Merge pull request #285 from drdavella/improve-test-script

More error checking and output in update script

scripts/update_cubeviz_test_env

@@ -1,9 +1,23 @@
 #! /bin/sh
 
+set -eu
+
 conda_env=`conda env list | grep '*' | cut -d\  -f1`
+min_conda_version="4.4"
 
-if [ "$conda_env" == "test-cubeviz-conda" ]; then
-    conda update --update-deps -c glueviz/label/dev -c glueviz -c http://ssb.stsci.edu/astroconda-dev cubeviz --yes
-else
+if [ "$conda_env" != "test-cubeviz-conda" ]; then
     echo "Must be in the test-cubeviz-conda conda environment"
+    exit 1
+fi
+
+conda_version=$(conda --version | cut -d\  -f2 | cut -d. -f1,2)
+if [[ "$conda_version" < "$min_conda_version" ]]; then
+    echo "WARNING: your conda version is out of date ($(conda --version))." \
+    "This may cause issues with installing the latest version of cubeviz" \
+    "and its dependencies."
 fi
+
+conda update --update-deps -c glueviz/label/dev -c glueviz -c http://ssb.stsci.edu/astroconda-dev cubeviz --yes
+
+echo "CubeViz test environment has been updated to the following:"
+conda list "cubeviz|glue-core|specviz|specutils|spectral-cube"