git-merge-index - Run a merge for files needing merging


   git merge-index [-o] [-q] <merge-program> (-a | [--] <file>*)


   This looks up the <file>(s) in the index and, if there are any merge
   entries, passes the SHA-1 hash for those files as arguments 1, 2, 3
   (empty argument if no file), and <file> as argument 4. File modes for
   the three files are passed as arguments 5, 6 and 7.


       Do not interpret any more arguments as options.

       Run merge against all files in the index that need merging.

       Instead of stopping at the first failed merge, do all of them in
       one shot - continue with merging even when previous merges returned
       errors, and only return the error code after all the merges.

       Do not complain about a failed merge program (a merge program
       failure usually indicates conflicts during the merge). This is for
       porcelains which might want to emit custom messages.

   If git merge-index is called with multiple <file>s (or -a) then it
   processes them in turn only stopping if merge returns a non-zero exit

   Typically this is run with a script calling Git's imitation of the
   merge command from the RCS package.

   A sample script called git merge-one-file is included in the

   ALERT ALERT ALERT! The Git "merge object order" is different from the
   RCS merge program merge object order. In the above ordering, the
   original is first. But the argument order to the 3-way merge program
   merge is to have the original in the middle. Don't ask me why.


       torvalds@ppc970:~/merge-test> git merge-index cat MM
       This is MM from the original tree.                    # original
       This is modified MM in the branch A.                  # merge1
       This is modified MM in the branch B.                  # merge2
       This is modified MM in the branch B.                  # current contents


       torvalds@ppc970:~/merge-test> git merge-index cat AA MM
       cat: : No such file or directory
       This is added AA in the branch A.
       This is added AA in the branch B.
       This is added AA in the branch B.
       fatal: merge program failed

   where the latter example shows how git merge-index will stop trying to
   merge once anything has returned an error (i.e., cat returned an error
   for the AA file, because it didn't exist in the original, and thus git
   merge-index didn't even try to merge the MM thing).


   Part of the git(1) suite


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