Force LF as line-ending for operator modules (#2154)

* Force LF as line-ending for operator modules to prevent files marked as modified when generating on a different OS

* Add a .gitattributes

Author: PProfizi

.gitattributes

@@ -0,0 +1,63 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+*.jpg   binary
+*.png   binary
+*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain

src/ansys/dpf/core/operators/build.py

@@ -234,7 +234,7 @@ def build_operators():
 
         # Write to operator file
         operator_file = os.path.join(category_path, scripting_name + ".py")
-        with open(operator_file, "wb") as f:
+        with open(operator_file, "w", encoding='utf-8', newline="\u000A") as f:
             operator_str = scripting_name
             try:
                 operator_str = build_operator(
@@ -246,7 +246,7 @@ def build_operators():
                     specification_description,
                 )
                 exec(operator_str, globals())
-                f.write(operator_str.encode())
+                f.write(operator_str)
                 succeeded += 1
             except SyntaxError as e:
                 error_message = (
@@ -262,17 +262,17 @@ def build_operators():
 
     # Create __init__.py files
     print(f"Generating __init__.py files...")
-    with open(os.path.join(this_path, "__init__.py"), "wb") as main_init:
+    with open(os.path.join(this_path, "__init__.py"), "w", encoding="utf-8", newline="\u000A") as main_init:
         for category in sorted(categories):
             # Add category to main init file imports
-            main_init.write(f"from . import {category}\n".encode())
+            main_init.write(f"from . import {category}\n")
             # Create category init file
             category_operators = os.listdir(os.path.join(this_path, category.split(".")[0]))
-            with open(os.path.join(this_path, category, "__init__.py"), "wb") as category_init:
+            with open(os.path.join(this_path, category, "__init__.py"), "w", encoding="utf-8", newline="\u000A") as category_init:
                 for category_operator in sorted(category_operators):
                     operator_name = category_operator.split(".")[0]
                     category_init.write(
-                        f"from .{operator_name} import {operator_name}\n".encode()
+                        f"from .{operator_name} import {operator_name}\n"
                     )
 
     if succeeded == len(available_operators) - hidden: