This file is indexed.

/usr/share/racket/collects/pkg/db.rkt is in racket-common 6.7-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
#lang racket/base
(require racket/contract/base
         racket/format
         racket/set
         racket/path
         racket/file
         version/utils
         setup/dirs
         db/private/pre)

(provide 
 (struct-out pkg)
 (contract-out
  [current-pkg-catalog-file
   (parameter/c path-string?)]
  
  [call-with-pkgs-transaction ((-> any) . -> . any)]

  [get-catalogs (-> (listof string?))]
  [set-catalogs! ((listof string?) . -> . void?)]

  [set-pkgs! ((string? (listof (or/c pkg? string?)))
              (#:clear-other-checksums? boolean?)
              . ->* . 
              void?)]

  [get-pkgs (()
             (#:name (or/c #f string?)
                     #:catalog (or/c #f string?))
             . ->* .
             (listof pkg?))]
  [set-pkg! ((string? string? string? string? string? string?)
             (#:clear-other-checksums? boolean?)
             . ->* .
             void?)]

  [get-pkg-modules (string? string? string?
                            . -> . (listof module-path?))]
  [set-pkg-modules! (string? string? string?
                             (listof module-path?)
                             . -> . void?)]

  [get-pkg-dependencies (string? string? string?
                            . -> . (listof dep/c))]
  [set-pkg-dependencies! (string? string? string?
                                  (listof dep/c)
                                  . -> . void?)]

  [get-pkg-tags (string? string?
                            . -> . (listof string?))]
  [set-pkg-tags! (string? string? (listof string?)
                          . -> . void?)]

  [get-module-pkgs (module-path? . -> . (listof pkg?))]

  [get-pkgs-without-modules (()
                             (#:catalog string?)
                             . ->* .
                             (listof pkg?))]))

(define platform/c (or/c string? symbol? regexp?))
(define dep/c (or/c string?
                    (list/c string?)
                    (list/c string? string?)
                    (list/c string? '#:version valid-version?)
                    (list/c string? '#:platform platform/c)
                    (list/c string? '#:version valid-version? '#:platform platform/c)
                    (list/c string? '#:platform platform/c '#:version valid-version?)))

(struct pkg (name catalog author source checksum desc)
  #:transparent)

(define (prepare-catalog-table db)
  (prepare-table db
                 "catalog"
                 (~a "(id SMALLINT,"
                     " url TEXT,"
                     " pos SMALLINT)")))

(define (prepare-pkg-table db)
  (prepare-table db
                 "pkg"
                 (~a "(name TEXT,"
                     " catalog SMALLINT,"
                     " author TEXT,"
                     " source TEXT,"
                     " checksum TEXT,"
                     " desc TEXT)")
                 ;; index:
                 "(name, catalog)"))

(define (prepare-tags-table db)
  (prepare-table db
                 "tags"
                 (~a "(pkg TEXT,"
                     " catalog SMALLINT,"
                     " tag TEXT)")
                 ;; index:
                 "(pkg, catalog)"))

(define (prepare-modules-table db)
  (prepare-table db
                 "modules"
                 (~a "(name TEXT,"
                     " pkg TEXT,"
                     " catalog SMALLINT,"
                     " checksum TEXT)")
                 ;; index:
                 "(pkg, catalog, checksum)"))

(define (prepare-dependencies-table db)
  (prepare-table db
                 "dependencies"
                 (~a "(onpkg TEXT,"
                     " onversion TEXT,"
                     " onplatform TEXT,"
                     " pkg TEXT,"
                     " catalog SMALLINT,"
                     " checksum TEXT)")
                 ;; index:
                 "(pkg, catalog, checksum)"))

(define current-pkg-catalog-file
  (make-parameter (build-path
                   (find-system-path 'addon-dir)
                   (get-installation-name)
                   "pkgs"
                   "catalog.sqlite")))

(define-struct catalog-db (connection in-transaction? ready-tables))
(define current-catalog-db (make-parameter #f))

(define (call-with-pkgs-transaction proc)
  (call-with-catalog-db
   (lambda (db)
     (call-with-transaction
      (catalog-db-connection db)
      (lambda ()
        (parameterize ([current-catalog-db
                        (make-catalog-db (catalog-db-connection db)
                                         #t
                                         (make-hash))])
          (proc)))))))

