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package ingest
import (
"fmt"
"codeberg.org/lindenii/furgit/objectid"
)
// streamPackAndScan copies src into temp .pack while scanning packed entries.
func streamPackAndScan(state *ingestState) error {
hashImpl, err := state.algo.New()
if err != nil {
return err
}
state.stream = newStreamScanner(
state.src,
state.packFile,
hashImpl,
state.algo.Size(),
)
err = readAndValidatePackHeader(state)
if err != nil {
return err
}
state.records = make([]objectRecord, 0, state.objectCountHeader)
state.ofsDeltas = make([]ofsDeltaRef, 0, state.objectCountHeader)
state.refDeltas = make([]refDeltaRef, 0, state.objectCountHeader)
for range state.objectCountHeader {
nextOffset, err := scanOneEntry(state, state.stream.consumed)
if err != nil {
return err
}
if nextOffset != state.stream.consumed {
return fmt.Errorf("format/pack/ingest: internal stream offset mismatch")
}
}
err = state.stream.finishAndFlushTrailer()
if err != nil {
return err
}
if len(state.stream.packTrailer) != state.algo.Size() {
return fmt.Errorf("format/pack/ingest: invalid trailer size")
}
packHash, err := objectid.FromBytes(state.algo, state.stream.packTrailer)
if err != nil {
return err
}
state.packHash = packHash
return state.stream.flush()
}
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