Add script to check for tabs in IDFs

.decent_ci-Linux.yaml

@@ -24,6 +24,7 @@ compilers:
       - ./scripts/dev/verify_file_encodings.py
       - ./scripts/dev/validate_idd_units.py
       - ./scripts/dev/find_byref_bool_override.py
+      - ./scripts/dev/check_for_tabs_in_idfs.py
 
   - name: "gcc"
     version: "7.4"

scripts/dev/check_for_tabs_in_idfs.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+
+import io
+import json
+import os
+
+
+def usage():
+    print("""This script verifies that the idf files in the testfiles directory don't have tab characters.""")
+
+
+current_script_dir = os.path.dirname(os.path.realpath(__file__))
+test_files_dir = os.path.join(current_script_dir, '..', '..', 'testfiles')
+
+for root, dirs, files in os.walk(test_files_dir):
+    for sfile in files:
+        if sfile.endswith('.idf') or sfile.endswith('.imf'):
+            if root == test_files_dir:
+                relative_path = sfile
+            else:
+                folder = os.path.basename(os.path.normpath(root))
+                relative_path = os.path.join(folder, sfile)
+            abs_path = os.path.join(test_files_dir, relative_path)
+            with io.open(abs_path, 'r', encoding='utf-8', errors='strict') as fd:
+                for i, line in enumerate(fd):
+                    if '\t' in line:
+                        print(json.dumps({
+                            'tool': 'check_for_tabs_in_idfs',
+                            'filename': os.path.join('testfiles', relative_path),
+                            'file': os.path.join('testfiles', relative_path),
+                            'line': i,
+                            'messagetype': 'error',
+                            'message': 'Tab character found in IDF, use spaces for indentation'
+                        }))

testfiles/BasicsFiles/Exercise1A.idf

@@ -13,7 +13,7 @@
 ! Environment:  Chicago, IL, USA, Summer and Winter design days
 !
 !
-
+	c
   Version,9.2;
 
 !-   ===========  ALL OBJECTS IN CLASS: BUILDING ===========