Installation of fonts from .exe (MS TTF fonts) fails

[breml]

General troubleshooting steps

• I have retried my command with --force and the issue is still present.
• I have checked the instructions for reporting bugs (or making requests) before opening the issue.
  • None of the templates was appropriate for my issue, or I’m not sure.
• I ran brew update-reset && brew update and retried my command.
• I ran brew doctor, fixed as many issues as possible and retried my command.
• I understand that if I ignore these instructions, my issue may be closed without review.

Description of issue

When I try to install fonts, which are contained in an .exe file, like the MS TTF fonts, for example Arial, this fails with the following error:

/tmp/font-arial-20250111-147200-nhi2ku
Error: An exception occurred within a child process:
  TypeError: no implicit conversion of nil into String

After some debugging, I found, that the arial32.exe file is not extracted and those the .TTF files are not present in the temporary folder. With the following additions to the formula, the installation is successful for me:

  class FontArial < Formula
    desc "Arial font"
    homepage "https://sourceforge.net/projects/corefonts/files/the%20fonts/final/"
    head "https://downloads.sourceforge.net/corefonts/arial32.exe"
+   depends_on "cabextract" => :build

    def install
+     system "cabextract", "arial32.exe"
      (share/"fonts").install Dir.glob("./**/Arial.TTF")[0]
      (share/"fonts").install Dir.glob("./**/Arialbd.TTF")[0]
      (share/"fonts").install Dir.glob("./**/Arialbi.TTF")[0]
      (share/"fonts").install Dir.glob("./**/Ariali.TTF")[0]
    end

    test do
      assert_path_exists share/"fonts"
    end
  end

Output of your command with --verbose --debug

$ brew install --verbose --debug --HEAD --force font-arial
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/brew.rb (Formulary::FromNameLoader): loading font-arial
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/brew.rb (Formulary::FromNameLoader): loading font-arial
==> Fetching homebrew/linux-fonts/font-arial
==> Downloading https://downloads.sourceforge.net/corefonts/arial32.exe
/usr/bin/env /var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/shims/shared/curl --disable --cookie /dev/null --globoff --show-error --user-agent Linuxbrew/4.4.15\ \(Linux\;\ x86_64\ Bluefin-dx\ 41\ \(FROM\ Fedora\ Silverblue\)\)\ curl/8.9.1 --header Accept-Language:\ en --retry 3 -V
/usr/bin/env /var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/shims/shared/curl --disable --cookie /dev/null --globoff --show-error --user-agent Linuxbrew/4.4.15\ \(Linux\;\ x86_64\ Bluefin-dx\ 41\ \(FROM\ Fedora\ Silverblue\)\)\ curl/8.9.1 --header Accept-Language:\ en --retry 3 --fail --location --silent --head https://downloads.sourceforge.net/corefonts/arial32.exe
Already downloaded: /var/home/lubr/.cache/Homebrew/downloads/591a954a9144940e6043df922d9c9a9436ba3f24256274676d78e3edc1a92fc3--arial32.exe
==> Verifying checksum for '591a954a9144940e6043df922d9c9a9436ba3f24256274676d78e3edc1a92fc3--arial32.exe'
Warning: Cannot verify integrity of '591a954a9144940e6043df922d9c9a9436ba3f24256274676d78e3edc1a92fc3--arial32.exe'.
No checksum was provided.
For your reference, the checksum is:
  sha256 "85297a4d146e9c87ac6f74822734bdee5f4b2a722d7eaa584b7f2cbf76f478f6"
==> Installing font-arial from homebrew/linux-fonts
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/brew.rb (Formulary::FromTapLoader): loading homebrew/linux-fonts/font-arial
/usr/bin/env /var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/shims/shared/git --version
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb (Formulary::FromPathLoader): loading /var/home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-linux-fonts/Formula/font-arial.rb
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb (Formulary::FromAPILoader): loading gcc@11
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb (Formulary::FromAPILoader): loading binutils
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb (Formulary::FromAPILoader): loading make
/usr/bin/env /var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/shims/shared/git --version
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb (Formulary::FromAPILoader): loading gcc
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb (Formulary::FromAPILoader): loading gcc@14
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb (Formulary::FromAPILoader): loading gcc
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb (Formulary::FromAPILoader): loading gcc@14
cp -p /var/home/lubr/.cache/Homebrew/downloads/591a954a9144940e6043df922d9c9a9436ba3f24256274676d78e3edc1a92fc3--arial32.exe /tmp/font-arial-20250111-147200-nhi2ku/arial32.exe
==> Temporary files retained at:
/tmp/font-arial-20250111-147200-nhi2ku
Error: An exception occurred within a child process:
  TypeError: no implicit conversion of nil into String
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/extend/pathname.rb:113:in `basename'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/extend/pathname.rb:113:in `block in install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/extend/pathname.rb:94:in `each'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/extend/pathname.rb:94:in `install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-linux-fonts/Formula/font-arial.rb:7:in `install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/debrew.rb:15:in `block in install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/debrew.rb:86:in `debrew'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/debrew.rb:15:in `install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb:179:in `block (3 levels) in install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/extend/kernel.rb:539:in `with_env'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb:139:in `block (2 levels) in install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/formula.rb:1623:in `block in brew'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/formula.rb:3347:in `block (2 levels) in stage'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/extend/kernel.rb:539:in `with_env'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/formula.rb:3346:in `block in stage'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/resource.rb:114:in `block (2 levels) in unpack'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/download_strategy.rb:117:in `chdir'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/download_strategy.rb:102:in `stage'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/resource.rb:110:in `block in unpack'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/mktemp.rb:90:in `block in run'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/mktemp.rb:90:in `chdir'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/mktemp.rb:90:in `run'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/resource.rb:237:in `stage_resource'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/resource.rb:109:in `unpack'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/resource.rb:83:in `stage'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/vendor/portable-ruby/3.3.6/lib/ruby/3.3.0/forwardable.rb:240:in `stage'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/formula.rb:3324:in `stage'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/formula.rb:1616:in `brew'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb:133:in `block in install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/extend/kernel.rb:539:in `with_env'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb:125:in `install'
/var/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/build.rb:232:in `<main>'

Output of brew cask doctor

(I think, these instructions are no longer valid, but I provide the output anyway).

$ brew cask doctor
Error: `brew cask` is no longer a `brew` command. Use `brew <command> --cask` instead.