pre-commit hook for Beckhoff TwinCAT projects (.tmc/.tpy files)

.git_hooks_pre-commit.sh

#!/bin/bash
# Save this file as .git/hooks/pre-commit and make it executable (chmod +x)
#
# Quick install:
# curl -L https://git.io/fjd80 > .git/hooks/pre-commit && chmod +x .git/hooks/pre-commit
#
# Largely based on https://github.com/michalrus/git-hooks-code-autoformat/blob/master/pre-commit
# and https://medium.com/@harshitbangar/automatic-code-formatting-with-git-66c3c5c26798

echo "** pre-commit hook **"
echo "* Formatting the berkhoff!"

FORMAT_EXTENSIONS=("\.tmc$" "\.tpy$")
REPO_ROOT_DIR="$(git rev-parse --show-toplevel)"
EXT_GREP_ARGS=$(echo ${FORMAT_EXTENSIONS[@]}|tr " " "|")

set -e
# for debugging: set -x

if [ ! $(command -v xmllint) ]; then
    echo "ERROR: xmllint not found!";
    exit 1;
fi

git diff --name-only --cached | {
    while IFS= read -r fn ; do
        abs_fn="${REPO_ROOT_DIR}/${fn}"

        # Skip deleted files
        [ -f "$abs_fn" ] || continue

        # Check the extension
        (echo "$abs_fn" | grep -Eqi -e "$EXT_GREP_ARGS") || continue

        temp_file="$(mktemp)"
        lint_result=$(xmllint --format "${abs_fn}" >"$temp_file" )

        if [ $lint_result -ne 0 ]; then
            echo 'fatal: `xmllint --format` failed for:' "$abs_fn" >&2
            rm "$temp_file"
            exit 1
        fi

        cat "$temp_file" > "$abs_fn"
        rm "$temp_file"
        git add "$abs_fn"

    done
}

example_diff.diff

diff --git a/TC_project/TwinCAT Project1/TwinCAT Project1/Untitled1/Untitled1.tmc b/TC_project/TwinCAT Project1/TwinCAT Project1/Untitled1/Untitled1.tmc
index 73f0ba1..9a3f716 100644
--- a/TC_project/TwinCAT Project1/TwinCAT Project1/Untitled1/Untitled1.tmc
+++ b/TC_project/TwinCAT Project1/TwinCAT Project1/Untitled1/Untitled1.tmc
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<TcModuleClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.beckhoff.com/schemas/2009/05/TcModuleClass" Hash="{79967873-A014-B1E6-294C-B259B6722CB3}" GeneratedBy="TwinCAT XAE Plc">
+<TcModuleClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.beckhoff.com/schemas/2009/05/TcModuleClass" Hash="{8312B438-DEA2-8292-CD86-F443AB269ECB}" GeneratedBy="TwinCAT XAE Plc">
   <DataTypes>
     <DataType>
       <Name GUID="{6F5942ED-BFA1-497D-8225-23C6DAAD0A09}" TcBaseType="true">ST_LibVersion</Name>
@@ -1157,6 +1157,21 @@
             </Properties>
             <BitOffs>4516064</BitOffs>
           </Symbol>
+          <Symbol>
+            <Name>MAIN.nUnsignedInt32</Name>
+            <BitSize>32</BitSize>
+            <BaseType>UDINT</BaseType>
+            <Properties>
+              <Property>
+                <Name>pytmc</Name>
+                <Value>
+               pv: ADS_TST:nUnsignedInt32
+               io: io
+       </Value>
+              </Property>
+            </Properties>
+            <BitOffs>4519872</BitOffs>
+          </Symbol>
           <Symbol>
             <Name>MAIN.diTestCycle</Name>
             <BitSize>32</BitSize>
@@ -1170,7 +1185,7 @@
        </Value>
               </Property>
             </Properties>
-            <BitOffs>4519872</BitOffs>
+            <BitOffs>4519904</BitOffs>
           </Symbol>
         </DataArea>
       </DataAreas>
@@ -1183,7 +1198,7 @@
         </Property>
         <Property>
           <Name>ChangeDate</Name>
-          <Value>2019-08-15T10:04:35</Value>
+          <Value>2019-08-15T10:06:46</Value>
         </Property>
         <Property>
           <Name>GeneratedCodeSize</Name>
diff --git a/TC_project/TwinCAT Project1/TwinCAT Project1/Untitled1/Untitled1.tpy b/TC_project/TwinCAT Project1/TwinCAT Project1/Untitled1/Untitled1.tpy
index 9f5df81..5ff8c9b 100644
--- a/TC_project/TwinCAT Project1/TwinCAT Project1/Untitled1/Untitled1.tpy
+++ b/TC_project/TwinCAT Project1/TwinCAT Project1/Untitled1/Untitled1.tpy
@@ -921,11 +921,18 @@
       <IOffset>564508</IOffset>
       <BitSize>16</BitSize>
     </Symbol>
+    <Symbol>
+      <Name>MAIN.nUnsignedInt32</Name>
+      <Type>UDINT</Type>
+      <IGroup>16448</IGroup>
+      <IOffset>564984</IOffset>
+      <BitSize>32</BitSize>
+    </Symbol>
     <Symbol>
       <Name>MAIN.diTestCycle</Name>
       <Type>DINT</Type>
       <IGroup>16448</IGroup>
-      <IOffset>564984</IOffset>
+      <IOffset>564988</IOffset>
       <BitSize>32</BitSize>
     </Symbol>
   </Symbols>