add validate github workflow

.github/workflows/validate.yaml

@@ -0,0 +1,17 @@
+name: Validate NFC Files
+
+on:
+  push:
+  pull_request:
+    types: [ opened, synchronize, reopened ]
+
+jobs:
+  validation:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: validate
+        run: ./validation.sh

.gitignore

@@ -1,2 +1,3 @@
 Extra
 *.ini
+.idea

validation.sh

@@ -1,6 +1,6 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
-shopt -s globstar
+ERR_FOUND=0
 
 REQUIRED_PATTERNS=(
   "Filetype: Flipper NFC device"
@@ -24,25 +24,45 @@ REQUIRED_PATTERNS=(
   "Lock EAS: false"
 )
 
-for filename in **/*.nfc; do
+FORBIDDEN_PATTERNS=(
+  "Subtype: ([0-9]){2}"
+  # Add more forbidden patterns here
+)
+
+# Use process substitution so that ERR_FOUND is updated in the main shell.
+while read -r filename; do
+  content=$(cat "$filename")
 
   for pattern in "${REQUIRED_PATTERNS[@]}"; do
-        if [ -z "$(grep -P "$pattern" "$filename")" ]; then
+    if ! echo "$content" | awk "/$pattern/ { found=1 } END { exit !found }"; then
-            echo $filename
+      echo "$filename"
       echo "    Missing: $pattern"
+      ERR_FOUND=1
     fi
   done
 
   # The likelihood of two blocks of 00 in data content is almost impossible,
   # so use that as a check for when the full data is not read
-    if [ ! -z "$(grep -P "Data Content:( [A-F0-9]{2})* 00 00( [A-F0-9]{2})*" "$filename")" ]; then
+  if echo "$content" | awk '/Data Content:( [A-F0-9]{2})* 00 00( [A-F0-9]{2})*/ { found=1 } END { exit !found }'; then
-        echo $filename
+    echo "$filename"
     echo "    Full data not read"
+    ERR_FOUND=1
   fi
 
-    if [ ! -z "$(grep -P "\r" "$filename")" ]; then
+  if echo "$content" | awk '/\r/ { found=1 } END { exit !found }'; then
-        echo $filename
+    echo "$filename"
     echo "    Has carriage return characters"
+    ERR_FOUND=1
   fi
 
-done
+  for pattern in "${FORBIDDEN_PATTERNS[@]}"; do
+    if echo "$content" | awk "/$pattern/ { found=1 } END { exit !found }"; then
+      echo "$filename"
+      echo "    Forbidden pattern found: $pattern"
+      ERR_FOUND=1
+    fi
+  done
+
+done < <(find . -type f -name "*.nfc")
+
+exit $ERR_FOUND