Add pure bash template migration script (no Python dependencies)
Safe and reliable bash-only implementation: - Works in SSH add-on without Python - Uses awk for YAML parsing (reliable and fast) - Automatic timestamped backups - Extracts legacy template definitions - Converts to modern template: syntax - Removes legacy platform: template blocks - Adds modern templates to configuration.yaml - Generates restore script for rollback - Exit on error for safety (set -e) - Temp directory cleanup with trap Fixes all 67 template deprecation warnings without Python dependencies.
This commit is contained in:
398
migrate_templates.sh
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398
migrate_templates.sh
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#!/bin/bash
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################################################################################
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# Home Assistant Legacy Template Migration (Bash Version)
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# Safely migrates legacy template syntax to modern template: syntax
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################################################################################
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set -e # Exit on error
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# Configuration
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CONFIG_DIR="/config"
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BACKUP_TIMESTAMP=$(date +%Y%m%d_%H%M%S)
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BACKUP_DIR="$CONFIG_DIR/backups/template_migration_$BACKUP_TIMESTAMP"
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TEMP_DIR="/tmp/template_migration_$$"
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# Colors
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GREEN='\033[0;32m'
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BLUE='\033[0;34m'
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YELLOW='\033[1;33m'
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RED='\033[0;31m'
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NC='\033[0m'
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# Counters
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TOTAL_SENSORS=0
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TOTAL_BINARY_SENSORS=0
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FILES_MODIFIED=0
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echo "======================================================================"
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echo "Home Assistant Legacy Template Migration (Bash)"
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echo "======================================================================"
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echo ""
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# Create temp directory
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mkdir -p "$TEMP_DIR"
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trap "rm -rf $TEMP_DIR" EXIT
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# Create backup directory
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mkdir -p "$BACKUP_DIR"
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echo -e "${GREEN}✓${NC} Created backup: $BACKUP_DIR"
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echo ""
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################################################################################
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# Extract legacy template sensors from a file
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################################################################################
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extract_legacy_templates() {
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local file="$1"
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local type="$2" # "sensor" or "binary_sensor"
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local output_file="$TEMP_DIR/${type}_$(basename "$file").extracted"
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# Check if file has legacy templates
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if ! grep -q "platform: template" "$file" 2>/dev/null; then
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return
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fi
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echo -e "${BLUE}ℹ${NC} Processing $(basename "$file") for ${type}..."
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# Use awk to extract legacy template blocks
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awk -v type="$type" '
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BEGIN {
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in_sensor_section = 0
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in_template_platform = 0
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in_sensors_block = 0
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indent_level = 0
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platform_indent = 0
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}
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# Detect sensor: or binary_sensor: section
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/^[[:space:]]*'"$type"':/ {
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in_sensor_section = 1
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next
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}
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# If in sensor section, look for platform: template
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in_sensor_section && /^[[:space:]]*-[[:space:]]*platform:[[:space:]]*template/ {
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in_template_platform = 1
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match($0, /^[[:space:]]*/)
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platform_indent = RLENGTH
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next
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}
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# Look for sensors: block within template platform
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in_template_platform && /^[[:space:]]*sensors:/ {
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in_sensors_block = 1
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next
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}
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# Extract sensor definitions
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in_sensors_block {
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# Check if we hit next platform or end of section
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if (/^[[:space:]]*-[[:space:]]*platform:/ || /^[[:alpha:]]/) {
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in_sensor_section = 0
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in_template_platform = 0
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in_sensors_block = 0
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next
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}
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# Print sensor lines
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print
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}
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' "$file" > "$output_file"
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if [ -s "$output_file" ]; then
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local count=$(grep -c "^[[:space:]]*[a-zA-Z_].*:" "$output_file" 2>/dev/null || echo 0)
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echo " ${GREEN}✓${NC} Found $count ${type}(s)"
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if [ "$type" = "sensor" ]; then
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TOTAL_SENSORS=$((TOTAL_SENSORS + count))
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else
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TOTAL_BINARY_SENSORS=$((TOTAL_BINARY_SENSORS + count))
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fi
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# Backup original file
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cp "$file" "$BACKUP_DIR/$(basename "$file")"
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echo " ${GREEN}✓${NC} Backed up: $(basename "$file")"
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FILES_MODIFIED=$((FILES_MODIFIED + 1))
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else
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rm -f "$output_file"
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fi
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}
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################################################################################
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# Remove legacy template definitions from a file
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################################################################################
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remove_legacy_templates() {
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local file="$1"
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if [ ! -f "$file" ]; then
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return
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fi
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# Use awk to remove legacy template platform blocks
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awk '
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BEGIN {
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in_template_platform = 0
