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tangled.org
1package db
2
3import (
4 "context"
5 "database/sql"
6 "fmt"
7 "log"
8 "reflect"
9 "strings"
10
11 _ "github.com/mattn/go-sqlite3"
12)
13
14type DB struct {
15 *sql.DB
16}
17
18type Execer interface {
19 Query(query string, args ...any) (*sql.Rows, error)
20 QueryContext(ctx context.Context, query string, args ...any) (*sql.Rows, error)
21 QueryRow(query string, args ...any) *sql.Row
22 QueryRowContext(ctx context.Context, query string, args ...any) *sql.Row
23 Exec(query string, args ...any) (sql.Result, error)
24 ExecContext(ctx context.Context, query string, args ...any) (sql.Result, error)
25 Prepare(query string) (*sql.Stmt, error)
26 PrepareContext(ctx context.Context, query string) (*sql.Stmt, error)
27}
28
29func Make(dbPath string) (*DB, error) {
30 // https://github.com/mattn/go-sqlite3#connection-string
31 opts := []string{
32 "_foreign_keys=1",
33 "_journal_mode=WAL",
34 "_synchronous=NORMAL",
35 "_auto_vacuum=incremental",
36 }
37
38 db, err := sql.Open("sqlite3", dbPath+"?"+strings.Join(opts, "&"))
39 if err != nil {
40 return nil, err
41 }
42
43 ctx := context.Background()
44
45 conn, err := db.Conn(ctx)
46 if err != nil {
47 return nil, err
48 }
49 defer conn.Close()
50
51 _, err = conn.ExecContext(ctx, `
52 create table if not exists registrations (
53 id integer primary key autoincrement,
54 domain text not null unique,
55 did text not null,
56 secret text not null,
57 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
58 registered text
59 );
60 create table if not exists public_keys (
61 id integer primary key autoincrement,
62 did text not null,
63 name text not null,
64 key text not null,
65 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
66 unique(did, name, key)
67 );
68 create table if not exists repos (
69 id integer primary key autoincrement,
70 did text not null,
71 name text not null,
72 knot text not null,
73 rkey text not null,
74 at_uri text not null unique,
75 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
76 unique(did, name, knot, rkey)
77 );
78 create table if not exists collaborators (
79 id integer primary key autoincrement,
80 did text not null,
81 repo integer not null,
82 foreign key (repo) references repos(id) on delete cascade
83 );
84 create table if not exists follows (
85 user_did text not null,
86 subject_did text not null,
87 rkey text not null,
88 followed_at text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
89 primary key (user_did, subject_did),
90 check (user_did <> subject_did)
91 );
92 create table if not exists issues (
93 id integer primary key autoincrement,
94 owner_did text not null,
95 repo_at text not null,
96 issue_id integer not null,
97 title text not null,
98 body text not null,
99 open integer not null default 1,
100 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
101 issue_at text,
102 unique(repo_at, issue_id),
103 foreign key (repo_at) references repos(at_uri) on delete cascade
104 );
105 create table if not exists comments (
106 id integer primary key autoincrement,
107 owner_did text not null,
108 issue_id integer not null,
109 repo_at text not null,
110 comment_id integer not null,
111 comment_at text not null,
112 body text not null,
113 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
114 unique(issue_id, comment_id),
115 foreign key (repo_at, issue_id) references issues(repo_at, issue_id) on delete cascade
116 );
117 create table if not exists pulls (
118 -- identifiers
119 id integer primary key autoincrement,
120 pull_id integer not null,
121
122 -- at identifiers
123 repo_at text not null,
124 owner_did text not null,
125 rkey text not null,
126 pull_at text,
127
128 -- content
129 title text not null,
130 body text not null,
131 target_branch text not null,
132 state integer not null default 0 check (state in (0, 1, 2)), -- open, merged, closed
133
134 -- meta
135 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
136
137 -- constraints
138 unique(repo_at, pull_id),
139 foreign key (repo_at) references repos(at_uri) on delete cascade
140 );
141
142 -- every pull must have atleast 1 submission: the initial submission
