1GIT-MERGE-INDEX(1) Git Manual GIT-MERGE-INDEX(1)
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6 git-merge-index - Run a merge for files needing merging
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9 git merge-index [-o] [-q] <merge-program> (-a | ( [--] <file>...) )
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12 This looks up the <file>(s) in the index and, if there are any merge
13 entries, passes the SHA-1 hash for those files as arguments 1, 2, 3
14 (empty argument if no file), and <file> as argument 4. File modes for
15 the three files are passed as arguments 5, 6 and 7.
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18 --
19 Do not interpret any more arguments as options.
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21 -a
22 Run merge against all files in the index that need merging.
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24 -o
25 Instead of stopping at the first failed merge, do all of them in
26 one shot - continue with merging even when previous merges returned
27 errors, and only return the error code after all the merges.
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29 -q
30 Do not complain about a failed merge program (a merge program
31 failure usually indicates conflicts during the merge). This is for
32 porcelains which might want to emit custom messages.
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34 If git merge-index is called with multiple <file>s (or -a) then it
35 processes them in turn only stopping if merge returns a non-zero exit
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38 Typically this is run with a script calling Git’s imitation of the
39 merge command from the RCS package.
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41 A sample script called git merge-one-file is included in the
42 distribution.
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44 ALERT ALERT ALERT! The Git "merge object order" is different from the
45 RCS merge program merge object order. In the above ordering, the
46 original is first. But the argument order to the 3-way merge program
47 merge is to have the original in the middle. Don’t ask me why.
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49 Examples:
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51 torvalds@ppc970:~/merge-test> git merge-index cat MM
52 This is MM from the original tree. # original
53 This is modified MM in the branch A. # merge1
54 This is modified MM in the branch B. # merge2
55 This is modified MM in the branch B. # current contents
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57 or
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59 torvalds@ppc970:~/merge-test> git merge-index cat AA MM
60 cat: : No such file or directory
61 This is added AA in the branch A.
62 This is added AA in the branch B.
63 This is added AA in the branch B.
64 fatal: merge program failed
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66 where the latter example shows how git merge-index will stop trying to
67 merge once anything has returned an error (i.e., cat returned an error
68 for the AA file, because it didn’t exist in the original, and thus git
69 merge-index didn’t even try to merge the MM thing).
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72 Part of the git(1) suite
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76Git 2.39.1 2023-01-13 GIT-MERGE-INDEX(1)