392 lines
16 KiB
EmacsLisp
392 lines
16 KiB
EmacsLisp
;;; helm-locate.el --- helm interface for locate. -*- lexical-binding: t -*-
|
||
|
||
;; Copyright (C) 2012 ~ 2016 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/>.
|
||
|
||
;; NOTE for WINDOZE users:
|
||
;; You have to install Everything with his command line interface here:
|
||
;; http://www.voidtools.com/download.php
|
||
|
||
;;; Code:
|
||
|
||
(require 'cl-lib)
|
||
(require 'helm)
|
||
(require 'helm-types)
|
||
(require 'helm-help)
|
||
|
||
|
||
(defgroup helm-locate nil
|
||
"Locate related Applications and libraries for Helm."
|
||
:group 'helm)
|
||
|
||
(defcustom helm-locate-db-file-regexp "m?locate\.db$"
|
||
"Default regexp to match locate database.
|
||
If nil Search in all files."
|
||
:type 'string
|
||
:group 'helm-locate)
|
||
|
||
(defcustom helm-ff-locate-db-filename "locate.db"
|
||
"The basename of the locatedb file you use locally in your directories.
|
||
When this is set and `helm' find such a file in the directory from
|
||
where you launch locate, it will use this file and will not prompt you
|
||
for a db file.
|
||
Note that this happen only when locate is launched with a prefix arg."
|
||
:group 'helm-locate
|
||
:type 'string)
|
||
|
||
(defcustom helm-locate-command nil
|
||
"A list of arguments for locate program.
|
||
Normally the default value should work on any system.
|
||
|
||
If nil it will be calculated when `helm-locate' startup
|
||
with these default values for different systems:
|
||
|
||
Gnu/linux: \"locate %s -e --regex %s\"
|
||
berkeley-unix: \"locate %s %s\"
|
||
windows-nt: \"es %s %s\"
|
||
Others: \"locate %s %s\"
|
||
|
||
This string will be passed to format so it should end with `%s'.
|
||
The first format spec is used for the \"-i\" value of locate/es,
|
||
So don't set it directly but use `helm-locate-case-fold-search'
|
||
for this.
|
||
The \"-r\" option must be the last option, however if not specified you will
|
||
be able to specify it during helm invocation by prefixing the pattern
|
||
you enter with \"-r\"."
|
||
:type 'string
|
||
:group 'helm-locate)
|
||
|
||
(defcustom helm-locate-create-db-command
|
||
"updatedb -l 0 -o %s -U %s"
|
||
"Command used to create a locale locate db file."
|
||
:type 'string
|
||
:group 'helm-locate)
|
||
|
||
(defcustom helm-locate-case-fold-search helm-case-fold-search
|
||
"It have the same meaning as `helm-case-fold-search'.
|
||
The -i option of locate will be used depending of value of
|
||
`helm-pattern' when this is set to 'smart.
|
||
When nil \"-i\" will not be used at all.
|
||
and when non--nil it will always be used.
|
||
NOTE: the -i option of the \"es\" command used on windows does
|
||
the opposite of \"locate\" command."
|
||
:group 'helm-locate
|
||
:type 'symbol)
|
||
|
||
(defcustom helm-locate-fuzzy-match nil
|
||
"Enable fuzzy matching in `helm-locate'."
|
||
:group 'helm-locate
|
||
:type 'boolean)
|
||
|
||
(defcustom helm-locate-project-list nil
|
||
"A list of directories, your projects.
|
||
When set, allow browsing recursively files in all
|
||
directories of this list with `helm-projects-find-files'."
