311 lines
12 KiB
EmacsLisp
311 lines
12 KiB
EmacsLisp
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;;; helm-for-files.el --- helm-for-files and related. -*- lexical-binding: t -*-
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;; Copyright (C) 2012 ~ 2021 Thierry Volpiatto <thierry.volpiatto@gmail.com>
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Code:
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(require 'helm-files)
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(require 'helm-external)
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(require 'helm-bookmark)
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(defcustom helm-multi-files-toggle-locate-binding "C-c p"
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"Default binding to switch back and forth locate in `helm-multi-files'."
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:group 'helm-files
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:type 'string)
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(defcustom helm-for-files-preferred-list
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'(helm-source-buffers-list
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helm-source-recentf
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helm-source-bookmarks
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helm-source-file-cache
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helm-source-files-in-current-dir
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helm-source-locate)
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"Your preferred sources for `helm-for-files' and `helm-multi-files'.
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When adding a source here it is up to you to ensure the library
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of this source is accessible and properly loaded."
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:type '(repeat (choice symbol))
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:group 'helm-files)
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(defcustom helm-for-files-tramp-not-fancy t
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"Colorize remote files when non nil.
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Be aware that a nil value will make tramp display very slow."
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:group 'helm-files
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:type 'boolean)
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;;; File Cache
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;;
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;;
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(defvar file-cache-alist)
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(defclass helm-file-cache (helm-source-in-buffer helm-type-file)
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((init :initform (lambda () (require 'filecache)))))
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(defun helm-file-cache-get-candidates ()
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(cl-loop for item in file-cache-alist append
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(cl-destructuring-bind (base &rest dirs) item
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(cl-loop for dir in dirs collect
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(concat dir base)))))
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(defvar helm-source-file-cache nil)
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(defcustom helm-file-cache-fuzzy-match nil
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"Enable fuzzy matching in `helm-source-file-cache' when non--nil."
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:group 'helm-files
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:type 'boolean
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:set (lambda (var val)
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(set var val)
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(setq helm-source-file-cache
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(helm-make-source "File Cache" 'helm-file-cache
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:fuzzy-match helm-file-cache-fuzzy-match
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:data 'helm-file-cache-get-candidates))))
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(cl-defun helm-file-cache-add-directory-recursively
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(dir &optional match (ignore-dirs t))
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(require 'filecache)
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(cl-loop for f in (helm-walk-directory
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dir
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:path 'full
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:directories nil
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:match match
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:skip-subdirs ignore-dirs)
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do (file-cache-add-file f)))
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(defun helm-transform-file-cache (actions _candidate)
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(let ((source (helm-get-current-source)))
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(if (string= (assoc-default 'name source) "File Cache")
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(append actions
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'(("Remove marked files from file-cache"
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. helm-ff-file-cache-remove-file)))
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actions)))
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;;; Recentf files
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;;
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;;
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(defvar helm-recentf--basename-flag nil)
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(defun helm-recentf-pattern-transformer (pattern)
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(let ((pattern-no-flag (replace-regexp-in-string " -b" "" pattern)))
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(cond ((and (string-match " " pattern-no-flag)
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(string-match " -b\\'" pattern))
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(setq helm-recentf--basename-flag t)
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pattern-no-flag)
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((string-match "\\([^ ]*\\) -b\\'" pattern)
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(prog1 (match-string 1 pattern)
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(setq helm-recentf--basename-flag t)))
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(t (setq helm-recentf--basename-flag nil)
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pattern))))
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(defcustom helm-turn-on-recentf t
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"Automatically turn on `recentf-mode' when non-nil."
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:group 'helm-files
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:type 'boolean)
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(defclass helm-recentf-source (helm-source-sync helm-type-file)
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((init :initform (lambda ()
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(require 'recentf)
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(when helm-turn-on-recentf (recentf-mode 1))))
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(candidates :initform (lambda () recentf-list))
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(pattern-transformer :initform 'helm-recentf-pattern-transformer)
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(match-part :initform (lambda (candidate)
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(if (or helm-ff-transformer-show-only-basename
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helm-recentf--basename-flag)
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(helm-basename candidate) candidate)))
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(migemo :initform t)
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(persistent-action :initform 'helm-ff-kill-or-find-buffer-fname)))
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(cl-defmethod helm--setup-source :after ((source helm-recentf-source))
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(setf (slot-value source 'action)
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(append (symbol-value (helm-actions-from-type-file))
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'(("Delete file(s) from recentf" .
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(lambda (_candidate)
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(cl-loop for file in (helm-marked-candidates)
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do (setq recentf-list (delete file recentf-list)))))))))
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(defvar helm-source-recentf nil
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"See (info \"(emacs)File Conveniences\").
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Set `recentf-max-saved-items' to a bigger value if default is too
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small.")
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(defcustom helm-recentf-fuzzy-match nil
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"Enable fuzzy matching in `helm-source-recentf' when non-nil."
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:group 'helm-files
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:type 'boolean
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:set (lambda (var val)
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(set var val)
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(let ((helm-fuzzy-sort-fn 'helm-fuzzy-matching-sort-fn-preserve-ties-order))
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(setq helm-source-recentf
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(helm-make-source "Recentf" 'helm-recentf-source
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:fuzzy-match helm-recentf-fuzzy-match)))))
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;;; Files in current dir
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;;
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;;
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(defun helm-highlight-files (files _source)
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"A basic transformer for helm files sources.
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Colorize only symlinks, directories and files."
