Sync with oslo incubator

Sync with oslo incubator at 45890dae35cd14a25175cdce7c12a5f9acbd712f

Change-Id: I44ecc69f1d952061be7cb2f41678b879ded93eae

tools/config/check_uptodate.sh

@@ -16,6 +16,10 @@ TEMPDIR=`mktemp -d /tmp/${PROJECT_NAME}.XXXXXX`
 trap "rm -rf $TEMPDIR" EXIT
 
 tools/config/generate_sample.sh -b ./ -p ${PROJECT_NAME} -o ${TEMPDIR}
+if [ $? != 0 ]
+then
+    exit 1
+fi
 
 if ! diff -u ${TEMPDIR}/${CFGFILE_NAME} ${CFGFILE}
 then

tools/config/generate_sample.sh

@@ -1,5 +1,15 @@
 #!/usr/bin/env bash
 
+# Generate sample configuration for your project.
+#
+# Aside from the command line flags, it also respects a config file which
+# should be named oslo.config.generator.rc and be placed in the same directory.
+#
+# You can then export the following variables:
+# HEAT_CONFIG_GENERATOR_EXTRA_MODULES: list of modules to interrogate for options.
+# HEAT_CONFIG_GENERATOR_EXTRA_LIBRARIES: list of libraries to discover.
+# HEAT_CONFIG_GENERATOR_EXCLUDED_FILES: list of files to remove from automatic listing.
+
 print_hint() {
     echo "Try \`${0##*/} --help' for more information." >&2
 }
@@ -115,6 +125,11 @@ DEFAULT_MODULEPATH=heat.openstack.common.config.generator
 MODULEPATH=${MODULEPATH:-$DEFAULT_MODULEPATH}
 OUTPUTFILE=$OUTPUTDIR/$PACKAGENAME.conf.sample
 python -m $MODULEPATH $MODULES $LIBRARIES $FILES > $OUTPUTFILE
+if [ $? != 0 ]
+then
+    echo "Can not generate $OUTPUTFILE"
+    exit 1
+fi
 
 # Hook to allow projects to append custom config file snippets
 CONCAT_FILES=$(ls $BASEDIR/tools/config/*.conf.sample 2>/dev/null)