initial emacs-plus formulae

Formula/emacs-plus.rb

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+class EmacsPlus < Formula
+  desc "GNU Emacs text editor"
+  homepage "https://www.gnu.org/software/emacs/"
+  url "http://ftpmirror.gnu.org/emacs/emacs-24.5.tar.xz"
+  mirror "https://ftp.gnu.org/gnu/emacs/emacs-24.5.tar.xz"
+  sha256 "dd47d71dd2a526cf6b47cb49af793ec2e26af69a0951cc40e43ae290eacfc34e"
+
+  bottle do
+    revision 2
+    sha256 "2442a949678d9b3cbe99e9b504917a641de57258d2a40dc85e8a70efae82bb38" => :el_capitan
+    sha256 "751b8b481b30870273243eae77ea08eb2b0b5a2fbcbc62453b7cf7632ac69445" => :yosemite
+    sha256 "3889a7cbda704f604b3a6187c8683ea1e6e4e600e1e7a0b8b59f33533e8f3023" => :mavericks
+  end
+
+  devel do
+    url "http://alpha.gnu.org/gnu/emacs/pretest/emacs-25.0.91.tar.xz"
+    sha256 "d77ebd310dd8c978e15f29af33186646989534ae483aa8acafe6963244930193"
+    depends_on "autoconf" => :build
+    depends_on "automake" => :build
+  end
+
+  head do
+    url "https://github.com/emacs-mirror/emacs.git"
+    depends_on "autoconf" => :build
+    depends_on "automake" => :build
+  end
+
+  option "with-cocoa", "Build a Cocoa version of emacs"
+  option "with-ctags", "Don't remove the ctags executable that emacs provides"
+  option "without-libxml2", "Don't build with libxml2 support"
+  option "with-spacemacs-icon", "Using the spacemacs Emacs icon by Nasser Alshammari"
+
+  deprecated_option "cocoa" => "with-cocoa"
+  deprecated_option "keep-ctags" => "with-ctags"
+  deprecated_option "with-x" => "with-x11"
+
+  depends_on "pkg-config" => :build
+  depends_on :x11 => :optional
+  depends_on "d-bus" => :optional
+  depends_on "gnutls" => :optional
+  depends_on "librsvg" => :optional
+  depends_on "imagemagick" => :optional
+  depends_on "mailutils" => :optional
+  depends_on "glib" => :optional
+
+  # https://github.com/Homebrew/homebrew/issues/37803
+  if build.with? "x11"
+    depends_on "freetype" => :recommended
+    depends_on "fontconfig" => :recommended
+  end
+
+  fails_with :llvm do
+    build 2334
+    cause "Duplicate symbol errors while linking."
+  end
+
+  def install
+    args = ["--prefix=#{prefix}",
+            "--enable-locallisppath=#{HOMEBREW_PREFIX}/share/emacs/site-lisp",
+            "--infodir=#{info}/emacs",
+           ]
+
+    args << "--with-file-notification=gfile" if build.with? "glib"
+
+    if build.with? "libxml2"
+      args << "--with-xml2"
+    else
+      args << "--without-xml2"
+    end
+
+    if build.with? "d-bus"
+      args << "--with-dbus"
+    else
+      args << "--without-dbus"
+    end
+
+    if build.with? "gnutls"
+      args << "--with-gnutls"
+    else
+      args << "--without-gnutls"
+    end
+
+    args << "--with-rsvg" if build.with? "librsvg"
+    args << "--with-imagemagick" if build.with? "imagemagick"
+    args << "--without-popmail" if build.with? "mailutils"
+
+    system "./autogen.sh" if build.head? || build.devel?
+
+    if build.with? "cocoa"
+      args << "--with-ns" << "--disable-ns-self-contained"
+      system "./configure", *args
+      system "make"
+      system "make", "install"
+
+      # Remove when 25.1 is released
+      if build.stable?
+        chmod 0644, %w[nextstep/Emacs.app/Contents/PkgInfo
+                       nextstep/Emacs.app/Contents/Resources/Credits.html
+                       nextstep/Emacs.app/Contents/Resources/document.icns
+                       nextstep/Emacs.app/Contents/Resources/Emacs.icns]
+      end
+
+      # icons
+      if build.with? "spacemacs-icon"
+        icon_file = "nextstep/Emacs.app/Contents/Resources/Emacs.icns"
+        spacemacs_icons = "https://github.com/nashamri/spacemacs-logo/blob/master/spacemacs.icns?raw=true"
+        rm "#{icon_file}"
+        curl "-L", "#{spacemacs_icons}", "-o", "#{icon_file}"
+      end
+
+      prefix.install "nextstep/Emacs.app"
+
+      # Replace the symlink with one that avoids starting Cocoa.
+      (bin/"emacs").unlink # Kill the existing symlink
+      (bin/"emacs").write <<-EOS.undent
+        #!/bin/bash
+        exec #{prefix}/Emacs.app/Contents/MacOS/Emacs "$@"
+      EOS
+    else
+      if build.with? "x11"
+        # These libs are not specified in xft's .pc. See:
+        # https://trac.macports.org/browser/trunk/dports/editors/emacs/Portfile#L74
+        # https://github.com/Homebrew/homebrew/issues/8156
+        ENV.append "LDFLAGS", "-lfreetype -lfontconfig"
+        args << "--with-x"
+        args << "--with-gif=no" << "--with-tiff=no" << "--with-jpeg=no"
+      else
+        args << "--without-x"
+      end
+      args << "--without-ns"
+
+      system "./configure", *args
+      system "make"
+      system "make", "install"
+    end
+
+    # Follow MacPorts and don't install ctags from Emacs. This allows Vim
+    # and Emacs and ctags to play together without violence.
+    if build.without? "ctags"
+      (bin/"ctags").unlink
+      (man1/"ctags.1.gz").unlink
+    end
+  end
+
+  def caveats
+    if build.with? "cocoa" then <<-EOS.undent
+      A command line wrapper for the cocoa app was installed to:
+        #{bin}/emacs
+      EOS
+    end
+  end
+
+  def plist; <<-EOS.undent
+    <?xml version="1.0" encoding="UTF-8"?>
+    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+    <plist version="1.0">
+    <dict>
+      <key>Label</key>
+      <string>#{plist_name}</string>
+      <key>ProgramArguments</key>
+      <array>
+        <string>#{opt_bin}/emacs</string>
+        <string>--daemon</string>
+      </array>
+      <key>RunAtLoad</key>
+      <true/>
+    </dict>
+    </plist>
+    EOS
+  end
+
+  test do
+    assert_equal "4", shell_output("#{bin}/emacs --batch --eval=\"(print (+ 2 2))\"").strip
+  end
+end

README.md

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+# Emacs Plus
+
+This tap contains `emacs` formula with some additional options that are not part of official formulae.
+
+## Install
+
+```
+$ brew tap d12frosted/emacs-plus
+$ brew install emacs-plus [options]
+```
+
+## Options
+
+* `--with-spacemacs-icon` - use Spacemacs Emacs icon by Nasser Alshammari