378b863b2b
first, so that they all work the same way, because it's getting complicated, and second, so that we can do the appropriate thing instead of CREATE SCHEMA for cockroachdb. Change-Id: I27fbaeeb6223a3e06d97bcf692a2d014b31465f7
79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package cockroachutil
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import (
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"database/sql"
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"net/url"
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"strings"
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"github.com/lib/pq"
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"github.com/zeebo/errs"
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"gopkg.in/spacemonkeygo/monkit.v2"
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"storj.io/storj/private/dbutil"
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)
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var mon = monkit.Package()
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// OpenUnique opens a temporary unique CockroachDB database that will be cleaned up when closed.
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// It is expected that this should normally be used by way of
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// "storj.io/storj/private/dbutil/tempdb".OpenUnique() instead of calling it directly.
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func OpenUnique(connStr string, schemaName string) (db *dbutil.TempDatabase, err error) {
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if !strings.HasPrefix(connStr, "cockroach://") {
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return nil, errs.New("expected a cockroachDB URI, but got %q", connStr)
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}
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connStr = "postgres://" + connStr[12:]
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masterDB, err := sql.Open("postgres", connStr)
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if err != nil {
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return nil, errs.Wrap(err)
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}
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defer func() {
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err = errs.Combine(err, masterDB.Close())
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}()
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err = masterDB.Ping()
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if err != nil {
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return nil, errs.New("Could not open masterDB at conn %q: %v", connStr, err)
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}
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_, err = masterDB.Exec("CREATE DATABASE " + pq.QuoteIdentifier(schemaName))
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if err != nil {
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return nil, errs.Wrap(err)
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}
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cleanup := func(cleanupDB *sql.DB) error {
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_, err := cleanupDB.Exec("DROP DATABASE " + pq.QuoteIdentifier(schemaName))
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return errs.Wrap(err)
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}
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modifiedConnStr, err := changeDBTargetInConnStr(connStr, schemaName)
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if err != nil {
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return nil, errs.Combine(err, cleanup(masterDB))
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}
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sqlDB, err := sql.Open("postgres", modifiedConnStr)
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if err != nil {
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return nil, errs.Combine(errs.Wrap(err), cleanup(masterDB))
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}
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dbutil.Configure(sqlDB, mon)
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return &dbutil.TempDatabase{
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DB: sqlDB,
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ConnStr: modifiedConnStr,
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Schema: schemaName,
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Driver: "postgres",
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Implementation: dbutil.Cockroach,
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Cleanup: cleanup,
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}, nil
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}
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func changeDBTargetInConnStr(connStr string, newDBName string) (string, error) {
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connURL, err := url.Parse(connStr)
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if err != nil {
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return "", errs.Wrap(err)
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}
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connURL.Path = newDBName
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return connURL.String(), nil
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}
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