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1 | ;;; ede/linux.el --- Special project for Linux |
2 | ||
5df4f04c | 3 | ;; Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
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4 | |
5 | ;; Author: Eric M. Ludlam <eric@siege-engine.com> | |
6 | ||
7 | ;; This file is part of GNU Emacs. | |
8 | ||
9 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published by | |
11 | ;; the Free Software Foundation, either version 3 of the License, or | |
12 | ;; (at your option) any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
20 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
21 | ||
22 | ;;; Commentary: | |
23 | ;; | |
24 | ;; Provide a special project type just for Linux, cause Linux is special. | |
25 | ;; | |
26 | ;; Identifies a Linux project automatically. | |
27 | ;; Speedy ede-expand-filename based on extension. | |
28 | ;; Pre-populates the preprocessor map from lisp.h | |
29 | ;; | |
30 | ;; ToDo : | |
31 | ;; * Add "build" options. | |
32 | ;; * Add texinfo lookup options. | |
33 | ;; * Add website | |
34 | ||
35 | (require 'ede) | |
36 | (declare-function semanticdb-file-table-object "semantic/db") | |
37 | (declare-function semanticdb-needs-refresh-p "semantic/db") | |
38 | (declare-function semanticdb-refresh-table "semantic/db") | |
39 | ||
40 | ;;; Code: | |
41 | (defvar ede-linux-project-list nil | |
42 | "List of projects created by option `ede-linux-project'.") | |
43 | ||
44 | (defun ede-linux-file-existing (dir) | |
45 | "Find a Linux project in the list of Linux projects. | |
46 | DIR is the directory to search from." | |
47 | (let ((projs ede-linux-project-list) | |
48 | (ans nil)) | |
49 | (while (and projs (not ans)) | |
50 | (let ((root (ede-project-root-directory (car projs)))) | |
51 | (when (string-match (concat "^" (regexp-quote root)) dir) | |
52 | (setq ans (car projs)))) | |
53 | (setq projs (cdr projs))) | |
54 | ans)) | |
55 | ||
56 | ;;;###autoload | |
57 | (defun ede-linux-project-root (&optional dir) | |
58 | "Get the root directory for DIR." | |
59 | (when (not dir) (setq dir default-directory)) | |
60 | (let ((case-fold-search t) | |
61 | (proj (ede-linux-file-existing dir))) | |
62 | (if proj | |
63 | (ede-up-directory (file-name-directory | |
64 | (oref proj :file))) | |
65 | ;; No pre-existing project. Lets take a wild-guess if we have | |
66 | ;; an Linux project here. | |
67 | (when (string-match "linux[^/]*" dir) | |
68 | (let ((base (substring dir 0 (match-end 0)))) | |
69 | (when (file-exists-p (expand-file-name "scripts/ver_linux" base)) | |
70 | base)))))) | |
71 | ||
72 | (defun ede-linux-version (dir) | |
73 | "Find the Linux version for the Linux src in DIR." | |
74 | (let ((buff (get-buffer-create " *linux-query*"))) | |
0816d744 | 75 | (with-current-buffer buff |
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76 | (erase-buffer) |
77 | (setq default-directory (file-name-as-directory dir)) | |
67d3ffe4 | 78 | (insert-file-contents "Makefile" nil 0 512) |
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79 | (goto-char (point-min)) |
80 | (let (major minor sub) | |
81 | (re-search-forward "^VERSION *= *\\([0-9.]+\\)") | |
82 | (setq major (match-string 1)) | |
83 | (re-search-forward "^PATCHLEVEL *= *\\([0-9.]+\\)") | |
84 | (setq minor (match-string 1)) | |
85 | (re-search-forward "^SUBLEVEL *= *\\([0-9.]+\\)") | |
86 | (setq sub (match-string 1)) | |
87 | (prog1 | |
88 | (concat major "." minor "." sub) | |
89 | (kill-buffer buff) | |
90 | ))))) | |
91 | ||
92 | (defclass ede-linux-project (ede-project eieio-instance-tracker) | |
93 | ((tracking-symbol :initform 'ede-linux-project-list) | |
94 | ) | |
95 | "Project Type for the Linux source code." | |
96 | :method-invocation-order :depth-first) | |
97 | ||
98 | (defun ede-linux-load (dir &optional rootproj) | |
99 | "Return an Linux Project object if there is a match. | |
100 | Return nil if there isn't one. | |
101 | Argument DIR is the directory it is created for. | |
102 | ROOTPROJ is nil, since there is only one project." | |
103 | (or (ede-linux-file-existing dir) | |
104 | ;; Doesn't already exist, so lets make one. | |
105 | (ede-linux-project "Linux" | |
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106 | :name "Linux" |
107 | :version (ede-linux-version dir) | |
108 | :directory (file-name-as-directory dir) | |
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109 | :file (expand-file-name "scripts/ver_linux" |
110 | dir)) | |
111 | (ede-add-project-to-global-list this) | |
112 | ) | |
113 | ) | |
114 | ||
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115 | ;;;###autoload |
116 | (add-to-list 'ede-project-class-files | |
117 | (ede-project-autoload "linux" | |
118 | :name "LINUX ROOT" | |
b93e37e5 | 119 | :file 'ede/linux |
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120 | :proj-file "scripts/ver_linux" |
