Add 'subdirectory' optional input.

setup-renv/action.yaml

@@ -4,13 +4,16 @@ author: 'Jim Hester'
 inputs:
   profile:
     description: 'The renv profile that should be activated. Forwarded to `renv::activate()`. Must be an R expression. Note that it often needs to be quoted in YAML, see the README for details.'
+    default: 'NULL'
   cache-version:
     description: 'The version of the cache, change this from the default (1) to start over with a fresh cache'
-    required: true
     default: 1
   bypass-cache:
     description: 'Whether attempts to cache should be completely skipped (for non GitHub testing). Set to `true` to skip.'
     default: "false"
+  subdirectory:
+    description: 'To restore a renv.lock that is not in the repository root, set this to the folder containing the renv.lock to restore from.'
+    default: '.'
 runs:
   using: "composite"
   steps:
@@ -24,6 +27,7 @@ runs:
           if (!requireNamespace("renv", quietly=TRUE)) install.packages("renv")
           renv::activate(profile = ${{ inputs.profile }})
         shell: Rscript {0}
+        working-directory: ${{ inputs.subdirectory }}
 
       - name: Get R and OS version
         id: get-version
@@ -37,12 +41,13 @@ runs:
         uses: actions/cache@v3
         with:
           path: ${{ env.RENV_PATHS_ROOT }}
-          key: ${{ steps.get-version.outputs.os-version }}-${{ steps.get-version.outputs.r-version }}-${{inputs.cache-version }}-${{ hashFiles('renv.lock') }}
-          restore-keys: ${{ steps.get-version.outputs.os-version }}-${{ steps.get-version.outputs.r-version }}-${{inputs.cache-version }}-
+          key: ${{ steps.get-version.outputs.os-version }}-${{ steps.get-version.outputs.r-version }}-${{ inputs.cache-version }}-${{ hashFiles('${{ inputs.subdirectory }}/renv.lock') }}
+          restore-keys: ${{ steps.get-version.outputs.os-version }}-${{ steps.get-version.outputs.r-version }}-${{ inputs.cache-version }}-
 
       - name: Install renv dependencies
         run: renv::restore()
         shell: Rscript {0}
+        working-directory: ${{ inputs.subdirectory }}
 
       - name: Don't use tar 1.30 from Rtools35 to store the cache
         shell: bash