class GnuTar < Formula desc "GNU version of the tar archiving utility" homepage "https://www.gnu.org/software/tar/" url "https://ftp.gnu.org/gnu/tar/tar-1.30.tar.gz" mirror "https://ftpmirror.gnu.org/tar/tar-1.30.tar.gz" sha256 "4725cc2c2f5a274b12b39d1f78b3545ec9ebb06a6e48e8845e1995ac8513b088" bottle do sha256 "2a112e5b1a9c895ef51cb85d5ae0f02c9804ada9e9f55cbd8f698ec63b51c69b" => :mojave sha256 "ad87e1488b6d1a2db804c348abf05143b6b7310402c7928f725305c295599708" => :high_sierra sha256 "5a04574acb1ff235b2509e70cb207e6379a8c83191986131bba52717c328fc1b" => :sierra sha256 "1a559b78e6f1a6594b18a9ba2aa2e9828af2736aacc4aec07911fe7638e80e68" => :el_capitan end head do url "https://git.savannah.gnu.org/git/tar.git" depends_on "autoconf" => :build depends_on "automake" => :build depends_on "gettext" => :build end option "with-default-names", "Do not prepend 'g' to the binary" def install # Work around unremovable, nested dirs bug that affects lots of # GNU projects. See: # https://github.com/Homebrew/homebrew/issues/45273 # https://github.com/Homebrew/homebrew/issues/44993 # This is thought to be an el_capitan bug: # https://lists.gnu.org/archive/html/bug-tar/2015-10/msg00017.html ENV["gl_cv_func_getcwd_abort_bug"] = "no" if MacOS.version == :el_capitan args = ["--prefix=#{prefix}", "--mandir=#{man}"] args << "--program-prefix=g" if build.without? "default-names" system "./bootstrap" if build.head? system "./configure", *args system "make", "install" # Symlink the executable into libexec/gnubin as "tar" if build.without? "default-names" (libexec/"gnubin").install_symlink bin/"gtar" =>"tar" (libexec/"gnuman/man1").install_symlink man1/"gtar.1" => "tar.1" end end def caveats if build.without? "default-names" then <<~EOS gnu-tar has been installed as "gtar". If you really need to use it as "tar", you can add a "gnubin" directory to your PATH from your bashrc like: PATH="#{opt_libexec}/gnubin:$PATH" Additionally, you can access their man pages with normal names if you add the "gnuman" directory to your MANPATH from your bashrc as well: MANPATH="#{opt_libexec}/gnuman:$MANPATH" EOS end end test do tar = build.with?("default-names") ? bin/"tar" : bin/"gtar" (testpath/"test").write("test") system tar, "-czvf", "test.tar.gz", "test" assert_match /test/, shell_output("#{tar} -xOzf test.tar.gz") end end