cleanup: get rid of ignore_inode, replace with cache_mode

ignore_inode == ('i' not in cache_mode)  # i)node

src/borg/archive.py

@@ -980,13 +980,13 @@ Utilization of max. archive size: {csize_max:.0%}
         self.add_item(item)
         return 'i'  # stdin
 
-    def process_file(self, path, st, cache, ignore_inode=False):
+    def process_file(self, path, st, cache):
         with self.create_helper(path, st, None) as (item, status, hardlinked, hardlink_master):  # no status yet
             is_special_file = is_special(st.st_mode)
             if not hardlinked or hardlink_master:
                 if not is_special_file:
                     path_hash = self.key.id_hash(safe_encode(os.path.join(self.cwd, path)))
-                    known, ids = cache.file_known_and_unchanged(path_hash, st, ignore_inode)
+                    known, ids = cache.file_known_and_unchanged(path_hash, st)
                 else:
                     # in --read-special mode, we may be called for special files.
                     # there should be no information in the cache about special files processed in

src/borg/archiver.py

@@ -144,6 +144,7 @@ def with_repository(fake=False, invert_fake=False, create=False, lock=True,
                 if cache:
                     with Cache(repository, kwargs['key'], kwargs['manifest'],
                                do_files=getattr(args, 'cache_files', False),
+                               ignore_inode=getattr(args, 'ignore_inode', False),
                                progress=getattr(args, 'progress', False), lock_wait=self.lock_wait,
                                cache_mode=getattr(args, 'files_cache_mode', DEFAULT_FILES_CACHE_MODE)) as cache_:
                         return method(self, args, repository=repository, cache=cache_, **kwargs)
@@ -528,7 +529,6 @@ class Archiver:
 
         self.output_filter = args.output_filter
         self.output_list = args.output_list
-        self.ignore_inode = args.ignore_inode
         self.exclude_nodump = args.exclude_nodump
         dry_run = args.dry_run
         t0 = datetime.utcnow()
@@ -536,7 +536,7 @@ class Archiver:
         if not dry_run:
             with Cache(repository, key, manifest, do_files=args.cache_files, progress=args.progress,
                        lock_wait=self.lock_wait, permit_adhoc_cache=args.no_cache_sync,
-                       cache_mode=args.files_cache_mode) as cache:
+                       cache_mode=args.files_cache_mode, ignore_inode=args.ignore_inode) as cache:
                 archive = Archive(repository, key, manifest, args.location.archive, cache=cache,
                                   create=True, checkpoint_interval=args.checkpoint_interval,
                                   numeric_owner=args.numeric_owner, noatime=args.noatime, noctime=args.noctime, nobirthtime=args.nobirthtime,
@@ -594,7 +594,7 @@ class Archiver:
                         return
             if stat.S_ISREG(st.st_mode):
                 if not dry_run:
-                    status = archive.process_file(path, st, cache, self.ignore_inode)
+                    status = archive.process_file(path, st, cache)
             elif stat.S_ISDIR(st.st_mode):
                 if recurse:
                     tag_paths = dir_is_tagged(path, exclude_caches, exclude_if_present)

src/borg/cache.py

@@ -359,10 +359,13 @@ class Cache:
             shutil.rmtree(path)
 
     def __new__(cls, repository, key, manifest, path=None, sync=True, do_files=False, warn_if_unencrypted=True,
-                progress=False, lock_wait=None, permit_adhoc_cache=False, cache_mode=DEFAULT_FILES_CACHE_MODE):
+                progress=False, lock_wait=None, permit_adhoc_cache=False, cache_mode=DEFAULT_FILES_CACHE_MODE,
+                ignore_inode=False):
 
         if not do_files and 'd' not in cache_mode:
             cache_mode = 'd'
+        elif ignore_inode and 'i' in cache_mode:
+            cache_mode = ''.join(set(cache_mode) - set('i'))
 
         def local():
             return LocalCache(repository=repository, key=key, manifest=manifest, path=path, sync=sync,
@@ -924,14 +927,13 @@ class LocalCache(CacheStatsMixin):
         else:
             stats.update(-size, -csize, False)
 
-    def file_known_and_unchanged(self, path_hash, st, ignore_inode=False):
+    def file_known_and_unchanged(self, path_hash, st):
         """
         Check if we know the file that has this path_hash (know == it is in our files cache) and
         whether it is unchanged (the size/inode number/cmtime is same for stuff we check in this cache_mode).
 
         :param path_hash: hash(file_path), to save some memory in the files cache
         :param st: the file's stat() result
-        :param ignore_inode: whether the inode number shall be ignored
         :return: known, ids (known is True if we have infos about this file in the cache,
                              ids is the list of chunk ids IF the file has not changed, otherwise None).
         """
@@ -950,7 +952,7 @@ class LocalCache(CacheStatsMixin):
         entry = FileCacheEntry(*msgpack.unpackb(entry))
         if 's' in cache_mode and entry.size != st.st_size:
             return True, None
-        if 'i' in cache_mode and not ignore_inode and entry.inode != st.st_ino:
+        if 'i' in cache_mode and entry.inode != st.st_ino:
             return True, None
         if 'c' in cache_mode and bigint_to_int(entry.cmtime) != st.st_ctime_ns:
             return True, None
@@ -1019,7 +1021,7 @@ Chunk index:    {0.total_unique_chunks:20d}             unknown"""
     files = None
     cache_mode = 'd'
 
-    def file_known_and_unchanged(self, path_hash, st, ignore_inode=False):
+    def file_known_and_unchanged(self, path_hash, st):
         return False, None
 
     def memorize_file(self, path_hash, st, ids):