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Copier is a fantastic templating library written in python, but older versions have a dangerous bug if you are using it inside of existing directories.
!!UPDATE!! #
As of May 15, 2022, the stable release of copier now includes these changes, if you have not already make sure you update.
This is a PSA #
I Use copier several times per day and get fantastic benefit from this project, this post is not intended to crap all over copier in any way, but is rather a PSA for other users who do use copier like I do so that they know the dangers of using copier inside an existing directory.
The issue #
The fix #
https://github.com/copier-org/copier/pull/273
As of the time of writing this version is still in beta, if you still want to
use copier with existing directtories, I'd strongly encourage you to install
the --pre release.
pipx install copier --pip-args='--pre'
confirm #
copier --version # copier 6.0.0b0
My update commit #
https://github.com/WaylonWalker/devtainer/commit/a06e47462e2c6d26ad69fbdc2e7990a1a73ab4b7