improvements

main.py

@@ -1,9 +1,13 @@
+import hashlib
 import shutil
 import time
 import urllib.parse
-from datetime import datetime, timezone
+import uuid
+from datetime import datetime, timedelta, timezone
 from pathlib import Path
+from typing import Optional
 
+import ffmpeg
 import structlog
 from podgen import Episode, Media, Podcast
 from pydantic import BaseModel, Field
@@ -13,7 +17,22 @@ from watchdog.observers import Observer
 from process import AudioProcessor
 from settings import Settings
 
-EXTENSIONS = [".m4a"]
+EXTENSIONS = [
+    ".aac",
+    ".ac3",
+    ".aif",
+    ".aiff",
+    ".ape",
+    ".flac",
+    ".m4a",
+    ".mp3",
+    ".ogg",
+    ".opus",
+    ".ra",
+    ".ram",
+    ".wav",
+    ".wma",
+]
 META_FILENAME = "meta.json"
 DESCRIPTION_EXTENSION = "txt"
 
@@ -24,6 +43,7 @@ class PodcastMeta(BaseModel):
     name: str
     description: str
     explicit: bool = Field(default=True)
+    output_name: str = Field(default_factory=lambda: str(uuid.uuid4()))
 
 
 class PodcastGenerator:
@@ -56,6 +76,23 @@ class PodcastGenerator:
         with open(self.settings.directory / feed_name / META_FILENAME, "r") as f:
             return PodcastMeta.model_validate_json(f.read())
 
+    def get_audio_duration(self, filename: Path) -> Optional[timedelta]:
+        probe = ffmpeg.probe(str(filename))
+        stream = next(
+            (stream for stream in probe["streams"] if stream["codec_type"] == "audio"),
+            None,
+        )
+        return (
+            timedelta(seconds=float(stream["duration"]))
+            if stream is not None and "duration" in stream
+            else None
+        )
+
+    def generate_all_feeds(self) -> None:
+        shutil.rmtree(self.settings.output_directory, ignore_errors=True)
+        for feed_name in self.settings.feeds:
+            self.generate_feed(feed_name)
+
     def generate_feed(self, feed_name: str) -> None:
         log.info("Generating feed for %s", feed_name)
 
@@ -64,16 +101,20 @@ class PodcastGenerator:
         feed = Podcast(
             name=podcast_meta.name,
             description=podcast_meta.description,
-            website=urllib.parse.urljoin(self.settings.url_base, feed_name),
+            website=urllib.parse.urljoin(
+                self.settings.url_base, podcast_meta.output_name
+            ),
             explicit=podcast_meta.explicit,
-            feed_url=urllib.parse.urljoin(self.settings.url_base, f"{feed_name}.xml"),
+            feed_url=urllib.parse.urljoin(
+                self.settings.url_base, f"{podcast_meta.output_name}/feed.xml"
+            ),
         )
 
-        output_dir = self.settings.output_directory / feed_name
+        output_dir = self.settings.output_directory / podcast_meta.output_name
         feed_episodes_dir = self.settings.directory / feed_name / "episodes"
 
         shutil.rmtree(output_dir, ignore_errors=True)
-        output_dir.mkdir()
+        output_dir.mkdir(parents=True)
 
         for file in feed_episodes_dir.glob("*"):
             if file.suffix not in EXTENSIONS:
@@ -89,7 +130,13 @@ class PodcastGenerator:
                 except AttributeError:
                     file_date = datetime.now().timestamp()
 
+            h = hashlib.sha256()
+            with open(file, "rb") as f:
+                for byte_block in iter(lambda: f.read(4096), b""):
+                    h.update(byte_block)
+
             episode = Episode(
+                id=h.hexdigest(),
                 title=file.stem,
                 media=Media(
                     urllib.parse.urljoin(
@@ -97,6 +144,7 @@ class PodcastGenerator:
                         urllib.parse.quote(f"{feed_name}/{file.name}"),
                     ),
                     file.stat().st_size,
+                    duration=self.get_audio_duration(file),
                 ),
                 publication_date=datetime.fromtimestamp(file_date, timezone.utc),
             )
@@ -106,12 +154,14 @@ class PodcastGenerator:
             )
             if description_filename.is_file():
                 with open(description_filename, "r") as f:
-                    episode.long_summary = f.read()
+                    content = f.read()
+                    if content.strip() != "":
+                        episode.long_summary = content.strip()
 
             shutil.copyfile(file, output_dir / file.name)
             feed.add_episode(episode)
 
