Automatic R devel version fix (#89)

* rocker PATCHED to devel

* Use date and versions from dcf file to decide when devel should be patched instead

* Devel or patched pre-release based on R version from config.yaml

.github/workflows/full-rstudio-build.yml

@@ -102,19 +102,15 @@ jobs:
         git clone --depth 1 https://github.com/rocker-org/rocker-versioned2
         sed -i 's#rocker/r-ver:${{ steps.defs.outputs.rver }}#${{ steps.defs.outputs.rockerintermediateprefix }}-r-ver:${{ steps.defs.outputs.rver }}-${{ matrix.arch }}#g' rocker-versioned2/dockerfiles/rstudio_${{ steps.defs.outputs.rver }}.Dockerfile
         sed -i 's#install_quarto.sh#install_quarto.sh || true#g' rocker-versioned2/dockerfiles/rstudio_${{ steps.defs.outputs.rver }}.Dockerfile
-
-        BIOC_MINOR=$(echo "${{ steps.defs.outputs.biocver }}" | awk -F'.' '{print $NF}')
         echo "Bioconductor Version: ${{ steps.defs.outputs.biocver }}"
-        if [ "${{ steps.defs.outputs.rver }}" = "devel" ];
-        then
-          if [ $((BIOC_MINOR%2)) -eq 0 ];
-          then
-              echo "Using latest release R since Bioc devel version is even";
-              sed -i 's#R_VERSION=${{ steps.defs.outputs.rver }}#R_VERSION=latest#g' rocker-versioned2/dockerfiles/r-ver_${{ steps.defs.outputs.rver }}.Dockerfile
-          else
-              echo "Using latest pre-release R since Bioc devel version is even";
-              sed -i 's#R_VERSION=${{ steps.defs.outputs.rver }}#R_VERSION=patched#g' rocker-versioned2/dockerfiles/r-ver_${{ steps.defs.outputs.rver }}.Dockerfile
-          fi
+        if [ "${{ steps.defs.outputs.rver }}" = "devel" ]; then
+            echo "Using devel pre-release R since Bioc devel version is odd";
+            DEVEL_R_VER=$(curl https://bioconductor.org/config.yaml | grep '"${{ steps.defs.outputs.rver }}":' | awk '{print $2}' | sed 's/"//g')
+            REL_VER=$(curl https://cran.r-project.org/src/base/VERSION-INFO.dcf | grep "$DEVEL_R_VER" | awk -F':' '{print $1}')
+            # if the matching version is under release rather than devel, use patched pre-release rather than devel pre-release
+            if [ "$REL_VER" == "Release" ]; then 
+                sed -i 's#R_VERSION=${{ steps.defs.outputs.rver }}#R_VERSION=patched#g' rocker-versioned2/dockerfiles/r-ver_${{ steps.defs.outputs.rver }}.Dockerfile
+            fi
         fi