Reduce download log spam (#1249)

## Motivation

<!-- Why is this change needed? What problem does it solve? -->
<!-- If it fixes an open issue, please link to the issue here -->

## Changes

<!-- Describe what you changed in detail -->

## Why It Works

<!-- Explain why your approach solves the problem -->

## Test Plan

### Manual Testing
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connected via Thunderbolt 4) -->
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### Automated Testing
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src/exo/shared/models/model_cards.py

@@ -627,7 +627,7 @@ async def get_config_data(model_id: ModelId) -> ConfigData:
         "main",
         "config.json",
         target_dir,
-        lambda curr_bytes, total_bytes, is_renamed: logger.info(
+        lambda curr_bytes, total_bytes, is_renamed: logger.debug(
             f"Downloading config.json for {model_id}: {curr_bytes}/{total_bytes} ({is_renamed=})"
         ),
     )
@@ -650,7 +650,7 @@ async def get_safetensors_size(model_id: ModelId) -> Memory:
         "main",
         "model.safetensors.index.json",
         target_dir,
-        lambda curr_bytes, total_bytes, is_renamed: logger.info(
+        lambda curr_bytes, total_bytes, is_renamed: logger.debug(
             f"Downloading model.safetensors.index.json for {model_id}: {curr_bytes}/{total_bytes} ({is_renamed=})"
         ),
     )

src/exo/worker/download/download_utils.py

@@ -463,7 +463,7 @@ async def download_shard(
     allow_patterns: list[str] | None = None,
 ) -> tuple[Path, RepoDownloadProgress]:
     if not skip_download:
-        logger.info(f"Downloading {shard.model_card.model_id=}")
+        logger.debug(f"Downloading {shard.model_card.model_id=}")
 
     revision = "main"
     target_dir = await ensure_models_dir() / str(shard.model_card.model_id).replace(
@@ -476,7 +476,7 @@ async def download_shard(
         allow_patterns = await resolve_allow_patterns(shard)
 
     if not skip_download:
-        logger.info(f"Downloading {shard.model_card.model_id=} with {allow_patterns=}")
+        logger.debug(f"Downloading {shard.model_card.model_id=} with {allow_patterns=}")
 
     all_start_time = time.time()
     file_list = await fetch_file_list_with_cache(

src/exo/worker/download/impl_shard_downloader.py

@@ -3,6 +3,8 @@ from collections.abc import Awaitable
 from pathlib import Path
 from typing import AsyncIterator, Callable
 
+from loguru import logger
+
 from exo.shared.models.model_cards import MODEL_CARDS, ModelCard, ModelId
 from exo.shared.types.worker.shards import (
     PipelineShardMetadata,
@@ -166,7 +168,7 @@ class ResumableShardDownloader(ShardDownloader):
                 yield await task
             # TODO: except Exception
             except Exception as e:
-                print("Error downloading shard:", e)
+                logger.error("Error downloading shard:", e)
 
     async def get_shard_download_status_for_shard(
         self, shard: ShardMetadata