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replace(str, substr, replace) returns a copy of str with every occurrence of substr replaced by replace.

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Signature

replace(str string, substr string, replace string) string

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Example

Convert a Go module path to a filesystem-safe artifact name by replacing slashes with hyphens: 
variable "module" {
  description = "Go module path"
  type        = string
  default     = "github.com/myorg/myapp"
}

variable "version" {
  type = string
}

computed "artifact_name" {
  description = "Artifact filename safe for use on the filesystem"
  expression  = "${replace(var.module, "/", "-")}-${var.version}.tar.gz"
}

task "package" {
  description = "Build and archive the release binary"
  commands = [
    "go build -o bin/app ./cmd/app",
    "tar -czf ${computed.artifact_name} bin/app",
  ]
}
github.com/myorg/myapp becomes github.com-myorg-myapp-1.0.0.tar.gz.

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Notes

  • replace replaces all occurrences. There is no option to replace only the first match.
  • For pattern-based replacement, use regexreplace.