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Monorepo for Tangled tangled.org
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12 kB · 375 lines
Go
at next-dev
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import ( "context" "database/sql" "flag" "fmt" "os"
"tangled.org/core/sqlite")
func main() { cursorUs := flag.Int64("cursor-us", 0, "jetstream cursor (microsecond timestamp) at handoff cutoff. "+ "The ingester skips events before this. Capture from a running "+ "deliberi's jetstream_cursor table at snapshot time, or omit to "+ "let the ingester start from its own current time on first run.") flag.Parse()
if flag.NArg() != 2 { fmt.Fprintf(os.Stderr, "usage: %s [--cursor-us <timestamp>] <appview.db> <deliberi.db>\n", os.Args[0]) os.Exit(1) } srcPath, dstPath := flag.Arg(0), flag.Arg(1)
src, err := sqlite.Open(srcPath) if err != nil { fatal("open source: %v", err) } defer src.Close()
dst, err := sqlite.Open(dstPath) if err != nil { fatal("open dest: %v", err) } defer dst.Close()
// ATTACH is per-connection in SQLite — pin one connection for everything // that touches the destination. ctx := context.Background() conn, err := dst.Conn(ctx) if err != nil { fatal("get conn: %v", err) } defer conn.Close()
if _, err := conn.ExecContext(ctx, deliberiSchema); err != nil { fatal("create schema: %v", err) }
// ATTACH the source DB so we can JOIN across databases. if _, err := conn.ExecContext(ctx, "attach database ? as appview", srcPath); err != nil { fatal("attach appview: %v", err) }
tx, err := conn.BeginTx(ctx, nil) if err != nil { fatal("begin tx: %v", err) } defer tx.Rollback()
if err := copyEmails(src, tx); err != nil { fatal("emails: %v", err) } fmt.Println("migrated emails")
if err := copyNotificationPreferences(src, tx); err != nil { fatal("notification_preferences: %v", err) } fmt.Println("migrated notification_preferences")
if err := copySignupsInflight(src, tx); err != nil { fatal("signups_inflight: %v", err) } fmt.Println("migrated signups_inflight")
if err := migrateNotifications(tx); err != nil { fatal("notifications: %v", err) } fmt.Println("migrated notifications")
if err := migrateRepoNames(tx); err != nil { fatal("repo_names: %v", err) } fmt.Println("migrated repo_names")
if err := migrateEntityTitles(tx); err != nil { fatal("entity_titles: %v", err) } fmt.Println("migrated entity_titles")
// Optionally seed the jetstream cursor so the ingester skips historical // events and doesn't create real-URI duplicates of migrated rows. Capture // the cursor from a running instance's jetstream_cursor at handoff time; // omit to let the ingester start from its own current time on first run. if *cursorUs != 0 { if _, err := tx.Exec( `insert or replace into jetstream_cursor (id, last_time_us) values (0, ?)`, *cursorUs, ); err != nil { fatal("seed cursor: %v", err) } fmt.Printf("seeded jetstream cursor at %d\n", *cursorUs) }
if err := tx.Commit(); err != nil { fatal("commit: %v", err) }
// DETACH is not transactional; run after commit on the same conn. if _, err := conn.ExecContext(ctx, "detach database appview"); err != nil { fatal("detach: %v", err) } fmt.Println("migration complete")}
func copyEmails(src *sql.DB, tx *sql.Tx) error { rows, err := src.Query(`select did, email, verified, verification_code, last_sent, is_primary, created from emails`) if err != nil { return fmt.Errorf("query emails: %w", err) } defer rows.Close()
stmt, err := tx.Prepare(`insert into emails (did, email, verified, verification_code, last_sent, is_primary, created) values (?, ?, ?, ?, ?, ?, ?)`) if err != nil { return fmt.Errorf("prepare: %w", err) } defer stmt.Close()
var count int for rows.Next() { var did, email, code, lastSent, created string var verified, isPrimary int if err := rows.Scan(&did, &email, &verified, &code, &lastSent, &isPrimary, &created); err != nil { return fmt.Errorf("scan: %w", err) } if _, err := stmt.Exec(did, email, verified, code, lastSent, isPrimary, created); err != nil { return fmt.Errorf("insert: %w", err) } count++ } if err := rows.Err(); err != nil { return err } fmt.Printf(" %d rows\n", count) return nil}
func copyNotificationPreferences(src *sql.DB, tx *sql.Tx) error { rows, err := src.Query(`select user_did, repo_starred, issue_created, issue_commented, pull_created, pull_commented, followed, email_notifications from notification_preferences`) if err != nil { return fmt.Errorf("query prefs: %w", err) } defer rows.Close()
stmt, err := tx.Prepare(`insert into notification_preferences (user_did, repo_starred, issue_created, issue_commented, pull_created, pull_commented, followed, email_notifications) values (?, ?, ?, ?, ?, ?, ?, ?)`) if err != nil { return fmt.Errorf("prepare: %w", err) } defer stmt.Close()
var count int for rows.Next() { var userDid string var starred, issueC, issueCm, pullC, pullCm, followed, emailNotif int if err := rows.Scan(&userDid, &starred, &issueC, &issueCm, &pullC, &pullCm, &followed, &emailNotif); err != nil { return fmt.Errorf("scan: %w", err) } if _, err := stmt.Exec(userDid, starred, issueC, issueCm, pullC, pullCm, followed, emailNotif); err != nil { return fmt.Errorf("insert: %w", err) } count++ } if err := rows.Err(); err != nil { return err } fmt.Printf(" %d rows\n", count) return nil}
func copySignupsInflight(src *sql.DB, tx *sql.Tx) error { rows, err := src.Query(`select email, invite_code, created from signups_inflight`) if err != nil { return fmt.Errorf("query signups: %w", err) } defer rows.Close()
