Avoid imorting from silver-platter.

ognibuild/debian/build.py

@@ -35,16 +35,15 @@ from debmutate.changelog import get_maintainer, format_datetime
 
 from breezy import osutils
 from breezy.mutabletree import MutableTree
-from silver_platter.debian import (
-    BuildFailedError,
-    DEFAULT_BUILDER,
-)
+from breezy.plugins.debian.builder import BuildFailedError
 
 from buildlog_consultant.sbuild import (
     worker_failure_from_sbuild_log,
     SbuildFailure,
 )
 
+DEFAULT_BUILDER = "sbuild --no-clean-source"
+
 
 class MissingChangesFile(Exception):
     """Expected changes file was not written."""

ognibuild/debian/fix_build.py

@@ -61,12 +61,13 @@ from debmutate._rules import (
     dh_invoke_add_with,
     update_rules,
 )
-from silver_platter.debian import (
-    debcommit,
-    DEFAULT_BUILDER,
-)
 
-from .build import attempt_build, get_build_architecture
+from .build import (
+    attempt_build,
+    get_build_architecture,
+    DEFAULT_BUILDER,
+    )
+from breezy.plugins.debian.changelog import debcommit
 from buildlog_consultant import Problem
 from buildlog_consultant.common import (
     MissingConfigStatusInput,
@@ -110,7 +111,6 @@ from buildlog_consultant.sbuild import (
     SbuildFailure,
 )
 
-
 DEFAULT_MAX_ITERATIONS = 10