Previously valid escaped sequence no longer valid in v0.8.0

[jemmyw]

terraform -v
Terraform v0.8.0-dev (0522f4322f76e760c293c0c1141e4b3b9fbfbc9b)

This is the config:

data "null_data_source" "environment" {
  inputs {
    environment = <<ENV
    ${join(",\n", formatlist("{\"name\": \"%s\", \"value\": \"%s\"}", split(",",upper(join(",", keys(var.environment)))), values(var.environment)))}
ENV
  }
}

It works with v0.7.11. With v0.8.0 it gives the error:

Error loading Terraform: Error downloading modules: module web: Error loading .terraform/modules/c1dd1c6122392193110c2e3000873ee1/service.tf: Error reading config for null_data_source[environment]: parse error at 1:32: invalid backslash escape sequence

[apparentlymart]

Thanks for reporting this, @jemmyw. This is indeed a regression in the new version of HIL used in 0.8. I opened hashicorp/hil#35 for this, and I intend to work on fixing it now.

[mitchellh]

I believe this is a bug but there is some BC incompat in 0.8 around this documented in the changelog. More details here: hashicorp/hcl#150

[mitchellh]

Fixed by referenced PR, I'm also going to add a context test case in terraform just to make sure we always catch this use case in core in the future.

[ghost]

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