Remove obsolete cache playlist functionality
It has been replaced by a git-annex powered backend long ago.
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4
init.el
4
init.el
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@ -2138,10 +2138,8 @@ With given ARG, display files in `db/important-document-path’."
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(db/playlist-files-from-git-annex-find
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"--metadata db-playlist=include")))
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:commands (db/play-auto-playlist
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db/playlist-files-from-cache
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db/playlist-files-from-git-annex-find
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db/play-auto-playlist-from-git-annex-find
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db/update-playlist-cache-from-directory))
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db/play-auto-playlist-from-git-annex-find))
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;; * Shells and such
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@ -16,7 +16,7 @@
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:group 'convenience
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:tag "db-music")
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(defcustom db/auto-playlist-file-function #'db/play-playlist-from-cache
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(defcustom db/auto-playlist-file-function #'db/play-auto-playlist-from-git-annex-find
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"Function that has to return a list of all music files that
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should be included in the auto playlist."
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:group 'db-music
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@ -54,60 +54,6 @@ Shuffle it and start playing it afterwards."
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(emms-playlist-select-first)
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(emms-start)))))
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(defcustom db/playlist nil
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"List of songs to include in a random playlist."
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:group 'db-music
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:type '(alist :value-type (choice (const :tag "Undecided" :undecided)
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(const :tag "Include" :include)
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(const :tag "Exclude" :exclude))
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:key-type file))
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(defun db/playlist-files-from-cache ()
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"Generate files for auto playlist from `db/playlist’ cache."
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(interactive)
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(->> db/playlist
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(cl-remove-if-not #'(lambda (track)
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(eq (cdr track) :include)))
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(mapcar #'car)))
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(defun db/update-playlist-cache-from-directory (directory)
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"Recursively traverse DIRECTORY and update `db/playlist’.
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Files not present `db/playlist’ but that are found in DIRECTORY
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are added to `db/playlist’ with tag :undecided, to show the user
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that these files are new. Tracks in `db/playlist’ that do not
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exist anymore are removed from it."
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(interactive (list (expand-file-name "songs/"
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emms-source-file-default-directory)))
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;; First convert to hash table for performance
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(let ((playlist-hash (make-hash-table :test #'equal)))
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(dolist (track db/playlist)
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(when (file-exists-p (car track))
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(puthash (car track) (cdr track) playlist-hash)))
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(let (new-playlist)
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;; Iterate over files in DIRECTORY and add them to the playlist, with the
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;; already known state whenever possible
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(dolist (file (directory-files-recursively directory ""))
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(message "Checking %s" file)
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(push (cons file (gethash file playlist-hash :undecided))
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new-playlist)
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(remhash file playlist-hash))
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;; Keep all other tracks that are not in DIRECTORY
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(maphash #'(lambda (track state)
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(push (cons track state) new-playlist))
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playlist-hash)
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;; Sort to keep version control happy
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(setq new-playlist
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(sort new-playlist
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#'(lambda (track-1 track-2)
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(string< (car track-1) (car track-2)))))
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;; Save and exit
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(customize-save-variable 'db/playlist new-playlist))))
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(defun db/playlist-files-from-git-annex-find (match-expression)
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"Generate playlist from git annex find on MATCH-EXPRESSION.
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