Build build my own bottles for arm64 linux

[matthewruzzi]

How can I build bottles for arm64 linux formulae on my own tap?

[SMillerDev]

Get a CI machine to build them. The system would be the same as for any other platform.

[iMichka]

It's untested and not really supported, so you might hit some issues though.

[matthewruzzi]

@SMillerDev What command would I run if I wanter to build them locally? I tried using brew test-bot mpdecimal and it gave me the following:

class Mpdecimal < Formula
  desc "Library for decimal floating point arithmetic"
  homepage "https://www.bytereef.org/mpdecimal/"
  url "https://www.bytereef.org/software/mpdecimal/releases/mpdecimal-2.5.1.tar.gz"
  sha256 "9f9cd4c041f99b5c49ffb7b59d9f12d95b683d88585608aa56a6307667b2b21f"
  license "BSD-2-Clause"

  livecheck do
    url "https://www.bytereef.org/mpdecimal/download.html"
    regex(/href=.*?mpdecimal[._-]v?(\d+(?:\.\d+)+)\.t/i)
  end

  bottle do
    root_url "https://ghcr.io/v2/mattruzzi/core"
    rebuild 1
    sha256 cellar: :any_skip_relocation, x86_64_aarch64_linux: "3165fcd6c3d552f06cf29dc3e3a2c0b0d4c7fbbfaeff70a24e884fac1b6ef9b6"
  end

  def install
    system "./configure", "--prefix=#{prefix}"
    system "make"
    system "make", "install"
  end


38 more lines ...

When I uninstalled and reinstalled the program it didn't use the bottle and instead compiled from source.
Is x86_64_aarch64_linux correct?

[matthewruzzi]

@SMillerDev I ran brew install --force-bottle gpatch and it said Error: --force-bottle passed but gpatch has no bottle! What should I do?

[SMillerDev]

Like iMichka pointed out, these are uncharted waters. Maybe you can figure out what it's trying to use with --debug?

[matthewruzzi]

parallels@ubuntu-linux-20-04-desktop:~/Documents/archive-scripts$ brew install --force-bottle gpatch --debug
/home/parallels/homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /home/parallels/homebrew/Library/Taps/homebrew/homebrew-core/Formula/gpatch.rb
Warning: Your CPU architecture (arm64) is not supported. We only support
x86_64 CPU architectures. You will be unable to use binary packages (bottles).
You will encounter build failures with some formulae.
Please create pull requests instead of asking for help on Homebrew's GitHub,
Twitter or any other official channels. You are responsible for resolving
any issues you experience while you are running this
unsupported configuration.

/home/parallels/homebrew/Library/Homebrew/shims/shared/git --version
Error: --force-bottle passed but gpatch has no bottle!

gpatch.rb

class Gpatch < Formula
  desc "Apply a diff file to an original"
  homepage "https://savannah.gnu.org/projects/patch/"
  url "https://ftp.gnu.org/gnu/patch/patch-2.7.6.tar.xz"
  mirror "https://ftpmirror.gnu.org/patch/patch-2.7.6.tar.xz"
  sha256 "ac610bda97abe0d9f6b7c963255a11dcb196c25e337c61f94e4778d632f1d8fd"
  license "GPL-3.0"

  bottle do
    rebuild 1
    sha256 cellar: :any_skip_relocation, x86_64_aarch64_linux: "4fc4ef9147cca61ee817912d3511bb2acf436a107a4f5d0964837431e2219146"
  end

  def install
    system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
    system "make", "install"
  end

  test do
    testfile = testpath/"test"
    testfile.write "homebrew\n"
    patch = <<~EOS
      1c1
      < homebrew
      ---
      > hello
    EOS
    pipe_output("#{bin}/patch #{testfile}", patch)
    assert_equal "hello", testfile.read.chomp
  end
end