SQLite:: Add some convenience
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6cb4bdf152
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@ -181,24 +181,20 @@ LocalStore::LocalStore(const Params & params)
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if (curSchema < 8) {
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SQLiteTxn txn(state->db);
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if (sqlite3_exec(state->db, "alter table ValidPaths add column ultimate integer", 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(state->db, "upgrading database schema");
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if (sqlite3_exec(state->db, "alter table ValidPaths add column sigs text", 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(state->db, "upgrading database schema");
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state->db.exec("alter table ValidPaths add column ultimate integer");
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state->db.exec("alter table ValidPaths add column sigs text");
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txn.commit();
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}
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if (curSchema < 9) {
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SQLiteTxn txn(state->db);
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if (sqlite3_exec(state->db, "drop table FailedPaths", 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(state->db, "upgrading database schema");
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state->db.exec("drop table FailedPaths");
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txn.commit();
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}
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if (curSchema < 10) {
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SQLiteTxn txn(state->db);
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if (sqlite3_exec(state->db, "alter table ValidPaths add column ca text", 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(state->db, "upgrading database schema");
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state->db.exec("alter table ValidPaths add column ca text");
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txn.commit();
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}
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@ -286,8 +282,7 @@ void LocalStore::openDB(State & state, bool create)
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if (sqlite3_busy_timeout(db, 60 * 60 * 1000) != SQLITE_OK)
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throwSQLiteError(db, "setting timeout");
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if (sqlite3_exec(db, "pragma foreign_keys = 1;", 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(db, "enabling foreign keys");
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db.exec("pragma foreign_keys = 1");
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/* !!! check whether sqlite has been built with foreign key
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support */
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@ -297,8 +292,7 @@ void LocalStore::openDB(State & state, bool create)
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all. This can cause database corruption if the system
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crashes. */
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string syncMode = settings.fsyncMetadata ? "normal" : "off";
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if (sqlite3_exec(db, ("pragma synchronous = " + syncMode + ";").c_str(), 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(db, "setting synchronous mode");
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db.exec("pragma synchronous = " + syncMode);
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/* Set the SQLite journal mode. WAL mode is fastest, so it's the
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default. */
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@ -326,8 +320,7 @@ void LocalStore::openDB(State & state, bool create)
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const char * schema =
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#include "schema.sql.hh"
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;
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if (sqlite3_exec(db, (const char *) schema, 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(db, "initialising database schema");
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db.exec(schema);
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}
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}
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@ -1297,9 +1290,7 @@ void LocalStore::upgradeStore7()
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void LocalStore::vacuumDB()
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{
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auto state(_state.lock());
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if (sqlite3_exec(state->db, "vacuum;", 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(state->db, "vacuuming SQLite database");
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state->db.exec("vacuum");
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}
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@ -78,21 +78,16 @@ public:
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Path dbPath = getCacheDir() + "/nix/binary-cache-v5.sqlite";
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createDirs(dirOf(dbPath));
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if (sqlite3_open_v2(dbPath.c_str(), &state->db.db,
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SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0) != SQLITE_OK)
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throw Error(format("cannot open store cache ‘%s’") % dbPath);
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state->db = SQLite(dbPath);
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if (sqlite3_busy_timeout(state->db, 60 * 60 * 1000) != SQLITE_OK)
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throwSQLiteError(state->db, "setting timeout");
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// We can always reproduce the cache.
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if (sqlite3_exec(state->db, "pragma synchronous = off", 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(state->db, "making database asynchronous");
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if (sqlite3_exec(state->db, "pragma main.journal_mode = truncate", 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(state->db, "setting journal mode");
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state->db.exec("pragma synchronous = off");
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state->db.exec("pragma main.journal_mode = truncate");
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if (sqlite3_exec(state->db, schema, 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(state->db, "initialising database schema");
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state->db.exec(schema);
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state->insertCache.create(state->db,
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"insert or replace into BinaryCaches(url, timestamp, storeDir, wantMassQuery, priority) values (?, ?, ?, ?, ?)");
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@ -35,6 +35,13 @@ namespace nix {
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throw SQLiteError(format("%1%: %2%") % f.str() % sqlite3_errmsg(db));
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}
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SQLite::SQLite(const Path & path)
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{
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if (sqlite3_open_v2(path.c_str(), &db,
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SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0) != SQLITE_OK)
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throw Error(format("cannot open SQLite database ‘%s’") % path);
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}
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SQLite::~SQLite()
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{
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try {
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@ -45,6 +52,12 @@ SQLite::~SQLite()
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}
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}
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void SQLite::exec(const std::string & stmt)
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{
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if (sqlite3_exec(db, stmt.c_str(), 0, 0, 0) != SQLITE_OK)
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throwSQLiteError(db, format("executing SQLite statement ‘%s’") % stmt);
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}
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void SQLiteStmt::create(sqlite3 * db, const string & s)
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{
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checkInterrupt();
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@ -13,10 +13,16 @@ namespace nix {
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/* RAII wrapper to close a SQLite database automatically. */
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struct SQLite
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{
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sqlite3 * db;
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SQLite() { db = 0; }
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sqlite3 * db = 0;
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SQLite() { }
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SQLite(const Path & path);
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SQLite(const SQLite & from) = delete;
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SQLite& operator = (const SQLite & from) = delete;
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SQLite& operator = (SQLite && from) { db = from.db; from.db = 0; return *this; }
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~SQLite();
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operator sqlite3 * () { return db; }
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void exec(const std::string & stmt);
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};
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/* RAII wrapper to create and destroy SQLite prepared statements. */
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