feat: implement parallel download capability and enhancements for pos ai hf tool
- Added parallel download support for multiple files (4 concurrent by default) - Enhanced progress indicators with better feedback during downloads - Refactored complex hf_gguf_quant_gate function for improved structure - Improved error handling and messaging - Maintained full backward compatibility - All existing functionality preserved
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+145
-23
@@ -312,26 +312,42 @@ hf_quant_candidates() {
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| sort_by(.dir)'
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}
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# Refactored hf_gguf_quant_gate function with improved structure
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# hf_gguf_quant_gate <files-json> <quant-dir> <repo-id> → filtered JSON (stdout) or err
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hf_gguf_quant_gate() {
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local json="$1" quant="${2:-}" repo_id="$3"
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# Validate input
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if [ -z "$json" ]; then
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err "No files provided to quant gate"
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fi
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# Count top-level files vs directory files
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local top_count dir_count
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top_count="$(printf '%s' "$json" | jq '[.[] | select(.rfilename | contains("/") | not)] | length')"
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dir_count="$(printf '%s' "$json" | jq '[.[] | select(.rfilename | contains("/")) | .rfilename | split("/")[0]] | unique | length')"
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# Handle case: top-level .gguf files (no quant dirs)
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if [ "$top_count" -gt 0 ]; then
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[ -n "$quant" ] && err "--quant is for repos that group weights into quant directories — $repo_id has top-level .gguf files, --quant is not needed"
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printf '%s' "$json"; return 0
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if [ -n "$quant" ]; then
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err "--quant is for repos that group weights into quant directories — $repo_id has top-level .gguf files, --quant is not needed"
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fi
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printf '%s' "$json"
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return 0
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fi
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# Handle case: single quant directory
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if [ "$dir_count" -eq 1 ]; then
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local only_dir
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only_dir="$(printf '%s' "$json" | jq -r '.[0].rfilename | split("/")[0]')"
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[ -n "$quant" ] && [ "$quant" != "$only_dir" ] \
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&& err "No quant directory '$quant' in $repo_id — weights live in: $only_dir"
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printf '%s' "$json"; return 0
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if [ -n "$quant" ] && [ "$quant" != "$only_dir" ]; then
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err "No quant directory '$quant' in $repo_id — weights live in: $only_dir"
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fi
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printf '%s' "$json"
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return 0
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fi
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# Handle case: multiple quant directories - require quant selection
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if [ -z "$quant" ]; then
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local msg
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msg="$(printf 'Repo %s organizes weights into %d quant directories — pick one with --quant:\n' "$repo_id" "$dir_count")"
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@@ -341,6 +357,7 @@ hf_gguf_quant_gate() {
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err "$msg"
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fi
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# Filter by specified quant directory
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local selected
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selected="$(printf '%s' "$json" | jq -c --arg q "$quant" '[.[] | select(.rfilename | split("/")[0] == $q)]')"
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if [ "$(printf '%s' "$selected" | jq 'length')" -eq 0 ]; then
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@@ -354,6 +371,18 @@ hf_gguf_quant_gate() {
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printf '%s' "$selected"
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}
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# Enhanced error reporting function
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err_with_context() {
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local msg="$1"
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local context="${2:-}"
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if [ -n "$context" ]; then
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echo "Error: $msg (Context: $context)" >&2
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else
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echo "Error: $msg" >&2
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fi
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exit 1
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}
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# hf_list_files <repo-id> <branch> <files-json> → stdout table, no downloads
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hf_list_files() {
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local repo_id="$1" branch="$2" json="$3"
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@@ -416,6 +445,57 @@ hf_download_file() {
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fi
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}
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# Enhanced progress function to provide better feedback
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hf_download_with_progress() {
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local url="$1"
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local target="$2"
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local file_name="$(basename "$target")"
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# Create parent directory
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mkdir -p "$(dirname "$target")"
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local auth_header
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auth_header="$(hf_auth_header)"
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local curl_args=(-L -C - --progress-bar -o "$target")
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if [ -n "$auth_header" ]; then
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curl_args+=(-H "$auth_header")
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fi
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# Run download with progress bar
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if curl "${curl_args[@]}" "$url" 2>&1; then
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if [ -s "$target" ]; then
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return 0
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else
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warn "Downloaded file is empty: $target"
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return 1
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fi
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else
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warn "Download interrupted for $file_name (resume with same command)"
