kot.pink
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, -- comma separated list of nsid
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 );
532
533 create table if not exists migrations (
534 id integer primary key autoincrement,
535 name text unique
536 );
537
538 -- indexes for better star query performance
539 create index if not exists idx_stars_created on stars(created);
540 create index if not exists idx_stars_repo_at_created on stars(repo_at, created);
541 `)
542 if err != nil {
543 return nil, err
544 }
545
546 // run migrations
547 runMigration(conn, "add-description-to-repos", func(tx *sql.Tx) error {
548 tx.Exec(`
549 alter table repos add column description text check (length(description) <= 200);
550 `)
551 return nil
552 })
553
554 runMigration(conn, "add-rkey-to-pubkeys", func(tx *sql.Tx) error {
555 // add unconstrained column
556 _, err := tx.Exec(`
557 alter table public_keys
558 add column rkey text;
559 `)
560 if err != nil {
561 return err
562 }
563
564 // backfill
565 _, err = tx.Exec(`
566 update public_keys
567 set rkey = ''
568 where rkey is null;
569 `)
570 if err != nil {
571 return err
572 }
573
574 return nil
575 })
576
577 runMigration(conn, "add-rkey-to-comments", func(tx *sql.Tx) error {
578 _, err := tx.Exec(`
579 alter table comments drop column comment_at;
580 alter table comments add column rkey text;
581 `)
582 return err
583 })
584
585 runMigration(conn, "add-deleted-and-edited-to-issue-comments", func(tx *sql.Tx) error {
586 _, err := tx.Exec(`
587 alter table comments add column deleted text; -- timestamp
588 alter table comments add column edited text; -- timestamp
589 `)
590 return err
591 })
592
593 runMigration(conn, "add-source-info-to-pulls-and-submissions", func(tx *sql.Tx) error {
594 _, err := tx.Exec(`
595 alter table pulls add column source_branch text;
596 alter table pulls add column source_repo_at text;
597 alter table pull_submissions add column source_rev text;
598 `)
599 return err
600 })
601
602 runMigration(conn, "add-source-to-repos", func(tx *sql.Tx) error {
603 _, err := tx.Exec(`
604 alter table repos add column source text;
605 `)
606 return err
607 })
608
609 // disable foreign-keys for the next migration
610 // NOTE: this cannot be done in a transaction, so it is run outside [0]
611 //
612 // [0]: https://sqlite.org/pragma.html#pragma_foreign_keys
613 conn.ExecContext(ctx, "pragma foreign_keys = off;")
614 runMigration(conn, "recreate-pulls-column-for-stacking-support", func(tx *sql.Tx) error {
615 _, err := tx.Exec(`
616 create table pulls_new (
617 -- identifiers
618 id integer primary key autoincrement,
619 pull_id integer not null,
620
621 -- at identifiers
622 repo_at text not null,
623 owner_did text not null,
624 rkey text not null,
625
626 -- content
627 title text not null,
628 body text not null,
629 target_branch text not null,
630 state integer not null default 0 check (state in (0, 1, 2, 3)), -- closed, open, merged, deleted
631
632 -- source info
633 source_branch text,
634 source_repo_at text,
635
636 -- stacking
637 stack_id text,
638 change_id text,
639 parent_change_id text,
640
641 -- meta
642 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
643
644 -- constraints
645 unique(repo_at, pull_id),
646 foreign key (repo_at) references repos(at_uri) on delete cascade
647 );
648
649 insert into pulls_new (
650 id, pull_id,
651 repo_at, owner_did, rkey,
652 title, body, target_branch, state,
653 source_branch, source_repo_at,
654 created
655 )
656 select
657 id, pull_id,
658 repo_at, owner_did, rkey,
659 title, body, target_branch, state,
660 source_branch, source_repo_at,
661 created
662 FROM pulls;
663
664 drop table pulls;
665 alter table pulls_new rename to pulls;
666 `)
667 return err
668 })
669 conn.ExecContext(ctx, "pragma foreign_keys = on;")
670
671 runMigration(conn, "add-spindle-to-repos", func(tx *sql.Tx) error {
672 tx.Exec(`
673 alter table repos add column spindle text;
674 `)
675 return nil
676 })
677
678 // drop all knot secrets, add unique constraint to knots
679 //
680 // knots will henceforth use service auth for signed requests
681 runMigration(conn, "no-more-secrets", func(tx *sql.Tx) error {
682 _, err := tx.Exec(`
683 create table registrations_new (
684 id integer primary key autoincrement,
685 domain text not null,
686 did text not null,
687 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
688 registered text,
689 read_only integer not null default 0,
690 unique(domain, did)
691 );
692
693 insert into registrations_new (id, domain, did, created, registered, read_only)
694 select id, domain, did, created, registered, 1 from registrations
695 where registered is not null;
696
697 drop table registrations;
698 alter table registrations_new rename to registrations;
