Fix Unicode character issues in apt-layer scriptlets and recompile with clean source

dos2unix.sh

@@ -0,0 +1,144 @@
+#!/bin/bash
+
+# dos2unix mimic script
+# Converts DOS/Windows line endings (CRLF) to Unix line endings (LF)
+
+# Function to display usage
+usage() {
+    echo "Usage: $0 [OPTIONS] FILE..."
+    echo "Convert DOS/Windows line endings to Unix line endings"
+    echo ""
+    echo "Options:"
+    echo "  -h, --help     Show this help message"
+    echo "  -n, --newfile  Create new file with .unix extension"
+    echo "  -b, --backup   Create backup with .bak extension"
+    echo "  -q, --quiet    Suppress output messages"
+    echo ""
+    echo "Examples:"
+    echo "  $0 file.txt"
+    echo "  $0 -n file.txt"
+    echo "  $0 -b file.txt"
+    echo "  $0 *.txt"
+    exit 1
+}
+
+# Function to convert file
+convert_file() {
+    local input_file="$1"
+    local output_file="$2"
+    local backup="$3"
+    local quiet="$4"
+    
+    # Check if input file exists
+    if [ ! -f "$input_file" ]; then
+        echo "Error: File '$input_file' not found" >&2
+        return 1
+    fi
+    
+    # Check if file has DOS line endings
+    if ! grep -q $'\r' "$input_file"; then
+        [ "$quiet" != "true" ] && echo "dos2unix: converting file $input_file to Unix format..."
+        [ "$quiet" != "true" ] && echo "dos2unix: $input_file: No conversion needed (already Unix format)"
+        return 0
+    fi
+    
+    # Create backup if requested
+    if [ "$backup" = "true" ]; then
+        if ! cp "$input_file" "${input_file}.bak"; then
+            echo "Error: Cannot create backup file" >&2
+            return 1
+        fi
+        [ "$quiet" != "true" ] && echo "dos2unix: created backup: ${input_file}.bak"
+    fi
+    
+    # Convert line endings using sed
+    if sed 's/\r$//' "$input_file" > "$output_file"; then
+        [ "$quiet" != "true" ] && echo "dos2unix: converting file $input_file to Unix format..."
+        
+        # If output file is different from input (newfile mode), show message
+        if [ "$input_file" != "$output_file" ]; then
+            [ "$quiet" != "true" ] && echo "dos2unix: converted to $output_file"
+        fi
+        
+        return 0
+    else
+        echo "Error: Failed to convert $input_file" >&2
+        return 1
+    fi
+}
+
+# Parse command line arguments
+newfile=false
+backup=false
+quiet=false
+files=()
+
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        -h|--help)
+            usage
+            ;;
+        -n|--newfile)
+            newfile=true
+            shift
+            ;;
+        -b|--backup)
+            backup=true
+            shift
+            ;;
+        -q|--quiet)
+            quiet=true
+            shift
+            ;;
+        -*)
+            echo "Error: Unknown option $1" >&2
+            usage
+            ;;
+        *)
+            files+=("$1")
+            shift
+            ;;
+    esac
+done
+
+# Check if at least one file is provided
+if [ ${#files[@]} -eq 0 ]; then
+    echo "Error: No files specified" >&2
+    usage
+fi
+
+# Process each file
+exit_code=0
+for file in "${files[@]}"; do
+    # Expand wildcards
+    for expanded_file in $file; do
+        if [ -f "$expanded_file" ]; then
+            if [ "$newfile" = "true" ]; then
+                # Create new file with .unix extension
+                output_file="${expanded_file}.unix"
+            else
+                # Overwrite original file
+                output_file="$expanded_file"
+            fi
+            
+            if [ "$newfile" = "true" ]; then
+                # For newfile mode, we can directly convert
+                convert_file "$expanded_file" "$output_file" "$backup" "$quiet"
+            else
+                # For in-place conversion, use temporary file
+                temp_file=$(mktemp)
+                if convert_file "$expanded_file" "$temp_file" "$backup" "$quiet"; then
+                    mv "$temp_file" "$expanded_file"
+                else
+                    rm -f "$temp_file"
+                    exit_code=1
+                fi
+            fi
+        else
+            echo "Error: File '$expanded_file' not found" >&2
+            exit_code=1
+        fi
+    done
+done
+
+exit $exit_code