diff --git a/src/lando/pushlog/pushlog.py b/src/lando/pushlog/pushlog.py
index 263bf406..e1c8cea2 100644
--- a/src/lando/pushlog/pushlog.py
+++ b/src/lando/pushlog/pushlog.py
@@ -1,5 +1,7 @@
+from datetime import datetime
 import logging
 from contextlib import contextmanager
+from typing import Optional
 
 from django.db import transaction
 
@@ -11,8 +13,8 @@
 
 
 @contextmanager
-def PushLogForRepo(repo: Repo):
-    pushlog = PushLog(repo)
+def PushLogForRepo(repo: Repo, user: str):
+    pushlog = PushLog(repo, user)
     try:
         yield pushlog
     except Exception as e:
@@ -31,31 +33,53 @@ def PushLogForRepo(repo: Repo):
 class PushLog:
     repo: Repo
     push: Push
+    user: str
 
     commits: list
+    files: dict[str, list[str]]
 
-    def __repr__(self):
-        return f"<{self.__class__.__name__}({self.repo}, {self.commits})>"
-
-    def __init__(self, repo: Repo):
+    def __init__(self, repo: Repo, user: str, commits: list = [],
+                 files: dict[str, list[str]] = {}):
         self.repo = repo
-        self.commits = []
+        self.user = user
+
+        if not commits:
+            # We cannot us the default value of the argument as a mutable type, and will
+            # get reused on every initialisation.
+            commits = []
+        self.commits = commits
+
+        if not files:
+            # Same a commits above.
+            files = {}
+        self.files = files
+
+    def __repr__(self):
+        return f"<{self.__class__.__name__}({self.repo}, {self.user}, {self.commits})>"
 
     # def add_commit(self, revision: Revision) -> Commit:
-    def add_commit(self, hash: str):
+    def add_commit(self, hash: str, files: list[str]):
         # XXX need a container with
         # author
         # date
         # desc
         # files
         # PARENTS
-        self.commits.append(hash)
+
+        # We create a commit object in memory, but will only write it into the DB when
+        # the whole push is done, and we have a transaction open.
+        self.commits.append(Commit(hash=hash, date=datetime.now()))
+        # We can only attach files to the Commit when it exists in the DB, so we hold
+        # them here in the meantime.
+        self.files[hash] = files
 
     @transaction.atomic
     def record_push(self):
-        push = Push.objects.create(self.repo)
+        """Flush all push data to the database"""
+        push = Push.objects.create(repo=self.repo, user=self.user)
         for commit in self.commits:
-            commit = Commit.objects.create(self.repo, hash=hash)
+            commit.save()
+            commit.add_files(self.files[commit.hash])
             push.commits.add(commit)
 
         push.save()
diff --git a/src/lando/pushlog/tests/conftest.py b/src/lando/pushlog/tests/conftest.py
index ea15b235..a5e3592d 100644
--- a/src/lando/pushlog/tests/conftest.py
+++ b/src/lando/pushlog/tests/conftest.py
@@ -1,5 +1,4 @@
 from datetime import datetime
-
 import pytest
 
 from lando.main.models import Repo
diff --git a/src/lando/pushlog/tests/test_pushlog.py b/src/lando/pushlog/tests/test_pushlog.py
index a9dd7f03..0f97b928 100644
--- a/src/lando/pushlog/tests/test_pushlog.py
+++ b/src/lando/pushlog/tests/test_pushlog.py
@@ -7,25 +7,26 @@
 def test__pushlog__PushLog(make_repo):
     repo = make_repo(1)
 
-    with PushLogForRepo(repo) as pushlog:
+    with PushLogForRepo(repo, 'user@moz.test') as pushlog:
         print(pushlog)
         # r = pushlog.add_revision(...)
         # r.add_files( ...)
 
+    raise AssertionError('unfinished')
 
 @pytest.mark.django_db()
 def test__pushlog__PushLog_no_commit_on_exception(make_repo):
     repo = make_repo(1)
 
     try:
-        with PushLogForRepo(repo) as pushlog:
+        with PushLogForRepo(repo, 'user@moz.test') as pushlog:
             print(pushlog)
             raise Exception()
 
     except Exception:
         pass
 
-    assert False  # XXX test that pushlog not updated
+    raise AssertionError('unfinished')
 
 
 @pytest.mark.django_db()
@@ -33,9 +34,11 @@ def test__pushlog__PushLog__no_deadlock(make_repo):
     repo1 = make_repo(1)
     repo2 = make_repo(2)
 
-    with PushLogForRepo(repo1) as pushlog1:
-        with PushLogForRepo(repo2) as pushlog2:
+    with PushLogForRepo(repo1, 'user1@moz.test') as pushlog1:
+        with PushLogForRepo(repo2, 'user2@moz.test') as pushlog2:
             print(pushlog1)
             print(pushlog2)
             # r = pushlog.add_revision(...)
             # r.add_files( ...)
+
+    raise AssertionError('unfinished')