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|
package packed
import (
"fmt"
"io/fs"
"strings"
)
// Refresh rescans the pack directory
// and replaces the store's view of available packs.
//
// Every index found must parse
// and have its pack data present and consistent;
// otherwise Refresh fails without changing the view.
func (packed *Packed) Refresh() error {
packed.refreshMu.Lock()
defer packed.refreshMu.Unlock()
dirEntries, err := fs.ReadDir(packed.root.FS(), ".")
if err != nil {
return fmt.Errorf("object/store/packed: %w", err)
}
next := make(map[string]*pack, len(packed.byName))
opened := make([]*pack, 0, len(dirEntries))
for _, dirEntry := range dirEntries {
name, ok := strings.CutSuffix(dirEntry.Name(), ".idx")
if !ok || dirEntry.IsDir() {
continue
}
if existing, ok := packed.byName[name]; ok {
next[name] = existing
continue
}
p, err := openPack(packed.root, name, packed.objectFormat)
if err != nil {
for _, p := range opened {
_ = p.close()
}
return err
}
opened = append(opened, p)
next[name] = p
}
for name, p := range packed.byName {
if _, ok := next[name]; !ok {
packed.retired = append(packed.retired, p)
}
}
packed.byName = next
present := make(map[*pack]struct{}, len(next))
for _, p := range next {
present[p] = struct{}{}
}
packed.order.Sync(present)
return nil
}
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