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#!/usr/bin/env python3
from colorama import Fore, Style
import sys
import re
ansi_escape = re.compile(r'\x1B\[[0-?]*[ -/]*[@-~]')
stat_re = re.compile(r'(| \d+ )(\+*)(\-*)')
lines_re = re.compile(r'@@ (-\d+,\d+ \+\d+,\d+) @@')
patch = sys.stdin.read().replace("\r\n", "\n")
patch = ansi_escape.sub('', patch)
hit_diff = False
for line in patch.split("\n"):
if line.startswith("diff "):
hit_diff = True
print(f"{Style.BRIGHT}{line}{Style.RESET_ALL}")
continue
if hit_diff:
if line.startswith("-"):
print(f"{Fore.RED}{line}{Style.RESET_ALL}")
elif line.startswith("+"):
print(f"{Fore.GREEN}{line}{Style.RESET_ALL}")
elif line.startswith(" "):
print(line)
else:
if line.startswith("@@"):
line = lines_re.sub(f"{Fore.CYAN}@@ \\1 @@{Style.RESET_ALL}",
line)
print(line)
else:
print(f"{Style.BRIGHT}{line}{Style.RESET_ALL}")
else:
if line.startswith(" ") and "|" in line and ("+" in line or "-" in line):
line = stat_re.sub(
f'\\1{Fore.GREEN}\\2{Fore.RED}\\3{Style.RESET_ALL}',
line)
print(line)
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