Use build utilities in PATH.

.travis.yml

@@ -14,4 +14,4 @@ branches:
 
 before_install:
   - npm install
-  - npm install istanbul coveralls
+  - npm install -g istanbul coveralls

t/cover

@@ -2,16 +2,27 @@
 
 set -e
 
+if ! which istanbul > /dev/null; then
+    cat << EOF 1>&2
+
+Istanbul is required to run coverage. Install Istanbul:
+
+    npm install istanbul
+
+EOF
+    exit 1
+fi
+
 rm -rf coverage
 
 count=1;
 for file in $(find . ! -path '*/node_modules/*' -name \*.t.js); do
-  node_modules/.bin/istanbul cover -x 't/**' -x '*/t/**' $file > /dev/null 2>&1
+  istanbul cover -x 't/**' -x '*/t/**' $file > /dev/null 2>&1
   mv coverage/coverage.json coverage/coverage$count.json
   count=$(expr $count + 1)
 done
 
-node_modules/.bin/istanbul report --root coverage --dir coverage > /dev/null
+istanbul report --root coverage --dir coverage > /dev/null
 
 sed -i -e s,'^SF:'`pwd`/,SF:, coverage/lcov.info
 

t/test

@@ -4,17 +4,19 @@ set -e
 
 echo ""
 
-(proof run t/*.t.js | tee .proof.out | proof progress) || (proof errors < .proof.out) || exit 1
+(proof run t/*.t.js | tee .proof.out | proof progress) \
+    || (proof errors < .proof.out) \
+    || exit 1
 
 if [ "$TRAVIS" = "true" ]; then
   echo ""
   echo "running with coverage"
   t/cover
-  node_modules/.bin/istanbul report --format text
+  istanbul report --format text
   echo ""
 
   echo "submitting to coveralls.io"
-  (cat coverage/lcov.info | node_modules/.bin/coveralls) > /dev/null 2>&1
+  (cat coverage/lcov.info | coveralls) > /dev/null 2>&1
 fi
 
 echo ""