Feature to make analytics call optional

This patch will add a config variale generateStackReport which
is by default set to true but if provided false, stack report
will not be generated

Fixes #74

Author: piyush-garg

README.md

@@ -179,6 +179,15 @@ This is the API where you provide configurations like runtime or something like
 
 If above block is configured in your pipeline then every time the spined pod will have a container named `node` which having the environments for nodejs8. By default pod will be spined with basic utilities like `oc`, `git` etc
 
+
+**Variables Configured in Pipeline**
+
+|         Name          |  Required  |  Default Value  |                    Description                      |
+|-----------------------|------------|-----------------|-----------------------------------------------------|
+|        runtime        |   false    |      none       |  runtime of the application ex java, node, go etc.  |
+|        version        |   false    |      none       |             version of the runtime using            |
+|  generateStackReport  |   false    |      true       |     whether to generate analytics Stack Report      |
+
 ### ci
 
 This is the block which will be executed for continuous integration flow. By default all branches starting with name `PR-` will go through this execution. You can override by providing a branch name in arguments
@@ -276,8 +285,8 @@ This API can read multiple resources separated by `---` from the yaml file.
 
 |      Name      |  Required  |         Default Value        |                             Description                                |
 |----------------|------------|------------------------------|------------------------------------------------------------------------|
-|      file      |   true     |  none           |    An relative path of resource yaml file.            |
-|      validate  |   false    |  true           |    A validation for resource yaml file.               |                       
+|      file      |   true     |             none             |                 An relative path of resource yaml file.                |
+|      validate  |   false    |             true             |                   A validation for resource yaml file.                 |
 
 ### build
 
@@ -332,8 +341,8 @@ or like
 |----------------|------------|----------------|------------------------------------------------------------------------------------------------|
 |   resources    |    true    |      null      |  OpenShift resources at least deploymentConfig, service, route, tag and imageStream resource.  |
 |      env       |    true    |      null      |                  environment where you want to deploy - `run` or `stage`                       |
-|    approval    |    false   |      null      |            if provided `manual` then user will be asked whether to deploy or not                 |
-|    timeout     |    false   |       30       |               time (in minutes) to wait for user input if approval is `manual`                  |
+|    approval    |    false   |      null      |            if provided `manual` then user will be asked whether to deploy or not               |
+|    timeout     |    false   |       30       |               time (in minutes) to wait for user input if approval is `manual`                 |
 
 The route generated after above step will be added as annotation in the pipeline.
 

src/io/openshift/Plugins.groovy

@@ -3,7 +3,8 @@ import io.openshift.plugins.*
 
 class Plugins implements Serializable {
     static def register() {
-      new analytics().register()
+      if (config.generateStackReport)
+        new analytics().register()
     }
 }
 

vars/config.groovy

@@ -13,6 +13,10 @@ def version() {
   return Globals.config.version
 }
 
+def generateStackReport() {
+  returns Globals.config.generateStackReport ?: true
+}
+
 def values() {
   return Globals.config
 }