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d8a4a28259
When aptly crashes it is possible to get a corrupt database with a dangling key reference.
This results in an error with 'key not found', eg:
ERROR: unable to load package Pall example-package 1.2.3 778cf6f877bf6e2d: key not found
This change makes `db recover` fix this situation by removing the dangling references.
46 lines
974 B
Go
46 lines
974 B
Go
package deb
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import (
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"errors"
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"fmt"
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"github.com/aptly-dev/aptly/database"
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)
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// FindDanglingReferences finds references that exist in the given PackageRefList, but not in the given PackageCollection.
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// It returns all such references, so they can be removed from the database.
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func FindDanglingReferences(reflist *PackageRefList, packages *PackageCollection) (dangling *PackageRefList, err error) {
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dangling = &PackageRefList{}
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err = reflist.ForEach(func(key []byte) error {
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ok, err := isDangling(packages, key)
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if err != nil {
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return err
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}
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if ok {
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dangling.Refs = append(dangling.Refs, key)
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}
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return nil
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})
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if err != nil {
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return nil, err
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}
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return dangling, nil
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}
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func isDangling(packages *PackageCollection, key []byte) (bool, error) {
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_, err := packages.ByKey(key)
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if errors.Is(err, database.ErrNotFound) {
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return true, nil
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}
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if err != nil {
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return false, fmt.Errorf("get reference %q: %w", key, err)
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}
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return false, nil
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}
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