fix: gcloud credentials as env var

.gitignore

@@ -8,8 +8,7 @@
 /static_root/
 /build/
 dist/
-aws-credentials
+storage-credentials
 .mypy_cache
 .idea
 .python-version
-gcloud-credentials.json

Makefile

@@ -1,10 +1,10 @@
 SHELL := /usr/bin/env bash
 
 test:
-	. aws-credentials && ./runtests.py
+	. storage-credentials && ./runtests.py
 
 test-coverage:
-	. aws-credentials && coverage run --source collectfast ./runtests.py
+	. storage-credentials && coverage run --source collectfast ./runtests.py
 
 distribute:
 	pip install --upgrade wheel twine setuptools

README.rst

@@ -138,7 +138,7 @@ open and welcome.
 
 The test suite is built to run against an S3 bucket. To be able to test locally
 you need to provide AWS credentials for a bucket to test against. Add the
-credentials to a file named `aws-credentials` in the root of the project
+credentials to a file named `storage-credentials` in the root of the project
 directory:
 
 .. code:: bash

collectfast/tests/settings.py

@@ -1,5 +1,6 @@
 import os
 import pathlib
+import tempfile
 
 from google.oauth2 import service_account
 
@@ -45,7 +46,14 @@
 AWS_S3_HOST = "s3.eu-central-1.amazonaws.com"
 
 # Google Cloud
-GS_CREDENTIALS = service_account.Credentials.from_service_account_file(
-    str(base_path / "gcloud-credentials.json")
-)
+gcloud_credentials_json = os.environ.get('GCLOUD_CREDENTIALS', "").strip()
+if not gcloud_credentials_json:
+    GS_CREDENTIALS = None
+else:
+    with tempfile.NamedTemporaryFile() as file:
+        file.write(gcloud_credentials_json.encode())
+        file.read()
+        GS_CREDENTIALS = service_account.Credentials.from_service_account_file(
+            file.name
+        )
 GS_BUCKET_NAME = "roasted-dufus"