From eadec07dde4c9935db51977ef6c070b1fb368b01 Mon Sep 17 00:00:00 2001
From: Mark Nottingham <mnot@mnot.net>
Date: Mon, 19 Aug 2024 11:22:37 +1000
Subject: [PATCH] a bit prettier

---
 lib/dir_listing.py | 82 ++++++++++++++++++++++++++++++++++------------
 1 file changed, 61 insertions(+), 21 deletions(-)

diff --git a/lib/dir_listing.py b/lib/dir_listing.py
index e6032a4..5ef57c8 100644
--- a/lib/dir_listing.py
+++ b/lib/dir_listing.py
@@ -7,7 +7,7 @@
 ignore_prefixes = ['.', '_']
 sep = "\n\n---\n\n"
 
-def spider (directory):
+def spider(directory, reverse=False):
     index = []
     sys.stderr.write(f"* scanning {directory}...\n")
     dirs = []
@@ -15,16 +15,25 @@ def spider (directory):
     for i in os.scandir(directory):
         if filter_thing(i):
             if i.is_dir():
-                dirs.append(i.name)
+                dirs.append(i)
             elif i.is_file():
-                files.append(i.name)
-    for name in nat_sort(dirs):
-        index.append(f"- [{pretty_dir(name)}]({name}/README.md)")
-    for name in nat_sort(files):
-        index.append(f"- [{name}]({name})")
+                files.append(i)
+    for dir_ in nat_sort(dirs, reverse):
+        extra = []
+        if path.exists(f"{dir_.path}/agenda.md"):
+            extra.append(f"[agenda]({dir_.name}/agenda.md)")
+        if path.exists(f"{dir_.path}/minutes.md"):
+            extra.append(f"[minutes]({dir_.name}/minutes.md)")
+        extra_str = ""
+        if extra:
+            extra_str = f": {', '.join(extra)}"
+        index.append(f"- [{pretty_dir(dir_.name)}]({dir_.name}/){extra_str}")
+    for file_ in nat_sort(files):
+        pretty_name, extra = pretty_file(file_)
+        index.append(f"- [{pretty_name}]({file_.name}) {extra}")
     write_index(directory, index)
-    for dir_name in dirs:
-        spider(path.join(directory, dir_name))
+    for dir_ in dirs:
+        spider(path.join(directory, dir_.name))
 
 def filter_thing(thing):
     if thing.name in ignore_things: return False
@@ -32,21 +41,40 @@ def filter_thing(thing):
         if thing.name.startswith(ignore): return False
     return True
 
-def nat_sort(l):
+def nat_sort(l, reverse=False):
     convert = lambda text: int(text) if text.isdigit() else text.lower() 
-    alphanum_key = lambda key: [ convert(c) for c in re.split('([0-9]+)', key) ] 
-    return sorted(l, key = alphanum_key)
+    alphanum_key = lambda key: [ convert(c) for c in re.split('([0-9]+)', key.name) ] 
+    out = sorted(l, key = alphanum_key)
+    if reverse:
+        out.reverse()
+    return out
 
-def pretty_dir(name):
-    if "/" in name:
+def pretty_dir(name, with_path=False):
+    if name.endswith("/"):
+        name = name[:-1]
+    if "/" in name and with_path:
+        cleaned = " : ".join(name.split("/"))
+    else:
         cleaned = name.split("/")[-1]
+    if cleaned[:4] == "ietf":
+        cleaned = f"IETF {cleaned[4:]}"
     else:
-        cleaned = name
-    if cleaned.startswith("ietf"):
-        return f"IETF {cleaned[4:]}"
-    if cleaned.startswith("interim-"):
-        return f"Interim meeting: {cleaned[8:]}"
-    return f"{name}/"
+        cleaned = cleaned.title()
+    return f"🗂️ {cleaned}"
+
+def pretty_file(file_):
+    name = file_.name
+    ext = ""
+    extra = ""
+    if "." in file_.name:
+        name, ext = file_.name.rsplit(".", 1)
+        if ext.lower() not in ['md', 'html']:
+            extra = f"_{ext}_"
+    name = re.sub(r"([a-z])-", r"\1 ", name)
+    name = re.sub(r"-([a-z])", r" \1", name)
+    if ext.lower() == "md" and "agenda" not in name and "minutes" not in name:
+        return extract_md_heading(file_, name), extra
+    return name.title().replace("Http", "HTTP"), extra
 
 def write_index(directory, index):
     readme_path = f"{directory}/README.md"
@@ -65,8 +93,20 @@ def write_index(directory, index):
             fh.write(f"## {pretty_dir(directory)}\n\n")
         fh.write("\n".join(index))
 
+def extract_md_heading(fileobj, fallback):
+    try:
+        with open(fileobj.path) as fh:
+            lines = fh.readlines()
+    except IOError as why:
+        sys.stderr.write(f"Error reading {filename}: {why}\n")
+        return fallback
+    for line in lines:
+        if line.startswith("# "):
+            return line[1:].strip()
+    return fallback
 
 
 if __name__ == "__main__":
     import sys
-    spider(sys.argv[1])
+    for directory in sys.argv[1:]:
+        spider(directory, True)