Adding upstream version 0.8.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

eos_downloader/download.py

@@ -0,0 +1,77 @@
+# flake8: noqa: F811
+# pylint: disable=unused-argument
+# pylint: disable=too-few-public-methods
+
+"""download module"""
+
+import os.path
+import signal
+from concurrent.futures import ThreadPoolExecutor
+from threading import Event
+from typing import Iterable, Any
+
+import requests
+import rich
+from rich import console
+from rich.progress import (BarColumn, DownloadColumn, Progress, TaskID,
+                           TextColumn, TimeElapsedColumn, TransferSpeedColumn)
+
+console = rich.get_console()
+done_event = Event()
+
+
+def handle_sigint(signum: Any, frame: Any) -> None:
+    """Progress bar handler"""
+    done_event.set()
+
+
+signal.signal(signal.SIGINT, handle_sigint)
+
+
+class DownloadProgressBar():
+    """
+    Object to manage Download process with Progress Bar from Rich
+    """
+
+    def __init__(self) -> None:
+        """
+        Class Constructor
+        """
+        self.progress = Progress(
+            TextColumn("💾  Downloading [bold blue]{task.fields[filename]}", justify="right"),
+            BarColumn(bar_width=None),
+            "[progress.percentage]{task.percentage:>3.1f}%",
+            "•",
+            TransferSpeedColumn(),
+            "•",
+            DownloadColumn(),
+            "•",
+            TimeElapsedColumn(),
+            "•",
+            console=console
+        )
+
+    def _copy_url(self, task_id: TaskID, url: str, path: str, block_size: int = 1024) -> bool:
+        """Copy data from a url to a local file."""
+        response = requests.get(url, stream=True, timeout=5)
+        # This will break if the response doesn't contain content length
+        self.progress.update(task_id, total=int(response.headers['Content-Length']))
+        with open(path, "wb") as dest_file:
+            self.progress.start_task(task_id)
+            for data in response.iter_content(chunk_size=block_size):
+                dest_file.write(data)
+                self.progress.update(task_id, advance=len(data))
+                if done_event.is_set():
+                    return True
+        # console.print(f"Downloaded {path}")
+        return False
+
+    def download(self, urls: Iterable[str], dest_dir: str) -> None:
+        """Download multuple files to the given directory."""
+        with self.progress:
+            with ThreadPoolExecutor(max_workers=4) as pool:
+                for url in urls:
+                    filename = url.split("/")[-1].split('?')[0]
+                    dest_path = os.path.join(dest_dir, filename)
+                    task_id = self.progress.add_task("download", filename=filename, start=False)
+                    pool.submit(self._copy_url, task_id, url, dest_path)