Implement ruby syntax checks

.travis.yml

@@ -8,7 +8,8 @@ before_install:
 script:
 - python travis/pr-check-base.py
 - python travis/lint.py
-- python travis/luac.py
+- python travis/script-syntax.py --ext=lua --cmd="luac$LUA_VERSION -p"
+- python travis/script-syntax.py --ext=rb --cmd="ruby -c"
 - ./fixTexts.sh --force
 notifications:
     email: false

travis/luac.py

@@ -1,24 +0,0 @@
-import os, sys, subprocess
-
-def main():
-    root_path = os.path.abspath(sys.argv[1] if len(sys.argv) > 1 else '.')
-    if not os.path.exists(root_path):
-        print('Nonexistent path: %s' % root_path)
-        sys.exit(2)
-    err = False
-    for cur, dirnames, filenames in os.walk(root_path):
-        parts = cur.replace('\\', '/').split('/')
-        if '.git' in parts or 'depends' in parts:
-            continue
-        for filename in filenames:
-            if not filename.endswith('.lua'):
-                continue
-            full_path = os.path.join(cur, filename)
-            try:
-                assert not subprocess.call(['luac' + os.environ.get('LUA_VERSION', ''), '-p', full_path])
-            except (subprocess.CalledProcessError, AssertionError):
-                err = True
-    sys.exit(int(err))
-
-if __name__ == '__main__':
-    main()

travis/script-syntax.py

@@ -0,0 +1,32 @@
+import argparse, os, sys, subprocess
+
+parser = argparse.ArgumentParser()
+parser.add_argument('--path', default='.', help='Root directory')
+parser.add_argument('--ext', help='Script extension', required=True)
+parser.add_argument('--cmd', help='Command', required=True)
+args = parser.parse_args()
+
+def main():
+    root_path = os.path.abspath(args.path)
+    cmd = args.cmd.split(' ')
+    ext = '.' + args.ext
+    if not os.path.exists(root_path):
+        print('Nonexistent path: %s' % root_path)
+        sys.exit(2)
+    err = False
+    for cur, dirnames, filenames in os.walk(root_path):
+        parts = cur.replace('\\', '/').split('/')
+        if '.git' in parts or 'depends' in parts:
+            continue
+        for filename in filenames:
+            if not filename.endswith(ext):
+                continue
+            full_path = os.path.join(cur, filename)
+            try:
+                subprocess.check_output(cmd + [full_path])
+            except subprocess.CalledProcessError:
+                err = True
+    sys.exit(int(err))
+
+if __name__ == '__main__':
+    main()