|
||
:group 'helm-locate
|
||
:type '(repeat string))
|
||
|
||
|
||
(defvar helm-generic-files-map
|
||
(let ((map (make-sparse-keymap)))
|
||
(set-keymap-parent map helm-map)
|
||
(define-key map (kbd "C-]") 'helm-ff-run-toggle-basename)
|
||
(define-key map (kbd "C-s") 'helm-ff-run-grep)
|
||
(define-key map (kbd "M-g s") 'helm-ff-run-grep)
|
||
(define-key map (kbd "M-g z") 'helm-ff-run-zgrep)
|
||
(define-key map (kbd "M-g p") 'helm-ff-run-pdfgrep)
|
||
(define-key map (kbd "C-c g") 'helm-ff-run-gid)
|
||
(define-key map (kbd "M-R") 'helm-ff-run-rename-file)
|
||
(define-key map (kbd "M-C") 'helm-ff-run-copy-file)
|
||
(define-key map (kbd "M-B") 'helm-ff-run-byte-compile-file)
|
||
(define-key map (kbd "M-L") 'helm-ff-run-load-file)
|
||
(define-key map (kbd "M-S") 'helm-ff-run-symlink-file)
|
||
(define-key map (kbd "M-H") 'helm-ff-run-hardlink-file)
|
||
(define-key map (kbd "M-D") 'helm-ff-run-delete-file)
|
||
(define-key map (kbd "C-=") 'helm-ff-run-ediff-file)
|
||
(define-key map (kbd "C-c =") 'helm-ff-run-ediff-merge-file)
|
||
(define-key map (kbd "C-c o") 'helm-ff-run-switch-other-window)
|
||
(define-key map (kbd "C-c C-o") 'helm-ff-run-switch-other-frame)
|
||
(define-key map (kbd "M-i") 'helm-ff-properties-persistent)
|
||
(define-key map (kbd "C-c C-x") 'helm-ff-run-open-file-externally)
|
||
(define-key map (kbd "C-c X") 'helm-ff-run-open-file-with-default-tool)
|
||
(define-key map (kbd "M-.") 'helm-ff-run-etags)
|
||
(define-key map (kbd "C-w") 'helm-yank-text-at-point)
|
||
(define-key map (kbd "C-c @") 'helm-ff-run-insert-org-link)
|
||
map)
|
||
"Generic Keymap for files.")
|
||
|
||
|
||
(defface helm-locate-finish
|
||
'((t (:foreground "Green")))
|
||
"Face used in mode line when locate process is finish."
|
||
:group 'helm-locate)
|
||
|
||
|
||
(defun helm-ff-find-locatedb (&optional from-ff)
|
||
"Try to find if a local locatedb file is available.
|
||
The search is done in `helm-ff-default-directory' or
|
||
fall back to `default-directory' if FROM-FF is nil."
|
||
(when helm-ff-locate-db-filename
|
||
(cond ((and helm-ff-default-directory
|
||
from-ff
|
||
(file-exists-p (expand-file-name
|
||
helm-ff-locate-db-filename
|
||
helm-ff-default-directory))
|
||
(expand-file-name
|
||
helm-ff-locate-db-filename
|
||
helm-ff-default-directory)))
|
||
((and (not from-ff)
|
||
(file-exists-p (expand-file-name
|
||
helm-ff-locate-db-filename
|
||
default-directory))
|
||
(expand-file-name
|
||
helm-ff-locate-db-filename
|
||
default-directory))))))
|
||
|
||
|
||
(defun helm-locate-create-db-default-function (db-name directory)
|
||
"Default function used to create a locale locate db file.
|
||
Argument DB-NAME name of the db file.
|
||
Argument DIRECTORY root of file system subtree to scan."
|
||
(format helm-locate-create-db-command db-name directory))
|
||
|
||
(defvar helm-locate-create-db-function
|
||
#'helm-locate-create-db-default-function
|
||
"Function used to create a locale locate db file.
|
||
It should receive the same arguments as
|
||
`helm-locate-create-db-default-function'.")
|
||
|
||
(defun helm-locate-1 (&optional localdb init from-ff default)
|
||
"Generic function to run Locate.
|
||
Prefix arg LOCALDB when (4) search and use a local locate db file when it
|
||
exists or create it, when (16) force update of existing db file
|
||
even if exists.
|
||
It have no effect when locate command is 'es'.
|
||
INIT is a string to use as initial input in prompt.
|
||
See `helm-locate-with-db' and `helm-locate'."
|
||
(require 'helm-mode)
|
||
(helm-locate-set-command)
|
||
(let ((pfn (lambda (candidate)
|
||
(if (file-directory-p candidate)
|
||
(message "Error: The locate Db should be a file")
|
||
(if (= (shell-command
|
||
(funcall helm-locate-create-db-function
|
||
candidate
|
||
helm-ff-default-directory))
|
||
0)
|
||
(message "New locatedb file `%s' created" candidate)
|
||
(error "Failed to create locatedb file `%s'" candidate)))))
|
||
(locdb (and localdb
|
||
(not (string-match "^es" helm-locate-command))
|
||
(or (and (equal '(4) localdb)
|
||
(helm-ff-find-locatedb from-ff))
|
||
(helm-read-file-name
|
||
"Create Locate Db file: "
|
||
:initial-input (expand-file-name "locate.db"
|
||
(or helm-ff-default-directory
|
||
default-directory))
|
||
:preselect helm-locate-db-file-regexp
|
||
:test (lambda (x)
|
||
(if helm-locate-db-file-regexp
|
||
;; Select only locate db files and directories
|
||
;; to allow navigation.
