implement --remote-path to allow non-default-path borg locations

borg/archiver.py

@@ -512,6 +512,8 @@ Type "Yes I am sure" if you understand this and want to continue.\n""")
         common_parser.add_argument('--no-files-cache', dest='cache_files', action='store_false')
         common_parser.add_argument('--umask', dest='umask', type=lambda s: int(s, 8), default=0o077, metavar='M',
                                    help='set umask to M (local and remote, default: 0o077)')
+        common_parser.add_argument('--remote-path', dest='remote_path', default='borg', metavar='PATH',
+                                   help='set remote path to executable (default: "borg")')
 
         # We can't use argparse for "serve" since we don't want it to show up in "Available commands"
         if args:
@@ -823,6 +825,7 @@ Type "Yes I am sure" if you understand this and want to continue.\n""")
         args = parser.parse_args(args or ['-h'])
         self.verbose = args.verbose
         set_umask(args.umask)
+        RemoteRepository.remote_path = args.remote_path
         update_excludes(args)
         return args.func(args)
 

borg/remote.py

@@ -108,9 +108,9 @@ class RepositoryServer:
 
 class RemoteRepository:
     extra_test_args = []
+    remote_path = None
 
     class RPCError(Exception):
-
         def __init__(self, name):
             self.name = name
 
@@ -136,7 +136,7 @@ class RemoteRepository:
                 args.append('%s@%s' % (location.user, location.host))
             else:
                 args.append('%s' % location.host)
-            args += ['borg', 'serve'] + umask
+            args += [self.remote_path, 'serve'] + umask
         self.p = Popen(args, bufsize=0, stdin=PIPE, stdout=PIPE)
         self.stdin_fd = self.p.stdin.fileno()
         self.stdout_fd = self.p.stdout.fileno()