skips downloading files which already exist

README.md

@@ -0,0 +1,3 @@
+# autoradio
+
+Auto download of mp3s from podcast feeds using a little Python script.

autoradio/autoradio.py

@@ -2,9 +2,23 @@
 import feedparser
 import argparse
 import json
+import subprocess
 from pathlib import Path
 
 
+def download_audio(link, destdir):
+    parts = link.split('/')
+    ptarget = Path(destdir) / Path(parts[-1])
+    target = ptarget.resolve()
+    if target.exists():
+        print("File already exists, skipping")
+    else:
+        args = [ "wget", link, "-o", str(target) ]
+        print(f"downloading {link}")
+        subprocess.run(args)
+
+
+
 def looks_audio(link):
     if 'type' in link:
         return link['type'][:5] == 'audio'
@@ -25,7 +39,9 @@ def get_latest(url, dir):
                 print("Multiple audio links")
             for s in sounds:
                 audio_url = s.get('href', '')
-                print(audio_url)
+                if audio_url:
+                    return audio_url
+    return None
 
 def main():
     ap = argparse.ArgumentParser("autoradio - download audio from RSS feeds")
@@ -38,8 +54,10 @@ def main():
     args = ap.parse_args()
     with open(args.config, 'r') as cfh:
         cf = json.load(cfh)
-        for name, config in cf.items():
+        for name, config in cf['feeds'].items():
             print(f"Checking {name}")
-            get_latest(config['url'], config['dir'])
-
+            url = get_latest(config['url'], config['dir'])
+            if url:
+                print(f"content = {url}")
+                download_audio(url, config['dir'])
 

config.json

@@ -1,10 +1,12 @@
 {
-	"Utility Fog": {
-		"url": "https://www.frogworth.com/utilityfog/feed/",
-		"dir": "./Utility Fog"
-	},
-	"RA Podcast": {
-		"url": "https://ra.co/xml/podcast.xml",
-		"dir": "./RA Podcast"
+	"feeds": {
+		"Utility Fog": {
+			"url": "https://www.frogworth.com/utilityfog/feed/",
+			"dir": "./output/UFog"
+		},
+		"RA Podcast": {
+			"url": "https://ra.co/xml/podcast.xml",
+			"dir": "./output/RA"
+		}
 	}
 }