-        output_feed_file = self.settings.output_directory / f"{feed_name}.xml"
+        output_feed_file = output_dir / "feed.xml"
         log.info("Saving feed to %s", output_feed_file)
         with open(output_feed_file, "w") as f:
             feed.rss_file(f)
@@ -120,16 +170,22 @@ class PodcastGenerator:
 class GeneratorEventHandler(FileSystemEventHandler):
     def __init__(self, settings: Settings):
         self.settings = settings
-        self.audio_processor = AudioProcessor()
         self.generator = PodcastGenerator(settings=settings)
+        self.audio_processor = AudioProcessor(
+            generate_callback=lambda: self.generator.generate_all_feeds()
+        )
+        self.generate_time: Optional[datetime] = None
 
         self.audio_processor.start_processing()
+        self.generator.generate_all_feeds()
 
         super().__init__()
 
     def on_any_event(self, event):
         src_path = Path(event.src_path)
 
+        # log.debug("Got file watch event", e=event)
+
         for feed_name in self.settings.feeds:
             feed_consume_dir = self.settings.directory / feed_name / "consume"
             feed_meta_path = self.settings.directory / feed_name / META_FILENAME
@@ -137,7 +193,11 @@ class GeneratorEventHandler(FileSystemEventHandler):
 
             # if a file is created in a consume directory
             if event.event_type == "created":
-                if src_path.parent != feed_consume_dir:
+                if (
+                    src_path.parent != feed_consume_dir
+                    or src_path.suffix not in EXTENSIONS
+                    or src_path.name.startswith(".")
+                ):
                     continue
 
                 output_path = (
@@ -155,11 +215,14 @@ class GeneratorEventHandler(FileSystemEventHandler):
                     output_path.parent / f"{output_path.stem}.{DESCRIPTION_EXTENSION}",
                     "a",
                 ).close()
-                self.generator.generate_feed(feed_name)
 
             # if a file is modified in the episodes directory or meta has changed
-            if src_path == feed_meta_path or feed_episodes_dir in src_path.parents:
+            if (
-                self.generator.generate_feed(feed_name)
+                src_path == feed_meta_path
+                or feed_episodes_dir in src_path.parents
+                and not event.is_directory
+            ):
+                self.generate_time = datetime.now() + timedelta(minutes=1)
 
 
 if __name__ == "__main__":
@@ -167,17 +230,23 @@ if __name__ == "__main__":
 
     log.info("Loaded settings", settings=settings)
 
+    event_handler = GeneratorEventHandler(settings)
     observer = Observer()
-    observer.schedule(
+    observer.schedule(event_handler, settings.directory, recursive=True)
-        GeneratorEventHandler(settings), settings.directory, recursive=True
-    )
     observer.start()
 
     log.info("Listening for changes at %s...", settings.directory)
 
     try:
         while True:
+            if (
+                event_handler.generate_time is not None
+                and datetime.now() >= event_handler.generate_time
+            ):
+                event_handler.generate_time = None
+                event_handler.generator.generate_all_feeds()
             time.sleep(1)
     finally:
         observer.stop()
         observer.join()
+        observer.join()

process.py

@@ -1,7 +1,10 @@
 import queue
+import shutil
+import tempfile
 import threading
+import time
 from pathlib import Path
-from typing import Optional
+from typing import Callable, Optional
 
 import structlog
 from ffmpeg_normalize import FFmpegNormalize
@@ -9,15 +12,17 @@ from ffmpeg_normalize import FFmpegNormalize
 from settings import Settings
 