143 create table if not exists pull_submissions (
144 -- identifiers
145 id integer primary key autoincrement,
146 pull_id integer not null,
147
148 -- at identifiers
149 repo_at text not null,
150
151 -- content, these are immutable, and require a resubmission to update
152 round_number integer not null default 0,
153 patch text,
154
155 -- meta
156 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
157
158 -- constraints
159 unique(repo_at, pull_id, round_number),
160 foreign key (repo_at, pull_id) references pulls(repo_at, pull_id) on delete cascade
161 );
162
163 create table if not exists pull_comments (
164 -- identifiers
165 id integer primary key autoincrement,
166 pull_id integer not null,
167 submission_id integer not null,
168
169 -- at identifiers
170 repo_at text not null,
171 owner_did text not null,
172 comment_at text not null,
173
174 -- content
175 body text not null,
176
177 -- meta
178 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
179
180 -- constraints
181 foreign key (repo_at, pull_id) references pulls(repo_at, pull_id) on delete cascade,
182 foreign key (submission_id) references pull_submissions(id) on delete cascade
183 );
184
185 create table if not exists _jetstream (
186 id integer primary key autoincrement,
187 last_time_us integer not null
188 );
189
190 create table if not exists repo_issue_seqs (
191 repo_at text primary key,
192 next_issue_id integer not null default 1
193 );
194
195 create table if not exists repo_pull_seqs (
196 repo_at text primary key,
197 next_pull_id integer not null default 1
198 );
199
200 create table if not exists stars (
201 id integer primary key autoincrement,
202 starred_by_did text not null,
203 repo_at text not null,
204 rkey text not null,
205 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
206 foreign key (repo_at) references repos(at_uri) on delete cascade,
207 unique(starred_by_did, repo_at)
208 );
209
210 create table if not exists reactions (
211 id integer primary key autoincrement,
212 reacted_by_did text not null,
213 thread_at text not null,
214 kind text not null,
215 rkey text not null,
216 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
217 unique(reacted_by_did, thread_at, kind)
218 );
219
220 create table if not exists emails (
221 id integer primary key autoincrement,
222 did text not null,
223 email text not null,
224 verified integer not null default 0,
225 verification_code text not null,
226 last_sent text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
227 is_primary integer not null default 0,
228 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
229 unique(did, email)
230 );
231
232 create table if not exists artifacts (
233 -- id
234 id integer primary key autoincrement,
235 did text not null,
236 rkey text not null,
237
238 -- meta
239 repo_at text not null,
240 tag binary(20) not null,
241 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
242
243 -- data
244 blob_cid text not null,
245 name text not null,
246 size integer not null default 0,
247 mimetype string not null default "*/*",
248
249 -- constraints
250 unique(did, rkey), -- record must be unique
251 unique(repo_at, tag, name), -- for a given tag object, each file must be unique
252 foreign key (repo_at) references repos(at_uri) on delete cascade
253 );
254
255 create table if not exists profile (
256 -- id
257 id integer primary key autoincrement,
258 did text not null,
259
260 -- data
261 description text not null,
262 include_bluesky integer not null default 0,
263 location text,
264
265 -- constraints
266 unique(did)
267 );
268 create table if not exists profile_links (
269 -- id
270 id integer primary key autoincrement,
271 did text not null,
272
273 -- data
274 link text not null,
275
276 -- constraints
277 foreign key (did) references profile(did) on delete cascade
278 );
279 create table if not exists profile_stats (
280 -- id
281 id integer primary key autoincrement,
282 did text not null,
283
284 -- data
285 kind text not null check (kind in (
286 "merged-pull-request-count",
287 "closed-pull-request-count",
288 "open-pull-request-count",
289 "open-issue-count",
