Improved spinner

src/cli/cpl/cli/command/project/build.py

@@ -5,6 +5,7 @@ from pathlib import Path
 import click
 
 from cpl.cli.cli import cli
+from cpl.cli.model.project import Project
 from cpl.cli.utils.structure import get_project_by_name_or_path
 from cpl.cli.utils.venv import ensure_venv, get_venv_python
 from cpl.core.configuration import Configuration
@@ -42,23 +43,33 @@ def build(project: str, dist: str = None, skip_py_build: bool = None, verbose: b
     create_pyproject_toml(project, dist_path / project.name)
     python = str(get_venv_python(venv))
 
-    Console.spinner(
+    result = Console.spinner(
         "Building python package...",
-        lambda: (
-            subprocess.run(
-                [
-                    python,
-                    "-m",
-                    "build",
-                    "--outdir",
-                    str(dist_path / project.name),
-                    str(dist_path / project.name),
-                ],
-                check=True,
-                stdin=subprocess.DEVNULL if not verbose else None,
-                stdout=subprocess.DEVNULL if not verbose else None,
-                stderr=subprocess.DEVNULL if not verbose else None,
-            )
+        lambda: subprocess.run(
+            [
+                python,
+                "-m",
+                "build",
+                "--outdir",
+                str(dist_path / project.name),
+                str(dist_path / project.name),
+            ],
+            check=True,
+            stdin=subprocess.DEVNULL if not verbose else None,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
         ),
     )
+
+    if result is None:
+        raise RuntimeError("Build process did not run")
+
+    if verbose and result.stdout is not None:
+        Console.write_line(result.stdout.decode())
+
+    if result.returncode != 0 and result.stderr is not None:
+        if result.stderr is not None:
+            Console.error(str(result.stderr.decode()))
+        raise RuntimeError(f"Build process failed with exit code {result.returncode}")
+
     Console.write_line("    Done!")