Add function to delete the ledger data for a channel

[manish-sethi]

Signed-off-by: manish manish.sethi@gmail.com

Type of change

• New feature

Description

This PR adds a function that takes the ledger config and deletes the data for a channel

Additional details

This is a basic function that would be invoked in the future PR and the tests will be added in that PR

Related issues

FAB-11334

[cendhu]

LGTM. Just a doubt.

[cendhu]

As this function creates all providers and removes the data associated with a given ledgerID, shouldn't it take care of deleting the ledgerID from the idStore too?

If not, are we expecting the caller of this function to open the idStore and delete the ledgerID once this function returns success?

[cendhu]

Got the answer by looking at the code of other commands such as pause, resume. So the caller should take care of acquiring the lock as well as deleting the ledgerID from the idStore

fabric/core/ledger/kvledger/pause_resume.go

Lines 33 to 47 in 7151302

	func pauseOrResumeChannel(rootFSPath, ledgerID string, status msgs.Status) error {
	fileLock := leveldbhelper.NewFileLock(fileLockPath(rootFSPath))
	if err := fileLock.Lock(); err != nil {
	return errors.Wrap(err, "as another peer node command is executing,"+
	" wait for that command to complete its execution or terminate it before retrying")
	}
	defer fileLock.Unlock()
	idStore, err := openIDStore(LedgerProviderPath(rootFSPath))
	if err != nil {
	return err
	}
	defer idStore.db.Close()
	return idStore.updateLedgerStatus(ledgerID, status)
	}

as done here