python_dev/dexit.py at main · helixmap/python_dev · GitHub

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# genindex.py
# @spiralbend 2025-07-23

import os
import stat
import argparse
import datetime
from pathlib import Path

TEMPLATE = """<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Index of /{path}</title>
    <style>
        body {{
            background-color: black;
            color: lime;
            font-family: 'Inconsolata', 'Courier New', monospace;
            white-space: pre;
        }}
        .content {{
            margin-left: 1cm;
        }}
        a {{
            color: lime;
            text-decoration: none;
        }}
        a:hover {{
            text-decoration: underline;
        }}
        .cursor {{
            display: inline-block;
            width: 10px;
            animation: blink 1s steps(1) infinite;
        }}
        @keyframes blink {{
            50% {{ background-color: lime; }}
            100% {{ background-color: transparent; }}
        }}
        .cursor {{
            animation: blink 1s steps(2, start) infinite;
            opacity: 1;
        }}
        @keyframes blink {{
            to {{ opacity: 0; }}
        }}
        .prompt {{
            color:orange
        }}
    </style>
</head>
<body>
<!-- ::spiralbend:: autogenerated index -->
Index of /{path}
total {total_size}
{entries}
<span class="prompt">𝜟·</span> <span class="cursor"><b>_</b></span>
</body>
</html>
"""

TOKEN = "::spiralbend:: autogenerated index"


def human_readable_size(size):
    for unit in ["B", "K", "M", "G", "T"]:
        if size < 1024.0:
            return f"{size:>4.1f}{unit}" if unit != "B" else f"{int(size):>4d}{unit}"
        size /= 1024.0
    return f"{size:.1f}P"


def get_mode_str(mode):
    is_dir = "d" if stat.S_ISDIR(mode) else "-"
    perms = "".join(
        (
            ["r", "w", "x"][(mode >> i) & 1]
            if i % 3 != 2
            else (["x", "x", "x"][((mode >> i) & 1)] if (mode >> (i - 1)) & 1 else "-")
        )
        for i in reversed(range(9))
    )
    return f"{is_dir}{perms}."


def classify_suffix(st_mode, is_dir, full_path):
    if is_dir:
        return "/"
    elif stat.S_ISLNK(st_mode):
        return "@"
    elif stat.S_ISFIFO(st_mode):
        return "|"
    elif stat.S_ISSOCK(st_mode):
        return "="
    elif os.access(full_path, os.X_OK):
        return "*"
    else:
        return ""


def format_entry(mode, nlink, size, mtime, name, href, is_dir):
    size_str = human_readable_size(size) if not is_dir else ""
    date_str = mtime.strftime("%b %e %H:%M")
    return f'{mode:11} {nlink:>2} {size_str:>6} {date_str} <a href="{href}">{name}</a>'


def build_index(dirpath, rel_dir, dirnames, filenames, include_dotfiles):
    entries = []
    total_size = 0

    # Parent directory link
    rel_parent = os.path.relpath(os.path.join(dirpath, ".."), dirpath)
    entries.append(
        format_entry(
            "drwxr-xr-x.", 1, 0, datetime.datetime.now(), "..", rel_parent, True
        )
    )

    all_entries = sorted(dirnames + filenames, key=str.lower)
    for name in all_entries:
        if not include_dotfiles and name.startswith("."):
            continue
        full_path = os.path.join(dirpath, name)
        try:
            st = os.lstat(full_path)
        except FileNotFoundError:
            continue
        mode_str = get_mode_str(st.st_mode)
        mtime = datetime.datetime.fromtimestamp(st.st_mtime)
        size = st.st_size
        is_dir = stat.S_ISDIR(st.st_mode)
        suffix = classify_suffix(st.st_mode, is_dir, full_path)
        display_name = name + suffix
        href = f"{name}/" if is_dir else name
        entries.append(
            format_entry(mode_str, st.st_nlink, size, mtime, display_name, href, is_dir)
        )
        total_size += size

    return TEMPLATE.format(
        path=rel_dir if rel_dir != "." else "",
        entries="\n".join(entries),
        total_size=human_readable_size(total_size),
    )


def process_dir(root, include_dotfiles=False, verbose=False):
    for dirpath, dirnames, filenames in os.walk(root):
        rel_dir = os.path.relpath(dirpath, root)
        if (
            rel_dir != "."
            and not include_dotfiles
            and any(part.startswith(".") for part in rel_dir.split(os.sep))
        ):
            continue

        index_path = os.path.join(dirpath, "index.html")
        index_exists = os.path.exists(index_path)
        index_owned = False

        if index_exists:
            try:
                with open(index_path, "r") as f:
                    if TOKEN in f.read():
                        index_owned = True
                    else:
                        if verbose:
                            print(f"Skipping existing index (no token): {index_path}")
                        continue
            except Exception as e:
                if verbose:
                    print(f"Error reading {index_path}: {e}")
                continue

        html = build_index(dirpath, rel_dir, dirnames, filenames, include_dotfiles)

        try:
            with open(index_path, "w") as f:
                f.write(html)
            if verbose:
                action = "Updated" if index_owned else "Created"
                print(f"{action} index: {index_path}")
        except PermissionError:
            if verbose:
                print(f"Permission denied: {index_path}")


if __name__ == "__main__":
    parser = argparse.ArgumentParser(
        description="Generate terminal-style index.html files for a directory tree."
    )
    parser.add_argument(
        "root", nargs="?", default=".", help="Root directory to start from (default: .)"
    )
    parser.add_argument(
        "--include-dotfiles",
        action="store_true",
        help="Include dotfiles and dot directories",
    )
    parser.add_argument(
        "--verbose", action="store_true", help="Print progress while generating indexes"
    )
    args = parser.parse_args()
    process_dir(args.root, include_dotfiles=args.include_dotfiles, verbose=args.verbose)