[modules/packages] Added support for Portage and Entropy

CMakeModules/BoostPython3.cmake

@@ -8,7 +8,7 @@
 # what FindBoost.cmake is looking for. It looks for a library named
 # "libboost_${component}.so".
 #
-# On Gentoo instead, the >=dev-libs/boost-1.54 package provides boost library 
+# On Gentoo instead, the >=dev-libs/boost-1.54 package provides boost library
 # with a name like:
 # libboost_python-2.7.so
 # libboost_python-3.3.so
@@ -16,9 +16,9 @@
 # depending on what python's targets you selected during install
 #
 # find_boost_python3() tries to find the package with different component
-# names. By default it tries "python3", "python-py$suffix" and 
-# "python-$dotsuffix", where suffix is based on the `python_version` argument. 
-# One can supply a custom component name by setting the 
+# names. By default it tries "python3", "python-py$suffix" and
+# "python-$dotsuffix", where suffix is based on the `python_version` argument.
+# One can supply a custom component name by setting the
 # `CALAMARES_BOOST_PYTHON3_COMPONENT` variable at CMake time.
 
 set( CALAMARES_BOOST_PYTHON3_COMPONENT python3 CACHE STRING
@@ -40,7 +40,7 @@ macro( find_boost_python3 boost_version python_version found_var )
             break()
         endif()
     endforeach()
-    # The following loop chage the searched name for Gentoo based distributions 
+    # The following loop changes the searched name for Gentoo based distributions
     # turns "3.4.123abc" into "3.4"
     string( REGEX REPLACE "([0-9]+)\\.([0-9]+)\\..*" "\\1.\\2" _fbp_python_short_version ${python_version} )
     foreach( _fbp_name ${CALAMARES_BOOST_PYTHON3_COMPONENT} python-${_fbp_python_short_version} )

src/modules/packages/main.py

@@ -55,6 +55,10 @@ class PackageManager:
         elif self.backend == "pacman":
             pacman_flags = "-U" if from_local else "-Sy"
             check_chroot_call(["pacman", pacman_flags, "--noconfirm"] + pkgs)
+        elif self.backend == "portage":
+            check_chroot_call(["emerge", "-v"] + pkgs)
+        elif self.backend == "entropy":
+            check_chroot_call(["equo", "i"] + pkgs)
 
     def remove(self, pkgs):
         """ Removes packages.
@@ -78,6 +82,10 @@ class PackageManager:
             check_chroot_call(["apt-get", "--purge", "-q", "-y", "autoremove"])
         elif self.backend == "pacman":
             check_chroot_call(["pacman", "-Rs", "--noconfirm"] + pkgs)
+        elif self.backend == "portage":
+            check_chroot_call(["emerge", "-C"] + pkgs)
+        elif self.backend == "entropy":
+            check_chroot_call(["equo", "rm"] + pkgs)
 
 
 def run_operations(pkgman, entry):
@@ -102,7 +110,7 @@ def run():
     :return:
     """
     backend = libcalamares.job.configuration.get("backend")
-    if backend not in ("packagekit", "zypp", "yum", "dnf", "urpmi", "apt", "pacman"):
+    if backend not in ("packagekit", "zypp", "yum", "dnf", "urpmi", "apt", "pacman", "portage", "entropy"):
         return ("Bad backend", "backend=\"{}\"".format(backend))
 
     pkgman = PackageManager(backend)

src/modules/packages/packages.conf

@@ -8,6 +8,8 @@
 #  - urpmi       - Mandriva package manager
 #  - apt         - APT frontend for DEB and RPM
 #  - pacman      - Pacman
+#  - portage	 - Gentoo package manager
+#  - entropy	 - Sabayon package manager
 #
 backend: packagekit
 #