Use _split_longopt with yum, add some option (non-)completions.

CHANGES

@@ -39,8 +39,8 @@ bash-completion (1.x)
   * Split yum and yum-arch completion into contrib/yum.
   * Install yum-arch completion only if yum-arch is installed.
   * Update list of yum commands and options.
-  * Add yum repolist, --enable/disablerepo, --disableexcludes, -d, and -e
-    completions.
+  * Add yum repolist, --enable/disablerepo, --disableexcludes, -d, -e, and
+    --color completions.
   * Add chkconfig --override and resetpriorities completions.
   * Split mplayer and friends completions to contrib/mplayer.
   * Parse top level mplayer and friends option completions from -list-options.
@@ -65,7 +65,7 @@ bash-completion (1.x)
     take arguments in both "--foo bar" and "--foo=bar" formats.
   * Use _split_longopt to improve and clean up aspell, chgrp, chown, chkconfig,
     cpio, dpkg, iptables, make, mc, mii-diag, mii-tool, mkinitrd, pkg-config,
-    postgresql, quota, samba, smartctl, and generic long option completion
+    postgresql, quota, samba, smartctl, yum, and generic long option completion
     (Alioth: #311398).
   * Add chown --from and --reference value completions.
   * Add chgrp --reference value completion.

contrib/yum

@@ -30,7 +30,7 @@ _yum_repolist()
 
 _yum()
 {
-	local cur prev special
+	local cur prev special split=false
 
 	COMPREPLY=()
 	cur=`_get_cword`
@@ -69,15 +69,7 @@ _yum()
 		esac
 	fi
 
-	if [[ "$cur" == -* ]]; then
-		COMPREPLY=( $( compgen -W '-h --help -t --tolerant -C -c -R \
-			-d --showduplicates -e -q --quiet -v --verbose -y \
-			--version --installroot --enablerepo --disablerepo -x \
-			--exclude --disableexcludes --obsoletes --noplugins \
-			--nogpgcheck --disableplugin --enableplugin \
-			--skip-broken --color' -- $cur ) )
-		return 0
-	fi
+	_split_longopt && split=true
 
 	case $prev in
 		list)
@@ -118,6 +110,17 @@ _yum()
 			COMPREPLY=( $( compgen -W '$( _yum_repolist all ) \
 				all main' -- $cur ) )
 			;;
+		--color)
+			COMPREPLY=( $( compgen -W 'always auto never' -- $cur ))
+			;;
+		-R|-x|--exclude)
+			# argument required but no completions available
+			return 0
+			;;
+		-h|--help|--version)
+			# no other options useful with these
+			return 0
+			;;
 		*)
 			COMPREPLY=( $( compgen -W 'install update \
 				check-update upgrade remove erase list info \
@@ -128,6 +131,18 @@ _yum()
 				help' -- $cur ) )
 			;;
 	esac
+
+	$split && return 0
+
+	if [[ "$cur" == -* ]]; then
+		COMPREPLY=( $( compgen -W '-h --help -t --tolerant -C -c -R \
+			-d --showduplicates -e -q --quiet -v --verbose -y \
+			--version --installroot --enablerepo --disablerepo -x \
+			--exclude --disableexcludes --obsoletes --noplugins \
+			--nogpgcheck --disableplugin --enableplugin \
+			--skip-broken --color' -- $cur ) )
+		return 0
+	fi
 }
 } &&
 complete -F _yum $filenames yum