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;;; helm-id-utils.el --- Helm interface for id-utils. -*- lexical-binding: t -*-
;; Copyright (C) 2015 ~ 2019 Thierry Volpiatto <thierry.volpiatto@gmail.com>
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'helm-grep)
(require 'helm-help)
(defgroup helm-id-utils nil
"ID-Utils related Applications and libraries for Helm."
:group 'helm)
(defcustom helm-gid-program "gid"
"Name of gid command (usually `gid').
For Mac OS X users, if you install GNU coreutils, the name `gid'
might be occupied by `id' from GNU coreutils, and you should set
it to correct name (or absolute path). For example, if using
MacPorts to install id-utils, it should be `gid32'."
:group 'helm-id-utils
:type 'file)
(defcustom helm-gid-db-file-name "ID"
"Name of a database file created by `mkid' command from `ID-utils'."
:group 'helm-id-utils
:type 'string)
(defun helm-gid-candidates-process ()
(let* ((patterns (helm-mm-split-pattern helm-pattern))
(default-com (format "%s -r %s" helm-gid-program
(shell-quote-argument (car patterns))))
(cmd (helm-aif (cdr patterns)
(concat default-com
(cl-loop for p in it
concat (format " | grep --color=always %s"
(shell-quote-argument p))))
default-com))
(proc (start-process-shell-command
"gid" helm-buffer cmd)))
(set (make-local-variable 'helm-grep-last-cmd-line) cmd)
(prog1 proc
(set-process-sentinel
proc (lambda (_process event)
(when (string= event "finished\n")
(helm-maybe-show-help-echo)
(with-helm-window
(setq mode-line-format
'(" " mode-line-buffer-identification " "
(:eval (format "L%s" (helm-candidate-number-at-point))) " "
(:eval (propertize
(format "[Helm Gid process finished - (%s results)]"
(max (1- (count-lines
(point-min) (point-max)))
0))
'face 'helm-locate-finish))))
(force-mode-line-update))
(helm-log "Error: Gid %s"
(replace-regexp-in-string "\n" "" event))))))))
(defun helm-gid-filtered-candidate-transformer (candidates _source)
;; "gid -r" may add dups in some rare cases.
(cl-loop for c in (helm-fast-remove-dups candidates :test 'equal)
collect (helm-grep--filter-candidate-1 c)))
(defclass helm-gid-source (helm-source-async)
((header-name
:initform
(lambda (name)
(concat name " [" (helm-attr 'db-dir) "]")))
(db-dir :initarg :db-dir
:initform nil
:custom string
:documentation " Location of ID file.")
(candidates-process :initform #'helm-gid-candidates-process)
(filtered-candidate-transformer
:initform #'helm-gid-filtered-candidate-transformer)
(candidate-number-limit :initform 99999)
(action :initform (helm-make-actions
"Find File" 'helm-grep-action
"Find file other frame" 'helm-grep-other-frame
"Save results in grep buffer" 'helm-grep-save-results
"Find file other window" 'helm-grep-other-window))
(persistent-action :initform 'helm-grep-persistent-action)
(history :initform 'helm-grep-history)
(nohighlight :initform t)
(help-message :initform 'helm-grep-help-message)
(requires-pattern :initform 2)))
;;;###autoload
(defun helm-gid ()
"Preconfigured `helm' for `gid' command line of `ID-Utils'.
Need A database created with the command `mkid' above
`default-directory'.
Need id-utils as dependency which provide `mkid', `gid' etc..
See <https://www.gnu.org/software/idutils/>."
(interactive)
(let* ((db (locate-dominating-file
default-directory
helm-gid-db-file-name))
(helm-grep-default-directory-fn
(lambda () default-directory))
(helm-maybe-use-default-as-input t))
(cl-assert db nil "No DataBase found, create one with `mkid'")
(helm :sources (helm-make-source "Gid" 'helm-gid-source
:db-dir db)
:buffer "*helm gid*"
:keymap helm-grep-map
:truncate-lines helm-grep-truncate-lines)))
(provide 'helm-id-utils)
;; Local Variables:
;; byte-compile-warnings: (not obsolete)
;; coding: utf-8
;; indent-tabs-mode: nil
;; End:
;;; helm-id-utils ends here
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