tvl-depot/users/sterni/mblog/maildir.lisp

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;; SPDX-License-Identifier: GPL-3.0-only
;; SPDX-FileCopyrightText: Copyright (C) 2022 by sterni
(in-package :maildir)
(declaim (optimize (safety 3)))
(defun list (dir)
"Returns a list of pathnames to messages in a maildir. The messages are
returned in no guaranteed order. Note that this function doesn't fully
implement the behavior prescribed by maildir(5): It only looks at `cur`
and `new` and won't clean up `tmp` nor move files from `new` to `cur`,
since it is strictly read-only."
(flet ((subdir-contents (subdir)
(directory
(merge-pathnames
(make-pathname :directory `(:relative ,subdir)
:name :wild :type :wild)
dir))))
(mapcan #'subdir-contents '("cur" "new"))))