--- trunk/mage/usr/lib/mage/depwalker.sh	2007/11/05 16:49:33	598
+++ trunk/mage/usr/lib/mage/depwalker.sh	2011/12/28 09:55:37	1560
@@ -1,7 +1,6 @@
 #!/bin/bash
-
-#depwalker
-# $Header: /home/cvsd/magellan-cvs/magellan-src/mage/usr/lib/mage/depwalker.sh,v 1.6 2007-11-05 16:49:33 niro Exp $
+# $Id$
+# dependeny walker
 
 # default die function
 die()
@@ -22,27 +21,6 @@
 	source ${MLIBDIR}/mage4.functions.sh || \
 	die "mage functions missing"
 
-# for tests only
-# source /home/tjoke/alx-cvs/magellan-src/mage/usr/lib/mage/mage.rc.global
-# source /etc/mage.rc
-# source /home/tjoke/alx-cvs/magellan-src/mage/usr/lib/mage/mage4.functions.sh
-# MLIBDIR=/home/tjoke/alx-cvs/magellan-src/mage/usr/lib/mage
-
-# not serious if missing, only needed for colors
-[ -f /etc/init.d/functions ] && source /etc/init.d/functions
-
-# disable colors if wanted
-if [[ ${NOCOLORS} = true ]]
-then
-	COLRED=""
-	COLGREEN=""
-	COLYELLOW=""
-	COLBLUE=""
-	COLMAGENTA=""
-	COLWHITE=""
-	COLDEFAULT=""
-fi
-
 usage()
 {
 	echo
@@ -57,7 +35,7 @@
 	echo "                         install, srcinstall, depend, srcdepend"
 	echo "                         upgrade, srcupgrade"
 	echo
-	echo "method,name, version and build must be given !"
+	echo "method, name, version and build must be given !"
 	echo
 	exit 1
 }
@@ -106,6 +84,19 @@
 	return 0
 }
 
+checklist_processeddeps()
+{
+	local i
+	local item="$1"
+
+	for i in ${PROCESSEDDEPS}
+	do
+		[[ ${i} = ${item} ]] && return 1
+	done
+
+	return 0
+}
+
 #####################
 ##  rumwandern /path/to/mage/file/.mage
 rumwandern()
@@ -130,6 +121,14 @@
 	DFILE="$1"
 
 	source ${DFILE}
+
+	# forced nodeps
+	if [[ ${NODEPS} = true ]]
+	then
+		DEPEND=""
+		SDEPEND=""
+	fi
+
 	MY_DEPEND="${DEPEND}"
 
 	# for srcinstall & srcdepend only; SDEPEND also needed
@@ -162,6 +161,23 @@
 
 	while read SYM DEPNAME
 	do
+		# exclude empty depnames
+		[[ -z ${DEPNAME} ]] && continue
+
+		# exclude all already processed deps -without version
+		if ! checklist_processeddeps "${DEPNAME%-*}"
+		then
+			continue
+		fi
+
+		# mark depfile as processed to prevent double runs -without version
+		# but do not add any virtuals to PROCESSEDDEPS or their resolved
+		# pkgnames will be ignored and they are missing on the dependecy-list
+		if [[ ${DEPNAME/virtual\//} = ${DEPNAME} ]]
+		then
+			PROCESSEDDEPS="${PROCESSEDDEPS} ${DEPNAME%-*}"
+		fi
+
 		HIGHEST_DEPFILE=$(dep2highest_magefile "${DEPNAME}")
 
 		PCAT="$(magename2pcat ${HIGHEST_DEPFILE})"
@@ -214,6 +230,14 @@
 		# get the highest mage file from mage-db
 		MAGEFILE="$(get_highest_magefile ${PCAT} ${PNAME})"
 
+		# if no install candidate was found, record this
+		# and process with the next one
+		if [[ -z ${MAGEFILE} ]]
+		then
+			NO_UPGRADE_CANDIDATE="${NO_UPGRADE_CANDIDATE} ${PCAT}/${PNAME}"
+			continue
+		fi
+
 		# now get the pver&pbuild from the new file
 		PVER="$(magename2pver ${MAGEFILE})"
 		PBUILD="$(magename2pbuild ${MAGEFILE})"
@@ -279,6 +303,20 @@
 	echo "done"
 	echo -e "${list}"
 	echo
+
+	if [[ ! -z ${NO_UPGRADE_CANDIDATE} ]]
+	then
+		echo -e "${COLRED}Currently no candidates found for:${COLDEFAULT}"
+		for i in ${NO_UPGRADE_CANDIDATE}
+		do
+			echo -e "${COLRED}    ${i}${COLDEFAULT}"
+		done
+		echo
+		echo -e "${COLRED}Please consider to uninstall all of them first,${COLDEFAULT}"
+		echo -e "${COLRED}because these packages does not exist in this distribution${COLDEFAULT}"
+		echo -e "${COLRED}anymore and there will be no further support for them.${COLDEFAULT}"
+		echo
+	fi
 fi
 
 ## return output from src/install deps