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-rw-r--r--django/core/management/commands/squashmigrations.py33
-rw-r--r--docs/releases/1.7.2.txt3
-rw-r--r--tests/migrations/test_commands.py39
3 files changed, 62 insertions, 13 deletions
diff --git a/django/core/management/commands/squashmigrations.py b/django/core/management/commands/squashmigrations.py
index 9cd9915574..6f598757b6 100644
--- a/django/core/management/commands/squashmigrations.py
+++ b/django/core/management/commands/squashmigrations.py
@@ -26,7 +26,9 @@ class Command(BaseCommand):
self.verbosity = options.get('verbosity')
self.interactive = options.get('interactive')
- app_label, migration_name = options['app_label'], options['migration_name']
+ app_label = options['app_label']
+ migration_name = options['migration_name']
+ no_optimize = options['no_optimize']
# Load the current graph state, check the app and migration they asked for exists
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
@@ -95,20 +97,25 @@ class Command(BaseCommand):
elif dependency[0] != smigration.app_label:
dependencies.add(dependency)
- if self.verbosity > 0:
- self.stdout.write(self.style.MIGRATE_HEADING("Optimizing..."))
+ if no_optimize:
+ if self.verbosity > 0:
+ self.stdout.write(self.style.MIGRATE_HEADING("(Skipping optimization.)"))
+ new_operations = operations
+ else:
+ if self.verbosity > 0:
+ self.stdout.write(self.style.MIGRATE_HEADING("Optimizing..."))
- optimizer = MigrationOptimizer()
- new_operations = optimizer.optimize(operations, migration.app_label)
+ optimizer = MigrationOptimizer()
+ new_operations = optimizer.optimize(operations, migration.app_label)
- if self.verbosity > 0:
- if len(new_operations) == len(operations):
- self.stdout.write(" No optimizations possible.")
- else:
- self.stdout.write(
- " Optimized from %s operations to %s operations." %
- (len(operations), len(new_operations))
- )
+ if self.verbosity > 0:
+ if len(new_operations) == len(operations):
+ self.stdout.write(" No optimizations possible.")
+ else:
+ self.stdout.write(
+ " Optimized from %s operations to %s operations." %
+ (len(operations), len(new_operations))
+ )
# Work out the value of replaces (any squashed ones we're re-squashing)
# need to feed their replaces into ours
diff --git a/docs/releases/1.7.2.txt b/docs/releases/1.7.2.txt
index 8420b5b303..0fe97a3225 100644
--- a/docs/releases/1.7.2.txt
+++ b/docs/releases/1.7.2.txt
@@ -62,3 +62,6 @@ Bugfixes
* Fixed a migration crash when a field is renamed that is part of an
``index_together`` (:ticket:`23859`).
+
+* Fixed :djadmin:`squashmigrations` to respect the ``--no-optimize`` parameter
+ (:ticket:`23799`).
diff --git a/tests/migrations/test_commands.py b/tests/migrations/test_commands.py
index f4e3878d17..83826e819d 100644
--- a/tests/migrations/test_commands.py
+++ b/tests/migrations/test_commands.py
@@ -543,3 +543,42 @@ class MakeMigrationsTests(MigrationTestBase):
content = cmd("0002", migration_name_0002, "--empty")
self.assertIn("dependencies=[\n('migrations','0001_%s'),\n]" % migration_name_0001, content)
self.assertIn("operations=[\n]", content)
+
+
+class SquashMigrationsTest(MigrationTestBase):
+ """
+ Tests running the squashmigrations command.
+ """
+
+ path = "migrations/test_migrations/0001_squashed_0002_second.py"
+
+ def tearDown(self):
+ if os.path.exists(self.path):
+ os.remove(self.path)
+
+ @override_settings(MIGRATION_MODULES={"migrations": "migrations.test_migrations"})
+ def test_squashmigrations_squashes(self):
+ """
+ Tests that squashmigrations squashes migrations.
+ """
+ call_command("squashmigrations", "migrations", "0002", interactive=False, verbosity=0)
+ self.assertTrue(os.path.exists(self.path))
+
+ @override_settings(MIGRATION_MODULES={"migrations": "migrations.test_migrations"})
+ def test_squashmigrations_optimizes(self):
+ """
+ Tests that squashmigrations optimizes operations.
+ """
+ out = six.StringIO()
+ call_command("squashmigrations", "migrations", "0002", interactive=False, verbosity=1, stdout=out)
+ self.assertIn("Optimized from 7 operations to 5 operations.", out.getvalue())
+
+ @override_settings(MIGRATION_MODULES={"migrations": "migrations.test_migrations"})
+ def test_ticket_23799_squashmigrations_no_optimize(self):
+ """
+ Makes sure that squashmigrations --no-optimize really doesn't optimize operations.
+ """
+ out = six.StringIO()
+ call_command("squashmigrations", "migrations", "0002",
+ interactive=False, verbosity=1, no_optimize=True, stdout=out)
+ self.assertIn("Skipping optimization", out.getvalue())