Unset CURL_CA_BUNDLE if points to unreadable file

containers/jug/eic-env.sh

@@ -36,6 +36,14 @@ export PS1=${ps1_preamble}'\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\
 export LS_COLORS='rs=0:di=01;34:ln=01;36:mh=00:pi=40;33'
 unset ps1_preamble
 
+## unset CURL_CA_BUNDLE if not accessible inside container
+## this addresses certain HPC systems where CURL_CA_BUNDLE
+## is customized to point to paths that do not exist inside
+## this container
+if [ ! -r ${CURL_CA_BUNDLE:-/} ]; then
+  unset CURL_CA_BUNDLE
+fi
+
 ## redefine ls and less as functions, as this is something we
 ## can import into our plain bash --norc --noprofile session
 ## (aliases cannot be transferred to a child shell)