290 "closed-issue-count",
291 "repository-count"
292 )),
293
294 -- constraints
295 foreign key (did) references profile(did) on delete cascade
296 );
297 create table if not exists profile_pinned_repositories (
298 -- id
299 id integer primary key autoincrement,
300 did text not null,
301
302 -- data
303 at_uri text not null,
304
305 -- constraints
306 unique(did, at_uri),
307 foreign key (did) references profile(did) on delete cascade,
308 foreign key (at_uri) references repos(at_uri) on delete cascade
309 );
310
311 create table if not exists oauth_requests (
312 id integer primary key autoincrement,
313 auth_server_iss text not null,
314 state text not null,
315 did text not null,
316 handle text not null,
317 pds_url text not null,
318 pkce_verifier text not null,
319 dpop_auth_server_nonce text not null,
320 dpop_private_jwk text not null
321 );
322
323 create table if not exists oauth_sessions (
324 id integer primary key autoincrement,
325 did text not null,
326 handle text not null,
327 pds_url text not null,
328 auth_server_iss text not null,
329 access_jwt text not null,
330 refresh_jwt text not null,
331 dpop_pds_nonce text,
332 dpop_auth_server_nonce text not null,
333 dpop_private_jwk text not null,
334 expiry text not null
335 );
336
337 create table if not exists punchcard (
338 did text not null,
339 date text not null, -- yyyy-mm-dd
340 count integer,
341 primary key (did, date)
342 );
343
344 create table if not exists spindles (
345 id integer primary key autoincrement,
346 owner text not null,
347 instance text not null,
348 verified text, -- time of verification
349 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
350
351 unique(owner, instance)
352 );
353
354 create table if not exists spindle_members (
355 -- identifiers for the record
356 id integer primary key autoincrement,
357 did text not null,
358 rkey text not null,
359
360 -- data
361 instance text not null,
362 subject text not null,
363 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
364
365 -- constraints
366 unique (did, instance, subject)
367 );
368
369 create table if not exists pipelines (
370 -- identifiers
371 id integer primary key autoincrement,
372 knot text not null,
373 rkey text not null,
374
375 repo_owner text not null,
376 repo_name text not null,
377
378 -- every pipeline must be associated with exactly one commit
379 sha text not null check (length(sha) = 40),
380 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
381
382 -- trigger data
383 trigger_id integer not null,
384
385 unique(knot, rkey),
386 foreign key (trigger_id) references triggers(id) on delete cascade
387 );
388
389 create table if not exists triggers (
390 -- primary key
391 id integer primary key autoincrement,
392
393 -- top-level fields
394 kind text not null,
395
396 -- pushTriggerData fields
397 push_ref text,
398 push_new_sha text check (length(push_new_sha) = 40),
399 push_old_sha text check (length(push_old_sha) = 40),
400
401 -- pullRequestTriggerData fields
402 pr_source_branch text,
403 pr_target_branch text,
404 pr_source_sha text check (length(pr_source_sha) = 40),
405 pr_action text
406 );
407
408 create table if not exists pipeline_statuses (
409 -- identifiers
410 id integer primary key autoincrement,
411 spindle text not null,
412 rkey text not null,
413
414 -- referenced pipeline. these form the (did, rkey) pair
415 pipeline_knot text not null,
416 pipeline_rkey text not null,
417
418 -- content
419 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
420 workflow text not null,
421 status text not null,
422 error text,
423 exit_code integer not null default 0,
424
425 unique (spindle, rkey),
426 foreign key (pipeline_knot, pipeline_rkey)
427 references pipelines (knot, rkey)
428 on delete cascade
429 );
430
431 create table if not exists repo_languages (
432 -- identifiers
433 id integer primary key autoincrement,
434
435 -- repo identifiers
436 repo_at text not null,
437 ref text not null,
438 is_default_ref integer not null default 0,
439
440 -- language breakdown
441 language text not null,
442 bytes integer not null check (bytes >= 0),
443
444 unique(repo_at, ref, language)
