harness-drone/store/datastore/store.go
2015-10-27 16:48:05 -07:00

102 lines
2.5 KiB
Go

package datastore
import (
"database/sql"
"os"
"github.com/drone/drone/shared/envconfig"
"github.com/drone/drone/store"
"github.com/drone/drone/store/migration"
_ "github.com/go-sql-driver/mysql"
_ "github.com/lib/pq"
_ "github.com/mattn/go-sqlite3"
"github.com/rubenv/sql-migrate"
"github.com/russross/meddler"
log "github.com/Sirupsen/logrus"
)
// Load opens a new database connection with the specified driver
// and connection string specified in the environment variables.
func Load(env envconfig.Env) store.Store {
var (
driver = env.String("DATABASE_DRIVER", "sqlite3")
config = env.String("DATABASE_CONFIG", "drone.sqlite")
)
log.Infof("using database driver %s", driver)
log.Infof("using database config %s", config)
return New(driver, config)
}
func New(driver, config string) store.Store {
conn := Open(driver, config)
return store.New(
driver,
&nodestore{conn},
&userstore{conn},
&repostore{conn},
&keystore{conn},
&buildstore{conn},
&jobstore{conn},
&logstore{conn},
)
}
// Open opens a new database connection with the specified
// driver and connection string and returns a store.
func Open(driver, config string) *sql.DB {
db, err := sql.Open(driver, config)
if err != nil {
log.Errorln(err)
log.Fatalln("database connection failed")
}
setupMeddler(driver)
if err := setupDatabase(driver, db); err != nil {
log.Errorln(err)
log.Fatalln("migration failed")
}
return db
}
// OpenTest opens a new database connection for testing purposes.
// The database driver and connection string are provided by
// environment variables, with fallback to in-memory sqlite.
func openTest() *sql.DB {
var (
driver = "sqlite3"
config = ":memory:"
)
if os.Getenv("DATABASE_DRIVER") != "" {
driver = os.Getenv("DATABASE_DRIVER")
config = os.Getenv("DATABASE_CONFIG")
}
return Open(driver, config)
}
// helper function to setup the databsae by performing
// automated database migration steps.
func setupDatabase(driver string, db *sql.DB) error {
var migrations = &migrate.AssetMigrationSource{
Asset: migration.Asset,
AssetDir: migration.AssetDir,
Dir: driver,
}
_, err := migrate.Exec(db, driver, migrations, migrate.Up)
return err
}
// helper function to setup the meddler default driver
// based on the selected driver name.
func setupMeddler(driver string) {
switch driver {
case "sqlite3":
meddler.Default = meddler.SQLite
case "mysql":
meddler.Default = meddler.MySQL
case "postgres":
meddler.Default = meddler.PostgreSQL
}
}