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(cl-loop with mp-fn = (or (assoc-default
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'match-part (helm-get-current-source))
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'identity)
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for i in files
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for disp = (if (and helm-ff-transformer-show-only-basename
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(not (helm-dir-is-dot i))
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(not (and helm--url-regexp
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(string-match helm--url-regexp i)))
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(not (string-match helm-ff-url-regexp i)))
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(helm-basename i) (abbreviate-file-name i))
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for isremote = (or (file-remote-p i)
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(helm-file-on-mounted-network-p i))
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;; Call file-attributes only if:
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;; - file is not remote
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;; - helm-for-files--tramp-not-fancy is nil and file is remote AND
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;; connected. (Bug#1679)
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for type = (and (or (null isremote)
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(and (null helm-for-files-tramp-not-fancy)
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(file-remote-p i nil t)))
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(car (file-attributes i)))
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collect
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(cond ((and (null type) isremote) (cons disp i))
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((stringp type)
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(cons (propertize disp
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'face 'helm-ff-symlink
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'match-part (funcall mp-fn disp)
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'help-echo (expand-file-name i))
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i))
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((eq type t)
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(cons (propertize disp
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'face 'helm-ff-directory
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'match-part (funcall mp-fn disp)
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'help-echo (expand-file-name i))
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i))
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(t (let* ((ext (helm-file-name-extension disp))
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(disp (propertize disp
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'face 'helm-ff-file
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'match-part (funcall mp-fn disp)
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'help-echo (expand-file-name i))))
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(when (condition-case _err
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(string-match (format "\\.\\(%s\\)$" ext) disp)
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(invalid-regexp nil))
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(add-face-text-property
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(match-beginning 1) (match-end 1)
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'helm-ff-file-extension nil disp))
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(cons disp i))))))
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(defclass helm-files-in-current-dir-source (helm-source-sync helm-type-file)
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((candidates :initform (lambda ()
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(with-helm-current-buffer
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(let ((dir (helm-current-directory)))
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(when (file-accessible-directory-p dir)
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(directory-files dir t))))))
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(pattern-transformer :initform 'helm-recentf-pattern-transformer)
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(match-part :initform (lambda (candidate)
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(if (or helm-ff-transformer-show-only-basename
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helm-recentf--basename-flag)
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(helm-basename candidate) candidate)))
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(fuzzy-match :initform t)
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(migemo :initform t)))
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(defvar helm-source-files-in-current-dir
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(helm-make-source "Files from Current Directory"
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'helm-files-in-current-dir-source))
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;;;###autoload
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(defun helm-for-files ()
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"Preconfigured `helm' for opening files.
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Run all sources defined in `helm-for-files-preferred-list'."
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(interactive)
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(require 'helm-x-files)
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(unless helm-source-buffers-list
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(setq helm-source-buffers-list
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(helm-make-source "Buffers" 'helm-source-buffers)))
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(helm :sources helm-for-files-preferred-list
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:ff-transformer-show-only-basename nil
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:buffer "*helm for files*"
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:truncate-lines helm-buffers-truncate-lines))
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(defun helm-multi-files-toggle-to-locate ()
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(interactive)
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(with-helm-alive-p
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(with-helm-buffer
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(if (setq helm-multi-files--toggle-locate
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(not helm-multi-files--toggle-locate))
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(progn
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(helm-set-sources (unless (memq 'helm-source-locate
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helm-sources)
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(cons 'helm-source-locate helm-sources)))
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(helm-set-source-filter '(helm-source-locate)))
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(helm-kill-async-processes)
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(helm-set-sources (remove 'helm-source-locate
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helm-for-files-preferred-list))
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(helm-set-source-filter nil)))))
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(put 'helm-multi-files-toggle-to-locate 'helm-only t)
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;;;###autoload
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(defun helm-multi-files ()
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"Preconfigured helm like `helm-for-files' but running locate only on demand.
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Allow toggling back and forth from locate to others sources with
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`helm-multi-files-toggle-locate-binding' key.
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This avoids launching locate needlessly when what you are
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searching for is already found."
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(interactive)
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(require 'helm-x-files)
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(unless helm-source-buffers-list
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(setq helm-source-buffers-list
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(helm-make-source "Buffers" 'helm-source-buffers)))
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(setq helm-multi-files--toggle-locate nil)
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(helm-locate-set-command)
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(helm-set-local-variable 'helm-async-outer-limit-hook
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(list (lambda ()
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(when (and helm-locate-fuzzy-match
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(not (string-match-p
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"\\s-" helm-pattern)))
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(helm-redisplay-buffer)))))
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(let ((sources (remove 'helm-source-locate helm-for-files-preferred-list))
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(helm-locate-command
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(if helm-locate-fuzzy-match
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(unless (string-match-p "\\`locate -b" helm-locate-command)
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(replace-regexp-in-string
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"\\`locate" "locate -b" helm-locate-command))
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helm-locate-command))
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(old-key (lookup-key
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helm-map
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(read-kbd-macro helm-multi-files-toggle-locate-binding))))
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(with-helm-temp-hook 'helm-after-initialize-hook
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(define-key helm-map (kbd helm-multi-files-toggle-locate-binding)
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'helm-multi-files-toggle-to-locate))
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(unwind-protect
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(helm :sources sources
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:ff-transformer-show-only-basename nil
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:buffer "*helm multi files*"
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:truncate-lines helm-buffers-truncate-lines)
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(define-key helm-map (kbd helm-multi-files-toggle-locate-binding)
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old-key))))
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;;;###autoload
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(defun helm-recentf ()
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"Preconfigured `helm' for `recentf'."
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(interactive)
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(helm :sources 'helm-source-recentf
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:ff-transformer-show-only-basename nil
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:buffer "*helm recentf*"))
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(provide 'helm-for-files)
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;;; helm-for-files.el ends here
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