summaryrefslogtreecommitdiff
path: root/build-aux/list-packages.scm
blob: d832374a9c519990427d8b39e39f64e06bc7c564 (about) (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
#!/bin/sh
exec guile -l "$0"                              \
  -c '(apply (@ (list-packages) list-packages)
             (cdr (command-line)))'
!#
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Alex Sassmannshausen <alex.sassmannshausen@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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.
;;;
;;; GNU Guix 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 GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (list-packages)
  #:use-module (guix utils)
  #:use-module (guix packages)
  #:use-module (guix licenses)
  #:use-module (guix gnu-maintenance)
  #:use-module (gnu packages)
  #:use-module (sxml simple)
  #:use-module (sxml fold)
  #:use-module (web uri)
  #:use-module (ice-9 match)
  #:use-module (srfi srfi-1)
  #:export (list-packages))

;;; Commentary:
;;;
;;; Emit an HTML representation of the packages available in GNU Guix.
;;;
;;; Code:

(define lookup-gnu-package
  (let ((gnu (official-gnu-packages)))
    (lambda (name)
      "Return the package description for GNU package NAME, or #f."
      (find (lambda (package)
              (equal? (gnu-package-name package) name))
            gnu))))

(define (list-join lst item)
  "Join the items in LST by inserting ITEM between each pair of elements."
  (let loop ((lst    lst)
             (result '()))
    (match lst
      (()
       (match (reverse result)
         (()
          '())
         ((_ rest ...)
          rest)))
      ((head tail ...)
       (loop tail
             (cons* head item result))))))

(define (package->sxml package previous description-ids remaining)
  "Return 3 values: the HTML-as-SXML for PACKAGE added to all previously
collected package output in PREVIOUS, a list of DESCRIPTION-IDS and the number
of packages still to be processed in REMAINING.  Also Introduces a call to the
JavaScript prep_pkg_descs function as part of the output of PACKAGE, every
time the length of DESCRIPTION-IDS, increasing, is 15 or when REMAINING,
decreasing, is 1."
  (define (location-url loc)
    (string-append "http://git.savannah.gnu.org/cgit/guix.git/tree/"
                   (location-file loc) "#n"
                   (number->string (location-line loc))))

  (define (source-url package)
    (let ((loc (package-location package)))
      (and loc (location-url loc))))

  (define (license package)
    (define ->sxml
      (match-lambda
       ((lst ...)
        `(div ,(map ->sxml lst)))
       ((? license? license)
        (let ((uri (license-uri license)))
          (case (and=> (and uri (string->uri uri)) uri-scheme)
            ((http https)
             `(div (a (@ (href ,uri)
                         (title "Link to the full license"))
                      ,(license-name license))))
            (else
             `(div ,(license-name license) " ("
                   ,(license-comment license) ")")))))
       (#f "")))

    (->sxml (package-license package)))

  (define (patches package)
    (define (patch-url patch)
      (string-append
       "http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/patches/"
       (basename patch)))

    (define (snippet-link snippet)
      (let ((loc (or (package-field-location package 'source)
                     (package-location package))))
        `(a (@ (href ,(location-url loc))
               (title "Link to patch snippet"))
            "snippet")))

    (and (origin? (package-source package))
         (let ((patches (origin-patches (package-source package)))
               (snippet (origin-snippet (package-source package))))
           (and (or (pair? patches) snippet)
                `(div "patches: "
                      ,(let loop ((patches patches)
                                  (number  1)
                                  (links   '()))
                         (match patches
                           (()
                            (let* ((additional (and snippet
                                                    (snippet-link snippet)))
                                   (links      (if additional
                                                   (cons additional links)
                                                   links)))
                              (list-join (reverse links) ", ")))
                           ((patch rest ...)
                            (loop rest
                                  (+ 1 number)
                                  (cons `(a (@ (href ,(patch-url patch))
                                               (title ,(string-append
                                                        "Link to "
                                                        (basename patch))))
                                            ,(number->string number))
                                        links))))))))))

  (define (status package)
    (define (url system)
      `(a (@ (href ,(string-append "http://hydra.gnu.org/job/gnu/master/"
                                   (package-full-name package) "."
                                   system))
             (title "View the status of this architecture's build at Hydra"))
          ,system))

    `(div "status: "
          ,(url "x86_64-linux") " "
          ,(url "i686-linux")))

