commit | e88aab917e0dc3e99af8fb0f3ecbef66ac3e49b6 | [log] [tgz] |
---|---|---|
author | Derrick Stolee <dstolee@microsoft.com> | Thu Oct 24 13:40:41 2019 +0000 |
committer | Junio C Hamano <gitster@pobox.com> | Fri Oct 25 11:19:14 2019 +0900 |
tree | ae998fc04a1933a947cdeeb92dcb70c7da6ff7f4 | |
parent | 50f26bd035816c2bb79582b834d59b49292502a9 [diff] |
t5510-fetch.sh: demonstrate fetch.writeCommitGraph bug While dogfooding, Johannes found a bug in the fetch.writeCommitGraph config behavior. His example initially happened during a clone with --recurse-submodules, we found that this happens with the first fetch after cloning a repository that contains a submodule: $ git clone <url> test $ cd test $ git -c fetch.writeCommitGraph=true fetch origin Computing commit graph generation numbers: 100% (12/12), done. BUG: commit-graph.c:886: missing parent <hash1> for commit <hash2> Aborted (core dumped) In the repo I had cloned, there were really 60 commits to scan, but only 12 were in the list to write when calling compute_generation_numbers(). A commit in the list expects to see a parent, but that parent is not in the list. A follow-up will fix the bug, but first we create a test that demonstrates the problem. This test must be careful about an existing commit-graph file, since GIT_TEST_COMMIT_GRAPH=1 will cause the repo we are cloning to already have one. This then prevents the incremtnal commit-graph write during the first 'git fetch'. Helped-by: Jeff King <peff@peff.net> Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Szeder Gábor <szeder.dev@gmail.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.
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or git help cvs-migration
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