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[git] Update references changed on the remote repo only #853

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merged 1 commit into from
Dec 4, 2024
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[git] Update references changed on the remote repo only #853

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6 changes: 6 additions & 0 deletions perceval/backends/core/git.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1304,6 +1304,8 @@ def _update_references(self, refs):
self._update_ref(old_ref, delete=True)

# Update new references
current_refs = {ref.refname: ref.hash for ref in self._discover_refs()}

for new_ref in refs:
refname = new_ref.refname

Expand All @@ -1315,6 +1317,10 @@ def _update_references(self, refs):
logger.debug("Reference %s not needed; ignored for updating in sync process",
refname)
continue
elif refname in current_refs and new_ref.hash == current_refs[refname]:
logger.debug("Reference %s already up to date in sync process",
refname)
continue
else:
self._update_ref(new_ref)

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14 changes: 14 additions & 0 deletions releases/unreleased/git-sync-perfomance-improved.yml
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@@ -0,0 +1,14 @@
---
title: Git sync improved for `--latest-items` flag
category: performance
author: Santiago Dueñas <sduenas@bitergia.com>
issue: null
notes: >
The speed updating a git repository when `--lates-items`
is set was very poor. The main problem was when the
references were updated to the new hashes. All the
active refs on the repository were modified, even when
they were up-to-date. Now, only references updated
on the remote repository are modified on the local one.
Repositories are synched 2 times faster than before.

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