New Package: picom (#4284)

packages/picom.rb

+require 'package'
+
+class Picom < Package
+  description 'Lightweight compositor for X11 (previously a compton fork)'
+  homepage 'https://github.com/yshui/picom/'
+  version '8'
+  compatibility 'all'
+  source_url 'https://github.com/yshui/picom/archive/v8.tar.gz'
+  source_sha256 'f839a3c058ca90f463eae3973a9381cf2fe93be7d0e58db1c28ea72acd10480f'
+
+  depends_on 'mesa'
+  depends_on 'dbus'
+  depends_on 'libconfig'
+  depends_on 'libev'
+  depends_on 'pcre'
+  depends_on 'pixman'
+  depends_on 'xcb_util_image'
+  depends_on 'xcb_util_renderutil'
+  depends_on 'xdg_base'
+  depends_on 'uthash'
+  depends_on 'desktop_file_utilities'
+
+  def self.build
+    system "meson --prefix=#{CREW_PREFIX} --libdir=#{CREW_LIB_PREFIX} _build -Dopengl=false" # Glx backend cannot be used yet
+    system 'ninja -v -C _build'
+  end
+  
+  def self.install
+    system "DESTDIR=#{CREW_DEST_DIR} ninja -C _build install"
+  end
+  def self.postinstall
+    puts
+    puts "Note that picom requires a Window Manager to be running - Sommelier does not count".lightblue
+    puts "Some examples are: Berry, Openbox, i3, sowm, bspwm, and dwm".lightblue
+    puts
+  end
+end