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.. _Command Chaining:
================
Command Chaining
================
Cyclopts does not natively support command chaining.
This is because Cyclopts opted for more flexible and robust CLI parsing, rather than a compromised, inconsistent parsing experience.
With that said, Cyclopts gives you the tools to create your own command chaining experience.
In this example, we will use a special delimiter token (e.g. ``"AND"``) to separate commands.
.. code-block:: python
import itertools
from cyclopts import App, Parameter
from typing import Annotated
app = App()
@app.command
def foo(val: int):
print(f"FOO {val=}")
@app.command
def bar(flag: bool):
print(f"BAR {flag=}")
@app.meta.default
def main(*tokens: Annotated[str, Parameter(show=False, allow_leading_hyphen=True)]):
# tokens is ``["foo", "123", "AND", "foo", "456", "AND", "bar", "--flag"]``
delimiter = "AND"
groups = [list(group) for key, group in itertools.groupby(tokens, lambda x: x == delimiter) if not key] or [[]]
# groups is ``[['foo', '123'], ['foo', '456'], ['bar', '--flag']]``
for group in groups:
# Execute each group
app(group)
if __name__ == "__main__":
app.meta(["foo", "123", "AND", "foo", "456", "AND", "bar", "--flag"])
# FOO val=123
# FOO val=456
# BAR flag=True
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