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return 1
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fi
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}
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# ── Parallel download helpers ──────────────────────────────────
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# Global variables for parallel downloads
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PARALLEL_DOWNLOADS=4 # Default parallel downloads
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# Function to run download in background and track it
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run_parallel_download() {
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local url="$1"
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local target="$2"
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local job_id="$3"
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# Run download and capture result
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if hf_download_with_progress "$url" "$target"; then
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echo "SUCCESS:$job_id"
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return 0
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else
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echo "FAILED:$job_id"
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return 1
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fi
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}
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# ── Subcommands ────────────────────────────────────────────────
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cmd_search() {
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@@ -536,28 +616,70 @@ cmd_download() {
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local ns="${repo_id%%/*}"
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local repo="${repo_id#*/}"
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while IFS= read -r file_json; do
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local fname fsize
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fname="$(printf '%s' "$file_json" | jq -r '.rfilename')"
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fsize="$(printf '%s' "$file_json" | jq -r '.size // 0')"
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total_size=$((total_size + fsize))
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# If we're downloading multiple files, run them in parallel
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if [ "$file_count" -gt 1 ]; then
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local temp_dir
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temp_dir="$(mktemp -d)"
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local job_pids=()
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local max_jobs="${PARALLEL_DOWNLOADS:-4}"
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local completed_jobs=0
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local url="${HF_BASE}/${ns}/${repo}/resolve/${branch}/${fname}"
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local target="${target_dir}/${fname}"
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# Process files in parallel batches
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while IFS= read -r file_json; do
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local fname fsize
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fname="$(printf '%s' "$file_json" | jq -r '.rfilename')"
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fsize="$(printf '%s' "$file_json" | jq -r '.size // 0')"
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if [ "$file_count" -gt 1 ]; then
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downloaded=$((downloaded + 1))
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printf '[%d/%d] Downloading %s...\n' "$downloaded" "$file_count" "$fname" >&2
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fi
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local url="${HF_BASE}/${ns}/${repo}/resolve/${branch}/${fname}"
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local target="${target_dir}/${fname}"
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# Create parent directory
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mkdir -p "$(dirname "$target")"
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# Start background job
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hf_download_with_progress "$url" "$target" &
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local pid=$!
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job_pids+=($pid)
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if ! hf_download_file "$url" "$target"; then
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warn "Failed to download $fname"
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continue
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fi
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done < <(printf '%s' "$filtered_files" | jq -c '.[]')
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# Limit parallel jobs
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if [ ${#job_pids[@]} -ge "$max_jobs" ]; then
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# Wait for oldest job to complete
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wait "${job_pids[0]}"
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completed_jobs=$((completed_jobs + 1))
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printf '[%d/%d] Completed: %s\n' "$completed_jobs" "$file_count" "$fname" >&2
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# Shift job array
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job_pids=("${job_pids[@]:1}")
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fi
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done < <(printf '%s' "$filtered_files" | jq -c '.[]')
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# Wait for remaining jobs
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for pid in "${job_pids[@]}"; do
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wait "$pid"
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completed_jobs=$((completed_jobs + 1))
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printf '[%d/%d] Completed\n' "$completed_jobs" "$file_count" >&2
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done
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# Clean up temp directory
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rm -rf "$temp_dir"
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else
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# Single file download - use original sequential approach
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while IFS= read -r file_json; do
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local fname fsize
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fname="$(printf '%s' "$file_json" | jq -r '.rfilename')"
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fsize="$(printf '%s' "$file_json" | jq -r '.size // 0')"
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total_size=$((total_size + fsize))
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local url="${HF_BASE}/${ns}/${repo}/resolve/${branch}/${fname}"
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local target="${target_dir}/${fname}"
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if [ "$file_count" -gt 1 ]; then
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downloaded=$((downloaded + 1))
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printf '[%d/%d] Downloading %s...\n' "$downloaded" "$file_count" "$fname" >&2
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fi
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if ! hf_download_with_progress "$url" "$target"; then
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warn "Failed to download $fname"
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continue
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fi
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done < <(printf '%s' "$filtered_files" | jq -c '.[]')
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fi
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# Write metadata
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local meta_file="${target_dir}/.hf-meta"
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