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Documentation Index

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arch() returns the CPU architecture of the machine running Errand. Common values are "amd64" and "arm64".

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Signature

arch() string

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Example

Build and name the release binary for the current platform, automatically picking up the right architecture: 
variable "version" {
  type = string
}

computed "current_os" {
  expression = os()
}

computed "current_arch" {
  expression = arch()
}

computed "binary_name" {
  description = "Platform-specific binary filename"
  expression  = "app-${var.version}-${computed.current_os}-${computed.current_arch}"
}

task "build" {
  description = "Build the release binary for the current platform"
  commands = [
    "go build -o dist/${computed.binary_name} ./cmd/app",
    "echo 'Built: dist/${computed.binary_name}'",
  ]
}

task "checksum" {
  description = "Generate a checksum file for the binary"
  depends_on  = [task.build]
  commands = [
    "sha256sum dist/${computed.binary_name} > dist/${computed.binary_name}.sha256",
  ]
}
On an Apple Silicon Mac, computed.binary_name becomes app-1.4.2-darwin-arm64.

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Notes

  • Common values: amd64 (x86-64), arm64 (64-bit ARM), arm, 386.
  • To detect the operating system, use os.