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index: move ReadonlyRepo::load_at_operation() to IndexStore

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This commit is contained in:
Martin von Zweigbergk 2021-03-02 22:48:08 -08:00
parent 12bfbc489c
commit c4fe7aab10
2 changed files with 29 additions and 22 deletions
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19
lib/src/index.rs
View file

@ -1283,7 +1283,7 @@ impl IndexEntry<'_> {
}
impl ReadonlyIndex {
fn load_from(
pub(crate) fn load_from(
file: &mut dyn Read,
dir: PathBuf,
name: String,
@ -1344,23 +1344,6 @@ impl ReadonlyIndex {
}))
}
pub fn load_at_operation(
dir: PathBuf,
hash_length: usize,
op_id: &OperationId,
) -> io::Result<Arc<ReadonlyIndex>> {
let op_id_file = dir.join("operations").join(op_id.hex());
let mut buf = vec![];
File::open(op_id_file)
.unwrap()
.read_to_end(&mut buf)
.unwrap();
let index_file_id_hex = String::from_utf8(buf).unwrap();
let index_file_path = dir.join(&index_file_id_hex);
let mut index_file = File::open(&index_file_path).unwrap();
ReadonlyIndex::load_from(&mut index_file, dir, index_file_id_hex, hash_length)
}
/// Records a link from the given operation to the this index version.
pub fn associate_with_operation(&self, op_id: &OperationId) -> io::Result<()> {
let mut temp_file = NamedTempFile::new_in(&self.dir)?;

32
lib/src/index_store.rs
View file

@ -21,7 +21,9 @@ use crate::repo::ReadonlyRepo;
use crate::store::CommitId;
use crate::store_wrapper::StoreWrapper;
use std::collections::{HashMap, HashSet};
use std::fs::File;
use std::io;
use std::io::Read;
use std::path::PathBuf;
use std::sync::Arc;
@ -49,7 +51,7 @@ impl IndexStore {
let op_id_file = self.dir.join("operations").join(&op_id_hex);
if op_id_file.exists() {
let op_id = OperationId(hex::decode(op_id_hex).unwrap());
ReadonlyIndex::load_at_operation(self.dir.clone(), repo.store().hash_length(), &op_id)
self.load_index_at_operation(repo.store().hash_length(), &op_id)
.unwrap()
} else {
let op = repo.view().as_view_ref().get_operation(&op_id).unwrap();
@ -57,6 +59,28 @@ impl IndexStore {
}
}
fn load_index_at_operation(
&self,
hash_length: usize,
op_id: &OperationId,
) -> io::Result<Arc<ReadonlyIndex>> {
let op_id_file = self.dir.join("operations").join(op_id.hex());
let mut buf = vec![];
File::open(op_id_file)
.unwrap()
.read_to_end(&mut buf)
.unwrap();
let index_file_id_hex = String::from_utf8(buf).unwrap();
let index_file_path = self.dir.join(&index_file_id_hex);
let mut index_file = File::open(&index_file_path).unwrap();
ReadonlyIndex::load_from(
&mut index_file,
self.dir.clone(),
index_file_id_hex,
hash_length,
)
}
fn index_at_operation(
&self,
store: &StoreWrapper,
@ -90,9 +114,9 @@ impl IndexStore {
data = MutableIndex::full(self.dir.clone(), hash_length);
}
Some(parent_op_id) => {
let parent_file =
ReadonlyIndex::load_at_operation(self.dir.clone(), hash_length, &parent_op_id)
.unwrap();
let parent_file = self
.load_index_at_operation(hash_length, &parent_op_id)
.unwrap();
maybe_parent_file = Some(parent_file.clone());
data = MutableIndex::incremental(parent_file)
}