add a shell.nix

.envrc

@@ -0,0 +1 @@
+use nix

afdsew.py

@@ -11,7 +11,7 @@ from bisect import bisect_right
 import re
 import string
 import datetime
-from cStringIO import StringIO
+from io import StringIO
 import arrow
 
 import subprocess
@@ -19,7 +19,6 @@ import sys
 import os
 from os import path
 import shutil
-import urllib2
 import hashlib
 
 import markdown, feedgen.feed as feed
@@ -102,9 +101,9 @@ def setup_afd_feed(result_dir, afd_entries):
     afd_feed.description("NWS Seattle Area Forecast Discussion")
 
     current = None
-    current_md = None
+    current_html = ""
 
-    for afd_entry in sorted(afd_entries, reverse = False, key=lambda e: e["timestamp"] ):
+    for afd_entry in sorted(afd_entries, reverse = True, key=lambda e: e["timestamp"] ):
         eid = afd_entry["timestamp"].strftime("%y-%m-%d-%H%m")
         if not current:
             afd_feed.updated(afd_entry["timestamp"])
@@ -117,23 +116,30 @@ def setup_afd_feed(result_dir, afd_entries):
         with open(entry_md_file, "w") as md_out:
             md_out.write(entry_md)
 
-        item = afd_feed.add_entry()
-        md = markdown.markdown( entry_md )
+        entry_html = markdown.markdown( entry_md )
+        entry_html_file = path.join(result_dir, eid + ".html")
+        logging.info("Writing entry html file: %s", entry_html_file)
+        with open(entry_html_file, "w") as html_out:
+            html_out.write(entry_html)
 
-        if not current_md:
-            current_md = md
+
+        item = afd_feed.add_entry()
+
+        if not current_html:
+            current_html = entry_html
 
         item.title(pformat_time(afd_entry["timestamp"]))
-        item.link(href=("https://afd.fontkeming.fail/SEW/" + eid + ".md"))
-        item.description(md)
+        item.link(href=("https://afd.fontkeming.fail/SEW/" + eid + ".html"))
+        item.description(entry_html)
+        item.summary(entry_html) # XXX: would be nice to only have the summary here...
         item.pubDate(afd_entry["timestamp"])
         item.updated(afd_entry["timestamp"])
         item.guid(eid)
         item.id(eid)
 
     logging.info("Writing current: %s", current)
-    with open( path.join(result_dir, "current.md"), "w") as md_out:
-        md_out.write(current_md)
+    with open( path.join(result_dir, "index.html"), "w") as latest_out:
+        latest_out.write(current_html)
 
     logging.info("Rendering feed file: %s", path.join(result_dir, "AFDSEW.xml"))
 
@@ -143,17 +149,17 @@ def setup_afd_feed(result_dir, afd_entries):
 
 def fetch_feed_files(search_prefix):
 
-    feed_files = glob.glob(path.join(search_prefix+"/raw_SEW/AFDSEW.*"))
+    feed_files = glob.glob(search_prefix+"/raw_SEW/AFDSEW.*")
     return feed_files
 
 def is_new_afd(text, search_prefix):
 
     feed_files = fetch_feed_files(search_prefix)
-    new_hash = hashlib.sha224(text).hexdigest()
+    new_hash = hashlib.sha224(text.encode('utf8')).hexdigest()
 
     for fname in feed_files:
         with open(fname, "r") as f:
-            hash = hashlib.sha224(f.read()).hexdigest()
+            hash = hashlib.sha224(f.read().encode('utf8')).hexdigest()
             if hash == new_hash:
                 return False
 
@@ -182,6 +188,7 @@ def fetch(prefix):
     url = "https://www.wrh.noaa.gov/total_forecast/getprod.php?" + \
           "new&wfo=sew&sid=SEW&pil=AFD&toggle=textonly"
     rsp = subprocess.check_output("curl '{url}'".format(url=url), shell=True)
+    rsp = rsp.decode()
 
     afd = parse_afd(rsp)
     ts = afd.get("timestamp")

shell.nix

@@ -0,0 +1,10 @@
+let
+  pkgs = import <nixpkgs> {};
+in pkgs.mkShell {
+  packages = [
+    pkgs.python3
+  ];
+  shellHook = ''
+    source env/bin/activate
+  '';
+}