MLIA-460 Revisit backend management

- Provide command for backend installation in case
  if backend is not available
- Fix issue with connection timeout during downloading
- Show installation tools output only in verbose mode

Change-Id: Ic0e495ba19879cc2cda4fd0bce20b57ba896cfeb

2 files changed, 32 insertions, 12 deletions

diff --git a/src/mlia/utils/download.py b/src/mlia/utils/download.py
index c8d0b69..e00be28 100644
--- a/src/mlia/utils/download.py
+++ b/src/mlia/utils/download.py
@@ -46,9 +46,10 @@ def download(
     show_progress: bool = False,
     label: str | None = None,
     chunk_size: int = 8192,
+    timeout: int = 30,
 ) -> None:
     """Download the file."""
-    with requests.get(url, stream=True, timeout=10.0) as resp:
+    with requests.get(url, stream=True, timeout=timeout) as resp:
         resp.raise_for_status()
         content_chunks = resp.iter_content(chunk_size=chunk_size)
 
diff --git a/src/mlia/utils/py_manager.py b/src/mlia/utils/py_manager.py
index 5f98fcc..d7821d3 100644
--- a/src/mlia/utils/py_manager.py
+++ b/src/mlia/utils/py_manager.py
@@ -3,10 +3,16 @@
 """Util functions for managing python packages."""
 from __future__ import annotations
 
+import logging
+import subprocess  # nosec
 import sys
 from importlib.metadata import distribution
 from importlib.metadata import PackageNotFoundError
-from subprocess import check_call  # nosec
+
+from mlia.core.errors import InternalError
+
+
+logger = logging.getLogger(__name__)
 
 
 class PyPackageManager:
@@ -45,16 +51,29 @@ class PyPackageManager:
         """Execute pip command."""
         assert sys.executable, "Unable to launch pip command"
 
-        check_call(
-            [
-                sys.executable,
-                "-m",
-                "pip",
-                "--disable-pip-version-check",
-                subcommand,
-                *params,
-            ]
-        )
+        try:
+            output = subprocess.check_output(  # nosec
+                [
+                    sys.executable,
+                    "-m",
+                    "pip",
+                    "--disable-pip-version-check",
+                    subcommand,
+                    *params,
+                ],
+                stderr=subprocess.STDOUT,
+                text=True,
+            )
+            returncode = 0
+        except subprocess.CalledProcessError as err:
+            output = err.output
+            returncode = err.returncode
+
+        for line in output.splitlines():
+            logger.debug(line.rstrip())
+
+        if returncode != 0:
+            raise InternalError("Unable to install python package")
 
 
 def get_package_manager() -> PyPackageManager: