Sort tracks in auto-generated playlists by title and author
For this, the playlist export of EMMS is used to enable sorting by track metadata. The current implementation is a first try and may contain some bugs when track metadata is not readily available.master
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@ -162,14 +162,13 @@ Candidates are taken from `db/radio-stations'."
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;; Playlist management
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(cl-defun db/write-m3u-playlist-from-git-annex-find
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(file name match-expression
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(file match-expression
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&optional (base-dir emms-source-file-default-directory) overwrite)
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"Write an M3U playlist to FILE with NAME containing all files
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found by git-annex-find using MATCH-EXPRESSION. NAME will be
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written to the M3U playlist using the non-standard ”#PLAYLIST:”
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directive. Conduct search with git-annex-find in BASE-DIR.
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Query for overwrite if FILE already exists, unless OVERWRITE is
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non-nil."
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"Write an M3U playlist to FILE based on a git-annex MATCH-EXPRESSION.
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The playlist will contain all files found by git-annex-find using
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MATCH-EXPRESSION. Conduct search with git-annex-find in
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BASE-DIR. Query for overwrite if FILE already exists, unless
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OVERWRITE is non-nil."
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(interactive "FFile name of playlist: \nsPlaylist name: \nsgit annex match-expression: ")
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(let ((base-dir (expand-file-name base-dir)))
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(unless (file-accessible-directory-p base-dir)
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@ -177,34 +176,47 @@ non-nil."
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(unless (or (not (file-exists-p file))
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overwrite
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(yes-or-no-p (format "File %s already exists, overwrite?" file)))
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(user-error "Error: %s exists and shall not be overwritten, aborting." file))
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(user-error "Error: %s exists and shall not be overwritten, aborting" file))
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(let ((default-directory base-dir))
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(with-temp-buffer
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(insert "#EXTM3U\n")
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(insert (format "#PLAYLIST: %s\n" name))
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(let* ((return-code nil)
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(output (with-output-to-string
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(with-current-buffer standard-output
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(setq return-code (apply #'call-process
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"git" nil t nil
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"annex" "find"
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(split-string match-expression)))))))
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(if (not (zerop return-code))
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(error "%s" output)
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(insert output)
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(write-file file)))))))
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(let* ((return-code nil)
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(output (with-output-to-string
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(with-current-buffer standard-output
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(setq return-code (apply #'call-process
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"git" nil t nil
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"annex" "find"
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(split-string match-expression)))))))
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(if (not (zerop return-code))
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(error "%s" output)
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(let ((emms-source-playlist-ask-before-overwrite (not overwrite))
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(emms-temp-playlist-buffer (emms-playlist-new " *EMMS Playlist Export*")))
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(with-current-buffer emms-temp-playlist-buffer
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(emms-playlist-clear)
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(dolist (track (split-string output "[\n\r]+"))
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(emms-insert-file track))
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(emms-playlist-sort-by-info-title)
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(emms-playlist-sort-by-info-artist)
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;; When writing the playlist, we simulate the current buffer to be
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;; the current playlist, as otherwise `emms-playlist-save' will
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;; ask for confirmation.
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(with-current-emms-playlist
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(emms-playlist-save 'm3u file)))
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(kill-buffer emms-temp-playlist-buffer)))))))
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(defun db/update-playlist-files ()
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"Update personal playlist files."
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(interactive)
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(message "Update favorites playlist")
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(db/write-m3u-playlist-from-git-annex-find
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"~/Documents/media/audio/others/daniels-favorite.m3u" "Daniel's Favorites"
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"../songs/ --metadata rating-daniel>=0.9" "~/Documents/media/audio/others/" t)
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"~/Documents/media/audio/others/daniels-favorite.m3u"
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"../songs/ --metadata rating-daniel>=0.9"
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"~/Documents/media/audio/others/"
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'overwrite)
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(message "Update work playlist")
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(db/write-m3u-playlist-from-git-annex-find
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"~/Documents/media/audio/others/daniels-work-list.m3u" "Daniel's Work Music"
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"../songs/ --metadata db-work=include" "~/Documents/media/audio/others/" t))
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"~/Documents/media/audio/others/daniels-work-list.m3u"
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"../songs/ --metadata db-work=include"
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"~/Documents/media/audio/others/"
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'overwrite))
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