#!/bin/bash

copyFolder()
{
    local folder="$1"
    local folder_name=$(basename "$folder")
    local save_dir="$2"
    local user_name="$3"   # advisory — the destination path determines the owner

    # Write as the destination's owner — no root, no chown (see copyFile).
    if [[ "$save_dir" == "$containers_dir"* || "$save_dir" == /docker/containers/* ]]; then
        if [[ "$folder" == "$containers_dir"* || "$folder" == /docker/containers/* ]]; then
            # container -> container: same owner (dockerinstall), a plain cp works.
            local result=$(runFileOp cp -rf "$folder" "$save_dir")
        else
            # Cross-owner: a manager-owned source (e.g. the install dir) into the
            # container-owned destination. Under rootless a single cp can't read
            # one end and write the other, so bridge with a tar pipe — the manager
            # reads the source, dockerinstall writes the destination. No root, no
            # chown; files land owned by the destination user. pipefail so a
            # read-side failure isn't masked by a "successful" empty extract.
            ( set -o pipefail
              runInstallOp tar -C "$(dirname "$folder")" -cf - "$folder_name" \
                | runFileOp tar -C "$save_dir" -xf - )
        fi
    else
        local result=$(runInstallOp cp -rf "$folder" "$save_dir")
    fi
    checkSuccess "Copying $folder_name to $save_dir"
}