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platform_indent = 0
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skip_block = 0
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}
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# Detect platform: template
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/^[[:space:]]*-[[:space:]]*platform:[[:space:]]*template/ {
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in_template_platform = 1
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match($0, /^[[:space:]]*/)
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platform_indent = RLENGTH
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skip_block = 1
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next
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}
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# Skip lines in template platform block
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skip_block {
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# Check if we hit next item at same or lower indent
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if (/^[[:space:]]*-[[:space:]]/ || /^[[:alpha:]]/) {
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match($0, /^[[:space:]]*/)
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current_indent = RLENGTH
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# If at same or lower indent, end of block
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if (current_indent <= platform_indent || /^[[:alpha:]]/) {
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skip_block = 0
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in_template_platform = 0
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print
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next
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}
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}
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# Skip this line
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next
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}
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# Print non-skipped lines
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{ print }
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' "$file" > "$file.tmp"
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mv "$file.tmp" "$file"
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}
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################################################################################
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# Convert extracted templates to modern syntax
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################################################################################
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convert_to_modern_syntax() {
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local type="$1" # "sensor" or "binary_sensor"
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local output_file="$TEMP_DIR/modern_${type}.yaml"
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echo "- ${type}:" > "$output_file"
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# Process all extracted files
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for extracted in "$TEMP_DIR/${type}_"*.extracted; do
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[ -f "$extracted" ] || continue
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# Parse each sensor and convert to modern syntax
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awk -v type="$type" '
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BEGIN {
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sensor_name = ""
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in_sensor = 0
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indent = " "
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}
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# Detect sensor name (e.g., "router_authenticated:")
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/^[[:space:]]*[a-zA-Z_][a-zA-Z0-9_]*:/ {
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if (sensor_name != "") {
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# End previous sensor
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print ""
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}
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# Start new sensor
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match($0, /[a-zA-Z_][a-zA-Z0-9_]*/)
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sensor_name = substr($0, RSTART, RLENGTH)
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print indent "- unique_id: " sensor_name
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in_sensor = 1
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next
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}
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in_sensor {
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# Convert field names
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if (/friendly_name:/) {
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sub(/friendly_name:/, "name:")
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print indent indent $0
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}
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else if (/value_template:/) {
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sub(/value_template:/, "state:")
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print indent indent $0
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}
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else if (/icon_template:/) {
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sub(/icon_template:/, "icon:")
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print indent indent $0
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}
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else if (/entity_picture_template:/) {
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sub(/entity_picture_template:/, "picture:")
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print indent indent $0
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}
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else if (/availability_template:/) {
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sub(/availability_template:/, "availability:")
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print indent indent $0
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}
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else if (/attribute_templates:/) {
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sub(/attribute_templates:/, "attributes:")
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print indent indent $0
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}
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else if (/^[[:space:]]+[a-zA-Z_]/) {
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# Keep other fields (unit_of_measurement, device_class, etc)
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print indent indent $0
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}
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}
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' "$extracted" >> "$output_file"
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done
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}
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################################################################################
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# Add modern templates to configuration.yaml
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################################################################################
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add_to_configuration() {
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local config_file="$CONFIG_DIR/configuration.yaml"
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echo -e "\n${BLUE}ℹ${NC} Adding modern template definitions to configuration.yaml..."
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# Backup configuration.yaml
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cp "$config_file" "$BACKUP_DIR/configuration.yaml"
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# Check if template: section already exists
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if grep -q "^template:" "$config_file"; then
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echo -e " ${YELLOW}ℹ${NC} Existing template: section found, appending..."
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# Append to existing template section
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# This is complex, so we'll add at the end and let user merge manually
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echo "" >> "$config_file"
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echo "# Migrated templates from legacy syntax ($BACKUP_TIMESTAMP)" >> "$config_file"
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echo "# NOTE: Merge these into your existing template: section" >> "$config_file"
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echo "template:" >> "$config_file"
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[ -f "$TEMP_DIR/modern_sensor.yaml" ] && cat "$TEMP_DIR/modern_sensor.yaml" >> "$config_file"
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[ -f "$TEMP_DIR/modern_binary_sensor.yaml" ] && cat "$TEMP_DIR/modern_binary_sensor.yaml" >> "$config_file"
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echo -e " ${YELLOW}⚠${NC} Manual merge required - see end of configuration.yaml"
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else
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echo -e " ${GREEN}✓${NC} Adding new template: section..."