  (define (package-logo name)
    (and=> (lookup-gnu-package name)
           gnu-package-logo))

  (define (insert-tr description-id js?)
    (define (insert-js-call description-ids)
      "Return an sxml call to prep_pkg_descs, with up to 15 elements of
description-ids as formal parameters."
      `(script (@ (type "text/javascript"))
               ,(format #f "prep_pkg_descs(~a)"
                        (string-append "'"
                                       (string-join description-ids "', '")
                                       "'"))))

    (let ((description-ids (cons description-id description-ids)))
      `(tr (td ,(if (gnu-package? package)
                    `(img (@ (src "/graphics/gnu-head-mini.png")
                             (alt "Part of GNU")
                             (title "Part of GNU")))
                    ""))
           (td (a (@ (href ,(source-url package))
                     (title "Link to the Guix package source code"))
                  ,(package-name package) " "
                  ,(package-version package)))
           (td (span ,(package-synopsis package))
               (div (@ (id ,description-id))
                    ,(match (package-logo (package-name package))
                       ((? string? url)
                        `(img (@ (src ,url)
                                 (height "35")
                                 (class "package-logo")
                                 (alt ("Logo of " ,(package-name package))))))
                       (_ #f))
                    (p ,(package-description package))
                    ,(license package)
                    (a (@ (href ,(package-home-page package))
                          (title "Link to the package's website"))
                       ,(package-home-page package))
                    ,(status package)
                    ,(patches package)
                    ,(if js?
                         (insert-js-call description-ids)
                         ""))))))

  (let ((description-id (symbol->string
                         (gensym (package-name package)))))
    (cond ((= remaining 1)              ; Last package in packages
           (values
            (reverse                              ; Fold has reversed packages
             (cons (insert-tr description-id 'js) ; Prefix final sxml
                   previous))
            '()                            ; No more work to do
            0))                            ; End of the line
          ((= (length description-ids) 15) ; Time for a JS call
           (values
            (cons (insert-tr description-id 'js)
                  previous)    ; Prefix new sxml
            '()                ; Reset description-ids
            (1- remaining)))   ; Reduce remaining
          (else                ; Insert another row, and build description-ids
           (values
            (cons (insert-tr description-id #f)
                  previous)                       ; Prefix new sxml
            (cons description-id description-ids) ; Update description-ids
            (1- remaining))))))                   ; Reduce remaining

(define (packages->sxml packages)
  "Return an HTML page as SXML describing PACKAGES."
  `(div
    (h2 "GNU Guix Package List")
    (div (@ (id "intro"))
         (div
          (img (@ (src "graphics/guix-logo.small.png")
                  (alt "GNU Guix and the GNU System")
                  (height "83"))))
         (p "This web page lists the packages currently provided by the "
            (a (@ (href "manual/guix.html#GNU-Distribution"))
               "GNU system distribution")
            " of "
            (a (@ (href "/software/guix/guix.html")) "GNU Guix") ".  "
            "Our " (a (@ (href "http://hydra.gnu.org/jobset/gnu/master"))
                      "continuous integration system")
            " shows their current build status."))
    (table (@ (id "packages"))
           (tr (th "GNU?")
               (th "Package version")
               (th "Package details"))
           ,@(fold-values package->sxml packages '() '() (length packages)))
    (a (@ (href "#intro")
          (title "Back to top.")
          (id "top"))
       "^")))


(define (insert-css)
  "Return the CSS for the list-packages page."
  (format #t
"<style>
/* license: CC0 */
a {
    transition: all 0.3s;
}
div#intro {
    margin-bottom: 2em;
}
div#intro div, div#intro p {
    padding:0.5em;
}
div#intro div {
    float:left;
}
div#intro img {
    float:left;
    padding:0.75em;
}
table#packages, table#packages tr, table#packages tbody, table#packages td, table#packages th {
    border: 0px solid black;
    clear: both;
}
table#packages tr:nth-child(even) {
    background-color: #FFF;
}
table#packages tr:nth-child(odd) {
    background-color: #EEE;
}
table#packages tr:hover, table#packages tr:focus, table#packages tr:active {
    background-color: #DDD;
}
table#packages tr:first-child, table#packages tr:first-child:hover, table#packages tr:first-child:focus, table#packages tr:first-child:active {
    background-color: #333;
    color: #fff;
}
table#packages td {
    margin:0px;
    padding:0.2em 0.5em;
}
table#packages td:first-child {
    width:10%;
    text-align:center;
}
table#packages td:nth-child(2) {
    width:30%;
}
table#packages td:last-child {
    width:60%;
}
img.package-logo {
    float: left;
    padding: 0.75em;
}
table#packages span {
    font-weight: 700;
}
table#packages span a {
    float: right;
    font-weight: 500;
}
a#top {
    position:fixed;
    right:10px;
    bottom:10px;
    font-size:150%;
    background-color:#EEE;
    padding:10px 7.5px 0 7.5px;
    text-decoration:none;
    color:#000;
    border-radius:5px;
}
a#top:hover, a#top:focus {
    background-color:#333;
    color:#fff;
}
</style>"))

