Allow params.release to be either file or string (#50)

README.md

@@ -47,7 +47,7 @@ on the cluster.
 #### Parameters
 
 * `chart`: *Required.* Either the file containing the helm chart to deploy (ends with .tgz) or the name of the chart (e.g. `stable/mysql`).
-* `release`: *Optional.* File containing the name of the release. (Default: taken from source configuration).
+* `release`: *Optional.* Either a file containing the name of the release or the name of the release. (Default: taken from source configuration).
 * `values`: *Optional.* File containing the values.yaml for the deployment. Supports setting multiple value files using an array.
 * `override_values`: *Optional.* Array of values that can override those defined in values.yaml. Each entry in
   the array is a map containing a key and a value or path. Value is set directly while path reads the contents of

assets/out

@@ -42,7 +42,11 @@ if [ -z "$chart" ]; then
   exit 1
 fi
 if [ -n "$release_file" ]; then
-  release=`cat $source/$release_file`
+  if [ -f "$release_file" ]; then
+    release=`cat $source/$release_file`
+  else
+    release=$release_file
+  fi
 else
   release=$(jq -r '.source.release // ""' < $payload)
 fi