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refactor(repository): move schema manager and migrations folder
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2 changes: 1 addition & 1 deletion
2
.../000002_create_postgraphile_view.down.sql → .../000002_create_postgraphile_view.down.sql
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| -- (c) Cartesi and individual authors (see AUTHORS) | ||
| -- SPDX-License-Identifier: Apache-2.0 (see LICENSE) | ||
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| DROP SCHEMA graphql CASCADE; | ||
| DROP SCHEMA graphql CASCADE; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| // (c) Cartesi and individual authors (see AUTHORS) | ||
| // SPDX-License-Identifier: Apache-2.0 (see LICENSE) | ||
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| package schema | ||
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| import ( | ||
| "embed" | ||
| "errors" | ||
| "fmt" | ||
| "log/slog" | ||
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| "github.com/golang-migrate/migrate/v4" | ||
| mig "github.com/golang-migrate/migrate/v4" | ||
| _ "github.com/golang-migrate/migrate/v4/database/postgres" | ||
| _ "github.com/golang-migrate/migrate/v4/source/file" | ||
| "github.com/golang-migrate/migrate/v4/source/iofs" | ||
| ) | ||
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| //go:embed migrations/* | ||
| var content embed.FS | ||
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| const ExpectedVersion uint = 2 | ||
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| type Schema struct { | ||
| migrate *mig.Migrate | ||
| } | ||
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| func New(postgresEndpoint string) (*Schema, error) { | ||
| driver, err := iofs.New(content, "migrations") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
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| migrate, err := mig.NewWithSourceInstance("iofs", driver, postgresEndpoint) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
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| return &Schema{migrate: migrate}, nil | ||
| } | ||
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| func (s *Schema) Version() (uint, error) { | ||
| version, _, err := s.migrate.Version() | ||
| if err != nil && errors.Is(err, migrate.ErrNilVersion) { | ||
| return version, fmt.Errorf("No valid database schema found") | ||
| } | ||
| return version, err | ||
| } | ||
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| func (s *Schema) Upgrade() error { | ||
| if err := s.migrate.Up(); err != nil && !errors.Is(err, migrate.ErrNoChange) { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
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| func (s *Schema) Downgrade() error { | ||
| if err := s.migrate.Down(); err != nil && !errors.Is(err, migrate.ErrNoChange) { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
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| func (s *Schema) Close() { | ||
| source, db := s.migrate.Close() | ||
| if source != nil { | ||
| slog.Error("Error releasing migration sources", "error", source) | ||
| } | ||
| if db != nil { | ||
| slog.Error("Error closing db connection", "error", db) | ||
| } | ||
| } | ||
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| func (s *Schema) ValidateVersion() (uint, error) { | ||
| version, err := s.Version() | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
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| if version != ExpectedVersion { | ||
| format := "Database schema version mismatch. Expected %d but it is %d" | ||
| return 0, fmt.Errorf(format, ExpectedVersion, version) | ||
| } | ||
| return version, nil | ||
| } |
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