(define (call-with-catalog-db proc)
  (define file (current-pkg-catalog-file))
  (define dir (path-only file))
  (when dir
    (unless (directory-exists? dir)
      (make-directory* dir)))
  (define catalog-db (current-catalog-db))
  (define db #f)
  (dynamic-wind
      (lambda ()
        (set! db (if catalog-db 
                     (catalog-db-connection catalog-db)
                     (sqlite3-connect #:database file
                                      #:mode 'create
                                      #:busy-retry-limit +inf.0))))
      (lambda () (proc (or catalog-db
                      (make-catalog-db db #f (make-hash)))))
      (lambda () 
        (unless catalog-db
          (disconnect db)))))

(define (call-with-catalog-transaction db proc)
  (if (catalog-db-in-transaction? db)
      ;; In one big transaction:
      (proc)
      ;; Not already in one big transaction:
      (call-with-transaction
       (catalog-db-connection db)
       proc)))

(define (get-pkgs #:name [name #f]
                  #:catalog [catalog #f])
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (for/list ([row (in-list
                      (apply
                       query-rows
                       (catalog-db-connection db)
                       (~a "SELECT K.name, N.url, K.author, K.source, K.checksum, K.desc"
                           " FROM pkg K, catalog N"
                           " WHERE N.id = K.catalog"
                           (if catalog
                               " AND  N.url = $1"
                               "")
                           (if name
                               (~a " AND  K.name = "
                                   (if catalog "$2" "$1"))
                               "")
                           " ORDER BY N.pos")
                       (append
                        (if catalog
                            (list catalog)
                            null)
                        (if name
                            (list name)
                            null))))])
       (pkg (vector-ref row 0)
            (vector-ref row 1)
            (vector-ref row 2)
            (vector-ref row 3)
            (vector-ref row 4)
            (vector-ref row 5))))))

(define (set-pkg! name catalog author source checksum desc
                  #:clear-other-checksums? [clear-other-checksums? (not (equal? checksum ""))])
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-modules-table db)
     (prepare-dependencies-table db)
     (call-with-catalog-transaction
      db
      (lambda ()
        (define catalog-id (url->catalog db catalog))
        (query (catalog-db-connection db)
               (~a "UPDATE pkg"
                   " SET author=$1, source=$2, checksum=$3, desc=$4"
                   " WHERE name=$5"
                   " AND   catalog=$6")
               author source checksum desc
               name catalog-id)
        (when clear-other-checksums?
          (query-exec (catalog-db-connection db)
                      (~a "DELETE FROM modules"
                          " WHERE catalog=$1 AND pkg=$2 AND checksum<>$3")
                      catalog-id
                      name
                      checksum)
          (query-exec (catalog-db-connection db)
                      (~a "DELETE FROM dependencies"
                          " WHERE catalog=$1 AND pkg=$2 AND checksum<>$3")
                      catalog-id
                      name
                      checksum))
        (void))))))

(define (get-pkg-tags name catalog)
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-tags-table db)
     (define catalog-id (url->catalog db catalog))
     (query-list (catalog-db-connection db)
                 (~a "SELECT tag FROM tags"
                     " WHERE catalog=$1"
                     "   AND pkg=$2")
                 catalog-id
                 name))))

(define (set-pkg-tags! name catalog tags)
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-tags-table db)
     (call-with-catalog-transaction
      db
      (lambda ()
        (define catalog-id (url->catalog db catalog))
        (query-exec (catalog-db-connection db)
                    (~a "DELETE FROM tags"
                        " WHERE catalog=$1"
                        "   AND pkg=$2")
                    catalog-id
                    name)
        (for ([tag (in-list tags)])
         (query (catalog-db-connection db)
                (~a "INSERT INTO tags"
                    " VALUES ($1, $2, $3)")
                name catalog-id tag)))))))

(define (get-pkg-modules name catalog checksum)
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-modules-table db)
     (define catalog-id (url->catalog db catalog))
     (map
      string->mod
      (query-list (catalog-db-connection db)
                  (~a "SELECT name FROM modules"
                      " WHERE catalog=$1"
                      "  AND pkg=$2"
                      "  AND checksum=$3")
                  catalog-id
                  name
                  checksum)))))

(define (set-pkg-modules! name catalog checksum modules)
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-modules-table db)
     (call-with-catalog-transaction
      db
      (lambda ()
        (define catalog-id (url->catalog db catalog))
        (query-exec (catalog-db-connection db)
                    (~a "DELETE FROM modules"
                        " WHERE catalog=$1"
                        "  AND pkg=$2"
                        "  AND checksum=$3")
                    catalog-id
                    name
                    checksum)
        (for ([mod (in-list modules)])
         (query (catalog-db-connection db)
                (~a "INSERT INTO modules"
                    " VALUES ($1, $2, $3, $4)")
                (mod->string mod) name catalog-id checksum)))))))

