Apply --format when listing repository archives

src/borg/archiver.py

@@ -29,7 +29,7 @@ from .constants import *  # NOQA
 from .helpers import EXIT_SUCCESS, EXIT_WARNING, EXIT_ERROR
 from .helpers import Error, NoManifestError
 from .helpers import location_validator, archivename_validator, ChunkerParams, CompressionSpec
-from .helpers import ItemFormatter, format_time, format_file_size, format_archive
+from .helpers import ItemFormatter, ArchiveFormatter, format_time, format_file_size, format_archive
 from .helpers import safe_encode, remove_surrogates, bin_to_hex
 from .helpers import prune_within, prune_split
 from .helpers import to_localtime, timestamp
@@ -762,13 +762,19 @@ class Archiver:
                 for item in archive.iter_items(lambda item: matcher.match(item.path)):
                     write(safe_encode(formatter.format_item(item)))
         else:
+            if args.format:
+                format = args.format
+            elif args.short:
+                format = "{archive}{NL}"
+            else:
+                format = "{archive:<36} {time} [{id}]{NL}"
+            formatter = ArchiveFormatter(format)
+
             for archive_info in manifest.list_archive_infos(sort_by='ts'):
                 if args.prefix and not archive_info.name.startswith(args.prefix):
                     continue
-                if args.short:
-                    print(archive_info.name)
-                else:
-                    print(format_archive(archive_info))
+                write(safe_encode(formatter.format_item(archive_info)))
+
         return self.exit_code
 
     @with_repository(cache=True)

src/borg/helpers.py

@@ -1132,7 +1132,7 @@ def log_multi(*msgs, level=logging.INFO, logger=logger):
         logger.log(level, line)
 
 
-class ItemFormatter:
+class BaseFormatter:
     FIXED_KEYS = {
         # Formatting aids
         'LF': '\n',
@@ -1143,6 +1143,29 @@ class ItemFormatter:
         'NEWLINE': os.linesep,
         'NL': os.linesep,
     }
+
+    def get_item_data(self, item):
+        raise NotImplementedError
+
+    def format_item(self, item):
+        return self.format.format_map(self.get_item_data(item))
+
+
+class ArchiveFormatter(BaseFormatter):
+
+    def __init__(self, format):
+        self.format = partial_format(format, self.FIXED_KEYS)
+
+    def get_item_data(self, archive):
+        return {
+            'barchive': archive.name,
+            'archive': remove_surrogates(archive.name),
+            'id': bin_to_hex(archive.id),
+            'time': format_time(to_localtime(archive.ts)),
+        }
+
+
+class ItemFormatter(BaseFormatter):
     KEY_DESCRIPTIONS = {
         'bpath': 'verbatim POSIX path, can contain any character except NUL',
         'path': 'path interpreted as text (might be missing non-text characters, see bpath)',
@@ -1254,9 +1277,6 @@ class ItemFormatter:
             item_data[key] = self.call_keys[key](item)
         return item_data
 
-    def format_item(self, item):
-        return self.format.format_map(self.get_item_data(item))
-
     def calculate_num_chunks(self, item):
         return len(item.get('chunks', []))