1 ;;; GNU Guix --- Functional package management for GNU
2 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
4 ;;; This file is part of GNU Guix.
6 ;;; GNU Guix is free software; you can redistribute it and/or modify it
7 ;;; under the terms of the GNU General Public License as published by
8 ;;; the Free Software Foundation; either version 3 of the License, or (at
9 ;;; your option) any later version.
11 ;;; GNU Guix is distributed in the hope that it will be useful, but
12 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ;;; GNU General Public License for more details.
16 ;;; You should have received a copy of the GNU General Public License
17 ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
19 (define-module (guix build emacs-build-system)
20 #:use-module ((guix build gnu-build-system) #:prefix gnu:)
21 #:use-module (guix build utils)
22 #:use-module (guix build emacs-utils)
23 #:use-module (srfi srfi-1)
24 #:use-module (srfi srfi-26)
25 #:use-module (ice-9 rdelim)
26 #:use-module (ice-9 regex)
27 #:use-module (ice-9 match)
28 #:export (%standard-phases
33 ;; Builder-side code of the build procedure for ELPA Emacs packages.
37 ;; Directory suffix where we install ELPA packages. We avoid ".../elpa" as
38 ;; Emacs expects to find the ELPA repository 'archive-contents' file and the
40 (define %install-suffix "/share/emacs/site-lisp/guix.d")
42 (define* (build #:key outputs inputs #:allow-other-keys)
44 (let* ((emacs (string-append (assoc-ref inputs "emacs") "/bin/emacs"))
45 (out (assoc-ref outputs "out"))
46 (elpa-name-ver (store-directory->elpa-name-version out))
47 (el-dir (string-append out %install-suffix "/" elpa-name-ver))
48 (deps-dirs (emacs-inputs-directories inputs)))
50 (parameterize ((%emacs emacs))
51 (emacs-byte-compile-directory el-dir
52 (emacs-inputs-el-directories deps-dirs)))))
54 (define* (patch-el-files #:key outputs #:allow-other-keys)
55 "Substitute the absolute \"/bin/\" directory with the right location in the
56 store in '.el' files."
57 (let* ((out (assoc-ref outputs "out"))
58 (elpa-name-ver (store-directory->elpa-name-version out))
59 (el-dir (string-append out %install-suffix "/" elpa-name-ver))
60 (substitute-cmd (lambda ()
61 (substitute* (find-files "." "\\.el$")
62 (("\"/bin/(.*)\"" _ cmd)
63 (string-append "\"" (which cmd) "\""))))))
64 (with-directory-excursion el-dir
65 ;; Some old '.el' files (e.g., tex-buf.el in AUCTeX) are still encoded
66 ;; with the "ISO-8859-1" locale.
67 (unless (false-if-exception (substitute-cmd))
68 (with-fluids ((%default-port-encoding "ISO-8859-1"))
72 (define* (install #:key outputs #:allow-other-keys)
73 "Install the package contents."
74 (let* ((out (assoc-ref outputs "out"))
75 (elpa-name-ver (store-directory->elpa-name-version out))
77 (tgt-dir (string-append out %install-suffix "/" elpa-name-ver)))
78 (copy-recursively src-dir tgt-dir)
81 (define* (move-doc #:key outputs #:allow-other-keys)
82 "Move info files from the ELPA package directory to the info directory."
83 (let* ((out (assoc-ref outputs "out"))
84 (elpa-name-ver (store-directory->elpa-name-version out))
85 (el-dir (string-append out %install-suffix "/" elpa-name-ver))
86 (name-ver (store-directory->name-version out))
87 (info-dir (string-append out "/share/info/" name-ver))
88 (info-files (find-files el-dir "\\.info$")))
89 (unless (null? info-files)
91 (with-directory-excursion el-dir
92 (when (file-exists? "dir") (delete-file "dir"))
94 (copy-file f (string-append info-dir "/" (basename f)))
99 (define* (make-autoloads #:key outputs inputs #:allow-other-keys)
100 "Generate the autoloads file."
101 (let* ((emacs (string-append (assoc-ref inputs "emacs") "/bin/emacs"))
102 (out (assoc-ref outputs "out"))
103 (elpa-name-ver (store-directory->elpa-name-version out))
104 (elpa-name (package-name->name+version elpa-name-ver))
105 (el-dir (string-append out %install-suffix "/" elpa-name-ver)))
106 (parameterize ((%emacs emacs))
107 (emacs-generate-autoloads elpa-name el-dir))
110 (define (emacs-package? name)
111 "Check if NAME correspond to the name of an Emacs package."
112 (string-prefix? "emacs-" name))
114 (define (emacs-inputs inputs)
115 "Retrieve the list of Emacs packages from INPUTS."
116 (filter (match-lambda
118 (emacs-package? ((compose package-name->name+version
119 store-directory->name-version)
124 (define (emacs-inputs-directories inputs)
125 "Extract the list of Emacs package directories from INPUTS."
126 (let ((inputs (emacs-inputs inputs)))
128 (((names . directories) ...) directories))))
130 (define (emacs-inputs-el-directories dirs)
131 "Build the list of Emacs Lisp directories from the Emacs package directory
134 (string-append d %install-suffix "/"
135 (store-directory->elpa-name-version d)))
138 (define (package-name-version->elpa-name-version name-ver)
139 "Convert the Guix package NAME-VER to the corresponding ELPA name-version
140 format. Essnetially drop the prefix used in Guix."
141 (let ((name (store-directory->name-version name-ver)))
142 (if (emacs-package? name-ver)
143 (store-directory->name-version name-ver)
146 (define (store-directory->elpa-name-version store-dir)
147 "Given a store directory STORE-DIR return the part of the basename after the
148 second hyphen. This corresponds to 'name-version' as used in ELPA packages."
149 ((compose package-name-version->elpa-name-version
150 store-directory->name-version)
153 (define (store-directory->name-version store-dir)
154 "Given a store directory STORE-DIR return the part of the basename
155 after the first hyphen. This corresponds to 'name-version' of the package."
156 (let* ((base (basename store-dir)))
158 (+ 1 (string-index base #\-)))))
160 ;; from (guix utils). Should we put it in (guix build utils)?
161 (define (package-name->name+version name)
162 "Given NAME, a package name like \"foo-0.9.1b\", return two values:
163 \"foo\" and \"0.9.1b\". When the version part is unavailable, NAME and
164 #f are returned. The first hyphen followed by a digit is considered to
165 introduce the version part."
166 ;; See also `DrvName' in Nix.
169 (cut char-set-contains? char-set:digit <>))
171 (let loop ((chars (string->list name))
176 ((#\- (? number? n) rest ...)
177 (values (list->string (reverse prefix))
178 (list->string (cons n rest))))
180 (loop tail (cons head prefix))))))
182 (define %standard-phases
183 (modify-phases gnu:%standard-phases
187 (replace 'build build)
188 (add-before 'build 'install install)
189 (add-after 'install 'make-autoloads make-autoloads)
190 (add-after 'make-autoloads 'patch-el-files patch-el-files)
191 (add-after 'make-autoloads 'move-doc move-doc)))
193 (define* (emacs-build #:key inputs (phases %standard-phases)
194 #:allow-other-keys #:rest args)
195 "Build the given Emacs package, applying all of PHASES in order."
197 #:inputs inputs #:phases phases
200 ;;; emacs-build-system.scm ends here