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Improve section "Merging multiple trees"

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Remove unnecessary quoting.
Simplify description of three-way merge.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Thomas Ackermann 2013-08-27 20:03:09 +02:00 committed by Junio C Hamano
parent df47da758e
commit e8e9964de4
1 changed files with 13 additions and 14 deletions
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27
Documentation/user-manual.txt
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@ -4004,27 +4004,26 @@ to see what the top commit was.
Merging multiple trees
----------------------
Git helps you do a three-way merge, which you can expand to n-way by
repeating the merge procedure arbitrary times until you finally
"commit" the state. The normal situation is that you'd only do one
three-way merge (two parents), and commit it, but if you like to, you
can do multiple parents in one go.
Git can help you perform a three-way merge, which can in turn be
used for a many-way merge by repeating the merge procedure several
times. The usual situation is that you only do one three-way merge
(reconciling two lines of history) and commit the result, but if
you like to, you can merge several branches in one go.
To do a three-way merge, you need the two sets of "commit" objects
that you want to merge, use those to find the closest common parent (a
third "commit" object), and then use those commit objects to find the
state of the directory ("tree" object) at these points.
To perform a three-way merge, you start with the two commits you
want to merge, find their closest common parent (a third commit),
and compare the trees corresponding to these three commits.
To get the "base" for the merge, you first look up the common parent
of two commits with
To get the "base" for the merge, look up the common parent of two
commits:
-------------------------------------------------
$ git merge-base <commit1> <commit2>
-------------------------------------------------
which will return you the commit they are both based on. You should
now look up the "tree" objects of those commits, which you can easily
do with (for example)
This prints the name of a commit they are both based on. You should
now look up the tree objects of those commits, which you can easily
do with
-------------------------------------------------
$ git cat-file commit <commitname> | head -1