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63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
// Copyright 2023 Harness, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package migrations
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import (
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"errors"
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"fmt"
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"strings"
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"github.com/golang-migrate/migrate/v4"
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"github.com/rs/zerolog/log"
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)
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// Migrate orchestrates database migrations using golang-migrate.
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func Migrate(m *migrate.Migrate) error {
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version, dirty, err := m.Version()
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if err != nil && !errors.Is(err, migrate.ErrNilVersion) {
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log.Info().Msg("failed to fetch schema version from db.")
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return err
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}
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log.Info().Msgf("current version %d", version)
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if dirty {
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prev := int(version) - 1
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log.Info().Msg(fmt.Sprintf("schema is dirty at version = %d. Forcing version to %d", int(version), prev))
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err = m.Force(prev)
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if err != nil {
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log.Error().Stack().Err(err).Msg(fmt.Sprintf("failed to force schema version to %d %s", prev, err))
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return err
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}
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}
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err = m.Up()
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if errors.Is(err, migrate.ErrNoChange) {
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log.Info().Msg("No change to schema. No migrations were run")
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return nil
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}
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if err != nil && strings.Contains(err.Error(), "no migration found") {
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// The library throws this error when a give migration file does not exist. Unfortunately, we do not have
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// an error constant to compare with
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log.Error().Stack().Err(err).Msg("skipping migration because migration file was not found")
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return nil
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}
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if err != nil {
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log.Error().Stack().Err(err).Msg("failed to run db migrations")
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return fmt.Errorf("error when migration up: %w", err)
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}
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log.Info().Msg("Migrations successfully completed")
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return nil
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}
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