445 );
446
447 create table if not exists signups_inflight (
448 id integer primary key autoincrement,
449 email text not null unique,
450 invite_code text not null,
451 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
452 );
453
454 create table if not exists strings (
455 -- identifiers
456 did text not null,
457 rkey text not null,
458
459 -- content
460 filename text not null,
461 description text,
462 content text not null,
463 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
464 edited text,
465
466 primary key (did, rkey)
467 );
468
469 create table if not exists label_definitions (
470 -- identifiers
471 id integer primary key autoincrement,
472 did text not null,
473 rkey text not null,
474 at_uri text generated always as ('at://' || did || '/' || 'sh.tangled.label.definition' || '/' || rkey) stored,
475
476 -- content
477 name text not null,
478 value_type text not null check (value_type in (
479 "null",
480 "boolean",
481 "integer",
482 "string"
483 )),
484 value_format text not null default "any",
485 value_enum text, -- comma separated list
486 scope text not null,
487 color text,
488 multiple integer not null default 0,
489 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
490
491 -- constraints
492 unique (did, rkey)
493 unique (at_uri)
494 );
495
496 -- ops are flattened, a record may contain several additions and deletions, but the table will include one row per add/del
497 create table if not exists label_ops (
498 -- identifiers
499 id integer primary key autoincrement,
500 did text not null,
501 rkey text not null,
502 at_uri text generated always as ('at://' || did || '/' || 'sh.tangled.label.op' || '/' || rkey) stored,
503
504 -- content
505 subject text not null,
506 operation text not null check (operation in ("add", "del")),
507 operand_key text not null,
508 operand_value text not null,
509 -- we need two time values: performed is declared by the user, indexed is calculated by the av
510 performed text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
511 indexed text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
512
513 -- constraints
514 -- traditionally (did, rkey) pair should be unique, but not in this case
515 -- operand_key should reference a label definition
516 foreign key (operand_key) references label_definitions (at_uri) on delete cascade,
517 unique (did, rkey, subject, operand_key, operand_value)
518 );
519
520 create table if not exists repo_labels (
521 -- identifiers
522 id integer primary key autoincrement,
523
524 -- repo identifiers
525 repo_at text not null,
526
527 -- label to subscribe to
528 label_at text not null,
529
530 unique (repo_at, label_at),
531 foreign key (label_at) references label_definitions (at_uri)
532 );
533
534 create table if not exists migrations (
535 id integer primary key autoincrement,
536 name text unique
537 );
538
539 -- indexes for better star query performance
540 create index if not exists idx_stars_created on stars(created);
541 create index if not exists idx_stars_repo_at_created on stars(repo_at, created);
542 `)
543 if err != nil {
544 return nil, err
545 }
546
547 // run migrations
548 runMigration(conn, "add-description-to-repos", func(tx *sql.Tx) error {
549 tx.Exec(`
550 alter table repos add column description text check (length(description) <= 200);
551 `)
552 return nil
553 })
554
555 runMigration(conn, "add-rkey-to-pubkeys", func(tx *sql.Tx) error {
556 // add unconstrained column
557 _, err := tx.Exec(`
558 alter table public_keys
559 add column rkey text;
560 `)
561 if err != nil {
562 return err
563 }
564
565 // backfill
566 _, err = tx.Exec(`
567 update public_keys
568 set rkey = ''
569 where rkey is null;
570 `)
571 if err != nil {
572 return err
573 }
574
575 return nil
576 })
577
578 runMigration(conn, "add-rkey-to-comments", func(tx *sql.Tx) error {
579 _, err := tx.Exec(`
580 alter table comments drop column comment_at;
581 alter table comments add column rkey text;
582 `)
583 return err
584 })
585
586 runMigration(conn, "add-deleted-and-edited-to-issue-comments", func(tx *sql.Tx) error {
587 _, err := tx.Exec(`
588 alter table comments add column deleted text; -- timestamp
