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problemsolving
Records problems solved in github pages WIP
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import os
import subprocess
from datetime import datetime
import re
import html
# Paths
REPO_DIR = '.'
TARGET_DIR = './chirpy'
# Language mapping
LANG_MAP = {
".py": "python",
".rs": "rust",
".c": "c",
".cpp": "cpp",
".cs": "csharp",
".js": "javascript",
".ts": "typescript",
".go": "go"
}
# Get last commit info
def get_commit_info(file_path):
result = subprocess.run(
["git", "log", "--follow", file_path],
cwd=REPO_DIR,
capture_output=True,
text=True
)
if result.stdout.strip():
ln = result.stdout.strip().split("\n")
commit_msg = ln[3:]
commit_date_str = ln[2].replace("Date:","").strip()
commit_date = datetime.strptime(commit_date_str, "%a %b %d %H:%M:%S %Y %z")
return commit_date, commit_msg
return None, None
# Convert HTML to Markdown and ensure all links use https
def html_to_markdown(html_content):
text = html_content
text = re.sub(r'<(script|style).*?>.*?</\1>', '', text, flags=re.DOTALL).lstrip()
text = re.sub(r'<h[1-6]>\s*(.*?)</h[1-6]>', r'## \1', text).lstrip()
# Convert links to Markdown and force https
def replace_link(m):
url = m.group(1).replace("http://", "https://")
label = m.group(2)
return f"[{label}]({url})"
text = re.sub(r'<a .*?href="(.*?)".*?>(.*?)</a>', replace_link, text)
text = re.sub(r'<img .*?src=[\'"](.*?)[\'"].*?>', r'', text)
text = re.sub(r'<(b|strong)>(.*?)</\1>', r'**\2**', text)
text = re.sub(r'<(i|em)>(.*?)</\1>', r'*\2*', text)
text = re.sub(r'<pre>(.*?)</pre>', lambda m: f'```\n{html.unescape(m.group(1))}\n```', text, flags=re.DOTALL)
text = re.sub(r'<p.*?>', '\n\n', text)
text = re.sub(r'</p>', '\n', text)
text = re.sub(r'<br\s*/?>', '\n', text)
text = re.sub(r'<.*?>', '', text)
text = re.sub(r'\n\s*\n', '\n\n', text)
return html.unescape(text.strip())
# Extract problem statement
def extract_problem_statement(solution_folder):
readme_path = os.path.join(REPO_DIR, solution_folder, "README.md")
if os.path.exists(readme_path):
with open(readme_path, "r", encoding="utf-8") as f:
html_content = f.read()
markdown_text = html_to_markdown(html_content)
return markdown_text.lstrip()
return "Problem statement not found."
# Ensure target directory exists
os.makedirs(TARGET_DIR, exist_ok=True)
# Process all solution files
for root, _, files in os.walk(REPO_DIR):
if "chirpy" in root:
continue
for file in files:
ext = os.path.splitext(file)[1]
if ext in LANG_MAP:
solution_file = os.path.join(root, file)
lang_tag = LANG_MAP[ext]
commit_date, commit_msg = get_commit_info(solution_file)
if not commit_date:
continue
solution_folder = os.path.relpath(root, REPO_DIR)
problem_statement = extract_problem_statement(solution_folder)
# Frontmatter (metadata only)
title = os.path.basename(root).replace("-", " ").title()
tags = [lang_tag]
frontmatter = f"""---
title: "{title}"
date: "{commit_date.isoformat()}"
categories: ["leetcode"]
tags: [{', '.join(tags)}]
layout: post
---
"""
# Read solution code
with open(solution_file, "r", encoding="utf-8") as f:
code_content = f.read()
# Build Markdown content with {% raw %} around code
md_content = f"""{frontmatter}
{problem_statement}
{{% raw %}}
```{lang_tag}
{code_content}
{{% endraw %}}
””” # Save with date-prefixed filename date_prefix = commit_date.strftime(“%Y-%m-%d”) safe_title = title.replace(‘ ‘, ‘-‘) target_file_name = f”{date_prefix}-{safe_title}.md” target_file_path = os.path.join(TARGET_DIR, target_file_name) with open(target_file_path, “w”, encoding=”utf-8”) as f: f.write(md_content)
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print(f"Saved: {target_file_name}")
```
This post is licensed under CC BY 4.0 by the author.