Issue with too many files in (ignored) .venv #2244
Description
Describe the problem
I'm having an issue with a project that has a large virtual env, and the .venv folder lives within the project folder. .venv is ignored in both copier.yaml & .gitignore. I also tried to not ignore the .venv folder in the copier.yaml file and only rely on .gitignore, but that also didn't help.
The issue is that the generated git apply command becomes too long with all the files in the .venv directory being excluded separately (traceback below).
I've created an example project (needs uv installed) to make it easy to reproduce the issue (although not sure if other OSs than my Fedora might have other limits with how long arguments to a command can be):
https://github.com/makkus/copier_issue
Note: I've installed copier using pixi, but couldn't select that below. Don't think it matters though.
Template
https://github.com/makkus/copier_issue
To Reproduce
copier copy --vcs-ref=HEAD gh:makkus/copier_issue test_template
cd test_template && git init && git add .* * && git commit -m 'chore: initial commit'
copier update --vcs-ref=HEAD # works fine
uv run python main.py
copier update --vcs-ref=HEAD # raises error
Logs
Traceback (most recent call last):
File "/home/markus/.pixi/envs/copier/bin/copier", line 10, in <module>
sys.exit(CopierApp.run())
~~~~~~~~~~~~~^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/cli/application.py", line 640, in run
inst, retcode = subapp.run(argv, exit=False)
~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/cli/application.py", line 635, in run
retcode = inst.main(*tailargs)
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/copier/_cli.py", line 428, in main
return _handle_exceptions(inner)
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/copier/_cli.py", line 71, in _handle_exceptions
method()
~~~~~~^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/copier/_cli.py", line 418, in inner
with self._worker(
~~~~~~~~~~~~^
dst_path=destination_path,
^^^^^^^^^^^^^^^^^^^^^^^^^^
...<4 lines>...
overwrite=True,
^^^^^^^^^^^^^^^
) as worker:
^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/copier/_main.py", line 271, in __exit__
raise value
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/copier/_cli.py", line 426, in inner
worker.run_update()
~~~~~~~~~~~~~~~~~^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/copier/_main.py", line 95, in _wrapper
return func(*args, **kwargs)
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/copier/_main.py", line 1124, in run_update
self._apply_update()
~~~~~~~~~~~~~~~~~~^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/copier/_main.py", line 1293, in _apply_update
(apply_cmd << diff)(retcode=None)
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/commands/base.py", line 115, in __call__
return self.run(args, **kwargs)[1]
~~~~~~~~^^^^^^^^^^^^^^^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/commands/base.py", line 253, in run
with self.bgrun(args, **kwargs) as p:
~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/contextlib.py", line 141, in __enter__
return next(self.gen)
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/commands/base.py", line 209, in bgrun
p = self.popen(args, **kwargs)
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/commands/base.py", line 563, in popen
return self.cmd.popen(args, **kwargs)
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/commands/base.py", line 334, in popen
return self.cmd.popen(self.args + list(args), **kwargs)
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/commands/base.py", line 361, in popen
return self.cmd.popen(
~~~~~~~~~~~~~~^
args,
^^^^^
...<2 lines>...
**kwargs,
^^^^^^^^^
)
^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/machines/local.py", line 116, in popen
return self.machine._popen(
~~~~~~~~~~~~~~~~~~~^
self.executable,
^^^^^^^^^^^^^^^^
...<3 lines>...
**kwargs,
^^^^^^^^^
)
^
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/machines/local.py", line 298, in _popen
proc = PlumbumLocalPopen(
argv,
...<6 lines>...
**kwargs,
) # bufsize = 4096
File "/home/markus/.pixi/envs/copier/lib/python3.13/site-packages/plumbum/machines/local.py", line 30, in __init__
self._proc = Popen(*args, **kwargs) # pylint: disable=consider-using-with
~~~~~^^^^^^^^^^^^^^^^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/subprocess.py", line 1039, in __init__
self._execute_child(args, executable, preexec_fn, close_fds,
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
pass_fds, cwd, env,
^^^^^^^^^^^^^^^^^^^
...<5 lines>...
gid, gids, uid, umask,
^^^^^^^^^^^^^^^^^^^^^^
start_new_session, process_group)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/markus/.pixi/envs/copier/lib/python3.13/subprocess.py", line 1972, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
OSError: [Errno 7] Argument list too long: '/home/markus/.pixi/bin/git'Expected behavior
There would be no error, even with a .venv (or other ignored/excluded folder for that matter) that has tons of files in it.
Screenshots/screencasts/logs
No response
Operating system
Linux
Operating system distribution and version
Fedora 42
Copier version
9.8.0
Python version
CPython 3.13.5
Installation method
uvx+pypi
Additional context
No response