hydra/src/hydra.schema

create table builds (
    id            integer primary key autoincrement not null,
    timestamp     integer not null, -- time this build was added to the db (in Unix time)
    name          text not null,
    description   text,
    drvPath       text not null,
    outPath       text not null,
    buildStatus   integer -- 0 = succeeded, 1 = failure, ...
);


create table buildProducts (
    buildId       integer not null,
    type          text not null, -- "nix-build", "file", "doc", "report", ...
    subtype       text not null, -- "sources", "rpm", ...
    path          text not null,
    primary key   (buildId, type, subType),
    foreign key   (buildId) references builds(id) on delete cascade -- ignored by sqlite
);


create table buildLogs (
    buildId       integer not null,
    logPhase      text not null,
    path          text not null,
    type          text not null,
    primary key   (buildId, logPhase),
    foreign key   (buildId) references builds(id) on delete cascade -- ignored by sqlite
);


-- Emulate "on delete cascade" foreign key constraints.
create trigger cascadeBuildDeletion
  before delete on builds
  for each row begin
    delete from buildLogs where buildId = old.id;
    delete from buildProducts where buildId = old.id;
  end;