Make checkout fetch-depth configurable.

README.md

@@ -15,6 +15,7 @@ The `gha-setup-workspace` action performs the following tasks:
 
 - `job_type` (required): The type of job action is executing in. Must be either `build` or `deploy`.
 - `artifact_name_override` (optional): Override the name of the artifact to use. Default is an empty string which determines the artifact name automatically. 
+- `checkout_fetch_depth` (optional): The number of commits to fetch. Change to `0` if performing a merge.
 
 ## Outputs
 

action.yaml

@@ -6,6 +6,10 @@ inputs:
     description: Override name of artifact to use
     required: false
     default: ''
+  checkout_fetch_depth:
+    description: Depth to fetch repository
+    required: false
+    default: 1
   job_type:
     description: Type of job action is executing in
     required: true
@@ -33,6 +37,8 @@ runs:
       id: checkout-source
       if: inputs.job_type == 'build'
       uses: actions/checkout@v4
+      with:
+        fetch-depth: ${{ inputs.checkout_fetch_depth }}
 
     # This is helpful
     - name: Get artifact name