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feat(debug): add download output verification logging

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Add comprehensive debug logging to diagnose N_m3u8DL-RE download failures where the process exits successfully but produces no output files.
This commit is contained in:
Andy
2026-01-24 10:33:40 -07:00
parent 6f5f25fa9b
commit e3767716f3
4 changed files with 210 additions and 5 deletions
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45
unshackle/core/manifests/hls.py
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@@ -650,6 +650,44 @@ class HLS:
# finally merge all the discontinuity save files together to the final path
segments_to_merge = find_segments_recursively(save_dir)
if debug_logger:
debug_logger.log(
level="DEBUG",
operation="manifest_hls_download_complete",
message="HLS download complete, preparing to merge",
context={
"track_id": getattr(track, "id", None),
"track_type": track.__class__.__name__,
"save_dir": str(save_dir),
"save_dir_exists": save_dir.exists(),
"segments_found": len(segments_to_merge),
"segment_files": [f.name for f in segments_to_merge[:10]], # Limit to first 10
"downloader": downloader.__name__,
"skip_merge": skip_merge,
},
)
if not segments_to_merge:
error_msg = f"No segment files found in output directory: {save_dir}"
if debug_logger:
all_contents = list(save_dir.iterdir()) if save_dir.exists() else []
debug_logger.log(
level="ERROR",
operation="manifest_hls_download_no_segments",
message=error_msg,
context={
"track_id": getattr(track, "id", None),
"track_type": track.__class__.__name__,
"save_dir": str(save_dir),
"save_dir_exists": save_dir.exists(),
"directory_contents": [str(p) for p in all_contents],
"downloader": downloader.__name__,
"skip_merge": skip_merge,
},
)
raise FileNotFoundError(error_msg)
if len(segments_to_merge) == 1:
shutil.move(segments_to_merge[0], save_path)
else:
@@ -889,7 +927,8 @@ class HLS:
elif key.keyformat and key.keyformat.lower() == WidevineCdm.urn:
return key
elif key.keyformat and key.keyformat.lower() in {
f"urn:uuid:{PR_PSSH.SYSTEM_ID}", "com.microsoft.playready"
f"urn:uuid:{PR_PSSH.SYSTEM_ID}",
"com.microsoft.playready",
}:
return key
else:
@@ -927,9 +966,7 @@ class HLS:
pssh=WV_PSSH(key.uri.split(",")[-1]),
**key._extra_params, # noqa
)
elif key.keyformat and key.keyformat.lower() in {
f"urn:uuid:{PR_PSSH.SYSTEM_ID}", "com.microsoft.playready"
}:
elif key.keyformat and key.keyformat.lower() in {f"urn:uuid:{PR_PSSH.SYSTEM_ID}", "com.microsoft.playready"}:
drm = PlayReady(
pssh=PR_PSSH(key.uri.split(",")[-1]),
pssh_b64=key.uri.split(",")[-1],