(rpmlog): added --last-changelog command

bin/rpmlog

@@ -26,7 +26,8 @@ if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
 	echog "   -q  quiet mode (do not ask anything)"
 	echog "   -n VERSION  set version and reset release"
 	echo
-	echog "   --last-version  show current version of build"
+	echog "   --last-version    show current version of build"
+	echog "   --last-changelog  show changelog the latest build"
 	echo
 	echog "Example:"
 	echog "   $ rpmlog -v -l             - typical build new version"
@@ -84,6 +85,12 @@ if [ "$1" = "--last-version" ] ; then
     shift
 fi
 
+LASTCHANGELOGCMD=
+if [ "$1" = "--last-changelog" ] ; then
+    LASTCHANGELOGCMD=1
+    shift
+fi
+
 if [ -n "${1/*.spec/}" ] || [ -z "$1" ] ; then
 	SPECNAME=$(get_gear_spec)
 	[ -z "$QUIET" ] && echo "Using autodetected spec $SPECNAME..."
@@ -108,7 +115,7 @@ if [ ! -r "$SPECNAME" ] ; then
 	fatal "Spec $SPECNAME does not found"
 fi
 
-[ -n "$CHANGELOGADD$CHANGELOGUPDATE$TESTRUN$LASTVERCMD" ] || fatal "Run with -t param for test or with -h for help"
+[ -n "$CHANGELOGADD$CHANGELOGUPDATE$TESTRUN$LASTVERCMD$LASTCHANGELOGCMD" ] || fatal "Run with -t param for test or with -h for help"
 
 if [ -z "$FROMTAG" ] ; then
 	build_rpms_name $SPECNAME
@@ -150,9 +157,13 @@ fi
 
 if [ -n "$LASTVERCMD" ] ; then
     echo $(get_version $SPECNAME)-$(get_release $SPECNAME)
-    exit 0
+    exit $?
 fi
 
+if [ -n "$LASTCHANGELOGCMD" ] ; then
+    get_last_changelog $SPECNAME
+    exit $?
+fi
 
 # increment release
 case "$INCREMENTMODE" in

share/eterbuild/functions/spec

@@ -359,3 +359,28 @@ remove_bashism()
 	rm -f $SPECNAME.main $SPECNAME.changelog
 }
 
+get_last_changelog()
+{
+	local SPEC="$1"
+	
+	local beg=
+	local wait_end=
+	while read line ; do
+	      
+		if echo $line | grep -q '%changelog'; then
+		    beg=1
+		    continue
+		fi
+		
+		[ -z "$beg" ] && continue
+
+		# check end of changelog (skip last changelog line)
+		if echo "$line" | grep '*' | grep -E '[<>]+' | grep -q -E "[0-9.]+.[0-9]+"; then
+		    [ -n "$wait_end" ] && return
+		    wait_end=1
+		fi
+		
+		echo "$line"
+		
+	done < $SPEC
+}