2019-03-02 13:37:05 +01:00
|
|
|
|
;;; db-music.el -- Music related stuff -*- lexical-binding: t -*-
|
|
|
|
|
|
|
|
|
|
;;; Commentary:
|
|
|
|
|
|
|
|
|
|
;;; Code:
|
|
|
|
|
|
2019-06-10 09:22:30 +02:00
|
|
|
|
(require 'dash)
|
2020-06-26 22:28:15 +02:00
|
|
|
|
(require 'subr-x)
|
|
|
|
|
(require 'seq)
|
2019-03-02 14:36:34 +01:00
|
|
|
|
(require 'emms)
|
2020-06-26 22:28:15 +02:00
|
|
|
|
(require 'emms-source-file)
|
2019-03-02 13:37:05 +01:00
|
|
|
|
|
2019-06-10 11:33:35 +02:00
|
|
|
|
(defgroup db-music nil
|
|
|
|
|
"General configurations for music-related functionality."
|
|
|
|
|
:prefix "db-music"
|
|
|
|
|
:group 'convenience
|
|
|
|
|
:tag "db-music")
|
|
|
|
|
|
2020-06-26 22:29:44 +02:00
|
|
|
|
(defcustom db/auto-playlist-file-function #'db/play-auto-playlist-from-git-annex-find
|
2019-06-10 14:11:52 +02:00
|
|
|
|
"Function that has to return a list of all music files that
|
|
|
|
|
should be included in the auto playlist."
|
2019-06-10 11:33:35 +02:00
|
|
|
|
:group 'db-music
|
|
|
|
|
:type 'function)
|
|
|
|
|
|
2019-06-10 14:11:52 +02:00
|
|
|
|
(defun db/play-auto-playlist ()
|
|
|
|
|
"Generate playlist using `db/auto-playlist-file-function’ and
|
|
|
|
|
start playing it.
|
|
|
|
|
|
|
|
|
|
Current backend is EMMS."
|
|
|
|
|
(interactive)
|
|
|
|
|
(db/-emms-playlist-from-files (funcall db/auto-playlist-file-function)))
|
|
|
|
|
|
|
|
|
|
;; Idea: make this customizable, so that we can later switch to another backend
|
|
|
|
|
;; if necessary
|
2019-06-10 11:33:35 +02:00
|
|
|
|
|
2019-06-10 09:22:30 +02:00
|
|
|
|
(defun db/-emms-playlist-from-files (files)
|
|
|
|
|
"Generate EMMS playlist from FILES.
|
|
|
|
|
|
|
|
|
|
Shuffle it and start playing it afterwards."
|
2019-06-10 09:37:50 +02:00
|
|
|
|
(when (seq-empty-p files)
|
|
|
|
|
(user-error "List of files is empty, nothing to do"))
|
2019-06-10 09:22:30 +02:00
|
|
|
|
(save-window-excursion
|
|
|
|
|
(let ((music-buffer-name "*EMMS Playlist* -- Personal"))
|
|
|
|
|
(unless (get-buffer music-buffer-name)
|
|
|
|
|
(emms-playlist-new music-buffer-name))
|
|
|
|
|
(with-current-buffer (get-buffer music-buffer-name)
|
|
|
|
|
(emms-stop)
|
|
|
|
|
(emms-playlist-set-playlist-buffer)
|
|
|
|
|
(emms-playlist-current-clear)
|
|
|
|
|
(dolist (track files)
|
|
|
|
|
(emms-playlist-current-insert-source 'emms-insert-file track))
|
|
|
|
|
(goto-char (point-min))
|
|
|
|
|
(emms-shuffle)
|
|
|
|
|
(emms-playlist-select-first)
|
|
|
|
|
(emms-start)))))
|
|
|
|
|
|
2019-06-10 16:26:58 +02:00
|
|
|
|
(defun db/playlist-files-from-git-annex-find (match-expression)
|
|
|
|
|
"Generate playlist from git annex find on MATCH-EXPRESSION.
|
|
|
|
|
|
|
|
|
|
Prompts for MATCH-EXPRESSION when called interactively.
|
|
|
|
|
Generates playlist that is comprised of exactly those files that
|
|
|
|
|
are match it. Assumes `emms-source-file-default-directory’ to be
|
|
|
|
|
part of a git-annex repository, and will complain otherwise."
|
|
|
|
|
(interactive "smatch expression: ")
|
|
|
|
|
(let* ((default-directory emms-source-file-default-directory))
|
|
|
|
|
(->> (split-string (with-output-to-string
|
|
|
|
|
(with-current-buffer standard-output
|
|
|
|
|
(let ((return-value (apply #'call-process
|
|
|
|
|
"git" nil t nil
|
|
|
|
|
"annex" "find"
|
|
|
|
|
(split-string match-expression))))
|
|
|
|
|
(unless (zerop return-value)
|
|
|
|
|
(error "Call to `git-annex-find’ failed: %s"
|
|
|
|
|
(buffer-string))))))
|
|
|
|
|
"\n")
|
|
|
|
|
(cl-remove-if-not #'(lambda (path)
|
|
|
|
|
(and (not (string-empty-p path))
|
|
|
|
|
(file-exists-p path)
|
|
|
|
|
(file-readable-p path))))
|
|
|
|
|
(mapcar #'(lambda (path)
|
|
|
|
|
(expand-file-name
|
|
|
|
|
path
|
|
|
|
|
emms-source-file-default-directory))))))
|
2019-06-10 16:27:28 +02:00
|
|
|
|
|
|
|
|
|
(defun db/play-auto-playlist-from-git-annex-find ()
|
|
|
|
|
"Interactively query user for a git-annex match expression and
|
|
|
|
|
play resulting list of audio files.
|
|
|
|
|
|
|
|
|
|
See `db/playlist-files-from-git-annex-find’ for more details."
|
|
|
|
|
(interactive)
|
|
|
|
|
(db/-emms-playlist-from-files
|
|
|
|
|
(call-interactively #'db/playlist-files-from-git-annex-find)))
|
|
|
|
|
|
2019-03-02 13:37:05 +01:00
|
|
|
|
(provide 'db-music)
|
|
|
|
|
|
|
|
|
|
;;; db-music ends here
|