Merge branch 'use-more-specific-exceptions' into 'linux-debian11'

if a file or directory cannot be found use FileNotFoundError

See merge request mpsd-cs/mpsd-software-environments!10

mpsd-software-environment.py

@@ -173,13 +173,13 @@ def get_release_info(mpsd_release: str, script_dir: Path) -> Tuple[str, str, Lis
       toolchains for the release.
 
     Raises:
-    - Exception: If the release directory does not exist. Run `create_dir_structure()`
-      first.
+    - FileNotFoundError: If the release directory does not exist. Run
+      `create_dir_structure()` first.
     """
     # Get the info for release
     release_base_dir = script_dir / mpsd_release
     if not os.path.exists(release_base_dir):
-        raise Exception(
+        raise FileNotFoundError(
             "Release directory does not exist. Run create_dir_structure() first."
         )
     with os_chdir(release_base_dir):
@@ -254,7 +254,7 @@ def install_environment(
                     cache when installing toolchains. Defaults to False.
 
     Raises:
-        Exception: If a requested toolchain is not available in the specified release.
+        ValueError: If a requested toolchain is not available in the specified release.
 
     Returns:
         None
@@ -292,7 +292,7 @@ def install_environment(
 
     for toolchain in toolchains:
         if toolchain not in available_toolchains:
-            raise Exception(
+            raise ValueError(
                 f"Toolchain '{toolchain}' is not available in release {mpsd_release}."
             )