add auto_merge input parameter

Author: chrnorm

README.md

@@ -4,12 +4,13 @@ A GitHub action to create [Deployments](https://developer.github.com/v3/repos/de
 
 ## Action inputs
 
-| name             | description                                                                                                                                                        |
-| ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
-| `initial_status` | (Optional) Initial status for the deployment. Must be one of the [accepted strings](https://developer.github.com/v3/repos/deployments/#create-a-deployment-status) |
-| `token`          | GitHub token                                                                                                                                                       |
-| `target_url`     | (Optional) The target URL. This should be the URL of the app once deployed                                                                                         |
-| `description`    | (Optional) A description to give the environment                                                                                                                   |
+| name             | description                                                                                                                                                                                                                                                                                                                                                                                                   |
+| ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `initial_status` | (Optional) Initial status for the deployment. Must be one of the [accepted strings](https://developer.github.com/v3/repos/deployments/#create-a-deployment-status)                                                                                                                                                                                                                                            |
+| `token`          | GitHub token                                                                                                                                                                                                                                                                                                                                                                                                  |
+| `target_url`     | (Optional) The target URL. This should be the URL of the app once deployed                                                                                                                                                                                                                                                                                                                                    |
+| `description`    | (Optional) A description to give the environment                                                                                                                                                                                                                                                                                                                                                              |
+| `auto_merge`     | (Optional - default is `false`) Whether to attempt to auto-merge the default branch into the branch that the action is running on if set to `"true"`. More details in the [GitHub deployments API](https://developer.github.com/v3/repos/deployments/#parameters-1). Warning - setting this to `"true"` has caused this action to [fail in some cases](https://github.com/chrnorm/deployment-action/issues/1) |
 
 ## Action outputs
 

package-lock.json

@@ -24,6 +24,11 @@ async function run() {
       (core.getInput("initial_status", {
         required: false
       }) as DeploymentState) || "pending";
+    const autoMergeStringInput = core.getInput("auto_merge", {
+      required: false
+    });
+
+    const auto_merge: boolean = autoMergeStringInput === "true";
 
     const client = new github.GitHub(token);
 
@@ -34,6 +39,7 @@ async function run() {
       required_contexts: [],
       environment,
       transient_environment: true,
+      auto_merge,
       description
     });