121 | :proj-root 'ede-linux-project-root | |
122 | :load-type 'ede-linux-load | |
123 | :class-sym 'ede-linux-project | |
124 | :new-p nil) | |
125 | t) | |
126 | ||
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127 | (defclass ede-linux-target-c (ede-target) |
128 | () | |
129 | "EDE Linux Project target for C code. | |
130 | All directories need at least one target.") | |
131 | ||
132 | (defclass ede-linux-target-misc (ede-target) | |
133 | () | |
134 | "EDE Linux Project target for Misc files. | |
135 | All directories need at least one target.") | |
136 | ||
137 | (defmethod initialize-instance ((this ede-linux-project) | |
138 | &rest fields) | |
cb85c0d8 | 139 | "Make sure the targets slot is bound." |
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140 | (call-next-method) |
141 | (unless (slot-boundp this 'targets) | |
142 | (oset this :targets nil))) | |
143 | ||
144 | ;;; File Stuff | |
145 | ;; | |
146 | (defmethod ede-project-root-directory ((this ede-linux-project) | |
147 | &optional file) | |
148 | "Return the root for THIS Linux project with file." | |
149 | (ede-up-directory (file-name-directory (oref this file)))) | |
150 | ||
151 | (defmethod ede-project-root ((this ede-linux-project)) | |
152 | "Return my root." | |
153 | this) | |
154 | ||
155 | (defmethod ede-find-subproject-for-directory ((proj ede-linux-project) | |
156 | dir) | |
157 | "Return PROJ, for handling all subdirs below DIR." | |
158 | proj) | |
159 | ||
160 | ;;; TARGET MANAGEMENT | |
161 | ;; | |
162 | (defun ede-linux-find-matching-target (class dir targets) | |
163 | "Find a target that is a CLASS and is in DIR in the list of TARGETS." | |
164 | (let ((match nil)) | |
165 | (dolist (T targets) | |
166 | (when (and (object-of-class-p T class) | |
167 | (string= (oref T :path) dir)) | |
168 | (setq match T) | |
169 | )) | |
170 | match)) | |
171 | ||
172 | (defmethod ede-find-target ((proj ede-linux-project) buffer) | |
173 | "Find an EDE target in PROJ for BUFFER. | |
174 | If one doesn't exist, create a new one for this directory." | |
175 | (let* ((ext (file-name-extension (buffer-file-name buffer))) | |
176 | (cls (cond ((not ext) | |
177 | 'ede-linux-target-misc) | |
178 | ((string-match "c\\|h" ext) | |
179 | 'ede-linux-target-c) | |
180 | (t 'ede-linux-target-misc))) | |
181 | (targets (oref proj targets)) | |
182 | (dir default-directory) | |
183 | (ans (ede-linux-find-matching-target cls dir targets)) | |
184 | ) | |
185 | (when (not ans) | |
186 | (setq ans (make-instance | |
187 | cls | |
188 | :name (file-name-nondirectory | |
189 | (directory-file-name dir)) | |
190 | :path dir | |
191 | :source nil)) | |
192 | (object-add-to-list proj :targets ans) | |
193 | ) | |
194 | ans)) | |
195 | ||
196 | ;;; UTILITIES SUPPORT. | |
197 | ;; | |
198 | (defmethod ede-preprocessor-map ((this ede-linux-target-c)) | |
199 | "Get the pre-processor map for Linux C code. | |
200 | All files need the macros from lisp.h!" | |
201 | (require 'semantic/db) | |
202 | (let* ((proj (ede-target-parent this)) | |
203 | (root (ede-project-root proj)) | |
204 | (versionfile (ede-expand-filename root "include/linux/version.h")) | |
205 | (table (when (and versionfile (file-exists-p versionfile)) | |
206 | (semanticdb-file-table-object versionfile))) | |
207 | (filemap '( ("__KERNEL__" . "") | |
208 | )) | |
209 | ) | |
210 | (when table | |
211 | (when (semanticdb-needs-refresh-p table) | |
212 | (semanticdb-refresh-table table)) | |
213 | (setq filemap (append filemap (oref table lexical-table))) | |
214 | ) | |
215 | filemap | |
216 | )) | |
217 | ||
218 | (defun ede-linux-file-exists-name (name root subdir) | |
219 | "Return a file name if NAME exists under ROOT with SUBDIR in between." | |
220 | (let ((F (expand-file-name name (expand-file-name subdir root)))) | |
221 | (when (file-exists-p F) F))) | |
222 | ||
223 | (defmethod ede-expand-filename-impl ((proj ede-linux-project) name) | |
224 | "Within this project PROJ, find the file NAME. | |
225 | Knows about how the Linux source tree is organized." | |
226 | (let* ((ext (file-name-extension name)) | |
227 | (root (ede-project-root proj)) | |
228 | (dir (ede-project-root-directory root)) | |
229 | (F (cond | |
230 | ((not ext) nil) | |
231 | ((string-match "h" ext) | |
232 | (or (ede-linux-file-exists-name name dir "") | |
233 | (ede-linux-file-exists-name name dir "include")) | |
234 | ) | |
235 | ((string-match "txt" ext) | |
236 | (ede-linux-file-exists-name name dir "Documentation")) | |
237 | (t nil))) | |
238 | ) | |
239 | (or F (call-next-method)))) | |
240 | ||
241 | (provide 'ede/linux) | |
242 | ||
243 | ;; Local variables: | |
244 | ;; generated-autoload-file: "loaddefs.el" | |
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245 | ;; generated-autoload-load-name: "ede/linux" |
246 | ;; End: | |
247 | ||
248 | ;;; ede/linux.el ends here |