(define (get-module-pkgs mod)
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-modules-table db)
     (define rows
       (query-rows (catalog-db-connection db)
                   (~a "SELECT M.pkg, P.url, M.checksum"
                       " FROM modules M, catalog P"
                       " WHERE M.name = $1"
                       "  AND  M.catalog = P.id")
                   (mod->string mod)))
     (for/list ([row (in-list rows)])
       (pkg (vector-ref row 0)
            (vector-ref row 1)
            ""
            ""
            (vector-ref row 2)
            "")))))

(define (mod->string mp) (~s mp))
(define (string->mod str) (read (open-input-string str)))

(define (get-pkgs-without-modules #:catalog [catalog #f])
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-modules-table db)
     (define rows
       (apply
        query-rows
        (catalog-db-connection db)
        (~a "SELECT K.name, N.url, K.checksum"
            " FROM pkg K, catalog N"
            " WHERE N.id = K.catalog"
            (if catalog
                " AND  N.url = $1"
                "")
            " AND NOT EXISTS"
            " (SELECT M.name"
            "  FROM modules M"
            "  WHERE M.pkg = K.name"
            "   AND  M.catalog = K.catalog"
            "   AND  M.checksum = K.checksum)")
        (append
         (if catalog
             (list catalog)
             null))))
     (for/list ([row (in-list rows)])
       (pkg (vector-ref row 0)
            (vector-ref row 1)
            ""
            ""
            (vector-ref row 2)
            "")))))

(define (get-pkg-dependencies name catalog checksum)
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-dependencies-table db)
     (define catalog-id (url->catalog db catalog))
     (define rows
       (query-rows (catalog-db-connection db)
                   (~a "SELECT onpkg, onversion, onplatform"
                       " FROM dependencies"
                       " WHERE catalog=$1"
                       "  AND pkg=$2"
                       "  AND checksum=$3")
                   catalog-id
                   name
                   checksum))
     (for/list ([row (in-list rows)])
       (define on-pkg (vector-ref row 0))
       (define on-version (vector-ref row 1))
       (define on-platform (vector-ref row 2))
       (cons on-pkg
             (append
              (if (equal? on-version "")
                  null
                  (list '#:version on-version))
              (if (equal? on-platform "")
                  null
                  (list '#:platform (string->platform on-platform)))))))))

(define (set-pkg-dependencies! name catalog checksum dependencies)
  (define (get-keyed l k wrap)
    (define a (memq k l))
    (if a (wrap (cadr a)) ""))
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-dependencies-table db)
     (call-with-catalog-transaction
      db
      (lambda ()
        (define catalog-id (url->catalog db catalog))
        (query-exec (catalog-db-connection db)
                    (~a "DELETE FROM dependencies"
                        " WHERE catalog=$1"
                        "  AND pkg=$2"
                        "  AND checksum=$3")
                    catalog-id
                    name
                    checksum)
        (for ([dep (in-list dependencies)])
         (query (catalog-db-connection db)
                (~a "INSERT INTO dependencies"
                    " VALUES ($1, $2, $3, $4, $5, $6)")
                (cond
                 [(string? dep) dep]
                 [else (car dep)])
                (cond
                 [(string? dep) ""]
                 [(and (list? dep) (= 2 (length dep)))
                  (cadr dep)]
                 [else (get-keyed (cdr dep) '#:version values)])
                (cond
                 [(string? dep) ""]
                 [(and (list? dep) (= 2 (length dep)))
                  ""]
                 [else (get-keyed (cdr dep) '#:platform platform->string)])
                name catalog-id checksum)))))))

(define (platform->string dep) (~s dep))
(define (string->platform str) (read (open-input-string str)))

(define (get-catalogs)
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (query-list (catalog-db-connection db)
                 (~a "SELECT url FROM catalog"
                     " ORDER BY pos")))))