589 alter table comments add column edited text; -- timestamp
590 `)
591 return err
592 })
593
594 runMigration(conn, "add-source-info-to-pulls-and-submissions", func(tx *sql.Tx) error {
595 _, err := tx.Exec(`
596 alter table pulls add column source_branch text;
597 alter table pulls add column source_repo_at text;
598 alter table pull_submissions add column source_rev text;
599 `)
600 return err
601 })
602
603 runMigration(conn, "add-source-to-repos", func(tx *sql.Tx) error {
604 _, err := tx.Exec(`
605 alter table repos add column source text;
606 `)
607 return err
608 })
609
610 // disable foreign-keys for the next migration
611 // NOTE: this cannot be done in a transaction, so it is run outside [0]
612 //
613 // [0]: https://sqlite.org/pragma.html#pragma_foreign_keys
614 conn.ExecContext(ctx, "pragma foreign_keys = off;")
615 runMigration(conn, "recreate-pulls-column-for-stacking-support", func(tx *sql.Tx) error {
616 _, err := tx.Exec(`
617 create table pulls_new (
618 -- identifiers
619 id integer primary key autoincrement,
620 pull_id integer not null,
621
622 -- at identifiers
623 repo_at text not null,
624 owner_did text not null,
625 rkey text not null,
626
627 -- content
628 title text not null,
629 body text not null,
630 target_branch text not null,
631 state integer not null default 0 check (state in (0, 1, 2, 3)), -- closed, open, merged, deleted
632
633 -- source info
634 source_branch text,
635 source_repo_at text,
636
637 -- stacking
638 stack_id text,
639 change_id text,
640 parent_change_id text,
641
642 -- meta
643 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
644
645 -- constraints
646 unique(repo_at, pull_id),
647 foreign key (repo_at) references repos(at_uri) on delete cascade
648 );
649
650 insert into pulls_new (
651 id, pull_id,
652 repo_at, owner_did, rkey,
653 title, body, target_branch, state,
654 source_branch, source_repo_at,
655 created
656 )
657 select
658 id, pull_id,
659 repo_at, owner_did, rkey,
660 title, body, target_branch, state,
661 source_branch, source_repo_at,
662 created
663 FROM pulls;
664
665 drop table pulls;
666 alter table pulls_new rename to pulls;
667 `)
668 return err
669 })
670 conn.ExecContext(ctx, "pragma foreign_keys = on;")
671
672 // run migrations
673 runMigration(conn, "add-spindle-to-repos", func(tx *sql.Tx) error {
674 tx.Exec(`
675 alter table repos add column spindle text;
676 `)
677 return nil
678 })
679
680 // drop all knot secrets, add unique constraint to knots
681 //
682 // knots will henceforth use service auth for signed requests
683 runMigration(conn, "no-more-secrets", func(tx *sql.Tx) error {
684 _, err := tx.Exec(`
685 create table registrations_new (
686 id integer primary key autoincrement,
687 domain text not null,
688 did text not null,
689 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
690 registered text,
691 read_only integer not null default 0,
692 unique(domain, did)
693 );
694
695 insert into registrations_new (id, domain, did, created, registered, read_only)
696 select id, domain, did, created, registered, 1 from registrations
697 where registered is not null;
698
699 drop table registrations;
700 alter table registrations_new rename to registrations;
701 `)
702 return err
703 })
704
705 // recreate and add rkey + created columns with default constraint
706 runMigration(conn, "rework-collaborators-table", func(tx *sql.Tx) error {
707 // create new table
708 // - repo_at instead of repo integer
709 // - rkey field
710 // - created field
711 _, err := tx.Exec(`
712 create table collaborators_new (
713 -- identifiers for the record
714 id integer primary key autoincrement,
715 did text not null,
716 rkey text,
717
718 -- content
719 subject_did text not null,
720 repo_at text not null,
721
722 -- meta
723 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
724
725 -- constraints
726 foreign key (repo_at) references repos(at_uri) on delete cascade
727 )
728 `)
729 if err != nil {
730 return err
731 }
732
733 // copy data
734 _, err = tx.Exec(`
735 insert into collaborators_new (id, did, rkey, subject_did, repo_at)
736 select
737 c.id,
738 r.did,
