mirror of
https://github.com/correl/melpa.git
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124 lines
3.5 KiB
EmacsLisp
124 lines
3.5 KiB
EmacsLisp
;;; melpa.el --- special handling for the MELPA repository
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;;
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;; Copyright 2012 Donald Ephraim Curtis
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;;
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;; Author: Donald Ephraim Curtis <dcurtis@milkbox.net>
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;; URL: https://github.com/milkypostman/melpa
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;; Version: 0.3
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;;
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;;
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;; Credits:
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;; Steve Purcell
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;;
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;;
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;; Installation:
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;;
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;; (progn
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;; (switch-to-buffer
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;; (url-retrieve-synchronously
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;; "https://raw.github.com/milkypostman/melpa/master/melpa.el"))
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;; (package-install-from-buffer (package-buffer-info) 'single))
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;;
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;;
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;;
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;; Code goes here
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;;
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;;;###autoload
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(defcustom package-archive-enable-alist nil
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"Optional Alist of enabled packages used by `package-filter'.
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The format is (ARCHIVE . PACKAGE ...), where ARCHIVE is a string
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matching an archive name in `package-archives', PACKAGE is a
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symbol of a package in ARCHIVE to enable.
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If no ARCHIVE exists in the alist, all packages are enabled."
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:group 'package
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:type '(alist :key-type string :value-type (repeat symbol)))
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;;;###autoload
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(defcustom package-archive-exclude-alist nil
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"Alist of packages excluded by `package-filter'.
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The format is (ARCHIVE . PACKAGE ...), where ARCHIVE is a string
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matching an archive name in `package-archives', PACKAGE is a
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symbol of a package in that archive to exclude.
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Any specified package is excluded regardless of the value of
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`package-archive-enable-alist'"
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:group 'package
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:type '(alist :key-type string :value-type (repeat symbol)))
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;;;###autoload
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(defcustom package-filter-function 'package-filter
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"Optional predicate function used to internally
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filter packages used by package.el.
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Return nil to filter a function from the list.
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The function is called with the arguments PACKAGE VERSION ARCHIVE, where
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PACKAGE is a symbol, VERSION is a vector as produced by `version-to-list', and
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ARCHIVE is the string name of the package archive."
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:group 'package
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:type 'function)
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;;;###autoload
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(defadvice package-compute-transaction
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(before
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package-compute-transaction-reverse (package-list requirements)
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activate compile)
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"reverse the requirements"
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(setq requirements (reverse requirements))
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(print requirements))
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;; ;;;###autoload
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;; (defadvice package-download-tar
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;; (after package-download-tar-initialize activate compile)
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;; "initialize the package after compilation"
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;; (package-initialize))
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;; ;;;###autoload
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;; (defadvice package-download-single
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;; (after package-download-single-initialize activate compile)
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;; "initialize the package after compilation"
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;; (package-initialize))
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;;;###autoload
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(defadvice package--add-to-archive-contents
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(around package-filter-add-to-archive-contents (package archive)
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activate compile)
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"Add filtering of available packages using `package-filter-function',
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if non-nil."
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(when (and package-filter-function
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(funcall package-filter-function
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(car package)
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(package-desc-vers (cdr package))
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archive))
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ad-do-it))
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;;;###autoload
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(defun package-filter (package version archive)
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"Check package against enabled and excluded list for the `archive'.
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Filter packages not in the associated list for `archive' in
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`package-archive-enable-alist'.
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Filter packages in the associated list for `archive' in
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`package-archive-exclude-alist'."
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(let ((enable-rules (cdr (assoc archive package-archive-enable-alist)))
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(exclude-rules (cdr (assoc archive package-archive-exclude-alist))))
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(and (not (memq package exclude-rules))
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(or (not enable-rules)
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(memq package enable-rules)))))
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(provide 'melpa)
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;;; melpa.el ends here
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