699 `)
700 return err
701 })
702
703 // recreate and add rkey + created columns with default constraint
704 runMigration(conn, "rework-collaborators-table", func(tx *sql.Tx) error {
705 // create new table
706 // - repo_at instead of repo integer
707 // - rkey field
708 // - created field
709 _, err := tx.Exec(`
710 create table collaborators_new (
711 -- identifiers for the record
712 id integer primary key autoincrement,
713 did text not null,
714 rkey text,
715
716 -- content
717 subject_did text not null,
718 repo_at text not null,
719
720 -- meta
721 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
722
723 -- constraints
724 foreign key (repo_at) references repos(at_uri) on delete cascade
725 )
726 `)
727 if err != nil {
728 return err
729 }
730
731 // copy data
732 _, err = tx.Exec(`
733 insert into collaborators_new (id, did, rkey, subject_did, repo_at)
734 select
735 c.id,
736 r.did,
737 '',
738 c.did,
739 r.at_uri
740 from collaborators c
741 join repos r on c.repo = r.id
742 `)
743 if err != nil {
744 return err
745 }
746
747 // drop old table
748 _, err = tx.Exec(`drop table collaborators`)
749 if err != nil {
750 return err
751 }
752
753 // rename new table
754 _, err = tx.Exec(`alter table collaborators_new rename to collaborators`)
755 return err
756 })
757
758 runMigration(conn, "add-rkey-to-issues", func(tx *sql.Tx) error {
759 _, err := tx.Exec(`
760 alter table issues add column rkey text not null default '';
761
762 -- get last url section from issue_at and save to rkey column
763 update issues
764 set rkey = replace(issue_at, rtrim(issue_at, replace(issue_at, '/', '')), '');
765 `)
766 return err
767 })
768
769 // repurpose the read-only column to "needs-upgrade"
770 runMigration(conn, "rename-registrations-read-only-to-needs-upgrade", func(tx *sql.Tx) error {
771 _, err := tx.Exec(`
772 alter table registrations rename column read_only to needs_upgrade;
773 `)
774 return err
775 })
776
777 // require all knots to upgrade after the release of total xrpc
778 runMigration(conn, "migrate-knots-to-total-xrpc", func(tx *sql.Tx) error {
779 _, err := tx.Exec(`
780 update registrations set needs_upgrade = 1;
781 `)
782 return err
783 })
784
785 // require all knots to upgrade after the release of total xrpc
786 runMigration(conn, "migrate-spindles-to-xrpc-owner", func(tx *sql.Tx) error {
787 _, err := tx.Exec(`
788 alter table spindles add column needs_upgrade integer not null default 0;
789 `)
790 if err != nil {
791 return err
792 }
793
794 _, err = tx.Exec(`
795 update spindles set needs_upgrade = 1;
796 `)
797 return err
798 })
799
800 // remove issue_at from issues and replace with generated column
801 //
802 // this requires a full table recreation because stored columns
803 // cannot be added via alter
804 //
805 // couple other changes:
806 // - columns renamed to be more consistent
807 // - adds edited and deleted fields
808 //
809 // disable foreign-keys for the next migration
810 conn.ExecContext(ctx, "pragma foreign_keys = off;")
811 runMigration(conn, "remove-issue-at-from-issues", func(tx *sql.Tx) error {
812 _, err := tx.Exec(`
813 create table if not exists issues_new (
814 -- identifiers
815 id integer primary key autoincrement,
816 did text not null,
817 rkey text not null,
818 at_uri text generated always as ('at://' || did || '/' || 'sh.tangled.repo.issue' || '/' || rkey) stored,
819
820 -- at identifiers
821 repo_at text not null,
822
823 -- content
824 issue_id integer not null,
825 title text not null,
826 body text not null,
827 open integer not null default 1,
828 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
829 edited text, -- timestamp
830 deleted text, -- timestamp
831
832 unique(did, rkey),
833 unique(repo_at, issue_id),
834 unique(at_uri),
835 foreign key (repo_at) references repos(at_uri) on delete cascade
836 );
837 `)
838 if err != nil {
839 return err
840 }
841
842 // transfer data
843 _, err = tx.Exec(`
844 insert into issues_new (id, did, rkey, repo_at, issue_id, title, body, open, created)
845 select
846 i.id,
847 i.owner_did,
848 i.rkey,
849 i.repo_at,
850 i.issue_id,
851 i.title,
852 i.body,
853 i.open,
854 i.created
855 from issues i;
856 `)
857 if err != nil {
858 return err
859 }
860
861 // drop old table
862 _, err = tx.Exec(`drop table issues`)
863 if err != nil {
864 return err
865 }
866
867 // rename new table
868 _, err = tx.Exec(`alter table issues_new rename to issues`)
869 return err
870 })
871 conn.ExecContext(ctx, "pragma foreign_keys = on;")
872
873 // - renames the comments table to 'issue_comments'
874 // - rework issue comments to update constraints:
875 // * unique(did, rkey)
876 // * remove comment-id and just use the global ID
877 // * foreign key (repo_at, issue_id)
