From cf905f52dbb9cfb20d08ec943419c8224166f4b6 Mon Sep 17 00:00:00 2001
From: "maxim.manuylov" <maxim.manuylov@gmail.com>
Date: Wed, 23 Aug 2017 20:40:49 +0300
Subject: [PATCH] cached variables

---
 build.sh                       |  2 +-
 ext/provider_ext.go            | 44 ++++++++++++++++++++++++++++++++++
 ext/resource_ext_cached_var.go | 42 ++++++++++++++++++++++++++++++++
 3 files changed, 87 insertions(+), 1 deletion(-)
 create mode 100644 ext/resource_ext_cached_var.go

diff --git a/build.sh b/build.sh
index cb7e401..f6498ef 100644
--- a/build.sh
+++ b/build.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-VERSION="v1.4"
+VERSION="v1.5"
 
 govendor sync
 
diff --git a/ext/provider_ext.go b/ext/provider_ext.go
index d699f14..2646166 100644
--- a/ext/provider_ext.go
+++ b/ext/provider_ext.go
@@ -80,6 +80,50 @@ func Provider() terraform.ResourceProvider {
                 Delete: deleteRemote,
             },
 
+            "ext_cached_var": {
+                Schema: map[string]*schema.Schema{
+                    "value": {
+                        Type: schema.TypeString,
+                        Required: true,
+                    },
+                    "cached": {
+                        Type: schema.TypeString,
+                        Computed: true,
+                    },
+                    "trigger": {
+                        Type: schema.TypeString,
+                        Optional: true,
+                    },
+                },
+                Create: createCachedVar,
+                Read:   readCachedVar,
+                Update: updateCachedVar,
+                Delete: deleteCachedVar,
+            },
+
+            "ext_cached_svar": {
+                Schema: map[string]*schema.Schema{
+                    "value": {
+                        Type: schema.TypeString,
+                        Required: true,
+                        Sensitive: true,
+                    },
+                    "cached": {
+                        Type: schema.TypeString,
+                        Computed: true,
+                        Sensitive: true,
+                    },
+                    "trigger": {
+                        Type: schema.TypeString,
+                        Optional: true,
+                    },
+                },
+                Create: createCachedVar,
+                Read:   readCachedVar,
+                Update: updateCachedVar,
+                Delete: deleteCachedVar,
+            },
+
         },
 
         DataSourcesMap: map[string]*schema.Resource{
diff --git a/ext/resource_ext_cached_var.go b/ext/resource_ext_cached_var.go
new file mode 100644
index 0000000..07e8872
--- /dev/null
+++ b/ext/resource_ext_cached_var.go
@@ -0,0 +1,42 @@
+package ext
+
+import (
+    "github.com/hashicorp/go-uuid"
+    "github.com/hashicorp/terraform/helper/schema"
+)
+
+func createCachedVar(resourceData *schema.ResourceData, _ interface{}) error {
+    id, err := uuid.GenerateUUID()
+    if err != nil {
+        return err
+    }
+
+    cacheValue(resourceData)
+    
+    resourceData.SetId(id)
+
+    return nil
+}
+
+func readCachedVar(_ *schema.ResourceData, _ interface{}) error {
+    return nil
+}
+
+func updateCachedVar(resourceData *schema.ResourceData, _ interface{}) error {
+    if resourceData.HasChange("trigger") {
+        cacheValue(resourceData)
+    }
+
+    return nil
+}
+
+func deleteCachedVar(resourceData *schema.ResourceData, _ interface{}) error {
+    resourceData.SetId("")
+    resourceData.Set("cached", "")
+
+    return nil
+}
+
+func cacheValue(resourceData *schema.ResourceData) {
+    resourceData.Set("cached", resourceData.Get("value"))
+}