Mark Glob As Read Root Scan

mark_glob_as_read constrains its walk to a boundary

mark_glob_as_read now confines glob expansion to a boundary directory. By default the boundary is the enclosing Git repository root; outside a Git repository it is unset. A pattern whose walk would begin outside the boundary returns an error instead of expanding.

This bounds patterns that resolve higher than intended. For example, "${local.dir}/{*.yaml}" becomes /{*.yaml} when local.dir is empty, which previously walked the entire filesystem. A ? : conditional does not prevent this, because HCL evaluates both branches of a conditional before selecting one. Wrapping the call in try lets the error fall back to a default:

locals {
  files = sort(try(mark_glob_as_read("${local.dir}/{*.yaml,*.yml,*.json}"), []))
}

Pass a leading --terragrunt-boundary argument to set the boundary explicitly, for example to scope the walk to a subdirectory or to widen it to the filesystem root:

locals {
  scoped = mark_glob_as_read("--terragrunt-boundary=/etc/terragrunt", "/etc/terragrunt/{*.yaml}")
  all    = mark_glob_as_read("--terragrunt-boundary=/", "/{*.yaml}")
}