From c3a036e54fa94e3874ccd1802fcd1d17ef0c4144 Mon Sep 17 00:00:00 2001
From: Matthew Thode <mthode@mthode.org>
Date: Mon, 22 Aug 2016 07:14:25 -0500
Subject: [PATCH] Update portage only if needed

Currently we update portage whenever we could need it.  Instead we
should update portage only if we actually need to.  This update adds a
check to do so.

Change-Id: Ifdb27fd844b0b3a169ced945ac7ee0ddc235e9ec
---
 elements/gentoo/bin/install-packages | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/elements/gentoo/bin/install-packages b/elements/gentoo/bin/install-packages
index d452b177..f0a4bf49 100755
--- a/elements/gentoo/bin/install-packages
+++ b/elements/gentoo/bin/install-packages
@@ -79,7 +79,9 @@ eval set -- "${TEMP}"
 while true; do
     case "${1}" in
         -u )
-            emerge-webrsync -q
+            if [[ ! -f /usr/portage/profiles ]]; then
+                emerge-webrsync -q
+            fi
             install_gentoo_packages -uDNv --with-bdeps=y --jobs=2 @world
             install_gentoo_packages --verbose=n --depclean
             install_gentoo_packages -v --usepkg=n @preserved-rebuild
@@ -122,10 +124,14 @@ if [[ -z "${PKGS}" ]]; then
     echo "Not running install-packages ${ACTION} with empty packages list"
 else
     if [[ "${ACTION}" == 'install' ]]; then
-        emerge-webrsync -q
+        if [[ ! -f /usr/portage/profiles ]]; then
+            emerge-webrsync -q
+        fi
         install_gentoo_packages -q --jobs=2 --changed-use "${PKGS}"
     elif [[ "${ACTION}" == 'remove' ]]; then
-        emerge-webrsync -q
+        if [[ ! -f /usr/portage/profiles ]]; then
+            emerge-webrsync -q
+        fi
         install_gentoo_packages -C "${PKGS}"
     else
         echo 'something when really wrong, install action is not install or remove'