(define (insert-js)
  "Return the JavaScript for the list-packages page."
  (format #t
"<script type=\"text/javascript\">
// license: CC0
function show_hide(idThing)
{
  if(document.getElementById && document.createTextNode) {
    var thing = document.getElementById(idThing);
    /* Used to change the link text, depending on whether description is
       collapsed or expanded */
    var thingLink = thing.previousSibling.lastChild.firstChild;
    if (thing) {
      if (thing.style.display == \"none\") {
        thing.style.display = \"\";
        thingLink.data = 'Collapse';
      } else {
        thing.style.display = \"none\";
        thingLink.data = 'Expand';
      }
    }
  }
}
/* Add controllers used for collapse/expansion of package descriptions */
function prep(idThing)
{
  var tdThing = document.getElementById(idThing).parentNode;
  if (tdThing) {
    var aThing = tdThing.firstChild.appendChild(document.createElement('a'));
    aThing.setAttribute('href', 'javascript:void(0)');
    aThing.setAttribute('title', 'show/hide package description');
    aThing.appendChild(document.createTextNode('Expand'));
    aThing.onclick=function(){show_hide(idThing);};
    /* aThing.onkeypress=function(){show_hide(idThing);}; */
  }
}
/* Take n element IDs, prepare them for javascript enhanced
   display and hide the IDs by default. */
function prep_pkg_descs()
{
  if(document.getElementById && document.createTextNode) {
    for(var i=0; i<arguments.length; i++) {
      prep(arguments[i])
      show_hide(arguments[i]);
    }
  }
}
</script>"))


(define (list-packages . args)
  "Return an HTML page listing all the packages found in the GNU distribution,
with gnu.org server-side include and all that."
  ;; Don't attempt to translate descriptions.
  (setlocale LC_ALL "C")

  ;; Output the page as UTF-8 since that's what the gnu.org server-side
  ;; headers claim.
  (set-port-encoding! (current-output-port) "UTF-8")

  (let ((packages (sort (fold-packages cons '())
                        (lambda (p1 p2)
                          (string<? (package-name p1) (package-name p2))))))
   (format #t "<!--#include virtual=\"/server/html5-header.html\" -->
<!-- Parent-Version: 1.70 $ -->
<title>GNU Guix - GNU Distribution - GNU Project</title>
")
   (insert-css)
   (insert-js)
   (format #t "<!--#include virtual=\"/server/banner.html\" -->")

   (sxml->xml (packages->sxml packages))
   (format #t "</div>
<!--#include virtual=\"/server/footer.html\" -->
<div id=\"footer\">

<p>Please send general FSF &amp; GNU inquiries to
<a href=\"mailto:gnu@gnu.org\">&lt;gnu@gnu.org&gt;</a>.
There are also <a href=\"/contact/\">other ways to contact</a>
the FSF.  Broken links and other corrections or suggestions can be sent
to <a href=\"mailto:bug-guix@gnu.org\">&lt;bug-guix@gnu.org&gt;</a>.</p>

<p>Copyright &copy; 2013 Free Software Foundation, Inc.</p>

<p>This page is licensed under a <a rel=\"license\"
href=\"http://creativecommons.org/licenses/by-nd/3.0/us/\">Creative
Commons Attribution-NoDerivs 3.0 United States License</a>.</p>

<p>Updated:
<!-- timestamp start -->
$Date$
<!-- timestamp end -->
</p>
</div>
</div>
</body>
</html>
"))
  )

;;; list-packages.scm ends here