Merge pull request #1317 from manics/rstudio-logging

rstudio: log-level info to stderr

repo2docker/buildpacks/r.py

@@ -339,6 +339,15 @@ class RBuildPack(PythonBuildPack):
                 echo "r-cran-repos=${{EXPANDED_CRAN_MIRROR_URL}}" > /etc/rstudio/rsession.conf
                 """,
             ),
+            (
+                "root",
+                # Configure log-level and send to stderr
+                # Set log-level=debug to investigate problems
+                # https://docs.posit.co/ide/server-pro/server_management/logging.html
+                rf"""
+                printf '[*]\nlog-level=info\nlogger-type=stderr\n' > /etc/rstudio/logging.conf
+                """,
+            ),
             (
                 "${NB_USER}",
                 # Install a pinned version of devtools, IRKernel and shiny