171 lines
6.6 KiB
EmacsLisp
171 lines
6.6 KiB
EmacsLisp
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;;; helm-find.el --- helm interface for find command. -*- 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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(defcustom helm-findutils-skip-boring-files t
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"Ignore boring files in find command results."
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:group 'helm-files
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:type 'boolean)
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(defcustom helm-findutils-search-full-path nil
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"Search in full path with shell command find when non-nil.
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I.e. use the -path/ipath arguments of find instead of
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-name/iname."
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:group 'helm-files
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:type 'boolean)
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(defcustom helm-find-noerrors nil
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"Prevent showing error messages in helm buffer when non nil."
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:group 'helm-files
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:type 'boolean)
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(defvar helm-find-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map helm-generic-files-map)
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(define-key map (kbd "DEL") 'helm-delete-backward-no-update)
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map))
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(defvar helm-source-findutils
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(helm-build-async-source "Find"
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:header-name (lambda (name)
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(concat name " in [" (helm-default-directory) "]"))
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:candidates-process 'helm-find-shell-command-fn
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:filtered-candidate-transformer 'helm-findutils-transformer
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:action-transformer 'helm-transform-file-load-el
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:persistent-action 'helm-ff-kill-or-find-buffer-fname
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:action 'helm-type-file-actions
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:help-message 'helm-generic-file-help-message
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:keymap helm-find-map
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:candidate-number-limit 9999
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:requires-pattern 3))
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(defun helm-findutils-transformer (candidates _source)
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(let (non-essential
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(default-directory (helm-default-directory)))
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(cl-loop for i in candidates
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for abs = (expand-file-name
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(helm-aif (file-remote-p default-directory)
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(concat it i) i))
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for type = (car (file-attributes abs))
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for disp = (if (and helm-ff-transformer-show-only-basename
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(not (string-match "[.]\\{1,2\\}$" i)))
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(helm-basename abs) abs)
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collect (cond ((eq t type)
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(cons (propertize disp 'face 'helm-ff-directory)
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abs))
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((stringp type)
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(cons (propertize disp 'face 'helm-ff-symlink)
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abs))
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(t (cons (propertize disp 'face 'helm-ff-file)
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abs))))))
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(defun helm-find--build-cmd-line ()
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(require 'find-cmd)
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(let* ((default-directory (or (file-remote-p default-directory 'localname)
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default-directory))
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(patterns+options (split-string helm-pattern "\\(\\`\\| +\\)\\* +"))
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(fold-case (helm-set-case-fold-search (car patterns+options)))
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(patterns (split-string (car patterns+options)))
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(additional-options (and (cdr patterns+options)
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(list (concat (cadr patterns+options) " "))))
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(ignored-dirs ())
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(ignored-files (when helm-findutils-skip-boring-files
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(cl-loop for f in completion-ignored-extensions
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if (string-match "/$" f)
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do (push (replace-match "" nil t f)
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ignored-dirs)
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else collect (concat "*" f))))
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(path-or-name (if helm-findutils-search-full-path
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'(ipath path) '(iname name)))
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(name-or-iname (if fold-case
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(car path-or-name) (cadr path-or-name))))
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(find-cmd (and ignored-dirs
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`(prune (name ,@ignored-dirs)))
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(and ignored-files
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`(not (name ,@ignored-files)))
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`(and ,@(mapcar
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(lambda (pattern)
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`(,name-or-iname ,(concat "*" pattern "*")))
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patterns)
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,@additional-options))))
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(defun helm-find-shell-command-fn ()
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"Asynchronously fetch candidates for `helm-find'.
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Additional find options can be specified after a \"*\"
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separator."
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(let* (process-connection-type
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non-essential
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(cmd (concat (helm-find--build-cmd-line)
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(if helm-find-noerrors "2> /dev/null" "")))
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(proc (start-file-process-shell-command "hfind" helm-buffer cmd)))
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(helm-log "Find command:\n%s" cmd)
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(prog1 proc
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(set-process-sentinel
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proc
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(lambda (process event)
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(helm-process-deferred-sentinel-hook
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process event (helm-default-directory))
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(if (string= event "finished\n")
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(helm-locate-update-mode-line "Find")
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(helm-log "Error: Find %s"
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(replace-regexp-in-string "\n" "" event))))))))
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(defun helm-find-1 (dir)
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(let ((default-directory (file-name-as-directory dir)))
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(helm :sources 'helm-source-findutils
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:buffer "*helm find*"
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:ff-transformer-show-only-basename nil
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:case-fold-search helm-file-name-case-fold-search)))
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;;; Preconfigured commands
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;;
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;;
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;;;###autoload
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(defun helm-find (arg)
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"Preconfigured `helm' for the find shell command.
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Recursively find files whose names are matched by all specified
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globbing PATTERNs under the current directory using the external
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program specified in `find-program' (usually \"find\"). Every
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input PATTERN is silently wrapped into two stars: *PATTERN*.
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With prefix argument, prompt for a directory to search.
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When user option `helm-findutils-search-full-path' is non-nil,
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match against complete paths, otherwise, against file names
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without directory part.
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The (possibly empty) list of globbing PATTERNs can be followed by
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the separator \"*\" plus any number of additional arguments that
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are passed to \"find\" literally."
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(interactive "P")
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(let ((directory
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(if arg
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(file-name-as-directory
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(read-directory-name "DefaultDirectory: "))
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default-directory)))
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(helm-find-1 directory)))
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(provide 'helm-find)
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;;; helm-find.el ends here
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