Merge pull request #26 from GrantBirki/git-diff-improvements

Git diff improvements

README.md

@@ -20,7 +20,7 @@ Checkout the example below to see how you can use this Action in your workflow t
 
 ```yaml
       # Checkout the repo
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # needed to checkout all branches for this Action to work
 
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # Checkout the repo
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # needed to checkout all branches for this Action to work
 
@@ -185,6 +185,8 @@ Expand the section below to see an example of the JSON diff output
 | `file_output_only` | no | `"false"` | Only use file related outputs and do not print any diffs to console / loggers. **highly recommended** |
 | `search_path` | no | `.` | Optionally limit the scope of the diff operation to a specific sub-path. Useful for limiting scope of the action. |
 | `max_buffer_size` | no | `"10000000"` | Maximum output buffer size for call to git binary. Default is 10M, try increasing this value if you have issues with maxBuffer overflow. This value is technically a string but it gets converted to an integer. |
+| `git_options` | no | `"--no-color --full-index"` | Additional options to pass to the git binary |
+| `git_diff_file` | no | `"false"` | Optionally read the diff from a file instead of running `git diff` |
 
 ## Outputs 📤