|
||
(or (string-match
|
||
helm-locate-db-file-regexp x)
|
||
(file-directory-p x))
|
||
x)))))))
|
||
(when (and locdb (or (equal localdb '(16))
|
||
(not (file-exists-p locdb))))
|
||
(funcall pfn locdb))
|
||
(helm-locate-with-db (and localdb locdb) init default)))
|
||
|
||
(defun helm-locate-set-command ()
|
||
"Setup `helm-locate-command' if not already defined."
|
||
(unless helm-locate-command
|
||
(setq helm-locate-command
|
||
(cl-case system-type
|
||
(gnu/linux "locate %s -e --regex %s")
|
||
(berkeley-unix "locate %s %s")
|
||
(windows-nt "es %s %s")
|
||
(t "locate %s %s")))))
|
||
|
||
(defvar helm-file-name-history nil)
|
||
(defun helm-locate-with-db (&optional db initial-input default)
|
||
"Run locate -d DB.
|
||
If DB is not given or nil use locate without -d option.
|
||
Argument DB can be given as a string or list of db files.
|
||
Argument INITIAL-INPUT is a string to use as initial-input.
|
||
See also `helm-locate'."
|
||
(require 'helm-files)
|
||
(when (and db (stringp db)) (setq db (list db)))
|
||
(helm-locate-set-command)
|
||
(let ((helm-locate-command
|
||
(if db
|
||
(replace-regexp-in-string
|
||
"locate"
|
||
(format "locate -d %s"
|
||
(mapconcat 'identity
|
||
;; Remove eventually
|
||
;; marked directories by error.
|
||
(cl-loop for i in db
|
||
unless (file-directory-p i)
|
||
collect i) ":"))
|
||
helm-locate-command)
|
||
helm-locate-command)))
|
||
(setq helm-file-name-history (mapcar 'helm-basename file-name-history))
|
||
(helm :sources 'helm-source-locate
|
||
:buffer "*helm locate*"
|
||
:ff-transformer-show-only-basename nil
|
||
:input initial-input
|
||
:default default
|
||
:history 'helm-file-name-history)))
|
||
|
||
(defun helm-locate-init ()
|
||
"Initialize async locate process for `helm-source-locate'."
|
||
(let* ((locate-is-es (string-match "\\`es" helm-locate-command))
|
||
(real-locate (string-match "\\`locate" helm-locate-command))
|
||
(case-sensitive-flag (if locate-is-es "-i" ""))
|
||
(ignore-case-flag (if (or locate-is-es
|
||
(not real-locate)) "" "-i"))
|
||
(args (split-string helm-pattern " "))
|
||
(cmd (format helm-locate-command
|
||
(cl-case helm-locate-case-fold-search
|
||
(smart (let ((case-fold-search nil))
|
||
(if (string-match "[[:upper:]]" helm-pattern)
|
||
case-sensitive-flag
|
||
ignore-case-flag)))
|
||
(t (if helm-locate-case-fold-search
|
||
ignore-case-flag
|
||
case-sensitive-flag)))
|
||
(concat
|
||
;; The pattern itself.
|
||
(shell-quote-argument (car args)) " "
|
||
;; Possible locate args added
|
||
;; after pattern, don't quote them.
