shtab

Author: tony

poetry.lock

@@ -62,6 +62,7 @@ python = "^3.9"
 click = "~8"
 libvcs = "~0.17.0"
 colorama = ">=0.3.9"
+shtab = "^1.5.5"
 
 [tool.poetry.dev-dependencies]
 ### Docs ###

pyproject.toml

@@ -7,6 +7,8 @@
 import argparse
 import logging
 
+import shtab
+
 from libvcs.__about__ import __version__ as libvcs_version
 
 from ..__about__ import __version__
@@ -18,6 +20,7 @@
 
 def create_parser():
     parser = argparse.ArgumentParser(prog="vcspull")
+    shtab.add_argument_to(parser, ["-s", "--print-completion"])
     parser.add_argument(
         "--version",
         "-V",
@@ -31,6 +34,13 @@ def create_parser():
         help="Log level (DEBUG, INFO, WARNING, ERROR, CRITICAL)",
     )
     subparsers = parser.add_subparsers(dest="subparser_name")
+    # subparsers.required = True
+    completion_parser = subparsers.add_parser("completion", help="print tab completion")
+    shtab.add_argument_to(
+        completion_parser,
+        "shell",
+        parent=parser,
+    )  # magic!
     sync_parser = subparsers.add_parser("sync")
     create_sync_subparser(sync_parser)