Add files and configuration for filters

Changes to be committed:
    modified:   .gitattributes
    modified:   bitbucket-pipelines.yml
    new file:   filter/cleanCode.sed
    new file:   filter/gitconfig
    new file:   filter/ignoreTargetNetId.sed

.gitattributes

@@ -11,8 +11,23 @@
 
 # Tc files must be CRLF
 *.plcproj      text eol=crlf
-*.Tc*          text eol=crlf
-*.tsproj       text eol=crlf
+*.Tc*          text eol=crlf filter=cleanCode
+*.tsproj       text eol=crlf filter=ignoreNetId
 *.txt          text eol=crlf
 *.xml          text eol=crlf
 *.xti          text eol=crlf
+
+
+# Configure the following in TwinCAT:
+# TOOLS -> Options -> TwinCAT -> PLC Environment -> Write Options -> Separate LineIDS : True
+# To activate the filter, run
+#git config filter.ignoreNetId.clean 'sed -b -f filter/ignoreTargetNetId.sed'
+#git config filter.cleanCode.clean   'sed -b -f filter/cleanCode.sed'
+
+# the check if the filter is there by running
+# cat ../../../../.git/modules/solution/tc_project_app/tc_pils/tc_pils_generic/config
+
+#[filter "ignoreNetId"]
+#        clean = sed -f filter/ignoreTargetNetId.sed
+#[filter "cleanCode"]
+#        clean = sed -f filter/cleanCode.sed

bitbucket-pipelines.yml

@@ -1,13 +1,13 @@
-image: python:3.7.3
-options:
-  max-time: 1
-pipelines:
-  default:
-     - step:
-          script:
-            - git submodule update --init
-            - python twincat_version_manager.py
-            - python check_fix_white_space.py
-            - ./check_no_lineids.sh
-            - ./check_code_before_sq_brackets.sh
-
+image: python:3.7.3
+options:
+  max-time: 1
+pipelines:
+  default:
+     - step:
+          script:
+            - git submodule update --init
+            - python twincat_version_manager.py
+            - python check_fix_white_space.py
+            - ./check_no_lineids.sh
+            - ./check_code_before_sq_brackets.sh
+

filter/cleanCode.sed

@@ -0,0 +1,10 @@
+# remove LineIds
+/<LineId/d
+/<\/LineId/d
+# Add a line after ]]
+/.\]\]>/s/]]>/\r\n]]>/g
+# convert tab to space
+/\t/s/\t/    /g
+# remove trailing space
+s/[[:blank:]]*$//
+s/[[:blank:]]*\r$/\r/

filter/gitconfig

@@ -0,0 +1,5 @@
+[filter "ignoreNetId"]
+	clean = sed -b -f filter/ignoreTargetNetId.sed
+[filter "cleanCode"]
+	clean = sed -b -f filter/cleanCode.sed
+

filter/ignoreTargetNetId.sed

@@ -0,0 +1 @@
+s/}\" TargetNetId=\"[0-9.]+\"/}\" /g