git-mirror/Documentation/git-pull.adoc

git-pull(1)
===========

NAME
----
git-pull - Fetch from and integrate with another repository or a local branch


SYNOPSIS
--------
[verse]
'git pull' [<options>] [<repository> [<refspec>...]]


DESCRIPTION
-----------

Integrate changes from a remote repository into the current branch.

First, `git pull` runs `git fetch` with the same arguments
(excluding merge options) to fetch remote branch(es).
Then it decides which remote branch to integrate: if you run `git pull`
with no arguments this defaults to the <<UPSTREAM-BRANCHES,upstream>>
for the current branch.
Then it integrates that branch into the current branch.

There are 4 main options for integrating the remote branch:

1. `git pull --ff-only` will only do "fast-forward" updates: it
   fails if your local branch has diverged from the remote branch.
   This is the default.
2. `git pull --rebase` runs `git rebase`
3. `git pull --no-rebase` runs `git merge`.
4. `git pull --squash` runs `git merge --squash`

You can also set the configuration options `pull.rebase`, `pull.squash`,
or `pull.ff` with your preferred behaviour.

If there's a merge conflict during the merge or rebase that you don't
want to handle, you can safely abort it with `git merge --abort` or `git
--rebase abort`.

OPTIONS
-------

<repository>::
	The "remote" repository to pull from.  This can be either
	a URL (see the section <<URLS,GIT URLS>> below) or the name
	of a remote (see the section <<REMOTES,REMOTES>> below).
+
Defaults to the configured upstream for the current branch, or `origin`.
See <<UPSTREAM-BRANCHES,UPSTREAM BRANCHES>> below for more on how to
configure upstreams.

<refspec>::
	Which branch or other reference(s) to fetch and integrate into the
	current branch, for example `main` in `git pull origin main`.
	Defaults to the configured upstream for the current branch.
+
This can be a branch, tag, or other collection of reference(s).
See <<fetch-refspec,<refspec>>> below under "Options related to fetching"
for the full syntax, and <<DEFAULT-BEHAVIOUR,DEFAULT BEHAVIOUR>> below
for how `git pull` uses this argument to determine which remote branch
to integrate.

-q::
--quiet::
	This is passed to both underlying git-fetch to squelch reporting of
	during transfer, and underlying git-merge to squelch output during
	merging.

-v::
--verbose::
	Pass --verbose to git-fetch and git-merge.

--recurse-submodules[=(yes|on-demand|no)]::
--no-recurse-submodules::
	This option controls if new commits of populated submodules should
	be fetched, and if the working trees of active submodules should be
	updated, too (see linkgit:git-fetch[1], linkgit:git-config[1] and
	linkgit:gitmodules[5]).
+
If the checkout is done via rebase, local submodule commits are rebased as well.
+
If the update is done via merge, the submodule conflicts are resolved and checked out.

Options related to merging
~~~~~~~~~~~~~~~~~~~~~~~~~~

:git-pull: 1

include::merge-options.adoc[]

-r::
--rebase[=(false|true|merges|interactive)]::
	When true, rebase the current branch on top of the upstream
	branch after fetching. If there is a remote-tracking branch
	corresponding to the upstream branch and the upstream branch
	was rebased since last fetched, the rebase uses that information
	to avoid rebasing non-local changes.
+
When set to `merges`, rebase using `git rebase --rebase-merges` so that
the local merge commits are included in the rebase (see
linkgit:git-rebase[1] for details).
+
When false, merge the upstream branch into the current branch.
+
When `interactive`, enable the interactive mode of rebase.
+
See `pull.rebase`, `branch.<name>.rebase` and `branch.autoSetupRebase` in
linkgit:git-config[1] if you want to make `git pull` always use
`--rebase` instead of merging.
+
[NOTE]
This is a potentially _dangerous_ mode of operation.
It rewrites history, which does not bode well when you
published that history already.  Do *not* use this option
unless you have read linkgit:git-rebase[1] carefully.

--no-rebase::
	This is shorthand for --rebase=false.

Options related to fetching
~~~~~~~~~~~~~~~~~~~~~~~~~~~

include::fetch-options.adoc[]

include::pull-fetch-param.adoc[]

include::urls-remotes.adoc[]

include::merge-strategies.adoc[]

[[DEFAULT-BEHAVIOUR]]
DEFAULT BEHAVIOUR
-----------------

Often people use `git pull` without giving any parameter.
Traditionally, this has been equivalent to saying `git pull
origin`.  However, when configuration `branch.<name>.remote` is
present while on branch `<name>`, that value is used instead of
`origin`.

In order to determine what URL to use to fetch from, the value
of the configuration `remote.<origin>.url` is consulted
and if there is not any such variable, the value on the `URL:` line
in `$GIT_DIR/remotes/<origin>` is used.

In order to determine what remote branches to fetch (and
optionally store in the remote-tracking branches) when the command is
run without any refspec parameters on the command line, values
of the configuration variable `remote.<origin>.fetch` are
consulted, and if there aren't any, `$GIT_DIR/remotes/<origin>`
is consulted and its `Pull:` lines are used.
In addition to the refspec formats described in the OPTIONS
section, you can have a globbing refspec that looks like this:

------------
refs/heads/*:refs/remotes/origin/*
------------

A globbing refspec must have a non-empty RHS (i.e. must store
what were fetched in remote-tracking branches), and its LHS and RHS
must end with `/*`.  The above specifies that all remote
branches are tracked using remote-tracking branches in
`refs/remotes/origin/` hierarchy under the same name.

The rule to determine which remote branch to merge after
fetching is a bit involved, in order not to break backward
compatibility.

If explicit refspecs were given on the command
line of `git pull`, they are all merged.

When no refspec was given on the command line, then `git pull`
uses the refspec from the configuration or
`$GIT_DIR/remotes/<origin>`.  In such cases, the following
rules apply:

. If `branch.<name>.merge` configuration for the current
  branch `<name>` exists, that is the name of the branch at the
  remote site that is merged.

. If the refspec is a globbing one, nothing is merged.

. Otherwise the remote branch of the first refspec is merged.


EXAMPLES
--------

* Update the remote-tracking branches for the repository
  you cloned from, then merge one of them into your
  current branch:
+
------------------------------------------------
$ git pull
$ git pull origin
------------------------------------------------
+
Normally the branch merged in is the HEAD of the remote repository,
but the choice is determined by the branch.<name>.remote and
branch.<name>.merge options; see linkgit:git-config[1] for details.

* Merge into the current branch the remote branch `next`:
+
------------------------------------------------
$ git pull origin next
------------------------------------------------
+
This leaves a copy of `next` temporarily in FETCH_HEAD, and
updates the remote-tracking branch `origin/next`.
The same can be done by invoking fetch and merge:
+
------------------------------------------------
$ git fetch origin
$ git merge origin/next
------------------------------------------------


If you tried a pull which resulted in complex conflicts and
would want to start over, you can recover with 'git reset'.


include::transfer-data-leaks.adoc[]

BUGS
----
Using --recurse-submodules can only fetch new commits in already checked
out submodules right now. When e.g. upstream added a new submodule in the
just fetched commits of the superproject the submodule itself cannot be
fetched, making it impossible to check out that submodule later without
having to do a fetch again. This is expected to be fixed in a future Git
version.

SEE ALSO
--------
linkgit:git-fetch[1], linkgit:git-merge[1], linkgit:git-config[1]

GIT
---
Part of the linkgit:git[1] suite