Merge pull request #1115 from minrk/set-user-root

set USER root after each directive block

repo2docker/buildpacks/base.py

@@ -100,6 +100,8 @@ COPY --chown={{ user }}:{{ user }} {{ src }} {{ dst }}
 {% for sd in build_script_directives -%}
 {{ sd }}
 {% endfor %}
+# ensure root user after build scripts
+USER root
 
 # Allow target path repo is cloned to be configurable
 ARG REPO_DIR=${HOME}
@@ -138,6 +140,8 @@ COPY --chown={{ user }}:{{ user }} src/{{ src }} ${REPO_DIR}/{{ dst }}
 {% for sd in preassemble_script_directives -%}
 {{ sd }}
 {% endfor %}
+# ensure root user after preassemble scripts
+USER root
 
 # Copy stuff.
 COPY --chown={{ user }}:{{ user }} src/ ${REPO_DIR}

tests/r/apt/apt.txt

@@ -0,0 +1 @@
+libsodium-dev

tests/r/apt/install.R

@@ -0,0 +1 @@
+install.packages("viridisLite")

tests/r/apt/runtime.txt

@@ -0,0 +1 @@
+r-4.1-2021-10-22

tests/r/apt/verify

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -euo pipefail
+apt list
+apt list | grep libsodium-dev
+# make sure we got R
+which R