The script used to unzip the datasets zipped by abstract level

unzip_by_level.sh

@@ -0,0 +1,153 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# extract_haid_level.sh  (fixed version)
+# Extract .zip archives named like <shapes>_shapes_mode<mode>.zip across a HAID tree.
+# This variant avoids process-substitution/mapfile to be more portable.
+#
+# Usage:
+#   ./extract_haid_level.sh <SRC_ROOT> [--shapes N] [--mode M] [--dest DEST_ROOT] [--dry-run] [--no-overwrite]
+#
+# Examples:
+#   ./extract_haid_level.sh /data/HAID
+#   ./extract_haid_level.sh /data/HAID --shapes 10
+#   ./extract_haid_level.sh /data/HAID --shapes 10 --mode 0 --dest /data/HAID_extracted --dry-run
+
+print_usage() {
+  cat <<EOF
+Usage: $0 <SRC_ROOT> [--shapes N] [--mode M] [--dest DEST_ROOT] [--dry-run] [--no-overwrite] [-h|--help]
+
+Options:
+  --shapes N       Shape count (e.g., 10). If omitted, matches all X.
+  --mode M         Mode (e.g., 0). Requires --shapes to be provided.
+  --dest DIR       Destination root for extraction (default: SRC_ROOT).
+  --dry-run        Only list archives that would be extracted (no extraction).
+  --no-overwrite   Do not overwrite existing files when extracting.
+  -h, --help       Show this help message.
+EOF
+}
+
+# ---- parse args ----
+if [[ $# -lt 1 ]]; then
+  print_usage
+  exit 2
+fi
+
+SRC_RAW="$1"; shift
+
+SHAPES=""
+MODE=""
+DEST_RAW=""
+DRY_RUN=false
+NO_OVERWRITE=false
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --shapes) SHAPES="$2"; shift 2 ;;
+    --mode) MODE="$2"; shift 2 ;;
+    --dest) DEST_RAW="$2"; shift 2 ;;
+    --dry-run) DRY_RUN=true; shift ;;
+    --no-overwrite) NO_OVERWRITE=true; shift ;;
+    -h|--help) print_usage; exit 0 ;;
+    *) echo "Unknown argument: $1" >&2; print_usage; exit 2 ;;
+  esac
+done
+
+if [[ -n "$MODE" && -z "$SHAPES" ]]; then
+  echo "Error: --mode requires --shapes to be provided." >&2
+  exit 3
+fi
+
+if ! command -v unzip >/dev/null 2>&1; then
+  echo "Error: 'unzip' not found. Install with: sudo apt install unzip" >&2
+  exit 4
+fi
+
+SRC="$(realpath "$SRC_RAW")"
+if [[ -z "$DEST_RAW" ]]; then
+  DEST="$SRC"
+else
+  mkdir -p "$DEST_RAW"
+  DEST="$(realpath "$DEST_RAW")"
+fi
+
+echo "Source root: $SRC"
+echo "Destination root: $DEST"
+
+if [[ -n "$SHAPES" ]]; then
+  if [[ -n "$MODE" ]]; then
+    echo "Will extract archives matching: ${SHAPES}_shapes_mode${MODE}.zip"
+    PATTERN="${SHAPES}_shapes_mode${MODE}.zip"
+  else
+    echo "Will extract archives matching: ${SHAPES}_shapes_mode*.zip"
+    PATTERN="${SHAPES}_shapes_mode*.zip"
+  fi
+else
+  echo "Will extract ALL '*_shapes_mode*.zip' archives"
+  PATTERN="*_shapes_mode*.zip"
+fi
+
+echo "Dry run: $DRY_RUN"
+echo "No overwrite existing files: $NO_OVERWRITE"
+echo
+
+# ---- find files into a temporary file (null-separated) ----
+TMPFILE="$(mktemp)"
+# ensure tmpfile removed on exit
+trap 'rm -f "$TMPFILE"' EXIT
+
+# Use find -print0 to preserve file names with spaces/newlines
+find "$SRC" -type f -name "$PATTERN" -print0 > "$TMPFILE"
+
+# Count found
+# awk -v RS='\0' 'END{print NR-1}' won't be portable; use loop to count below while extracting.
+found=0
+extracted=0
+errors=0
+skipped=0
+
+# Read entries one-by-one using read -d '' from the tmp file
+while IFS= read -r -d '' zipf; do
+  found=$((found+1))
+
+  # compute relative path and destination dir
+  rel="${zipf#$SRC/}"          # path like HAID-MiniImageNet/class_000/10_shapes_mode0.zip
+  rel_dir="$(dirname "$rel")"  # e.g. HAID-MiniImageNet/class_000
+  dest_dir="$DEST/$rel_dir"    # preserve same relative structure under DEST
+
+  echo "Archive: $rel"
+
+  if [[ $DRY_RUN == true ]]; then
+    echo "  DRYRUN: would extract '$zipf' into '$dest_dir/'"
+    continue
+  fi
+
+  mkdir -p "$dest_dir"
+
+  # unzip flags
+  if [[ $NO_OVERWRITE == true ]]; then
+    UNZIP_OPTS="-n"
+  else
+    UNZIP_OPTS="-o"
+  fi
+
+  if unzip -q $UNZIP_OPTS "$zipf" -d "$dest_dir"; then
+    echo "  EXTRACTED -> $dest_dir"
+    extracted=$((extracted+1))
+  else
+    echo "  ERROR extracting: $zipf" >&2
+    errors=$((errors+1))
+  fi
+
+done < "$TMPFILE"
+
+echo
+echo "Summary:"
+echo "  Matching archives found: $found"
+echo "  Successfully extracted: $extracted"
+echo "  Errors: $errors"
+if [[ $DRY_RUN == true ]]; then
+  echo "  (dry-run: no files were actually extracted)"
+fi
+
+exit 0