(define (set-catalogs! urls)
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-tags-table db)
     (prepare-modules-table db)
     (prepare-dependencies-table db)
     (call-with-catalog-transaction
      db
      (lambda ()
        (define current-url+ids
          (query-rows (catalog-db-connection db) "SELECT url, id FROM catalog"))
        (define old-urls (for/list ([old (in-list current-url+ids)])
                           (vector-ref old 0)))
        (for ([old (in-list current-url+ids)])
          (define old-url (vector-ref old 0))
          (define old-id (vector-ref old 1))
          (unless (member old-url urls)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM catalog WHERE id=$1"
                        old-id)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM pkg WHERE catalog=$1"
                        old-id)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM tags WHERE catalog=$1"
                        old-id)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM modules WHERE catalog=$1"
                        old-id)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM dependencies WHERE catalog=$1"
                        old-id)))
        (for ([new-url (in-list urls)])
          (unless (member new-url old-urls)
            (let loop ([id 0])
              (if (query-maybe-row (catalog-db-connection db)
                                   "SELECT url FROM catalog WHERE id=$1"
                                   id)
                  (loop (add1 id))
                  (query-exec (catalog-db-connection db)
                              "INSERT INTO catalog VALUES ($1, $2, 0)"
                              id
                              new-url)))))
        (for ([new-url (in-list urls)]
              [pos (in-naturals)])
          (query-exec (catalog-db-connection db)
                      (~a "UPDATE catalog"
                          " SET pos = $1"
                          " WHERE url = $2")
                      pos
                      new-url)))))))

(define (url->catalog db url)
  (query-value (catalog-db-connection db)
               "SELECT id FROM catalog WHERE url=$1"
               url))

(define (set-pkgs! url pkgs
                   #:clear-other-checksums? [clear-other-checksums? #t])
  (call-with-catalog-db
   (lambda (db)
     (prepare-catalog-table db)
     (prepare-pkg-table db)
     (prepare-modules-table db)
     (prepare-dependencies-table db)
     (call-with-catalog-transaction
      db
      (lambda ()
        (define catalog (url->catalog db url))
        (define pkg-names (for/list ([p (in-list pkgs)])
                            (if (pkg? p)
                                (pkg-name p)
                                p)))
        (define current-pkgs
          (query-list (catalog-db-connection db)
                      "SELECT name FROM pkg WHERE catalog=$1"
                      catalog))
        (define new-pkgs (list->set pkg-names))
        (define old-pkgs (list->set current-pkgs))
        (for ([old (in-list current-pkgs)])
          (unless (set-member? new-pkgs old)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM pkg WHERE catalog=$1 AND name=$2"
                        catalog
                        old)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM tags WHERE catalog=$1 AND pkg=$2"
                        catalog
                        old)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM modules WHERE catalog=$1 AND pkg=$2"
                        catalog
                        old)
            (query-exec (catalog-db-connection db)
                        "DELETE FROM dependencies WHERE catalog=$1 AND pkg=$2"
                        catalog
                        old)))
        (for ([new0 (in-list pkgs)])
          (define new (if (pkg? new0) 
                          new0
                          (pkg new0 "" "" "" "" "")))
          (when (and clear-other-checksums?
                     (not (equal? "" (pkg-checksum new))))
            (query-exec (catalog-db-connection db)
                        (~a "DELETE FROM modules"
                            " WHERE catalog=$1 AND pkg=$2 AND checksum<>$3")
                        catalog
                        (pkg-name new)
                        (pkg-checksum new))
            (query-exec (catalog-db-connection db)
                        (~a "DELETE FROM dependencies"
                            " WHERE catalog=$1 AND pkg=$2 AND checksum<>$3")
                        catalog
                        (pkg-name new)
                        (pkg-checksum new)))
          (unless (and (string? new0)
                       (set-member? old-pkgs new0))
            (if (set-member? old-pkgs (pkg-name new))
                (query-exec (catalog-db-connection db)
                            (~a "UPDATE pkg"
                                " SET author=$1, source=$2, checksum=$3, desc=$4"
                                " WHERE name=$5"
                                " AND   catalog=$6")
                            (pkg-author new)
                            (pkg-source new)
                            (pkg-checksum new)
                            (pkg-desc new)
                            (pkg-name new)
                            catalog)
                (query-exec (catalog-db-connection db)
                            "INSERT INTO pkg VALUES ($1, $2, $3, $4, $5, $6)"
                            (pkg-name new)
                            catalog
                            (pkg-author new)
                            (pkg-source new)
                            (pkg-checksum new)
                            (pkg-desc new))))))))))

(define (prepare-table db which desc [index #f])
  (define ready-tables (catalog-db-ready-tables db))
  (unless (hash-ref ready-tables which #f)
    (hash-set! ready-tables which #t)
    (when (null? 
           (query-rows (catalog-db-connection db)
                       (~a "SELECT name FROM sqlite_master"
                           " WHERE type='table' AND name='" which "'")))
      (query-exec (catalog-db-connection db)
                  (~a "CREATE TABLE " which " "
                      desc))
      (when index
        (query-exec (catalog-db-connection db)
                    (~a "CREATE INDEX " which "_index "
                        "ON " which " " index))))))