Port Chromium to SlapOS with headless mode

component/headless-chromium/buildout.cfg

+[buildout]
+extends =
+  ../bison/buildout.cfg
+  ../pkgconfig/buildout.cfg
+  ../gperf/buildout.cfg
+  ../ninja/buildout.cfg
+  ../freetype/buildout.cfg
+  ../cmake/buildout.cfg
+  ../git/buildout.cfg
+  ../mpfr/buildout.cfg
+  ../pkgconfig/buildout.cfg
+  ../cups/buildout.cfg
+  ../coreutils/buildout.cfg
+  ../depot_tools/buildout.cfg
+  ../findutils/buildout.cfg
+  ../fontconfig/buildout.cfg
+  ../gettext/buildout.cfg
+  ../glib/buildout.cfg
+  ../gtk-2/buildout.cfg
+  ../libexpat/buildout.cfg
+  ../libffi/buildout.cfg
+  ../libpng/buildout.cfg
+  ../libxml2/buildout.cfg
+  ../mesa/buildout.cfg
+  ../nspr/buildout.cfg
+  ../nss/buildout.cfg
+  ../pcre/buildout.cfg
+  ../sqlite3/buildout.cfg
+  ../xorg/buildout.cfg
+  ../zlib/buildout.cfg
+
+parts =
+  chromium
+
+[gconf]
+recipe = slapos.recipe.cmmi
+url = http://ftp.gnome.org/pub/gnome/sources/GConf/3.2/GConf-3.2.6.tar.xz
+md5sum = 2b16996d0e4b112856ee5c59130e822c
+configure-options = --disable-orbit --disable-static
+environment =
+  PATH=${pkgconfig:location}/bin:${intltool:location}/bin:${gettext:location}/bin:${glib:location}/bin:%(PATH)s
+  PKG_CONFIG_PATH=${glib:location}/lib/pkgconfig:${pcre:location}/lib/pkgconfig:${libxml2:location}/lib/pkgconfig:${dbus:location}/lib/pkgconfig:${dbus-glib:location}/lib/pkgconfig:$PKG_CONFIG_PATH
+
+[chromedriver]
+recipe = hexagonit.recipe.download
+url = https://chromedriver.storage.googleapis.com/2.28/chromedriver_linux64.zip
+md5sum = a72088c0a6b018ded2c0fff616da8f65
+
+[chromium-download]
+recipe = plone.recipe.command
+# This revision is 56.0.2924.122. Because the chromedriver only support some certain
+# version. Which version 56 is in the middle of 55-57.
+revision = faf03429d9c3dbd483700dd42316b20776cbbd3c
+path = ${buildout:parts-directory}/${:_buildout_section_name_}
+command =
+  set -e
+  PATH=${depot_tools:location}:${git:location}/bin:$PATH
+  [ -d ${:path} ] && rm -r ${:path}
+  mkdir -p ${:path}
+  cd ${:path}
+  # Do never use `fetch` with the `--no-history` option unless you find an
+  # option to fetch directly at the wanted revision. `--no-history` could
+  # reduce the download size significantly but even if it retrieves enough
+  # commits at the time you test this section, development continues upstream
+  # and at some point the next command (gclient) would break.
+  # ...
+  # This command only could work in an empty dir.
+  fetch --nohooks chromium
+  gclient sync --revision ${:revision} --with_branch_heads
+stop-on-error = true
+
+[chromium]
+recipe = slapos.recipe.cmmi
+path = ${chromium-download:path}/src
+location = ${buildout:parts-directory}/${:_buildout_section_name_}
+configure-command =
+  gclient runhooks
+  mkdir -p ${:location}
+  echo 'use_udev = true
+  is_debug = false
+  enable_nacl = false' > ${:location}/args.gn
+  gn gen ${:location}
+
+# Note you can run Chromium manually by: ${:location}/chrome --headless --no-sandbox --disable-gpu
+make-binary = ninja -C ${:location} chrome
+environment =
+  PKG_CONFIG_PATH=${freetype:location}/lib/pkgconfig:${zlib:location}/lib/pkgconfig:${libpng:location}/lib/pkgconfig:${randrproto:location}/lib/pkgconfig:$PKG_CONFIG_PATH
+  PATH=${chromedriver:location}:${dbus:location}/bin:${depot_tools:location}:${pkgconfig:location}/bin:${ninja:path}/:${bison:location}/bin:${gperf:location}/bin:${xserver:location}/bin:%(PATH)s
+  CPATH=${dbus:location}/include/dbus-1.0:${dbus:location}/lib/dbus-1.0/include/:${freetype:location}/include/freetype2:${libffi:location}/include:${mpfr:location}/include:${ncurses:location}/include:${openssl:location}/include:${readline:location}/include:${sqlite3:location}/include:${zlib:location}/include:${bzip2:location}/include:$CPATH
+  LD_LIBRARY_PATH=${alsa:location}/lib:${gconf:location}/lib:${libXScrnSaver:location}/lib:${glib:location}/lib:${atk:location}/lib:${cairo:location}/lib:${cups:location}/lib:${dbus:location}/lib:${dbus-glib:location}/lib:${fontconfig:location}/lib/:${gdk-pixbuf:location}/lib:${gettext:location}/lib:${glib:location}/lib:${gtk-2:location}/lib:${harfbuzz:location}/lib:${libX11:location}/lib:${libXau:location}/lib:${libXcomposite:location}/lib:${libXcursor:location}/lib:${libXext:location}/lib:${libXi:location}/lib:${libXrender:location}/lib/:${libXtst:location}/lib:${libexpat:location}/lib:${libffi:location}/lib:${libpng:location}/lib:${libpng12:location}/lib:${libxcb:location}/lib:${libxml2:location}/lib:${mesa:location}/lib:${nspr:location}/lib:${nss:location}/lib:${pango:location}/lib:${pcre:location}/lib:${pixman:location}/lib:${sqlite3:location}/lib:${xdamage:location}/lib:${xfixes:location}/lib:${zlib:location}/lib:$LD_LIBRARY_PATH