fix: allow custom-ref IDENTIFIER (#21)

* fix: allow custom-ref IDENTIFIER

* docs: update readme with custom-ref

Author: LukasMod

README.md

@@ -66,6 +66,7 @@ jobs:
 | `keystore-path`           | where the keystore should be placed      | No       | `release.keystore` |
 | `rock-build-extra-params` | Extra parameters for rock build:android  | No       | -                  |
 | `comment-bot`             | Whether to comment PR with build link    | No       | `true`             |
+| `custom-ref`              | Custom app reference for artifact naming | No       | -                  |
 
 ## Outputs
 

action.yml

@@ -64,6 +64,9 @@ inputs:
     description: 'Whether to send a comment under PR with the link to the generated build'
     required: false
     default: true
+  custom-ref:
+    description: 'Custom app reference for artifact naming'
+    required: false
 
 outputs:
   artifact-url:
@@ -282,6 +285,8 @@ runs:
       run: |
         if [ "${{ github.event_name }}" = "pull_request" ]; then
           IDENTIFIER="${{ github.event.pull_request.number }}"
+        elif [ -n "${{ inputs.custom-ref }}" ]; then
+          IDENTIFIER="${{ inputs.custom-ref }}"
         else
           IDENTIFIER=$(echo "$GITHUB_SHA" | cut -c1-7)
         fi