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internal/era/eradl: add DownloadEpochRange

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This commit is contained in:
Felix Lange 2025-05-14 09:59:15 +02:00
parent 925f5d2c0c
commit 4159c31216
1 changed files with 8 additions and 4 deletions
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12
internal/era/eradl/eradl.go
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@ -86,21 +86,25 @@ func (l *Loader) DownloadAll(destDir string) error {
// DownloadBlockRange fetches the era1 files for the given block range.
func (l *Loader) DownloadBlockRange(start, end uint64, destDir string) error {
startEpoch := int(start / uint64(era.MaxEra1Size))
endEpoch := int(end / uint64(era.MaxEra1Size))
startEpoch := start / uint64(era.MaxEra1Size)
endEpoch := end / uint64(era.MaxEra1Size)
return l.DownloadEpochRange(startEpoch, endEpoch, destDir)
}
// DownloadEpochRange fetches the era1 files in the given epoch range.
func (l *Loader) DownloadEpochRange(start, end uint64, destDir string) error {
pat := regexp.MustCompile(regexp.QuoteMeta(l.network) + "-([0-9]+)-[0-9a-f]+\\.era1")
for file := range l.csdb.Files() {
m := pat.FindStringSubmatch(file)
if len(m) == 2 {
fileEpoch, _ := strconv.Atoi(m[1])
if fileEpoch >= startEpoch && fileEpoch <= endEpoch {
if uint64(fileEpoch) >= start && uint64(fileEpoch) <= end {
if err := l.download(file, destDir); err != nil {
return err
}
}
}
}
// TODO: detect if blocks are out available era1 range.
return nil
}