Make repo compatible with test files residing in external repos

.github/workflows/demo.yml

@@ -30,7 +30,7 @@ jobs:
     - name: Demo output on openconfig/public
       continue-on-error: true
       run: |
-          OCDIR=~/tmp/public pytests/pattern_test.sh
+          OCDIR=~/tmp/public find "$OCDIR/regexp-tests" -name "*.yang" -print0 | xargs -0 pytests/pattern_test.sh
 
   posix-pattern:
     name: posix-pattern statement
@@ -60,4 +60,4 @@ jobs:
     - name: Demo output on openconfig/public
       continue-on-error: true
       run: |
-          go run gotests/main.go -model-root ~/tmp/public testdata/regexp-test.yang
+          find "$OCDIR/regexp-tests" -name "*.yang" -print0 | xargs -0 go run gotests/main.go -model-root ~/tmp/public

pytests/pattern_test.sh

@@ -6,11 +6,16 @@ if [ -z $OCDIR ]; then
   echo "\$OCDIR not given, using default: $OCDIR"
 fi
 
+if [ $# -eq 0 ]; then
+  echo "No regex test files supplied as an argument."
+  exit 1
+fi
+
 TEST_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 REPO_DIR="$TEST_DIR/.."
 
 tmpstderr=$(mktemp)
-pyang -p $OCDIR -p "$REPO_DIR/testdata" --msg-template="| {line} | {msg} |" --plugindir "$REPO_DIR/pytests/plugins" --check-patterns "$REPO_DIR/testdata/regexp-test.yang" 2> $tmpstderr
+pyang -p $OCDIR --msg-template="| {line} | {msg} |" --plugindir "$REPO_DIR/pytests/plugins" --check-patterns $@ 2> $tmpstderr
 retcode=$?
 if [ $retcode -ne 0 ]; then
   >&2 echo "| Line # | typedef | error |"