commit | ab5af825db8beaf623f8ac95e4b4179ec1b9569e | [log] [tgz] |
---|---|---|
author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | Mon Mar 18 18:38:22 2019 +0700 |
committer | Junio C Hamano <gitster@pobox.com> | Thu Mar 21 12:06:28 2019 +0900 |
tree | ddb45cb5e931b8936092c75a8b668077e5e0d565 | |
parent | 0e94f7aa730b108f7907cfab1b2a7fba965de442 [diff] |
unpack-trees: fix oneway_merge accidentally carry over stage index Phillip found out that 'git checkout -f <branch>' does not restore conflict/unmerged files correctly. All tracked files should be taken from <branch> and all non-zero stages removed. Most of this is true, except that the final file could be in stage one instead of zero. "checkout -f" (among other commands) does this with one-way merge, which is supposed to take stat info from the index and everything else from the given tree. The add_entry(.., old, ...) call in oneway_merge() though will keep stage index from the index. This is normally not a problem if the entry from the index is normal (stage #0). But if there is a conflict, stage #0 does not exist and we'll get stage #1 entry as "old" variable, which gets recorded in the final index. Fix it by clearing stage mask. This bug probably comes from b5b425074e (git-read-tree: make one-way merge also honor the "update" flag, 2005-06-07). Before this commit, we may create the final ("dst") index entry from the one in index, but we do clear CE_STAGEMASK. I briefly checked two- and three-way merge functions. I think we don't have the same problem in those. Reported-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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