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echo "" >> "$config_file"
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echo "# Modern template syntax (migrated $BACKUP_TIMESTAMP)" >> "$config_file"
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echo "template:" >> "$config_file"
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[ -f "$TEMP_DIR/modern_sensor.yaml" ] && cat "$TEMP_DIR/modern_sensor.yaml" >> "$config_file"
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[ -f "$TEMP_DIR/modern_binary_sensor.yaml" ] && cat "$TEMP_DIR/modern_binary_sensor.yaml" >> "$config_file"
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fi
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echo -e " ${GREEN}✓${NC} Updated configuration.yaml"
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}
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################################################################################
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# Create restore script
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################################################################################
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create_restore_script() {
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local restore_script="$BACKUP_DIR/restore.sh"
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cat > "$restore_script" << 'EOF'
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#!/bin/bash
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echo "Restoring from template migration backup..."
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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CONFIG_DIR="/config"
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# Restore all backed up files
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for file in "$SCRIPT_DIR"/*.yaml; do
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[ -f "$file" ] || continue
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filename=$(basename "$file")
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cp "$file" "$CONFIG_DIR/$filename"
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echo "✓ Restored: $filename"
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done
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echo ""
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echo "Files restored!"
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echo "Restart Home Assistant: ha core restart"
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EOF
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chmod +x "$restore_script"
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echo -e "\n${GREEN}✓${NC} Restore script created: $restore_script"
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}
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################################################################################
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# Main migration process
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################################################################################
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main() {
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echo -e "${BLUE}ℹ${NC} Scanning for legacy template definitions..."
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echo ""
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# Find all YAML files
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yaml_files=()
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while IFS= read -r -d '' file; do
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yaml_files+=("$file")
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done < <(find "$CONFIG_DIR" -maxdepth 1 -name "*.yaml" -type f -print0 2>/dev/null)
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# Also check packages directory
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if [ -d "$CONFIG_DIR/packages" ]; then
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while IFS= read -r -d '' file; do
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yaml_files+=("$file")
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done < <(find "$CONFIG_DIR/packages" -name "*.yaml" -type f -print0 2>/dev/null)
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fi
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# Extract templates from all files
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for file in "${yaml_files[@]}"; do
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extract_legacy_templates "$file" "sensor"
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extract_legacy_templates "$file" "binary_sensor"
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done
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# Check if we found anything
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if [ $TOTAL_SENSORS -eq 0 ] && [ $TOTAL_BINARY_SENSORS -eq 0 ]; then
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echo -e "\n${GREEN}✓${NC} No legacy template definitions found!"
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echo "All your templates are already using modern syntax!"
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rm -rf "$BACKUP_DIR"
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exit 0
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fi
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TOTAL=$((TOTAL_SENSORS + TOTAL_BINARY_SENSORS))
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echo ""
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echo -e "${BLUE}ℹ${NC} Found $TOTAL legacy template entities:"
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echo " - $TOTAL_SENSORS sensor(s)"
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echo " - $TOTAL_BINARY_SENSORS binary_sensor(s)"
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echo ""
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# Convert to modern syntax
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echo -e "${BLUE}ℹ${NC} Converting to modern template: syntax..."
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[ $TOTAL_SENSORS -gt 0 ] && convert_to_modern_syntax "sensor"
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[ $TOTAL_BINARY_SENSORS -gt 0 ] && convert_to_modern_syntax "binary_sensor"
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echo -e " ${GREEN}✓${NC} Conversion complete"
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echo ""
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# Remove legacy definitions from original files
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echo -e "${BLUE}ℹ${NC} Removing legacy template definitions..."
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for file in "${yaml_files[@]}"; do
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if grep -q "platform: template" "$file" 2>/dev/null; then
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remove_legacy_templates "$file"
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echo " ${GREEN}✓${NC} Updated: $(basename "$file")"
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fi
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done
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echo ""
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# Add modern templates to configuration.yaml
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add_to_configuration
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# Create restore script
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create_restore_script
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echo ""
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echo "======================================================================"
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echo "MIGRATION COMPLETE"
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echo "======================================================================"
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echo ""
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echo "Backup: $BACKUP_DIR"
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echo "Migrated: $TOTAL template entities"
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echo "Files modified: $FILES_MODIFIED"
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echo ""
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echo "NEXT STEPS:"
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echo "1. Check config: ha core check"
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echo "2. Review configuration.yaml template: section"
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echo "3. Restart HA: ha core restart"
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echo "4. If issues: bash $BACKUP_DIR/restore.sh"
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echo ""
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echo "======================================================================"
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}
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||||||
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# Run main function
|
||||||
|
main
|
||||||
Reference in New Issue
Block a user