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scan_previous_versions

git_lfs_git::scanner

Function scan_previous_versions 

Source 
pub fn scan_previous_versions(
    cwd: &Path,
    reference: &str,
    since: SystemTime,
) -> Result<Vec<PointerEntry>, Error>
Expand description

Walk git log -G "oid sha256:" -p <ref> since since, returning every LFS pointer that appears as the previous state of a modified file (i.e. lives on the - side of a unified diff).

Mirrors upstream’s lfs/gitscanner_log.go::logPreviousSHAs. Used by fetch-recent (to download pre-images of recently-modified files) and by prune retention (to keep them on disk).

-U12 is requested so a small in-place edit still surfaces enough surrounding context to capture the full pointer body (version, oid, size, optional ext-N lines).