mirror of https://github.com/guggero/chantools
cmd: add migratedb command
Oliver Gugger
3 years ago
parent
fa62a57e95
commit
729e71f751
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package main
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import (
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"fmt"
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"github.com/guggero/chantools/lnd"
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"github.com/spf13/cobra"
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)
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type migrateDBCommand struct {
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ChannelDB string
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cmd *cobra.Command
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}
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func newMigrateDBCommand() *cobra.Command {
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cc := &migrateDBCommand{}
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cc.cmd = &cobra.Command{
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Use: "migratedb",
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Short: "Apply all recent lnd channel database migrations",
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Long: `This command opens an lnd channel database in write mode
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and applies all recent database migrations to it. This can be used to update
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an old database file to be compatible with the current version that chantools
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needs to read the database content.
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CAUTION: Running this command will make it impossible to use the channel DB
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with an older version of lnd. Downgrading is not possible and you'll need to
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run lnd v0.12.0-beta or later after using this command!'`,
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Example: `chantools migratedb \
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--channeldb ~/.lnd/data/graph/mainnet/channel.db`,
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RunE: cc.Execute,
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}
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cc.cmd.Flags().StringVar(
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&cc.ChannelDB, "channeldb", "", "lnd channel.db file to "+
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"migrate",
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)
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return cc.cmd
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}
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func (c *migrateDBCommand) Execute(_ *cobra.Command, _ []string) error {
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// Check that we have a channel DB.
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if c.ChannelDB == "" {
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return fmt.Errorf("channel DB is required")
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}
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db, err := lnd.OpenDB(c.ChannelDB, false)
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if err != nil {
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return fmt.Errorf("error opening DB: %v", err)
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}
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return db.Close()
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}
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@ -0,0 +1,44 @@
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## chantools migratedb
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Apply all recent lnd channel database migrations
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### Synopsis
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This command opens an lnd channel database in write mode
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and applies all recent database migrations to it. This can be used to update
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an old database file to be compatible with the current version that chantools
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needs to read the database content.
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CAUTION: Running this command will make it impossible to use the channel DB
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with an older version of lnd. Downgrading is not possible and you'll need to
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run lnd v0.12.0-beta or later after using this command!'
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```
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chantools migratedb [flags]
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```
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### Examples
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```
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chantools migratedb \
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--channeldb ~/.lnd/data/graph/mainnet/channel.db
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```
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### Options
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```
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--channeldb string lnd channel.db file to migrate
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-h, --help help for migratedb
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```
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### Options inherited from parent commands
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```
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-r, --regtest Indicates if regtest parameters should be used
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-t, --testnet Indicates if testnet parameters should be used
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```
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### SEE ALSO
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* [chantools](chantools.md) - Chantools helps recover funds from lightning channels
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