changes to only generate new package if helm chart has changes

Author: juan.hermosillo@oracle.com

docs/charts/index.yaml

@@ -1,11 +1,11 @@
 apiVersion: v1
 entries:
   weblogic-operator:
-  - created: 2019-02-11T18:48:21.585588875-08:00
+  - created: 2019-02-13T14:31:18.637128976-08:00
     description: Helm package for creation of the Weblogic operator.
     digest: de086ca50a523ec94afc216b0b45ca7d431c6c9c454ea5d26c1ccd76220a5e7f
     name: weblogic-operator
     urls:
     - https://oracle.github.io/weblogic-kubernetes-operator/charts/weblogic-operator-2.tgz
     version: "2"
-generated: 2019-02-11T18:48:21.584441288-08:00
+generated: 2019-02-13T14:31:18.636253861-08:00

docs/charts/weblogic-operator-2.tgz

@@ -1,11 +1,11 @@
 apiVersion: v1
 entries:
   weblogic-operator:
-  - created: 2019-02-11T18:48:21.585588875-08:00
+  - created: 2019-02-13T14:31:18.637128976-08:00
     description: Helm package for creation of the Weblogic operator.
     digest: de086ca50a523ec94afc216b0b45ca7d431c6c9c454ea5d26c1ccd76220a5e7f
     name: weblogic-operator
     urls:
     - https://oracle.github.io/weblogic-kubernetes-operator/charts/weblogic-operator-2.tgz
     version: "2"
-generated: 2019-02-11T18:48:21.584441288-08:00
+generated: 2019-02-13T14:31:18.636253861-08:00

kubernetes/charts/weblogic-operator/index.yaml

@@ -1,12 +1,38 @@
 #!/bin/bash
+# Copyright 2019, Oracle Corporation and/or its affiliates.  All rights reserved.
+# Licensed under the Universal Permissive License v 1.0 as shown at http://oss.oracle.com/licenses/upl.
 
 SCRIPTPATH="$( cd "$(dirname "$0")" > /dev/null 2>&1 ; pwd -P )"
+WOCHARTPATH="$SCRIPTPATH/charts/weblogic-operator"
 
-out="$(helm package $SCRIPTPATH/charts/weblogic-operator)"
+if uname | grep -q "Darwin"; then
+    mod_time_fmt="-f %m"
+else
+    mod_time_fmt="-c %Y"
+fi
+
+# Find latest file in source directory
+unset -v latest
+for file in "$WOCHARTPATH"/*; do
+  [[ $file -nt $latest ]] && latest=$file
+done
+
+srctime="$(stat $mod_time_fmt $latest)"
+
+out="$(helm package $WOCHARTPATH -d $SCRIPTPATH)"
 helm_package=$(echo $out | cut -d ':' -f 2)
-helm repo index $SCRIPTPATH/charts/weblogic-operator/ --url https://oracle.github.io/weblogic-kubernetes-operator/charts
+helm_package_name=$(basename $helm_package)
+
+dsttime="$(stat $mod_time_fmt $SCRIPTPATH/../docs/charts/$helm_package_name)"
+
+if [ $srctime \> $dsttime ];
+then
+  helm repo index $WOCHARTPATH/ --url https://oracle.github.io/weblogic-kubernetes-operator/charts
 
-cp $SCRIPTPATH/charts/weblogic-operator/index.yaml $SCRIPTPATH/../docs/charts
-mv $helm_package $SCRIPTPATH/../docs/charts/
+  cp $WOCHARTPATH/index.yaml $SCRIPTPATH/../docs/charts
+  mv $helm_package $SCRIPTPATH/../docs/charts/ -f
+else
+  rm $helm_package
+fi;