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package files
func (executor *refUpdateExecutor) prepareUpdates(ops []queuedUpdate) (prepared []preparedUpdate, err error) {
defer func() {
if err != nil {
_ = executor.cleanupPreparedUpdates(prepared)
}
}()
prepared, err = executor.resolvePreparedUpdates(ops)
if err != nil {
return prepared, err
}
deleted, written := collectPreparedWrites(prepared)
existing, err := executor.collectVisibleNames()
if err != nil {
return prepared, err
}
for _, name := range written {
err = verifyRefnameAvailable(name, existing, written, deleted)
if err != nil {
return prepared, err
}
}
err = executor.prepareUpdateLocks(prepared)
if err != nil {
return prepared, err
}
hasDeletes := len(deleted) > 0
if hasDeletes {
err = executor.createPackedRefsLock(executor.store.packedRefsTimeout)
if err != nil {
return prepared, err
}
}
err = executor.verifyPreparedUpdates(prepared)
if err != nil {
return prepared, err
}
return prepared, nil
}
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