added metranet lib download in gh actions

.github/workflows/ci.yml

@@ -31,7 +31,12 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-
+      - name: Download metranet
+        run: python get_metranet_lib.py
+        working-directory: ${{github.workspace}}/pyart/testing/
+        env:
+          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
       # Install dependencies
       - name: Setup Conda Environment
         uses: mamba-org/setup-micromamba@v1
@@ -60,7 +65,8 @@ jobs:
         shell: bash -l {0}
         run: |
           python -m pytest -v --cov=./ --cov-report=xml
-
+        env:
+          METRANETLIB_PATH: ${{github.workspace}}/pyart/testing/lib/
       - name: Upload code coverage to Codecov
         uses: codecov/codecov-action@v2.1.0
         with:

pyart/testing/get_metranet_lib.py

@@ -0,0 +1,35 @@
+import boto3 
+import os
+
+BUCKET='pyart'
+ENDPOINT_URL='https://eu-central-1.linodeobjects.com'
+def download_metranet_lib():
+    linode_obj_config = {
+        "aws_access_key_id": os.environ['AWS_ACCESS_KEY_ID'],
+        "endpoint_url": ENDPOINT_URL,
+        'aws_secret_access_key': os.environ['AWS_SECRET_ACCESS_KEY']}
+
+    client = boto3.client("s3", **linode_obj_config)
+
+    current_directory = os.path.dirname(os.path.abspath(__file__))
+    lib_dir = os.path.join(current_directory, 'lib')
+    if not os.path.exists(lib_dir):
+        os.makedirs(lib_dir)
+
+    # List objects in the bucket
+    paginator = client.get_paginator('list_objects_v2')
+    for result in paginator.paginate(Bucket=BUCKET):
+        if 'Contents' in result:
+            for obj in result['Contents']:
+                # Get the object key
+                object_key = obj['Key']
+                # Extract file name from object key
+                file_name = os.path.basename(object_key)
+                # Construct local file path
+                local_file_path = os.path.join(lib_dir, file_name)
+                # Download the object
+                client.download_file(BUCKET, object_key, local_file_path)
+                print(f"Downloaded {object_key} to {local_file_path}")
+
+if __name__ == '__main__':
+    download_metranet_lib()