inputs: Add ref to be able to select another branch when needed (#11)

Author: mwestphal

README.md

@@ -17,6 +17,7 @@ Is has the following inputs:
 
  - `type`: should be `producer` or `consumer`, default to `producer`
  - `repository`: the git repository to produce LFS data from, default: ${{ github.repository }}
+ - `ref`: the branch, tag or SHA to checkout to look for LFS data in, default: `''`
  - `lfs_sha`: The git sha to recover LFS data from, optional
  - `cache_postfix`: An postfix added to the cache name, to support multiple caches, default to `cache`
  - `target_directory`: A target directory to copy LFS data to

action.yml

@@ -11,6 +11,10 @@ inputs:
     description: 'Repository to recover LFS data from'
     required: false
     default: ${{ github.repository }}
+  ref:
+    description: 'branch, tag or SHA to checkout and look for LFS data in'
+    required: false
+    default: ''
   lfs_sha:
     description: 'LFS sha to recover. If not set, target directory will be used to recover it.'
     required: false
@@ -43,6 +47,7 @@ runs:
       if: inputs.lfs_sha == ''
       uses: actions/checkout@v4
       with:
+        ref: ${{ inputs.ref }}
         repository: ${{ inputs.repository }}
         path: 'lfs_data_cache/lfs_source'
         fetch-depth: 0