Script to check for JS.

tools/checkDocsCurrent.sh

@@ -2,6 +2,11 @@
 
 # Generate package docs in the working directory
 Rscript -e "devtools::document(roclets=c('rd', 'collate', 'namespace'))"
+if [ $? -ne 0 ]
+then
+  echo "Error generating Roxygen docs."
+  exit 1
+fi
 
 # This command will return a zero exit code if there are uncommitted changes
 test -n "$(git status --porcelain)"

tools/checkJSCurrent.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Run JS build process
+(cd "$(dirname "$0")" && yarn build)
+if [ $? -ne 0 ]
+then
+  echo "Error generating JavaScript assets with yarn."
+  exit 1
+fi
+
+# This command will return a zero exit code if there are uncommitted changes
+test -n "$(git status --porcelain)"
+if [ $? -eq 0 ]
+then
+  git status --porcelain
+  echo "Please rebuild the JavaScript and commit the changes."
+  echo "The above files changed when we built the JavaScript assets. This most often occurs when a user makes changes to the JavaScript sources but doesn't rebuild and commit them."
+  exit 1
+else
+  echo "No difference detected; JavaScript build is current."
+fi