mirror of
https://github.com/MichaelMure/git-bug.git
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59 lines
1.2 KiB
Go
59 lines
1.2 KiB
Go
package bug
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import "github.com/MichaelMure/git-bug/repository"
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var _ Interface = &WithSnapshot{}
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// WithSnapshot encapsulate a Bug and maintain the corresponding Snapshot efficiently
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type WithSnapshot struct {
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*Bug
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snap *Snapshot
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}
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// Snapshot return the current snapshot
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func (b *WithSnapshot) Snapshot() *Snapshot {
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if b.snap == nil {
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snap := b.Bug.Compile()
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b.snap = &snap
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}
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return b.snap
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}
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// Append intercept Bug.Append() to update the snapshot efficiently
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func (b *WithSnapshot) Append(op Operation) {
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b.Bug.Append(op)
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if b.snap == nil {
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return
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}
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op.Apply(b.snap)
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b.snap.Operations = append(b.snap.Operations, op)
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}
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// Commit intercept Bug.Commit() to update the snapshot efficiently
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func (b *WithSnapshot) Commit(repo repository.ClockedRepo) error {
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err := b.Bug.Commit(repo)
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if err != nil {
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b.snap = nil
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return err
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}
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// Commit() shouldn't change anything of the bug state apart from the
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// initial ID set
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if b.snap == nil {
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return nil
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}
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b.snap.id = b.Bug.Id()
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return nil
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}
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// Merge intercept Bug.Merge() and clear the snapshot
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func (b *WithSnapshot) Merge(repo repository.Repo, other Interface) (bool, error) {
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b.snap = nil
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return b.Bug.Merge(repo, other)
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}
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