Arguments parsing implementation

.github/workflows/example.yml

@@ -40,4 +40,20 @@ jobs:
         env:
           GITHUB_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
       - run: 'echo Found it!'
-        if: steps.check.outputs.triggered == 'true'
+        if: steps.check.outputs.triggered == 'true'
+
+  arguments-rocket:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: khan/pull-request-comment-trigger@master
+        id: check
+        with:
+          trigger: '#deploy on ** environment'
+          reaction: rocket
+          allow_arguments: true
+        env:
+          GITHUB_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
+      - run: |
+          echo 'Found it!'
+          echo 'Deploy on ${{ fromJson(steps.check.outputs.arguments)[0] }}'
+        if: steps.check.outputs.triggered == 'true'

Readme.md

@@ -33,16 +33,35 @@ jobs:
         if: steps.check.outputs.triggered == 'true'
 ```
 
+You can either pass arguments in your comment, e.g. `@deploy dev`:
+
+```
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: khan/[email protected]
+        id: check
+        with:
+          trigger: '@deploy **'
+          reaction: rocket
+          allow_arguments: true
+        env:
+          GITHUB_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
+      - run: 'echo Found it! Deploy on ${{ fromJson(steps.check.outputs.arguments)[0] }}'
+        if: steps.check.outputs.triggered == 'true'
+```
+
 Reaction must be one of the reactions here: https://developer.github.com/v3/reactions/#reaction-types
 And if you specify a reaction, you have to provide the `GITHUB_TOKEN` env vbl.
 
 ## Inputs
 
 | Input | Required? | Description |
 | ----- | --------- | ----------- |
-| trigger | Yes | The string to look for in pull-request descriptions and comments. For example "#build/android". |
-| prefix_only | No (default 'false') | If 'true', the trigger must match the start of the comment. |
+| trigger | Yes | The string to look for in pull-request descriptions and comments. The trigger should be placed at the beginning. For example "#build/android". |
 | reaction | No (default '') | If set, the specified emoji "reaction" is put on the comment to indicate that the trigger was detected. For example, "rocket". |
+| allow_arguments | No (default 'false') | If 'true', script looks for `**` markers that are considered as comment arguments. |
 
 
 ## Outputs
@@ -51,3 +70,4 @@ And if you specify a reaction, you have to provide the `GITHUB_TOKEN` env vbl.
 | ------ | ----------- |
 | triggered | 'true' or 'false' depending on if the trigger phrase was found. |
 | comment_body | The comment body. |
+| arguments | The comment arguments. |

action.yml

@@ -12,6 +12,10 @@ inputs:
     description: If 'true', the trigger must match the start of the comment.
     required: false
     default: "false"
+  allow_arguments:
+    description: If 'true', the trigger can have arguments. Can be passed via "**".
+    required: false
+    default: "false"
 outputs:
   triggered:
     description: the string 'true' if the trigger was found, otherwise the string 'false'