source_path only accepts a single string detailing a directory or filename. Docs detail that a list of strings or a list of maps are supported, but anything other than a string causes a failure.

Expected Behavior

Ability to specify a list of maps to describe what to include in the Lambda package.

Actual Behavior

Failure during external.archive_package step in package.tf; similar failure seen with github-tagged version.

Steps to repro

Run terraform apply with the following config

module "package" {
  source            = "git::https://github.com/terraform-aws-modules/terraform-aws-lambda.git?ref=v1.3.0"

  create_function   = false
  create_role       = false
  publish           = false
  runtime           = "python3.8"
  source_path        = [{
    path             = "${path.module}/../src",
    patterns = [
      "!.*/.*\\.txt", # Skip all txt files recursively
    ]
  }]
  # Store Package in S3
  store_on_s3       = true
  s3_bucket         = data.aws_s3_bucket.lambda_store.id
  build_in_docker   = true
}

Where the src directory contains the contents of this repo's examples/fixtures/python3.8-app1 directory.

Failure observed:

Error: Incorrect attribute value type
  on .terraform/modules/package/terraform-aws-lambda-1.3.0/package.tf line 9, in data "external" "archive_prepare":
...
Inappropriate value for attribute "query": element "source_path": string required.

Changing source_path = jsonencode(var.source_path) fixed that error, but examination of lambda.py:248 leads me to believe the functionality simply isn't present as the external process is only ever expecting a source_path to be a string detailing a pathname.

I'd be happy to look into extending lambda.py to accept additional options, but if it's something already being worked on, I'd just as soon not spend my time on it.