739 '',
740 c.did,
741 r.at_uri
742 from collaborators c
743 join repos r on c.repo = r.id
744 `)
745 if err != nil {
746 return err
747 }
748
749 // drop old table
750 _, err = tx.Exec(`drop table collaborators`)
751 if err != nil {
752 return err
753 }
754
755 // rename new table
756 _, err = tx.Exec(`alter table collaborators_new rename to collaborators`)
757 return err
758 })
759
760 runMigration(conn, "add-rkey-to-issues", func(tx *sql.Tx) error {
761 _, err := tx.Exec(`
762 alter table issues add column rkey text not null default '';
763
764 -- get last url section from issue_at and save to rkey column
765 update issues
766 set rkey = replace(issue_at, rtrim(issue_at, replace(issue_at, '/', '')), '');
767 `)
768 return err
769 })
770
771 // repurpose the read-only column to "needs-upgrade"
772 runMigration(conn, "rename-registrations-read-only-to-needs-upgrade", func(tx *sql.Tx) error {
773 _, err := tx.Exec(`
774 alter table registrations rename column read_only to needs_upgrade;
775 `)
776 return err
777 })
778
779 // require all knots to upgrade after the release of total xrpc
780 runMigration(conn, "migrate-knots-to-total-xrpc", func(tx *sql.Tx) error {
781 _, err := tx.Exec(`
782 update registrations set needs_upgrade = 1;
783 `)
784 return err
785 })
786
787 // require all knots to upgrade after the release of total xrpc
788 runMigration(conn, "migrate-spindles-to-xrpc-owner", func(tx *sql.Tx) error {
789 _, err := tx.Exec(`
790 alter table spindles add column needs_upgrade integer not null default 0;
791 `)
792 if err != nil {
793 return err
794 }
795
796 _, err = tx.Exec(`
797 update spindles set needs_upgrade = 1;
798 `)
799 return err
800 })
801
802 // remove issue_at from issues and replace with generated column
803 //
804 // this requires a full table recreation because stored columns
805 // cannot be added via alter
806 //
807 // couple other changes:
808 // - columns renamed to be more consistent
809 // - adds edited and deleted fields
810 //
811 // disable foreign-keys for the next migration
812 conn.ExecContext(ctx, "pragma foreign_keys = off;")
813 runMigration(conn, "remove-issue-at-from-issues", func(tx *sql.Tx) error {
814 _, err := tx.Exec(`
815 create table if not exists issues_new (
816 -- identifiers
817 id integer primary key autoincrement,
818 did text not null,
819 rkey text not null,
820 at_uri text generated always as ('at://' || did || '/' || 'sh.tangled.repo.issue' || '/' || rkey) stored,
821
822 -- at identifiers
823 repo_at text not null,
824
825 -- content
826 issue_id integer not null,
827 title text not null,
828 body text not null,
829 open integer not null default 1,
830 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
831 edited text, -- timestamp
832 deleted text, -- timestamp
833
834 unique(did, rkey),
835 unique(repo_at, issue_id),
836 unique(at_uri),
837 foreign key (repo_at) references repos(at_uri) on delete cascade
838 );
839 `)
840 if err != nil {
841 return err
842 }
843
844 // transfer data
845 _, err = tx.Exec(`
846 insert into issues_new (id, did, rkey, repo_at, issue_id, title, body, open, created)
847 select
848 i.id,
849 i.owner_did,
850 i.rkey,
851 i.repo_at,
852 i.issue_id,
853 i.title,
854 i.body,
855 i.open,
856 i.created
857 from issues i;
858 `)
859 if err != nil {
860 return err
861 }
862
863 // drop old table
864 _, err = tx.Exec(`drop table issues`)
865 if err != nil {
866 return err
867 }
868
869 // rename new table
870 _, err = tx.Exec(`alter table issues_new rename to issues`)
871 return err
872 })
873 conn.ExecContext(ctx, "pragma foreign_keys = on;")
874
875 // - renames the comments table to 'issue_comments'
876 // - rework issue comments to update constraints:
877 // * unique(did, rkey)
878 // * remove comment-id and just use the global ID
879 // * foreign key (repo_at, issue_id)
880 // - new columns
881 // * column "reply_to" which can be any other comment
882 // * column "at-uri" which is a generated column
883 runMigration(conn, "rework-issue-comments", func(tx *sql.Tx) error {
884 _, err := tx.Exec(`
885 create table if not exists issue_comments (
886 -- identifiers
887 id integer primary key autoincrement,
