Check if artifact exists before trying to install it

ansible_collection.py

@@ -51,6 +51,14 @@ class AnsibleCollection:
             return load(file, Loader=CSafeLoader)
 
     def install(self, destdir: Union[str, Path]) -> None:
+        artifact = self.collection_srcdir / Path(
+            f"{self.namespace}-{self.name}-{self.version}.tar.gz"
+        )
+        if not artifact.exists() and not artifact.is_file():
+            raise CollectionError(
+                f"{artifact} does not exist! Did you run %ansible_collection_build?"
+            )
+
         args = (
             "ansible-galaxy",
             "collection",
@@ -58,11 +66,12 @@ class AnsibleCollection:
             "-n",
             "-p",
             str(destdir),
-            f"{self.namespace}-{self.name}-{self.version}.tar.gz",
+            str(artifact),
         )
         print(f"Running: {args}")
         print()
         subprocess.run(args, check=True, cwd=self.collection_srcdir)
+        print()
 
     def write_filelist(self, filelist: Path) -> None:
         filelist.parent.mkdir(parents=True, exist_ok=True)
@@ -134,5 +143,5 @@ def main():
 if __name__ == "__main__":
     try:
         main()
-    except CollectionError as err:
+    except (CollectionError, subprocess.CalledProcessError) as err:
         sys.exit(err)