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main.go
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main.go
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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// A binary for running database migrations
package main
import (
"context"
"flag"
"fmt"
"github.com/google/exposure-notifications-verification-server/pkg/database"
"github.com/google/exposure-notifications-server/pkg/logging"
_ "github.com/jinzhu/gorm/dialects/postgres"
"github.com/sethvargo/go-envconfig"
"github.com/sethvargo/go-signalcontext"
)
var (
targetFlag = flag.String("id", "", "migration ID to move to")
rollbackFlag = flag.Bool("rollback", false, "if true, will run a rollback migration towards the target")
)
func main() {
flag.Parse()
ctx, done := signalcontext.OnInterrupt()
logger := logging.NewLogger(true)
ctx = logging.WithLogger(ctx, logger)
err := realMain(ctx)
done()
if err != nil {
logger.Fatal(err)
}
}
func realMain(ctx context.Context) error {
var config database.Config
if err := envconfig.Process(ctx, &config); err != nil {
return fmt.Errorf("failed to process config: %w", err)
}
db, err := config.Open(ctx)
if err != nil {
return fmt.Errorf("failed to connect to database: %w", err)
}
defer db.Close()
if err := db.MigrateTo(ctx, *targetFlag, *rollbackFlag); err != nil {
return fmt.Errorf("failed to run migrations: %w", err)
}
return nil
}