|
||
(mapconcat 'identity (cdr args) " ")))))
|
||
(helm-log "Starting helm-locate process")
|
||
(helm-log "Command line used was:\n\n%s"
|
||
(concat ">>> " (propertize cmd 'face 'font-lock-comment-face) "\n\n"))
|
||
(prog1
|
||
(start-process-shell-command
|
||
"locate-process" helm-buffer
|
||
cmd)
|
||
(set-process-sentinel
|
||
(get-buffer-process helm-buffer)
|
||
(lambda (process event)
|
||
(let* ((err (process-exit-status process))
|
||
(noresult (= err 1)))
|
||
(cond (noresult
|
||
(with-helm-buffer
|
||
(unless (cdr helm-sources)
|
||
(insert (concat "* Exit with code 1, no result found,"
|
||
" command line was:\n\n "
|
||
cmd)))))
|
||
((string= event "finished\n")
|
||
(with-helm-window
|
||
(setq mode-line-format
|
||
'(" " mode-line-buffer-identification " "
|
||
(:eval (format "L%s" (helm-candidate-number-at-point))) " "
|
||
(:eval (propertize
|
||
(format "[Locate process finished - (%s results)]"
|
||
(max (1- (count-lines
|
||
(point-min) (point-max)))
|
||
0))
|
||
'face 'helm-locate-finish))))
|
||
(force-mode-line-update)))
|
||
(t
|
||
(helm-log "Error: Locate %s"
|
||
(replace-regexp-in-string "\n" "" event))))))))))
|
||
|
||
(defclass helm-locate-source (helm-source-async helm-type-file)
|
||
((init :initform 'helm-locate-set-command)
|
||
(candidates-process :initform 'helm-locate-init)
|
||
(requires-pattern :initform 3)
|
||
(history :initform 'helm-file-name-history)
|
||
(persistent-action :initform 'helm-ff-kill-or-find-buffer-fname)
|
||
(candidate-number-limit :initform 9999)))
|
||
|
||
(defvar helm-source-locate
|
||
(helm-make-source "Locate" 'helm-locate-source
|
||
:pattern-transformer 'helm-locate-pattern-transformer))
|
||
|
||
(defun helm-locate-pattern-transformer (pattern)
|
||
(if helm-locate-fuzzy-match
|
||
(cond ((string-match
|
||
" " (replace-regexp-in-string " -b" "" pattern)) pattern)
|
||
((string-match "\\([^ ]*\\) -b" pattern)
|
||
(concat (helm--mapconcat-pattern
|
||
(match-string 1 pattern)) " -b"))
|
||
(t (helm--mapconcat-pattern pattern)))
|
||
pattern))
|
||
|
||
(defun helm-locate-find-dbs-in-projects (&optional update)
|
||
(let* ((pfn (lambda (candidate directory)
|
||
(unless (= (shell-command
|
||
(funcall helm-locate-create-db-function
|
||
candidate
|
||
directory))
|
||
0)
|
||
(error "Failed to create locatedb file `%s'" candidate)))))
|
||
(cl-loop for p in helm-locate-project-list
|
||
for db = (expand-file-name
|
||
helm-ff-locate-db-filename
|
||
(file-name-as-directory p))
|
||
if (and (null update) (file-exists-p db))
|
||
collect db
|
||
else do (funcall pfn db p)
|
||
and collect db)))
|
||
|
||
;;;###autoload
|
||
(defun helm-projects-find-files (update)
|
||
"Find files with locate in `helm-locate-project-list'.
|
||
With a prefix arg refresh the database in each project."
|
||
(interactive "P")
|
||
(helm-locate-set-command)
|
||
(cl-assert (and (string-match-p "\\`locate" helm-locate-command)
|
||
(executable-find "updatedb"))
|
||
nil "Unsupported locate version")
|
||
(let ((dbs (helm-locate-find-dbs-in-projects update)))
|
||
(if dbs
|
||
(helm-locate-with-db dbs)
|
||
(user-error "No projects found, please setup `helm-locate-project-list'"))))
|
||
|
||
;;;###autoload
|
||
(defun helm-locate (arg)
|
||
"Preconfigured `helm' for Locate.
|
||
Note: you can add locate options after entering pattern.
|
||
See 'man locate' for valid options and also `helm-locate-command'.
|
||
|
||
You can specify a local database with prefix argument ARG.
|
||
With two prefix arg, refresh the current local db or create it
|
||
if it doesn't exists.
|
||
|
||
To create a user specific db, use
|
||
\"updatedb -l 0 -o db_path -U directory\".
|
||
Where db_path is a filename matched by
|
||
`helm-locate-db-file-regexp'."
|
||
(interactive "P")
|
||
(setq helm-ff-default-directory default-directory)
|
||
(helm-locate-1 arg nil nil (thing-at-point 'filename)))
|
||
|
||
(provide 'helm-locate)
|
||
|
||
;; Local Variables:
|
||
;; byte-compile-warnings: (not cl-functions obsolete)
|
||
;; coding: utf-8
|
||
;; indent-tabs-mode: nil
|
||
;; End:
|
||
|
||
;;; helm-locate.el ends here
|