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/.cask/ | ||
*.elc |
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(source gnu) | ||
(source melpa) | ||
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(package-file "counsel-gtags.el") |
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# counsel-gtags.el | ||
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This package is still developing. |
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;;; counsel-gtags.el --- counsel for GNU global -*- lexical-binding: t; -*- | ||
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;; Copyright (C) 2016 by Syohei YOSHIDA | ||
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;; Author: Syohei YOSHIDA <[email protected]> | ||
;; URL: https://github.com/syohex/emacs-counsel-gtags | ||
;; Version: 0.01 | ||
;; Package-Requires: ((emacs "24") (counsel "0.8.0")) | ||
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;; 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. | ||
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;; 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. | ||
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;; You should have received a copy of the GNU General Public License | ||
;; along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
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;;; Commentary: | ||
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;; Counsel for GNU global | ||
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;;; Code: | ||
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(require 'counsel) | ||
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(declare-function cygwin-convert-file-name-from-windows "cygw32.c") | ||
(declare-function cygwin-convert-file-name-to-windows "cygw32.c") | ||
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(defgroup counsel-gtags nil | ||
"counsel for GNU Global" | ||
:group 'counsel) | ||
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(defcustom counsel-gtags-ignore-case nil | ||
"" | ||
:type 'boolean) | ||
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(defcustom counsel-gtags-path-style 'root | ||
"" | ||
:type '(choice (const :tag "Root of the current project" root) | ||
(const :tag "Relative from the current directory" relative) | ||
(const :tag "Absolute Path" absolute))) | ||
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(defconst counsel-gtags--prompts | ||
'((definition . "Find Definition: ") | ||
(reference . "Find Reference: ") | ||
(pattern . "Find Pattern: ") | ||
(symbol . "Find Symbol: ") | ||
(find-file . "Find File: "))) | ||
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(defconst counsel-gtags--complete-options | ||
'((reference . "-r") | ||
(symbol . "-s") | ||
(pattern . "-g") | ||
(find-file . "-Poa"))) | ||
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(defvar counsel-gtags--context nil) | ||
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(defun counsel-gtags--select-gtags-label () | ||
(let ((labels '("default" "native" "ctags" "pygments"))) | ||
(ivy-read "GTAGSLABEL(Default: default): " labels))) | ||
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(defun counsel-gtags--generate-tags () | ||
(if (not (yes-or-no-p "File GTAGS not found. Run 'gtags'? ")) | ||
(error "Abort generating tag files.") | ||
(let* ((root (read-directory-name "Root Directory: ")) | ||
(label (counsel-gtags--select-gtags-label)) | ||
(default-directory root)) | ||
(message "gtags is generating tags....") | ||
(unless (zerop (process-file "gtags" nil nil nil "-q" | ||
(concat "--gtagslabel=" label))) | ||
(error "Faild: 'gtags -q'")) | ||
root))) | ||
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(defun counsel-gtags--root () | ||
(or (getenv "GTAGSROOT") | ||
(locate-dominating-file default-directory "GTAGS") | ||
(counsel-gtags--generate-tags))) | ||
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(defsubst counsel-gtags--windows-p () | ||
(memq system-type '(windows-nt ms-dos))) | ||
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(defun counsel-gtags--set-absolete-option-p () | ||
(or (eq counsel-gtags-path-style 'absolete) | ||
(and (counsel-gtags--windows-p) | ||
(getenv "GTAGSLIBPATH")))) | ||
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(defun counsel-gtags--command-options (type) | ||
(let ((find-file-p (eq type 'find-file)) | ||
options) | ||
(unless find-file-p | ||
(push "--result=grep" options)) | ||
(let ((opt (assoc-default type counsel-gtags--complete-options))) | ||
(when opt | ||
(push opt options))) | ||
(when (counsel-gtags--set-absolete-option-p) | ||
(push "-a" options)) | ||
(when counsel-gtags-ignore-case | ||
(push "-i" options)) | ||
(when (and current-prefix-arg (not find-file-p)) | ||
