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BUILDING.md

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Building from Source

If you'd like to build OpenTF from source, you can do so using the Go build toolchain and the options specified in this document.

Prerequisites

  1. Ensure you've installed the Go language version specified in .go-version.
  2. Clone this repository to a location of your choice.

OpenTF Build Options

OpenTF accepts certain options passed using ldflags at build time which control the behavior of the resulting binary.

Dev Version Reporting

OpenTF will include a -dev flag when reporting its own version (ex: 1.5.0-dev) unless version.dev is set to no:

go build -ldflags "-w -s -X 'github.com/placeholderplaceholderplaceholder/opentf/version.dev=no'" -o bin/ .

Experimental Features

Experimental features of OpenTF will be disabled unless main.experimentsAllowed is set to yes:

go build -ldflags "-w -s -X 'main.experimentsAllowed=yes'" -o bin/ .

Go Options

For the most part, the OpenTF release process relies on the Go toolchain defaults for the target operating system and processor architecture.

CGO_ENABLED

One exception is the CGO_ENABLED option, which is set explicitly when building OpenTF binaries. For most platforms, we build with CGO_ENABLED=0 in order to produce a statically linked binary. For MacOS/Darwin operating systems, we build with CGO_ENABLED=1 to avoid a platform-specific issue with DNS resolution.