feat: Add different comment message for 1st time pulls

database/models/core.py

@@ -297,7 +297,9 @@ class Pull(CodecovBaseModel):
     behind_by_commit = Column(types.Text)
 
     author = relationship(Owner)
-    repository = relationship(Repository, backref=backref("pulls", cascade="delete"))
+    repository = relationship(
+        Repository, backref=backref("pulls", cascade="delete", lazy="dynamic")
+    )
 
     __table_args__ = (Index("pulls_repoid_pullid", "repoid", "pullid", unique=True),)
 

services/notification/notifiers/comment/__init__.py

@@ -8,6 +8,7 @@
 )
 
 from database.enums import Notification
+from database.models import Pull
 from helpers.metrics import metrics
 from services.comparison.types import Comparison
 from services.license import requires_license
@@ -351,18 +352,36 @@ def is_enabled(self) -> bool:
             self.notifier_yaml_settings, dict
         )
 
+    async def is_first_pull(self, comparison: Comparison) -> bool:
+        pull = comparison.pull
+        first_pull = (
+            pull.repository.pulls.with_entities(Pull.id_).order_by(Pull.id_).first()
+        )
+        return first_pull.id_ == pull.id_
+
     async def build_message(self, comparison: Comparison) -> List[str]:
         if self.should_use_upgrade_decoration():
             return self._create_upgrade_message(comparison)
         if self.is_empty_upload():
             return self._create_empty_upload_message()
         if self.should_use_upload_limit_decoration():
             return self._create_reached_upload_limit_message(comparison)
+        if await self.is_first_pull(comparison):
+            return self._create_welcome_message()
         pull_dict = comparison.enriched_pull.provider_pull
         return await self.create_message(
             comparison, pull_dict, self.notifier_yaml_settings
         )
 
+    def _create_welcome_message(self):
+        return [
+            "## Welcome to [Codecov](https://codecov.io) :tada:",
+            "",
+            "Once merged to your default branch, Codecov will compare your coverage reports and display the results in this comment.",
+            "",
+            "Thanks for integrating Codecov - We've got you covered :open_umbrella:",
+        ]
+
     def _create_empty_upload_message(self):
         if self.is_passing_empty_upload():
             return [

services/notification/notifiers/tests/integration/test_comment.py

@@ -10,6 +10,14 @@
 from services.notification.notifiers.comment import CommentNotifier
 
 
+@pytest.fixture
+def is_not_first_pull(mocker):
+    mocker.patch(
+        "services.notification.notifiers.comment.CommentNotifier.is_first_pull",
+        return_value=False,
+    )
+
+
 @pytest.fixture
 def codecove2e_comparison(dbsession, request, sample_report, small_report):
     repository = RepositoryFactory.create(
@@ -319,6 +327,7 @@ def sample_comparison_for_limited_upload(
     )
 
 
+@pytest.mark.usefixtures("is_not_first_pull")
 class TestCommentNotifierIntegration(object):
     @pytest.mark.asyncio
     async def test_notify(self, sample_comparison, codecov_vcr, mock_configuration):

services/notification/notifiers/tests/unit/test_comment.py

@@ -36,6 +36,14 @@
 from services.yaml.reader import get_components_from_yaml
 
 
+@pytest.fixture
+def is_not_first_pull(mocker):
+    mocker.patch(
+        "services.notification.notifiers.comment.CommentNotifier.is_first_pull",
+        return_value=False,
+    )
+
+
 @pytest.fixture
 def sample_comparison_bunch_empty_flags(request, dbsession, mocker):
     """
@@ -500,6 +508,7 @@ async def test__possibly_write_gh_app_login_announcement_enterprise(
         assert mock_write.call_count == 0
 
 
+@pytest.mark.usefixtures("is_not_first_pull")
 class TestCommentNotifier(object):
     @pytest.mark.asyncio
     async def test_is_enabled_settings_individual_settings_false(self, dbsession):
@@ -3864,6 +3873,7 @@ async def test_footer_section_writer_with_project_cov_hidden(self, mocker):
         ]
 
 
+@pytest.mark.usefixtures("is_not_first_pull")
 class TestCommentNotifierInNewLayout(object):
     @pytest.mark.asyncio
     async def test_create_message_files_section_with_critical_files_new_layout(
@@ -4715,3 +4725,29 @@ async def test_write_message_component_section_no_base(
             "| [py_files](urlurl/components?src=pr&el=component) | `50.00% <0.00%> (?)` | |",
         ]
         assert message == expected
+
+
+class TestCommentNotifierWelcome:
+    @pytest.mark.asyncio
+    async def test_build_message(
+        self, dbsession, mock_configuration, mock_repo_provider, sample_comparison
+    ):
+        mock_configuration.params["setup"]["codecov_dashboard_url"] = "test.example.br"
+        notifier = CommentNotifier(
+            repository=sample_comparison.head.commit.repository,
+            title="title",
+            notifier_yaml_settings={"layout": "reach, diff, flags, files, footer"},
+            notifier_site_settings=True,
+            current_yaml={},
+        )
+        result = await notifier.build_message(sample_comparison)
+        expected_result = [
+            "## Welcome to [Codecov](https://codecov.io) :tada:",
+            "",
+            "Once merged to your default branch, Codecov will compare your coverage reports and display the results in this comment.",
+            "",
+            "Thanks for integrating Codecov - We've got you covered :open_umbrella:",
+        ]
+        for exp, res in zip(expected_result, result):
+            assert exp == res
+        assert result == expected_result

tasks/tests/integration/test_notify_task.py

@@ -4,7 +4,7 @@
 import pytest
 
 from database.models import Pull
-from database.tests.factories import CommitFactory, RepositoryFactory
+from database.tests.factories import CommitFactory, PullFactory, RepositoryFactory
 from services.archive import ArchiveService
 from services.notification.notifiers.base import NotificationResult
 from tasks.notify import NotifyTask
@@ -807,6 +807,8 @@ async def test_simple_call_status_and_notifiers(
             repository=repository,
             author=repository.owner,
         )
+        # create another pull so that we don't trigger the 1st time comment message
+        dbsession.add(PullFactory.create(repository=repository, pullid=8))
         commit = CommitFactory.create(
             message="",
             pullid=9,