Default .terraformignore rules don't work on Windows

[Jaecen]

Terraform Version

Terraform v0.12.13

Terraform Configuration Files

n/a

Debug Output

n/a

Crash Output

n/a

Expected Behavior

When no .terraformignore file is present, executing a plan or apply on a Remote Backend CLI-drive run will ignore any .git and .terraform folders, excluding .terraform/modules, while building the slug to upload.

Actual Behavior

On Windows, .terraform and .git folders are included in the uploaded slug.

Steps to Reproduce

On a Windows machine with latest Terraform installed:

1. Create a new Terraform Cloud workspace
2. Create a Terraform configuration with a remote backend pointing at that workspace
3. terraform init
4. Copy a large file (100+ MB) into the .terraform folder
5. terraform plan
6. Watch your upload statistics and note how long it takes to upload
7. Create a .terraformignore file with the following contents:

**\.git\**
**\.terraform\**
!**\.terraform\modules\**

1. terraform plan
2. Note how this upload is practically instant

Additional Context

I believe this is happening because the default .terraformignore uses forward slashes, but backslashes are required on Windows. If you create a .terraformignore file using forward slashes, you see the same behavior as if not using a .terraformignore at all. If you change it to backslashes, it works correctly.

References

n/a

[pselle]

@Jaecen Thanks for filing this report! This is definitely an oversight, and I appreciate you posting the current workaround (.terraformignore with the default rules) for any users looking for it. I'll get to work on fixing this.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

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