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Merge pull request #11631 from DeterminateSystems/remove-ca-schema-migrations

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Cleanup: Remove migrations for ancient CA schemas
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Eelco Dolstra 2024-10-03 16:38:05 +02:00 committed by GitHub
commit 4e8a9e0ed4
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1 changed files with 3 additions and 56 deletions
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59
src/libstore/local-store.cc
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@ -93,7 +93,7 @@ struct LocalStore::State::Stmts {
SQLiteStmt AddRealisationReference;
};
int getSchema(Path schemaPath)
static int getSchema(Path schemaPath)
{
int curSchema = 0;
if (pathExists(schemaPath)) {
@ -130,61 +130,8 @@ void migrateCASchema(SQLite& db, Path schemaPath, AutoCloseFD& lockFd)
curCASchema = nixCASchemaVersion;
}
if (curCASchema < 2) {
SQLiteTxn txn(db);
// Ugly little sql dance to add a new `id` column and make it the primary key
db.exec(R"(
create table Realisations2 (
id integer primary key autoincrement not null,
drvPath text not null,
outputName text not null, -- symbolic output id, usually "out"
outputPath integer not null,
signatures text, -- space-separated list
foreign key (outputPath) references ValidPaths(id) on delete cascade
);
insert into Realisations2 (drvPath, outputName, outputPath, signatures)
select drvPath, outputName, outputPath, signatures from Realisations;
drop table Realisations;
alter table Realisations2 rename to Realisations;
)");
db.exec(R"(
create index if not exists IndexRealisations on Realisations(drvPath, outputName);
create table if not exists RealisationsRefs (
referrer integer not null,
realisationReference integer,
foreign key (referrer) references Realisations(id) on delete cascade,
foreign key (realisationReference) references Realisations(id) on delete restrict
);
)");
txn.commit();
}
if (curCASchema < 3) {
SQLiteTxn txn(db);
// Apply new indices added in this schema update.
db.exec(R"(
-- used by QueryRealisationReferences
create index if not exists IndexRealisationsRefs on RealisationsRefs(referrer);
-- used by cascade deletion when ValidPaths is deleted
create index if not exists IndexRealisationsRefsOnOutputPath on Realisations(outputPath);
)");
txn.commit();
}
if (curCASchema < 4) {
SQLiteTxn txn(db);
db.exec(R"(
create trigger if not exists DeleteSelfRefsViaRealisations before delete on ValidPaths
begin
delete from RealisationsRefs where realisationReference in (
select id from Realisations where outputPath = old.id
);
end;
-- used by deletion trigger
create index if not exists IndexRealisationsRefsRealisationReference on RealisationsRefs(realisationReference);
)");
txn.commit();
}
if (curCASchema < 4)
throw Error("experimental CA schema version %d is no longer supported", curCASchema);
writeFile(schemaPath, fmt("%d", nixCASchemaVersion), 0666, true);
lockFile(lockFd.get(), ltRead, true);