gomi: embed version information (#403076)

    owner = "b4b4r07";

    repo = "gomi";

    tag = "v${version}";

    hash = "sha256-FZCvUG6lQH8CFivV/hbIgGQx4FCk1UtreiWXTQVi4+4=";

    hash = "sha256-0C+us4GO8Jd51ATaaf0aRU3NnhmDvu0I3qDDXBoaiXU=";

    # populate values that require us to use git. By doing this in postFetch we

    # can delete .git afterwards and maintain better reproducibility of the src.

    leaveDotGit = true;

    postFetch = ''

      cd $out

      git show --format='%h' HEAD --quiet > ldflags_revision

      date --utc --date="@$(git show --format='%ct' HEAD --quiet)" +'%Y-%m-%dT%H:%M:%SZ' > ldflags_buildDate

      find . -type d -name .git -print0 | xargs -0 rm -rf

    '';

  };

  vendorHash = "sha256-8aw81DKBmgNsQzgtHCsUkok5e5+LeAC8BUijwKVT/0s=";

  subPackages = [ "." ];

  # Add version information fetched from the repository to ldflags.

  # https://github.com/babarot/gomi/blob/v1.6.0/.goreleaser.yaml#L20-L22

  ldflags = [

    "-X main.version=v${version}"

  ];

  preBuild = ''

    ldflags+=" -X main.revision=$(cat ldflags_revision)"

    ldflags+=" -X main.buildDate=$(cat ldflags_buildDate)"

  '';

  meta = {

    description = "Replacement for UNIX rm command";

    homepage = "https://github.com/b4b4r07/gomi";