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rewrite: use intersperse() to interleave new/old commit ids

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This is stricter than from_legacy_from() in that wrong number of add/remove
terms will panic.
This commit is contained in:
Yuya Nishihara 2024-09-01 13:52:52 +09:00
parent 1b6617bbd7
commit 38bd5fbf32
1 changed files with 7 additions and 5 deletions
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12
lib/src/repo.rs
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@ -20,7 +20,6 @@ use std::collections::HashSet;
use std::fmt::Debug;
use std::fmt::Formatter;
use std::fs;
use std::iter;
use std::path::Path;
use std::path::PathBuf;
use std::slice;
@ -57,6 +56,7 @@ use crate::index::IndexStore;
use crate::index::MutableIndex;
use crate::index::ReadonlyIndex;
use crate::local_backend::LocalBackend;
use crate::merge::MergeBuilder;
use crate::object_id::HexPrefix;
use crate::object_id::ObjectId;
use crate::object_id::PrefixResolution;
@ -1115,10 +1115,12 @@ impl MutableRepo {
.collect_vec();
for (branch_name, (old_commit_id, new_commit_ids)) in changed_branches {
let old_target = RefTarget::normal(old_commit_id.clone());
assert!(!new_commit_ids.is_empty());
let new_target = RefTarget::from_legacy_form(
iter::repeat(old_commit_id.clone()).take(new_commit_ids.len() - 1),
new_commit_ids.iter().cloned(),
let new_target = RefTarget::from_merge(
MergeBuilder::from_iter(
itertools::intersperse(new_commit_ids, old_commit_id)
.map(|id| Some(id.clone())),
)
.build(),
);
self.merge_local_branch(&branch_name, &old_target, &new_target);
}