distinct

distinct(list list) list

variable "base_packages" {
  type    = list(string)
  default = ["./cmd/api", "./cmd/worker"]
}

variable "extra_packages" {
  type    = list(string)
  default = ["./cmd/worker", "./cmd/scheduler"]
}

computed "packages" {
  description = "Deduplicated list of packages to build"
  expression  = distinct(concat(var.base_packages, var.extra_packages))
}

task "build" {
  description = "Build all unique packages"
  commands    = ["go build ${join(" ", computed.packages)}"]
}