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Monorepo for Tangled
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172use std::path::Path;
use knot_git::Repo;
use crate::MaintError;use crate::fsio::{self, MIDX_SIDECAR_PREFIX, PackStem};
pub fn exists(objects_dir: &Path) -> bool { fsio::pack_idx_paths(objects_dir) .iter() .any(|idx| idx.with_extension("bitmap").exists())}
pub fn refresh(repo: &Repo, objects_dir: &Path) -> Result<bool, MaintError> { let idxs = fsio::pack_idx_paths(objects_dir); match idxs.as_slice() { [only] => { let wrote = knot_git::write_bitmap(repo, only) .map_err(|error| MaintError::Pack(error.to_string()))?; let stem = PackStem::of(only); prune_sidecars(objects_dir, stem.as_ref()); Ok(wrote) } [] => { prune_sidecars(objects_dir, None); Ok(false) } _ => { let wrote = knot_git::write_midx_bitmap(repo) .map_err(|error| MaintError::Pack(error.to_string()))?; let keep = current_midx_stem(objects_dir); prune_sidecars(objects_dir, keep.as_ref()); Ok(wrote) } }}
fn current_midx_stem(objects_dir: &Path) -> Option<PackStem> { let path = objects_dir.join("pack").join("multi-pack-index"); let file = gix_pack::multi_index::File::at(path, Some(crate::midx::MIDX_ALLOC_LIMIT_BYTES)).ok()?; Some(PackStem::midx_sidecar( &file.checksum().to_hex().to_string(), ))}
fn prune_sidecars(objects_dir: &Path, keep_stem: Option<&PackStem>) { let pack_dir = objects_dir.join("pack"); let Ok(entries) = std::fs::read_dir(&pack_dir) else { return; }; entries .filter_map(Result::ok) .map(|entry| entry.path()) .filter(|path| is_bitmap_sidecar(path)) .filter(|path| PackStem::of(path).as_ref() != keep_stem) .for_each(|path| { let _ = std::fs::remove_file(path); });}
fn is_bitmap_sidecar(path: &Path) -> bool { match path.extension().and_then(|ext| ext.to_str()) { Some("bitmap") => true, Some("rev") => path .file_name() .and_then(|name| name.to_str()) .is_some_and(|name| name.starts_with(MIDX_SIDECAR_PREFIX)), _ => false, }}