1 files changed, 132 insertions, 0 deletions
diff --git a/src/pybind/ceph_mgr_repl.py b/src/pybind/ceph_mgr_repl.py
new file mode 100755
index 000000000..159abdc99
--- /dev/null
+++ b/src/pybind/ceph_mgr_repl.py
@@ -0,0 +1,132 @@
+#!/usr/bin/python3
+# -*- mode:python -*-
+# vim: ts=4 sw=4 smarttab expandtab
+
+__all__ = ['ConsoleOptions', 'MgrModuleInterpreter']
+
+import readline
+import sys
+from code import InteractiveConsole
+from collections import namedtuple
+from pathlib import Path
+
+from ceph_argparse import json_command
+
+
+ConsoleOptions = namedtuple('ConsoleOptions',
+                            ['name', 'conffile', 'prefix', 'timeout'])
+
+
+class MgrModuleInteractiveConsole(InteractiveConsole):
+    def __init__(self, rados, opt, filename="<console>"):
+        super().__init__(filename)
+        self.cmd_prefix = opt.prefix
+        self.timeout = opt.timeout
+        self.cluster = rados.Rados(name=opt.name,
+                                   conffile=opt.conffile)
+        self.cluster.connect(timeout=opt.timeout)
+
+    def _do_runsource(self, source):
+        ret, buf, s = json_command(self.cluster,
+                                   prefix=self.cmd_prefix,
+                                   target=('mon-mgr',),
+                                   inbuf=source.encode(),
+                                   timeout=self.timeout)
+        if ret == 0:
+            # TODO: better way to encode the outputs
+            sys.stdout.write(buf.decode())
+            sys.stderr.write(s)
+        else:
+            # needs more
+            self.write("the input is not complete")
+
+    def runsource(self, source, filename='<input>', symbol='single'):
+        try:
+            # just validate the syntax
+            code = self.compile(source, filename, symbol)
+        except (OverflowError, SyntaxError, ValueError):
+            # Case 1
+            self.showsyntaxerror(filename)
+            return False
+
+        if code is None:
+            # Case 2
+            return True
+
+        # Case 3
+        self._do_runsource(source)
+        return False
+
+    def runcode(self, code):
+        # code object cannot be pickled
+        raise NotImplementedError()
+
+
+def show_env():
+    prog = Path(__file__).resolve()
+    ceph_dir = prog.parents[2]
+    python_path = ':'.join([f'{ceph_dir}/src/pybind',
+                            f'{ceph_dir}/build/lib/cython_modules/lib.3',
+                            f'{ceph_dir}/src/python-common',
+                            '$PYTHONPATH'])
+    ld_library_path = ':'.join([f'{ceph_dir}/build/lib',
+                                '$LD_LIBRARY_PATH'])
+    return f'''
+    $ export PYTHONPATH={python_path}
+    $ export LD_LIBRARY_PATH={ld_library_path}'''.strip('\n')
+
+
+def main():
+    import argparse
+    try:
+        import rados
+    except ImportError:
+        print(f'''Unable to import rados python binding.
+Please set the environment variables first:
+{show_env()}''',
+              file=sys.stderr)
+        exit(1)
+
+    prog = Path(__file__).name
+    epilog = f'''Usage:
+    {prog} -c "print(mgr.release_name)"'''
+    parser = argparse.ArgumentParser(epilog=epilog)
+    parser.add_argument('--name', action='store',
+                        default='client.admin',
+                        help='user name for connecting to cluster')
+    parser.add_argument('--conffile', action='store',
+                        default=rados.Rados.DEFAULT_CONF_FILES,
+                        help='path to ceph.conf')
+    parser.add_argument('--prefix', action='store',
+                        default='mgr self-test eval',
+                        help='command prefix for eval the source')
+    parser.add_argument('--timeout', action='store',
+                        type=int,
+                        default=10,
+                        help='timeout in seconds')
+    parser.add_argument('--show-env', action='store_true',
+                        help='show instructions to set environment variables')
+    group = parser.add_mutually_exclusive_group()
+    group.add_argument('-c', action='store',
+                       help='optional statement',
+                       dest='command')
+    group.add_argument('script', nargs='?', type=argparse.FileType('r'))
+    args = parser.parse_args()
+    options = ConsoleOptions(name=args.name,
+                             conffile=args.conffile,
+                             prefix=args.prefix,
+                             timeout=args.timeout)
+    console = MgrModuleInteractiveConsole(rados, options)
+    if args.show_env:
+        print(show_env())
+    elif args.command:
+        console.runsource(args.command)
+    elif args.script:
+        console.runsource(args.script.read())
+    else:
+        sys.ps1 = f'[{args.prefix}] >>> '
+        console.interact()
+
+
+if __name__ == '__main__':
+    main()