Revert "Moving to `whoami` fixes ambiguity on a multi-user system"

This reverts commit 18f615f08c.

cmake/debian/postinst

@@ -29,7 +29,7 @@ BOOT_BERRYBOOT=$(grep -m1 -c '\(/var/media\|/media/pi\)/berryboot' /etc/mtab)
 NET_IP=`hostname -I | cut -d " " -f1`
 
 # search for users in system, returns first entry
-FOUND_USR=`whoami` || "root"
+FOUND_USR=`who | grep -o -m1 '^\w*\b'` || "root"
 
 # determine if we should use a service
 ENABLE_SERVICE=0

cmake/debian/preinst

@@ -3,7 +3,7 @@
 echo "---Hyperion ambient light preinst ---"
 
 # search for users in system, returns first entry
-FOUND_USR=`whoami` || "root"
+FOUND_USR=`who | grep -o -m1 '^\w*\b'` || "root"
 
 # stop running daemon before we install
 if pgrep hyperiond > /dev/null 2>&1

cmake/debian/prerm

@@ -3,7 +3,7 @@
 echo "---Hyperion ambient light prerm ---"
 
 # search for users in system, returns first entry
-FOUND_USR=`whoami` || "root"
+FOUND_USR=`who | grep -o -m1 '^\w*\b'` || "root"
 
 # stop running daemon before we delete it
 HYPERION_RUNNING=false

cmake/rpm/postinst

@@ -29,7 +29,7 @@ BOOT_BERRYBOOT=$(grep -m1 -c '\(/var/media\|/media/pi\)/berryboot' /etc/mtab)
 NET_IP=`hostname -I | cut -d " " -f1`
 
 # search for users in system, returns first entry
-FOUND_USR=`whoami` || "root"
+FOUND_USR=`who | grep -o -m1 '^\w*\b'` || "root"
 
 # determine if we should use a service
 ENABLE_SERVICE=0

cmake/rpm/preinst

@@ -3,7 +3,7 @@
 echo "---Hyperion ambient light preinst ---"
 
 # search for users in system, returns first entry
-FOUND_USR=`whoami` || "root"
+FOUND_USR=`who | grep -o -m1 '^\w*\b'` || "root"
 
 # stop running daemon before we install
 if pgrep hyperiond > /dev/null 2>&1

cmake/rpm/prerm

@@ -3,7 +3,7 @@
 echo "---Hyperion ambient light prerm ---"
 
 # search for users in system, returns first entry
-FOUND_USR=`whoami` || "root"
+FOUND_USR=`who | grep -o -m1 '^\w*\b'` || "root"
 
 # stop running daemon before we delete it
 HYPERION_RUNNING=false