Documentation / git-pull.txton commit setenv(GIT_DIR) clean-up (717c397)
   1git-pull(1)
   2===========
   3
   4NAME
   5----
   6git-pull - Fetch from and merge with another repository or a local branch
   7
   8
   9SYNOPSIS
  10--------
  11'git pull' <options> <repository> <refspec>...
  12
  13
  14DESCRIPTION
  15-----------
  16Runs 'git fetch' with the given parameters, and calls 'git merge'
  17to merge the retrieved head(s) into the current branch.
  18With `--rebase`, calls 'git rebase' instead of 'git merge'.
  19
  20Note that you can use `.` (current directory) as the
  21<repository> to pull from the local repository -- this is useful
  22when merging local branches into the current branch.
  23
  24Also note that options meant for 'git pull' itself and underlying
  25'git merge' must be given before the options meant for 'git fetch'.
  26
  27*Warning*: Running 'git pull' (actually, the underlying 'git merge')
  28with uncommitted changes is discouraged: while possible, it leaves you
  29in a state that is hard to back out of in the case of a conflict.
  30
  31OPTIONS
  32-------
  33
  34Options related to merging
  35~~~~~~~~~~~~~~~~~~~~~~~~~~
  36
  37include::merge-options.txt[]
  38
  39:git-pull: 1
  40
  41--rebase::
  42        Instead of a merge, perform a rebase after fetching.  If
  43        there is a remote ref for the upstream branch, and this branch
  44        was rebased since last fetched, the rebase uses that information
  45        to avoid rebasing non-local changes. To make this the default
  46        for branch `<name>`, set configuration `branch.<name>.rebase`
  47        to `true`.
  48+
  49[NOTE]
  50This is a potentially _dangerous_ mode of operation.
  51It rewrites history, which does not bode well when you
  52published that history already.  Do *not* use this option
  53unless you have read linkgit:git-rebase[1] carefully.
  54
  55--no-rebase::
  56        Override earlier --rebase.
  57
  58Options related to fetching
  59~~~~~~~~~~~~~~~~~~~~~~~~~~~
  60
  61include::fetch-options.txt[]
  62
  63include::pull-fetch-param.txt[]
  64
  65include::urls-remotes.txt[]
  66
  67include::merge-strategies.txt[]
  68
  69DEFAULT BEHAVIOUR
  70-----------------
  71
  72Often people use `git pull` without giving any parameter.
  73Traditionally, this has been equivalent to saying `git pull
  74origin`.  However, when configuration `branch.<name>.remote` is
  75present while on branch `<name>`, that value is used instead of
  76`origin`.
  77
  78In order to determine what URL to use to fetch from, the value
  79of the configuration `remote.<origin>.url` is consulted
  80and if there is not any such variable, the value on `URL: ` line
  81in `$GIT_DIR/remotes/<origin>` file is used.
  82
  83In order to determine what remote branches to fetch (and
  84optionally store in the tracking branches) when the command is
  85run without any refspec parameters on the command line, values
  86of the configuration variable `remote.<origin>.fetch` are
  87consulted, and if there aren't any, `$GIT_DIR/remotes/<origin>`
  88file is consulted and its `Pull: ` lines are used.
  89In addition to the refspec formats described in the OPTIONS
  90section, you can have a globbing refspec that looks like this:
  91
  92------------
  93refs/heads/*:refs/remotes/origin/*
  94------------
  95
  96A globbing refspec must have a non-empty RHS (i.e. must store
  97what were fetched in tracking branches), and its LHS and RHS
  98must end with `/*`.  The above specifies that all remote
  99branches are tracked using tracking branches in
 100`refs/remotes/origin/` hierarchy under the same name.
 101
 102The rule to determine which remote branch to merge after
 103fetching is a bit involved, in order not to break backward
 104compatibility.
 105
 106If explicit refspecs were given on the command
 107line of `git pull`, they are all merged.
 108
 109When no refspec was given on the command line, then `git pull`
 110uses the refspec from the configuration or
 111`$GIT_DIR/remotes/<origin>`.  In such cases, the following
 112rules apply:
 113
 114. If `branch.<name>.merge` configuration for the current
 115  branch `<name>` exists, that is the name of the branch at the
 116  remote site that is merged.
 117
 118. If the refspec is a globbing one, nothing is merged.
 119
 120. Otherwise the remote branch of the first refspec is merged.
 121
 122
 123EXAMPLES
 124--------
 125
 126* Update the remote-tracking branches for the repository
 127  you cloned from, then merge one of them into your
 128  current branch:
 129+
 130------------------------------------------------
 131$ git pull, git pull origin
 132------------------------------------------------
 133+
 134Normally the branch merged in is the HEAD of the remote repository,
 135but the choice is determined by the branch.<name>.remote and
 136branch.<name>.merge options; see linkgit:git-config[1] for details.
 137
 138* Merge into the current branch the remote branch `next`:
 139+
 140------------------------------------------------
 141$ git pull origin next
 142------------------------------------------------
 143+
 144This leaves a copy of `next` temporarily in FETCH_HEAD, but
 145does not update any remote-tracking branches. Using remote-tracking
 146branches, the same can be done by invoking fetch and merge:
 147+
 148------------------------------------------------
 149$ git fetch origin
 150$ git merge origin/next
 151------------------------------------------------
 152
 153
 154If you tried a pull which resulted in a complex conflicts and
 155would want to start over, you can recover with 'git reset'.
 156
 157
 158SEE ALSO
 159--------
 160linkgit:git-fetch[1], linkgit:git-merge[1], linkgit:git-config[1]
 161
 162
 163Author
 164------
 165Written by Linus Torvalds <torvalds@osdl.org>
 166and Junio C Hamano <gitster@pobox.com>
 167
 168Documentation
 169--------------
 170Documentation by Jon Loeliger,
 171David Greaves,
 172Junio C Hamano and the git-list <git@vger.kernel.org>.
 173
 174GIT
 175---
 176Part of the linkgit:git[1] suite