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initial persistent history implementation

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This commit is contained in:
Shivaram Lingamneni 2020-02-18 19:38:42 -05:00
parent 0d5a4fd584
commit 33dac4c0ba
34 changed files with 2229 additions and 595 deletions
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20
irc/database.go
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@ -36,22 +36,6 @@ type SchemaChange struct {
// maps an initial version to a schema change capable of upgrading it
var schemaChanges map[string]SchemaChange
type incompatibleSchemaError struct {
currentVersion string
requiredVersion string
}
func IncompatibleSchemaError(currentVersion string) (result *incompatibleSchemaError) {
return &incompatibleSchemaError{
currentVersion: currentVersion,
requiredVersion: latestDbSchema,
}
}
func (err *incompatibleSchemaError) Error() string {
return fmt.Sprintf("Database requires update. Expected schema v%s, got v%s", err.requiredVersion, err.currentVersion)
}
// InitDB creates the database, implementing the `oragono initdb` command.
func InitDB(path string) {
_, err := os.Stat(path)
@ -129,7 +113,7 @@ func openDatabaseInternal(config *Config, allowAutoupgrade bool) (db *buntdb.DB,
// successful autoupgrade, let's try this again:
return openDatabaseInternal(config, false)
} else {
err = IncompatibleSchemaError(version)
err = &utils.IncompatibleSchemaError{CurrentVersion: version, RequiredVersion: latestDbSchema}
return
}
}
@ -173,7 +157,7 @@ func UpgradeDB(config *Config) (err error) {
break
}
// unable to upgrade to the desired version, roll back
return IncompatibleSchemaError(version)
return &utils.IncompatibleSchemaError{CurrentVersion: version, RequiredVersion: latestDbSchema}
}
log.Println("attempting to update schema from version " + version)
err := change.Changer(config, tx)