile, DiffHunk, parse_hunk_header,
from src.gui_2 import (
parse_diff, DiffFile, DiffHunk, parse_hunk_header,
get_line_color, apply_patch_to_file
)