now using only the new datset version

errors.py

@@ -0,0 +1,45 @@
+from abc import ABC
+
+
+class SetupException(Exception, ABC):
+    reason_for_failure: str
+
+
+class NoDiffsBeforeError(SetupException):
+    reason_for_failure = "Couldn't get the diffs before the first commit"
+
+
+class NoDiffsAfterError(SetupException):
+    reason_for_failure = "Couldn't get the diffs after the last commit"
+
+
+class CantCloneRepoError(SetupException):
+    reason_for_failure = "Couldn't clone the repository"
+
+
+class CantEnsureFullHistoryError(SetupException):
+    reason_for_failure = "Couldn't ensure the full history of the repo (fetch --unshallow)"
+
+
+class CantFetchPRError(SetupException):
+    reason_for_failure = "Couldn't fetch the PR's merge commit"
+
+
+class CantCheckoutCommitError(SetupException):
+    reason_for_failure = (
+        "Coudln't checkout the PR's merge commit (even after fetching the pull/<pr_number>/merge)"
+    )
+
+
+class MultipleFilesError(SetupException):
+    reason_for_failure = (
+        "When requesting the contents of a file, a list of ContentFile was returned"
+    )
+
+
+class NotValidDirectory(SetupException):
+    reason_for_failure = "The directory is not valid"
+
+
+class CantFindBuildFile(SetupException):
+    reason_for_failure = "Couldn't find the build file in the directory"