git-merge-into (1) Linux Manual Page
git-merge-into – Merge one branch into another
Synopsis
git merge-into [src] <dest> [–ff-only]Description
Merge one branch into another, and keep yourself on current branch. If src branch not given, it will merge current one to dest.Options
<src>The name of the branch will be merged into. If this not given, use current branch as default.
<dest>
The name of the branch to merge into.
–ff-only
Refuse to merge and exit with a non-zero status unless the current HEAD is already up-to-date or the merge can be resolved as a fast-forward.
Examples
Assume the following history exists and the current branch is src:A—B—C src(current)
/
D—E—F—G dest
After running git merge-into dest, it will look like this:
A—B—C src(current)
/ \
D—E—F—G—H dest
The H commit will record the merge result, just like what git merge does. And src is still the current branch.
The default implementation of merge-into use git checkout and git merge, which may cause temporary change in the working tree. If you make sure your branch can be merged fast-forward, add –ff-only to avoid files change.