888 did text not null,
889 rkey text,
890 at_uri text generated always as ('at://' || did || '/' || 'sh.tangled.repo.issue.comment' || '/' || rkey) stored,
891
892 -- at identifiers
893 issue_at text not null,
894 reply_to text, -- at_uri of parent comment
895
896 -- content
897 body text not null,
898 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
899 edited text,
900 deleted text,
901
902 -- constraints
903 unique(did, rkey),
904 unique(at_uri),
905 foreign key (issue_at) references issues(at_uri) on delete cascade
906 );
907 `)
908 if err != nil {
909 return err
910 }
911
912 // transfer data
913 _, err = tx.Exec(`
914 insert into issue_comments (id, did, rkey, issue_at, body, created, edited, deleted)
915 select
916 c.id,
917 c.owner_did,
918 c.rkey,
919 i.at_uri, -- get at_uri from issues table
920 c.body,
921 c.created,
922 c.edited,
923 c.deleted
924 from comments c
925 join issues i on c.repo_at = i.repo_at and c.issue_id = i.issue_id;
926 `)
927 if err != nil {
928 return err
929 }
930
931 // drop old table
932 _, err = tx.Exec(`drop table comments`)
933 return err
934 })
935
936 return &DB{db}, nil
937}
938
939type migrationFn = func(*sql.Tx) error
940
941func runMigration(c *sql.Conn, name string, migrationFn migrationFn) error {
942 tx, err := c.BeginTx(context.Background(), nil)
943 if err != nil {
944 return err
945 }
946 defer tx.Rollback()
947
948 var exists bool
949 err = tx.QueryRow("select exists (select 1 from migrations where name = ?)", name).Scan(&exists)
950 if err != nil {
951 return err
952 }
953
954 if !exists {
955 // run migration
956 err = migrationFn(tx)
957 if err != nil {
958 log.Printf("Failed to run migration %s: %v", name, err)
959 return err
960 }
961
962 // mark migration as complete
963 _, err = tx.Exec("insert into migrations (name) values (?)", name)
964 if err != nil {
965 log.Printf("Failed to mark migration %s as complete: %v", name, err)
966 return err
967 }
968
969 // commit the transaction
970 if err := tx.Commit(); err != nil {
971 return err
972 }
973
974 log.Printf("migration %s applied successfully", name)
975 } else {
976 log.Printf("skipped migration %s, already applied", name)
977 }
978
979 return nil
980}
981
982func (d *DB) Close() error {
983 return d.DB.Close()
984}
985
986type filter struct {
987 key string
988 arg any
989 cmp string
990}
991
992func newFilter(key, cmp string, arg any) filter {
993 return filter{
994 key: key,
995 arg: arg,
996 cmp: cmp,
997 }
998}
999
1000func FilterEq(key string, arg any) filter { return newFilter(key, "=", arg) }
1001func FilterNotEq(key string, arg any) filter { return newFilter(key, "<>", arg) }
1002func FilterGte(key string, arg any) filter { return newFilter(key, ">=", arg) }
1003func FilterLte(key string, arg any) filter { return newFilter(key, "<=", arg) }
1004func FilterIs(key string, arg any) filter { return newFilter(key, "is", arg) }
1005func FilterIsNot(key string, arg any) filter { return newFilter(key, "is not", arg) }
1006func FilterIn(key string, arg any) filter { return newFilter(key, "in", arg) }
1007
1008func (f filter) Condition() string {
1009 rv := reflect.ValueOf(f.arg)
1010 kind := rv.Kind()
1011
1012 // if we have `FilterIn(k, [1, 2, 3])`, compile it down to `k in (?, ?, ?)`
1013 if (kind == reflect.Slice && rv.Type().Elem().Kind() != reflect.Uint8) || kind == reflect.Array {
1014 if rv.Len() == 0 {
1015 // always false
1016 return "1 = 0"
1017 }
1018
1019 placeholders := make([]string, rv.Len())
1020 for i := range placeholders {
1021 placeholders[i] = "?"
1022 }
1023
1024 return fmt.Sprintf("%s %s (%s)", f.key, f.cmp, strings.Join(placeholders, ", "))
1025 }
1026
1027 return fmt.Sprintf("%s %s ?", f.key, f.cmp)
1028}
1029
1030func (f filter) Arg() []any {
1031 rv := reflect.ValueOf(f.arg)
1032 kind := rv.Kind()
1033 if (kind == reflect.Slice && rv.Type().Elem().Kind() != reflect.Uint8) || kind == reflect.Array {
1034 if rv.Len() == 0 {
1035 return nil
1036 }
1037
1038 out := make([]any, rv.Len())
1039 for i := range rv.Len() {
1040 out[i] = rv.Index(i).Interface()
1041 }
1042 return out
1043 }
1044
1045 return []any{f.arg}
1046}