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added temp migration environment

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This commit is contained in:
Andy Arthur
2022-07-21 14:44:44 -07:00
parent 226da75db3
commit c95153ca6c
6 changed files with 243 additions and 17 deletions
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go/cmd/dolt/commands/migrate.go
+22 -2
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@@ -20,8 +20,10 @@ import (
"github.com/fatih/color"
"github.com/dolthub/dolt/go/cmd/dolt/cli"
"github.com/dolthub/dolt/go/cmd/dolt/errhand"
eventsapi "github.com/dolthub/dolt/go/gen/proto/dolt/services/eventsapi/v1alpha1"
"github.com/dolthub/dolt/go/libraries/doltcore/env"
"github.com/dolthub/dolt/go/libraries/doltcore/migrate"
"github.com/dolthub/dolt/go/libraries/utils/argparser"
)
@@ -36,7 +38,7 @@ const (
var migrateDocs = cli.CommandDocumentationContent{
ShortDesc: "Executes a database migration to use the latest Dolt data format.",
LongDesc: `Migrate is a multi-purpose command to update the data format of a Dolt database. Over time, development
on Dolt requires changes to the on-disk data format. These changes are necessary to improve Database performance amd
on Dolt requires changes to the on-disk data format. These changes are necessary to improve Database performance and
correctness. Migrating to the latest format is therefore necessary for compatibility with the latest Dolt clients, and
to take advantage of the newly released Dolt features.`,
@@ -76,7 +78,7 @@ func (cmd MigrateCmd) EventType() eventsapi.ClientEventType {
// Exec executes the command
func (cmd MigrateCmd) Exec(ctx context.Context, commandStr string, args []string, dEnv *env.DoltEnv) int {
ap := cmd.ArgParser()
help, _ := cli.HelpAndUsagePrinters(cli.CommandDocsForCommandString(commandStr, migrateDocs, ap))
help, usage := cli.HelpAndUsagePrinters(cli.CommandDocsForCommandString(commandStr, migrateDocs, ap))
apr := cli.ParseArgsOrDie(ap, args, help)
if apr.Contains(migratePushFlag) && apr.Contains(migratePullFlag) {
@@ -84,5 +86,23 @@ func (cmd MigrateCmd) Exec(ctx context.Context, commandStr string, args []string
return 1
}
if err := MigrateDatabase(ctx, dEnv); err != nil {
verr := errhand.BuildDError("migration failed").AddCause(err).Build()
return HandleVErrAndExitCode(verr, usage)
}
return 0
}
func MigrateDatabase(ctx context.Context, dEnv *env.DoltEnv) error {
menv, err := migrate.NewEnvironment(ctx, dEnv)
if err != nil {
return err
}
err = migrate.TraverseDAG(ctx, menv.Migration.DoltDB, menv.Existing.DoltDB)
if err != nil {
return err
}
return migrate.SwapChunkstores(ctx, menv.Migration, "")
}