From f821d0a974a3f48cd3ca60feea2e2263a0626407 Mon Sep 17 00:00:00 2001
From: Kenneth Hoste <kenneth.hoste@ugent.be>
Date: Mon, 18 Oct 2021 10:04:32 +0200
Subject: [PATCH 1/2] check whether location for temporary directories for
 build container has support for extended attributes

---
 start_build_node_env.sh | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/start_build_node_env.sh b/start_build_node_env.sh
index 930e838b91..0848a5b391 100755
--- a/start_build_node_env.sh
+++ b/start_build_node_env.sh
@@ -5,6 +5,21 @@ if [ $# -ne 1 ]; then
     exit 1
 fi
 export EESSI_TMPDIR=$1
+
+# make sure that specified location has support for extended attributes,
+# since that's required by CernVM-FS
+command -v attr &> /dev/null
+if [ $? -eq 0 ]; then
+    testfile=$(mktemp -p $EESSI_TMPDIR)
+    attr -s test -V test $testfile > /dev/null
+    if [ $? -ne 0 ]; then
+        echo "ERROR: $EESSI_TMPDIR does not support extended attributes!" >&2
+       exit 2
+    else
+        rm $testfile
+    fi
+fi
+
 echo "Using $EESSI_TMPDIR as parent for temporary directories..."
 
 # create temporary directories

From 90b73a0fcf068818896b89d3eac9c82e5db821d4 Mon Sep 17 00:00:00 2001
From: Kenneth Hoste <kenneth.hoste@ugent.be>
Date: Wed, 20 Oct 2021 08:43:01 +0200
Subject: [PATCH 2/2] print warning when 'attr' command is not available

---
 start_build_node_env.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/start_build_node_env.sh b/start_build_node_env.sh
index 0848a5b391..79028f86b5 100755
--- a/start_build_node_env.sh
+++ b/start_build_node_env.sh
@@ -18,6 +18,8 @@ if [ $? -eq 0 ]; then
     else
         rm $testfile
     fi
+else
+    echo "WARNING: 'attr' command not available, so can't check support for extended attributes..." >&2
 fi
 
 echo "Using $EESSI_TMPDIR as parent for temporary directories..."