Hash AWS Lambda test functions based on current revision

sentry_sdk/utils.py

@@ -95,16 +95,11 @@ def _get_debug_hub():
     pass
 
 
-def get_default_release():
+def get_git_revision():
     # type: () -> Optional[str]
-    """Try to guess a default release."""
-    release = os.environ.get("SENTRY_RELEASE")
-    if release:
-        return release
-
     with open(os.path.devnull, "w+") as null:
         try:
-            release = (
+            revision = (
                 subprocess.Popen(
                     ["git", "rev-parse", "HEAD"],
                     stdout=subprocess.PIPE,
@@ -116,10 +111,21 @@ def get_default_release():
                 .decode("utf-8")
             )
         except (OSError, IOError):
-            pass
+            return None
 
-        if release:
-            return release
+    return revision
+
+
+def get_default_release():
+    # type: () -> Optional[str]
+    """Try to guess a default release."""
+    release = os.environ.get("SENTRY_RELEASE")
+    if release:
+        return release
+
+    release = get_git_revision()
+    if release is not None:
+        return release
 
     for var in (
         "HEROKU_SLUG_COMMIT",

tests/integrations/aws_lambda/client.py

@@ -8,6 +8,7 @@
 import tempfile
 
 from sentry_sdk.consts import VERSION as SDK_VERSION
+from sentry_sdk.utils import get_git_revision
 
 AWS_REGION_NAME = "us-east-1"
 AWS_CREDENTIALS = {
@@ -226,7 +227,8 @@ def run_lambda_function(
     # Making a unique function name depending on all the code that is run in it (function code plus SDK version)
     # The name needs to be short so the generated event/envelope json blobs are small enough to be output
     # in the log result of the Lambda function.
-    function_hash = hashlib.shake_256((code + SDK_VERSION).encode("utf-8")).hexdigest(5)
+    rev = get_git_revision() or SDK_VERSION
+    function_hash = hashlib.shake_256((code + rev).encode("utf-8")).hexdigest(6)
     fn_name = "test_{}".format(function_hash)
     full_fn_name = "{}_{}".format(
         fn_name, runtime.replace(".", "").replace("python", "py")