dotfiles/office/.config/imapfilter/filters/rollup-dump.lua

function sendToFolder(folderFrom, folderTo, senders)
    local messages = folderFrom:select_all()
    for _, sender in pairs(senders) do
        local filtered = messages:contain_from(sender)
        filtered:mark_seen()
        filtered:move_messages(folderTo)
    end
end

-- will set filters to be grabbed from XDG-compliant filter directory
-- can be overridden with env var IMAPFILTER_ROLLUPFILE
function getRollupFile(fname)
    local f
    local fname = fname or "rollup.txt"
    if os.getenv("IMAPFILTER_ROLLUPFILE") then
        f = os.getenv("IMAPFILTER_ROLLUPFILE")
    elseif os.getenv("XDG_DATA_HOME") then
        f = os.getenv("XDG_DATA_HOME") .. "/imapfilter/" .. fname
    else
        f = os.getenv("HOME") .. "/.local/share/imapfilter/" .. fname
    end
    return f
end

function getSenderList(rollupfile)
    local rollupSenders = {}

    local file = io.open(rollupfile)
    if file then
        for line in file:lines() do table.insert(rollupSenders, line) end
    else
        print(
            "rollup did not find rollup.txt file containing mail addresses at " ..
            rollupfile or ". Skipping.")
    end
    return rollupSenders
end

sendToFolder(accounts.gmail["Inbox"], accounts.gmail["Dump"],
    getSenderList(getRollupFile()))