Rewrite handling of logging old libraries

Signed-off-by: Niels Thykier <niels@thykier.net>

britney.py

@@ -201,7 +201,7 @@ from britney2.migrationitem import MigrationItem
 from britney2.policies import PolicyVerdict
 from britney2.policies.policy import AgePolicy, RCBugPolicy, PiupartsPolicy, BuildDependsPolicy
 from britney2.policies.autopkgtest import AutopkgtestPolicy
-from britney2.utils import (old_libraries_format, undo_changes,
+from britney2.utils import (log_and_format_old_libraries, undo_changes,
                             compute_reverse_tree, possibly_compressed,
                             read_nuninst, write_nuninst, write_heidi,
                             format_and_log_uninst, newly_uninst, make_migrationitem,
@@ -2532,16 +2532,16 @@ class Britney(object):
         if self.options.smooth_updates:
             self.logger.info("> Removing old packages left in testing from smooth updates")
             if removals:
-                self.output_write("Removing packages left in testing for smooth updates (%d):\n%s" % \
-                    (len(removals), old_libraries_format(removals)))
+                self.output_logger.info("Removing packages left in testing for smooth updates (%d):", len(removals))
+                log_and_format_old_libraries(self.output_logger, removals)
                 self.do_all(actions=removals)
                 removals = old_libraries(self.sources, self.binaries, self.options.outofsync_arches)
         else:
             self.logger.info("> Not removing old packages left in testing from smooth updates"
                              " (smooth-updates disabled)")
 
-        self.output_write("List of old libraries in testing (%d):\n%s" % \
-             (len(removals), old_libraries_format(removals)))
+        self.output_logger.info("List of old libraries in testing (%d):", len(removals))
+        log_and_format_old_libraries(self.output_logger, removals)
 
         self.assert_nuninst_is_correct()
 

britney2/utils.py

@@ -164,8 +164,8 @@ def undo_changes(lundo, inst_tester, sources, binaries, all_binary_packages):
             binaries['testing'][arch][1][provided_pkg] = undo['virtual'][p]
 
 
-def old_libraries_format(libs):
-    """Format old libraries in a smart table"""
+def log_and_format_old_libraries(logger, libs):
+    """Format and log old libraries in a table (no header)"""
     libraries = {}
     for i in libs:
         pkg = i.package
@@ -173,7 +173,9 @@ def old_libraries_format(libs):
             libraries[pkg].append(i.architecture)
         else:
             libraries[pkg] = [i.architecture]
-    return "\n".join("  " + k + ": " + " ".join(libraries[k]) for k in libraries) + "\n"
+
+    for lib in sorted(libraries):
+        logger.info(" %s: %s", lib, " ".join(libraries[lib]))
 
 
 def compute_reverse_tree(inst_tester, affected):