 DELETE_INPUTS = Settings().delete_consume_files
+CONSUME_DELAY = Settings().consume_delay
 
 log = structlog.get_logger()
 
 
 class AudioProcessor:
-    def __init__(self):
+    def __init__(self, generate_callback: Callable[[], None]):
         self.queue: queue.Queue[(Path, Path)] = queue.Queue()
         self.is_running = False
         self.processor_thread: Optional[threading.Thread] = None
+        self.generate_callback = generate_callback
 
     def add_file(self, input_filename: Path, output_filename: Path) -> None:
         self.queue.put((input_filename, output_filename))
@@ -46,15 +51,41 @@ class AudioProcessor:
             input_filename=input_filename,
             output_filename=output_filename,
         )
+
+        if not input_filename.is_file():
+            log.error("Could not process non-file", input_filename=input_filename)
+            return
+
+        # wait for file to finish uploading
+        current_size = input_filename.stat().st_size
+        while True:
+            time.sleep(CONSUME_DELAY)
+            if input_filename.stat().st_size != current_size:
+                log.debug(
+                    "Waiting for file to finish uploading",
+                    input_filename=input_filename,
+                )
+                current_size = input_filename.stat().st_size
+                continue
+
+            break
+
+        with tempfile.TemporaryDirectory() as tmp:
+            input_temp_path = Path(tmp) / input_filename.name
+            output_temp_path = Path(tmp) / output_filename.name
+
+            # copy to temp directory
+            shutil.move(input_filename, input_temp_path)
+
             ffmpeg_normalize = FFmpegNormalize(
                 "ebu", audio_codec="aac", audio_bitrate="192k"
             )
-        ffmpeg_normalize.add_media_file(str(input_filename), str(output_filename))
+            ffmpeg_normalize.add_media_file(str(input_temp_path), str(output_temp_path))
             ffmpeg_normalize.run_normalization()
 
-        # delete the original
+            shutil.move(output_temp_path, output_filename)
-        if DELETE_INPUTS:
+
-            output_filename.unlink()
+        self.generate_callback()
 
     def _process_queue(self) -> None:
         while self.is_running:

pyproject.toml

@@ -6,6 +6,7 @@ readme = "README.md"
 requires-python = ">=3.13"
 dependencies = [
     "ffmpeg-normalize>=1.31.0",
+    "ffmpeg-python>=0.2.0",
     "podgen>=1.1.0",
     "pydantic>=2.10.5",
     "pydantic-settings>=2.7.1",

settings.py

@@ -11,5 +11,6 @@ class Settings(BaseSettings):
     feeds: Set[str] = Field(default={"default"})
     url_base: str = Field(default="https://example.com")
     delete_consume_files: bool = Field(default=False)
+    consume_delay: int = Field(default=300)
 
     model_config = SettingsConfigDict(env_nested_delimiter="__", env_prefix="PG_")

uv.lock

@@ -99,6 +99,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/83/8f/2e78af50943e498855802c293f3256e97a12101dccb233e5abd848fd4b8e/ffmpeg_progress_yield-0.11.3-py2.py3-none-any.whl", hash = "sha256:a7277e386d30b27ce513ec50a4a97fee403e48172a5370e05584350ee85db205", size = 11693 },
 ]
 
+[[package]]
+name = "ffmpeg-python"
+version = "0.2.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "future" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/dd/5e/d5f9105d59c1325759d838af4e973695081fbbc97182baf73afc78dec266/ffmpeg-python-0.2.0.tar.gz", hash = "sha256:65225db34627c578ef0e11c8b1eb528bb35e024752f6f10b78c011f6f64c4127", size = 21543 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/d7/0c/56be52741f75bad4dc6555991fabd2e07b432d333da82c11ad701123888a/ffmpeg_python-0.2.0-py3-none-any.whl", hash = "sha256:ac441a0404e053f8b6a1113a77c0f452f1cfc62f6344a769475ffdc0f56c23c5", size = 25024 },
+]
+
 [[package]]
 name = "future"
 version = "1.0.0"
@@ -148,6 +160,7 @@ version = "0.1.0"
 source = { virtual = "." }
 dependencies = [
     { name = "ffmpeg-normalize" },
+    { name = "ffmpeg-python" },
     { name = "podgen" },
     { name = "pydantic" },
     { name = "pydantic-settings" },
@@ -158,6 +171,7 @@ dependencies = [
 [package.metadata]
 requires-dist = [
     { name = "ffmpeg-normalize", specifier = ">=1.31.0" },
+    { name = "ffmpeg-python", specifier = ">=0.2.0" },
     { name = "podgen", specifier = ">=1.1.0" },
     { name = "pydantic", specifier = ">=2.10.5" },
     { name = "pydantic-settings", specifier = ">=2.7.1" },