878 // - new columns
879 // * column "reply_to" which can be any other comment
880 // * column "at-uri" which is a generated column
881 runMigration(conn, "rework-issue-comments", func(tx *sql.Tx) error {
882 _, err := tx.Exec(`
883 create table if not exists issue_comments (
884 -- identifiers
885 id integer primary key autoincrement,
886 did text not null,
887 rkey text,
888 at_uri text generated always as ('at://' || did || '/' || 'sh.tangled.repo.issue.comment' || '/' || rkey) stored,
889
890 -- at identifiers
891 issue_at text not null,
892 reply_to text, -- at_uri of parent comment
893
894 -- content
895 body text not null,
896 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
897 edited text,
898 deleted text,
899
900 -- constraints
901 unique(did, rkey),
902 unique(at_uri),
903 foreign key (issue_at) references issues(at_uri) on delete cascade
904 );
905 `)
906 if err != nil {
907 return err
908 }
909
910 // transfer data
911 _, err = tx.Exec(`
912 insert into issue_comments (id, did, rkey, issue_at, body, created, edited, deleted)
913 select
914 c.id,
915 c.owner_did,
916 c.rkey,
917 i.at_uri, -- get at_uri from issues table
918 c.body,
919 c.created,
920 c.edited,
921 c.deleted
922 from comments c
923 join issues i on c.repo_at = i.repo_at and c.issue_id = i.issue_id;
924 `)
925 if err != nil {
926 return err
927 }
928
929 // drop old table
930 _, err = tx.Exec(`drop table comments`)
931 return err
932 })
933
934 return &DB{db}, nil
935}
936
937type migrationFn = func(*sql.Tx) error
938
939func runMigration(c *sql.Conn, name string, migrationFn migrationFn) error {
940 tx, err := c.BeginTx(context.Background(), nil)
941 if err != nil {
942 return err
943 }
944 defer tx.Rollback()
945
946 var exists bool
947 err = tx.QueryRow("select exists (select 1 from migrations where name = ?)", name).Scan(&exists)
948 if err != nil {
949 return err
950 }
951
952 if !exists {
953 // run migration
954 err = migrationFn(tx)
955 if err != nil {
956 log.Printf("Failed to run migration %s: %v", name, err)
957 return err
958 }
959
960 // mark migration as complete
961 _, err = tx.Exec("insert into migrations (name) values (?)", name)
962 if err != nil {
963 log.Printf("Failed to mark migration %s as complete: %v", name, err)
964 return err
965 }
966
967 // commit the transaction
968 if err := tx.Commit(); err != nil {
969 return err
970 }
971
972 log.Printf("migration %s applied successfully", name)
973 } else {
974 log.Printf("skipped migration %s, already applied", name)
975 }
976
977 return nil
978}
979
980func (d *DB) Close() error {
981 return d.DB.Close()
982}
983
984type filter struct {
985 key string
986 arg any
987 cmp string
988}
989
990func newFilter(key, cmp string, arg any) filter {
991 return filter{
992 key: key,
993 arg: arg,
994 cmp: cmp,
995 }
996}
997
998func FilterEq(key string, arg any) filter { return newFilter(key, "=", arg) }
999func FilterNotEq(key string, arg any) filter { return newFilter(key, "<>", arg) }
1000func FilterGte(key string, arg any) filter { return newFilter(key, ">=", arg) }
1001func FilterLte(key string, arg any) filter { return newFilter(key, "<=", arg) }
1002func FilterIs(key string, arg any) filter { return newFilter(key, "is", arg) }
1003func FilterIsNot(key string, arg any) filter { return newFilter(key, "is not", arg) }
1004func FilterIn(key string, arg any) filter { return newFilter(key, "in", arg) }
1005func FilterLike(key string, arg any) filter { return newFilter(key, "like", arg) }
1006func FilterNotLike(key string, arg any) filter { return newFilter(key, "not like", arg) }
1007func FilterContains(key string, arg any) filter {
1008 return newFilter(key, "like", fmt.Sprintf("%%%v%%", arg))
1009}
1010
1011func (f filter) Condition() string {
1012 rv := reflect.ValueOf(f.arg)
1013 kind := rv.Kind()
1014
1015 // if we have `FilterIn(k, [1, 2, 3])`, compile it down to `k in (?, ?, ?)`
1016 if (kind == reflect.Slice && rv.Type().Elem().Kind() != reflect.Uint8) || kind == reflect.Array {
1017 if rv.Len() == 0 {
1018 // always false
1019 return "1 = 0"
1020 }
1021
1022 placeholders := make([]string, rv.Len())
1023 for i := range placeholders {
1024 placeholders[i] = "?"
1025 }
1026
1027 return fmt.Sprintf("%s %s (%s)", f.key, f.cmp, strings.Join(placeholders, ", "))
1028 }
1029
1030 return fmt.Sprintf("%s %s ?", f.key, f.cmp)
1031}
1032
1033func (f filter) Arg() []any {
1034 rv := reflect.ValueOf(f.arg)
1035 kind := rv.Kind()
1036 if (kind == reflect.Slice && rv.Type().Elem().Kind() != reflect.Uint8) || kind == reflect.Array {
1037 if rv.Len() == 0 {
1038 return nil
1039 }
1040
1041 out := make([]any, rv.Len())
1042 for i := range rv.Len() {
1043 out[i] = rv.Index(i).Interface()
1044 }
1045 return out
1046 }
1047
1048 return []any{f.arg}
1049}