// legacy rows have no token; mint one per row so the unique index holds stmt, err := tx.Prepare(`insert into signups_inflight (email, invite_code, verification_token, created, expires_at, last_sent) values (?, ?, lower(hex(randomblob(32))), ?, strftime('%Y-%m-%dT%H:%M:%SZ', 'now', '+24 hours'), strftime('%Y-%m-%dT%H:%M:%SZ', 'now', '-1 day'))`) if err != nil { return fmt.Errorf("prepare: %w", err) } defer stmt.Close()
var count int for rows.Next() { var email, code, created string if err := rows.Scan(&email, &code, &created); err != nil { return fmt.Errorf("scan: %w", err) } if _, err := stmt.Exec(email, code, created); err != nil { return fmt.Errorf("insert: %w", err) } count++ } if err := rows.Err(); err != nil { return err } fmt.Printf(" %d rows\n", count) return nil}
func migrateNotifications(tx *sql.Tx) error { // old entity_type values: 'issue', 'pull', 'repo', 'follow' // old entity_id values: issue/pull at-uri (for issue/pull), repo DID (for repo), follower DID (for follow) // // Map to new schema: // at_uri = deliberi:migrated/{n.id} (synthetic, unique per row) // repo_did = repos.repo_did (the repo identifier, not repos.did) // entity_at = issue/pull at-uri (from entity_id for issue/pull, or repos.at_uri for star) // entity_kind = entity_type for issue/pull // entity_title = issues.title / pulls.title / repos.name // emailed = 1 (skip digest for migrated rows)
query := ` insert into notifications (id, recipient_did, at_uri, type, actor_did, repo_did, entity_at, entity_kind, entity_title, read, emailed, created) select n.id, n.recipient_did, 'deliberi:migrated/' || n.id, n.type, n.actor_did, coalesce(r.repo_did, ''), coalesce( case when n.entity_type in ('issue', 'pull') then n.entity_id when n.entity_type = 'repo' then r.at_uri else '' end, '' ), case when n.entity_type in ('issue', 'pull') then n.entity_type else '' end, coalesce( case when n.entity_type = 'issue' then i.title when n.entity_type = 'pull' then p.title when n.entity_type = 'repo' then r.name else '' end, '' ), n.read, 1, n.created from appview.notifications n left join appview.repos r on r.id = n.repo_id left join appview.issues i on i.id = n.issue_id left join appview.pulls p on p.id = n.pull_id `
res, err := tx.Exec(query) if err != nil { return fmt.Errorf("migrate notifications: %w", err) } n, _ := res.RowsAffected() fmt.Printf(" %d rows\n", n) return nil}
func migrateRepoNames(tx *sql.Tx) error { res, err := tx.Exec(` insert or ignore into repo_names (repo_did, name, owner_did) select repo_did, name, did from appview.repos `) if err != nil { return fmt.Errorf("migrate repo_names: %w", err) } n, _ := res.RowsAffected() fmt.Printf(" %d rows\n", n) return nil}
func migrateEntityTitles(tx *sql.Tx) error { res, err := tx.Exec(` insert or ignore into entity_titles (at_uri, title, kind) select at_uri, title, 'issue' from appview.issues union select at_uri, title, 'pull' from appview.pulls `) if err != nil { return fmt.Errorf("migrate entity_titles: %w", err) } n, _ := res.RowsAffected() fmt.Printf(" %d rows\n", n) return nil}
func fatal(format string, args ...any) { fmt.Fprintf(os.Stderr, format+"\n", args...) os.Exit(1)}
const deliberiSchema = `create table if not exists emails ( id integer primary key autoincrement, did text not null, email text not null, verified integer not null default 0, verification_code text not null, last_sent text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')), is_primary integer not null default 0, created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')), unique(did, email));
create table if not exists signups_inflight ( id integer primary key autoincrement, email text not null unique, invite_code text not null, verification_token text not null default '', created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')), expires_at text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now', '+24 hours')), last_sent text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')));create unique index if not exists signups_inflight_verification_token_unique on signups_inflight (verification_token);
create table if not exists notifications ( id integer primary key autoincrement, recipient_did text not null, at_uri text not null, type text not null, actor_did text not null, repo_did text not null default '', entity_at text not null default '', entity_kind text not null default '', entity_title text not null default '', read integer not null default 0, emailed integer not null default 0, created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')), unique(recipient_did, at_uri));create index if not exists idx_deliberi_notifs_recipient on notifications(recipient_did, read, created);create index if not exists idx_deliberi_notifs_digest on notifications(recipient_did, emailed, read, created);
create table if not exists repo_names ( repo_did text primary key, name text not null, owner_did text not null default '');create table if not exists entity_titles ( at_uri text primary key, title text not null, repo_did text not null default '', kind text not null default '');create table if not exists jetstream_cursor ( id integer primary key check (id = 0), last_time_us integer not null);create table if not exists notification_preferences ( id integer primary key autoincrement, user_did text not null unique, repo_starred integer not null default 1, issue_created integer not null default 1, issue_commented integer not null default 1, pull_created integer not null default 1, pull_commented integer not null default 1, followed integer not null default 1, user_mentioned integer not null default 1, email_notifications integer not null default 0);`