(push "-l" options)) | ||
(when (getenv "GTAGSLIBPATH") | ||
(push "-T" options)) | ||
options)) | ||
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(defun counsel-gtags--complete-candidates (string type) | ||
(let ((cmd-options (counsel-gtags--command-options type))) | ||
(push "-c" cmd-options) | ||
(push string cmd-options) | ||
(counsel--async-command | ||
(mapconcat #'shell-quote-argument (cons "global" (reverse cmd-options)) " ")) | ||
nil)) | ||
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(defun counsel-gtags--file-and-line (candidate) | ||
(if (and (counsel-gtags--windows-p) | ||
(string-match-p "\\`[a-zA-Z]:" candidate)) ;; Windows Driver letter | ||
(when (string-match "\\`\\([^:]+:[^:]+:\\):\\([^:]+\\)" candidate) | ||
(list (match-string-no-properties 1) | ||
(string-to-number (match-string-no-properties 2)))) | ||
(let ((fields (split-string candidate ":"))) | ||
(list (cl-first fields) (string-to-number (cl-second fields)))))) | ||
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(defun counsel-gtags--find-file (candidate) | ||
(with-ivy-window | ||
(swiper--cleanup) | ||
(cl-destructuring-bind (file line) (counsel-gtags--file-and-line candidate) | ||
(push (list :file file :line line) counsel-gtags--context) | ||
(find-file file) | ||
(goto-char (point-min)) | ||
(forward-line (1- line)) | ||
(back-to-indentation)))) | ||
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(defun counsel-gtags--read-tag (type) | ||
(let ((tagname (thing-at-point 'symbol)) | ||
(prompt (assoc-default type counsel-gtags--prompts)) | ||
(comp-fn (lambda (string) | ||
(counsel-gtags--complete-candidates string type)))) | ||
(ivy-read prompt comp-fn | ||
:initial-input tagname | ||
:dynamic-collection t | ||
:unwind (lambda () | ||
(counsel-delete-process) | ||
(swiper--cleanup)) | ||
:caller 'counsel-gtags--read-tag))) | ||
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(defun counsel-gtags--tag-directory () | ||
(with-temp-buffer | ||
(or (getenv "GTAGSROOT") | ||
(progn | ||
(unless (zerop (process-file "global" nil t nil "-p")) | ||
(error "GTAGS not found")) | ||
(goto-char (point-min)) | ||
(let ((dir (buffer-substring-no-properties | ||
(line-beginning-position) (line-end-position)))) | ||
(file-name-as-directory (if (eq system-type 'cygwin) | ||
(cygwin-convert-file-name-from-windows dir) | ||
dir))))))) | ||
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(defsubst counsel-gtags--construct-command (options &optional input) | ||
(mapconcat #'shell-quote-argument (append '("global") options (list input)) " ")) | ||
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(defun counsel-gtags--execute (type tagname encoding) | ||
(let* ((options (counsel-gtags--command-options type)) | ||
(cmd (counsel-gtags--construct-command (reverse options) tagname)) | ||
(default-directory default-directory) | ||
(coding-system-for-read encoding) | ||
(coding-system-for-write encoding)) | ||
(counsel--async-command cmd nil) | ||
nil)) | ||
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(defun counsel-gtags--select-file (type tagname) | ||
(let* ((tagroot (counsel-gtags--root)) | ||
(encoding buffer-file-coding-system) | ||
(comp-fn (lambda (_string) | ||
(let ((default-directory tagroot)) ;; ??? | ||
(counsel-gtags--execute type tagname encoding))))) | ||
(ivy-read "Pattern: " comp-fn | ||
:dynamic-collection t | ||
:unwind (lambda () | ||
(counsel-delete-process) | ||
(swiper--cleanup)) | ||
:action #'counsel-gtags--find-file | ||
:caller 'counsel-gtags--read-tag))) | ||
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;;;###autoload | ||
(defun counsel-gtags-find-definition (tagname) | ||
(interactive | ||
(list (counsel-gtags--read-tag 'definition))) | ||
(counsel-gtags--select-file 'definition tagname)) | ||
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;;;###autoload | ||
(defun counsel-gtags-find-reference (tagname) | ||
(interactive | ||
(list (counsel-gtags--read-tag 'reference))) | ||
(counsel-gtags--select-file 'reference tagname)) | ||
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;;;###autoload | ||
(defun counsel-gtags-find-symbol (tagname) | ||
(interactive | ||
(list (counsel-gtags--read-tag 'symbol))) | ||
(counsel-gtags--select-file 'symbol tagname)) | ||
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;;;###autoload | ||
(defun counsel-gtags-pop () | ||
(interactive) | ||
(let ((context (pop counsel-gtags--context))) | ||
(find-file (plist-get context :file)) | ||
(goto-char (point-min)) | ||
(forward-line (1- (plist-get context :line))))) | ||
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(provide 'counsel-gtags) | ||
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;;; counsel-gtags.el ends here |