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package files
import (
"errors"
"os"
)
func (tx *Transaction) applyPackedDeletes(prepared []preparedTxOp) error {
_, err := tx.store.commonRoot.Stat("packed-refs.lock")
if err != nil {
if errors.Is(err, os.ErrNotExist) {
return nil
}
return err
}
packed, err := tx.store.readPackedRefs()
if err != nil {
return err
}
deleted := make(map[string]struct{})
needed := false
for _, item := range prepared {
if item.op.kind != txDelete && item.op.kind != txDeleteSymbolic {
continue
}
deleted[item.target.name] = struct{}{}
if item.target.ref.isPacked {
needed = true
}
}
if !needed {
return nil
}
lock, err := tx.store.commonRoot.OpenFile("packed-refs.new", os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0o644)
if err != nil {
return err
}
createdTemp := true
defer func() {
if !createdTemp {
return
}
_ = tx.store.commonRoot.Remove("packed-refs.new")
}()
_, err = lock.WriteString("# pack-refs with: peeled fully-peeled sorted\n")
if err != nil {
_ = lock.Close()
return err
}
for _, entry := range packed.ordered {
if _, skip := deleted[entry.Name()]; skip {
continue
}
_, err = lock.WriteString(entry.ID.String() + " " + entry.Name() + "\n")
if err != nil {
_ = lock.Close()
return err
}
if entry.Peeled != nil {
_, err = lock.WriteString("^" + entry.Peeled.String() + "\n")
if err != nil {
_ = lock.Close()
return err
}
}
}
err = lock.Close()
if err != nil {
return err
}
err = tx.store.commonRoot.Rename("packed-refs.new", "packed-refs")
if err != nil {
return err
}
createdTemp = false
return nil
}
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