| commit | 923cd87ac8550a8e277bfeb19198a11b6a8ed854 | [log] [tgz] |
|---|---|---|
| author | Jerry Zhang <jerry@skydio.com> | Tue Apr 06 16:25:32 2021 -0700 |
| committer | Junio C Hamano <gitster@pobox.com> | Tue Apr 06 17:11:41 2021 -0700 |
| tree | c52acf27d606da3c6e8dee0e9bafd010c5986c78 | |
| parent | 2e36527f23b7f6ae15e6f21ac3b08bf3fed6ee48 [diff] |
git-apply: try threeway first when "--3way" is used The apply_fragments() method of "git apply" can silently apply patches incorrectly if a file has repeating contents. In these cases a three-way merge is capable of applying it correctly in more situations, and will show a conflict rather than applying it incorrectly. However, because the patches apply "successfully" using apply_fragments(), git will never fall back to the merge, even if the "--3way" flag is used, and the user has no way to ensure correctness by forcing the three-way merge method. Change the behavior so that when "--3way" is used, git will always try the three-way merge first and will only fall back to apply_fragments() in cases where blobs are not available or some other error (but not in the case of a merge conflict). Since user-facing results will be different, this has backwards compatibility implications for users depending on the old behavior. In addition, the three-way merge will be slower than direct patch application. Signed-off-by: Jerry Zhang <jerry@skydio.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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