Fix purge-backup-trash.sh path bug: use full /backup/trash/<filename> paths instead of basenames only

purge-backup-trash.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+# Purge files from the backup trash directory.
+#
+# Usage:
+#   ./purge-backup-trash.sh [--dry-run]
+#
+# Environment:
+#   TRASH_DIR=/backup/trash          Directory containing trash files to purge
+#   DRY_RUN=false                    If true, only report what would be deleted
+
+set -euo pipefail
+
+BASEPATH="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=volume-utils.sh
+source "$BASEPATH/volume-utils.sh"
+
+TRASH_DIR="${TRASH_DIR:-/backup/trash}"
+
+DRY_RUN=false
+if [[ "${1:-}" == "--dry-run" ]]; then
+    DRY_RUN=true
+elif [[ -n "${1:-}" ]]; then
+    echo "Usage: $0 [--dry-run]" >&2
+    exit 1
+fi
+
+log() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" >&2
+}
+
+# Main purge function
+purge_trash() {
+    local total_bytes=0
+    local file_count=0
+    local delete_list=()
+
+    if [[ ! -d "$TRASH_DIR" ]]; then
+        log "Trash directory does not exist: $TRASH_DIR"
+        echo "0 0"
+        return
+    fi
+
+    # Find all files in the trash directory and build delete list with FULL paths
+    while IFS= read -r -d '' file; do
+        # Use full path, not just basename, to avoid stat() looking in wrong directory
+        delete_list+=("$file")
+    done < <(find "$TRASH_DIR" -maxdepth 1 -type f -print0 2>/dev/null)
+
+    # Process each file with full path
+    for file in "${delete_list[@]}"; do
+        if [[ ! -f "$file" ]]; then
+            continue
+        fi
+
+        local size
+        size=$(stat -c%s "$file" 2>/dev/null || echo 0)
+        total_bytes=$((total_bytes + size))
+        file_count=$((file_count + 1))
+
+        if $DRY_RUN; then
+            log "DRY-RUN would purge: $file (${size} bytes)"
+        else
+            rm -f -- "$file"
+            log "Purged: $file (${size} bytes)"
+        fi
+    done
+
+    echo "$file_count $total_bytes"
+}
+
+main() {
+    log "Starting trash purge from $TRASH_DIR (dry_run=$DRY_RUN)"
+
+    local count bytes
+    read -r count bytes < <(purge_trash)
+
+    local bytes_human
+    bytes_human=$(numfmt --to=iec-i --suffix=B "$bytes" 2>/dev/null || echo "${bytes}B")
+
+    log "Trash purge complete: deleted=$count files, freed≈$bytes_human"
+}
+
+main "$@"