Python: Extend and/or override EXCLUDED_FILES

[milesgranger]

Describe your idea/feature/enhancement

It appears the EXCLUDED_FILES is hardcoded.

It would be delightful if this could be extended/modified. I have many files and directories which are ignored by my own .gitignore but these continue to be included in the build directory by SAM. (build/, .eggs/, .ipython/, .ipynb_checkpoints/, dist/, package.json, package-lock.json, etc, etc)

Then there are files that shouldn't be ignored by git but should be ignored during the build such as a tests directory.

Furthermore, I don't actually want to ignore .git/ b/c I use setuptools-scm to control versioning with git, and during the build that fails because it has no git context.

Proposal

Add configuration ability to override or extend with existing .gitignore or with own list, ie a .samignore file

[carpnick]

This needs to be exposed in AWS SAM to support other tools like - the AWS cfn tool set. - IE - https://github.com/aws-cloudformation/cloudformation-cli-python-plugin

Directly related to this issue - aws-cloudformation/cloudformation-cli-python-plugin#247

[HWiese1980]

Has this feature been implemented? I'm running into the same problem with a python project that contains big virtual environments that I'd like to exclude.

[festusyuma]

Has this feature been implemented? I'm running into the same problem with a python project that contains big virtual environments that I'd like to exclude.

Hi, Have you had any luck with this issue, I have some symlinks in my project node_modules/.bin and I am unable to run sam build --use-container cos it keeps trying to copy the symlinks and end up with errors like this

FileNotFoundError: [Errno 2] No such file or directory: '***/backend/node_modules/.bin/ts-node'

[mildaniel]

Created a separate issue to consolidate the discussion for include/exclude functionality #516.