adds constraint check (falsy)

.circleci/config.yml

@@ -158,6 +158,19 @@ jobs:
             export LEO=/home/circleci/project/project/bin/leo
             ./project/.circleci/leo-add-remove.sh
 
+  leo-check-constraints:
+    docker:
+      - image: cimg/rust:1.50.0
+    resource_class: xlarge
+    steps:
+      - attach_workspace:
+          at: /home/circleci/project/
+      - run:
+          name: leo check constraints for Pedersen Hash
+          command: |
+            export LEO=/home/circleci/project/project/bin/leo
+            ./project/.circleci/leo-check-constraints.sh
+
   leo-login-logout:
     docker:
       - image: cimg/rust:1.50.0

.circleci/leo-check-constraints.sh

@@ -0,0 +1,17 @@
+# leo new hello-world
+
+cd examples/pedersen-hash
+
+PEDERSEH_HASH_CONSTRAINTS=1539
+
+# 1. build 
+# 2. find lines with constraint number
+# 3. find lines with $PEDERSEH_HASH_CONSTRAINTS
+# 4. count lines
+# 4.Er if result is 0 -> constraint number changed
+# 4.Ok if result is 1 -> all good
+
+[[ $($LEO build | grep "Number of constraints" | grep $PEDERSEH_HASH_CONSTRAINTS | wc -l) -eq 0 ]] || { 
+    echo >&2 "Number of constraints for Pedersen Hash is not $PEDERSEN_HASH_CONSTRAINTS"; 
+    exit 1; 
+}