Documentation / git-pull.txton commit Merge branch 'tc/http-urls-ends-with-slash' into maint (6b090e1)
   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-----------
  16
  17Incorporates changes from a remote repository into the current
  18branch.  In its default mode, `git pull` is shorthand for
  19`git fetch` followed by `git merge FETCH_HEAD`.
  20
  21More precisely, 'git pull' runs 'git fetch' with the given
  22parameters and calls 'git merge' to merge the retrieved branch
  23heads into the current branch.
  24With `--rebase`, it runs 'git rebase' instead of 'git merge'.
  25
  26<repository> should be the name of a remote repository as
  27passed to linkgit:git-fetch[1].  <refspec> can name an
  28arbitrary remote ref (for example, the name of a tag) or even
  29a collection of refs with corresponding remote tracking branches
  30(e.g., refs/heads/{asterisk}:refs/remotes/origin/{asterisk}),
  31but usually it is the name of a branch in the remote repository.
  32
  33Default values for <repository> and <branch> are read from the
  34"remote" and "merge" configuration for the current branch
  35as set by linkgit:git-branch[1] `--track`.
  36
  37Assume the following history exists and the current branch is
  38"`master`":
  39
  40------------
  41          A---B---C master on origin
  42         /
  43    D---E---F---G master
  44------------
  45
  46Then "`git pull`" will fetch and replay the changes from the remote
  47`master` branch since it diverged from the local `master` (i.e., `E`)
  48until its current commit (`C`) on top of `master` and record the
  49result in a new commit along with the names of the two parent commits
  50and a log message from the user describing the changes.
  51
  52------------
  53          A---B---C remotes/origin/master
  54         /         \
  55    D---E---F---G---H master
  56------------
  57
  58See linkgit:git-merge[1] for details, including how conflicts
  59are presented and handled.
  60
  61In git 1.7.0 or later, to cancel a conflicting merge, use
  62`git reset --merge`.  *Warning*: In older versions of git, running 'git pull'
  63with uncommitted changes is discouraged: while possible, it leaves you
  64in a state that may be hard to back out of in the case of a conflict.
  65
  66If any of the remote changes overlap with local uncommitted changes,
  67the merge will be automatically cancelled and the work tree untouched.
  68It is generally best to get any local changes in working order before
  69pulling or stash them away with linkgit:git-stash[1].
  70
  71OPTIONS
  72-------
  73
  74Options meant for 'git pull' itself and the underlying 'git merge'
  75must be given before the options meant for 'git fetch'.
  76
  77-q::
  78--quiet::
  79        This is passed to both underlying git-fetch to squelch reporting of
  80        during transfer, and underlying git-merge to squelch output during
  81        merging.
  82
  83-v::
  84--verbose::
  85        Pass --verbose to git-fetch and git-merge.
  86
  87Options related to merging
  88~~~~~~~~~~~~~~~~~~~~~~~~~~
  89
  90include::merge-options.txt[]
  91
  92:git-pull: 1
  93
  94--rebase::
  95        Rebase the current branch on top of the upstream branch after
  96        fetching.  If there is a remote-tracking branch corresponding to
  97        the upstream branch and the upstream branch was rebased since last
  98        fetched, the rebase uses that information to avoid rebasing
  99        non-local changes.
 100+
 101See `branch.<name>.rebase` in linkgit:git-config[1] if you want to make
 102`git pull` always use `{litdd}rebase` instead of merging.
 103+
 104[NOTE]
 105This is a potentially _dangerous_ mode of operation.
 106It rewrites history, which does not bode well when you
 107published that history already.  Do *not* use this option
 108unless you have read linkgit:git-rebase[1] carefully.
 109
 110--no-rebase::
 111        Override earlier --rebase.
 112
 113Options related to fetching
 114~~~~~~~~~~~~~~~~~~~~~~~~~~~
 115
 116include::fetch-options.txt[]
 117
 118include::pull-fetch-param.txt[]
 119
 120include::urls-remotes.txt[]
 121
 122include::merge-strategies.txt[]
 123
 124DEFAULT BEHAVIOUR
 125-----------------
 126
 127Often people use `git pull` without giving any parameter.
 128Traditionally, this has been equivalent to saying `git pull
 129origin`.  However, when configuration `branch.<name>.remote` is
 130present while on branch `<name>`, that value is used instead of
 131`origin`.
 132
 133In order to determine what URL to use to fetch from, the value
 134of the configuration `remote.<origin>.url` is consulted
 135and if there is not any such variable, the value on `URL: ` line
 136in `$GIT_DIR/remotes/<origin>` file is used.
 137
 138In order to determine what remote branches to fetch (and
 139optionally store in the tracking branches) when the command is
 140run without any refspec parameters on the command line, values
 141of the configuration variable `remote.<origin>.fetch` are
 142consulted, and if there aren't any, `$GIT_DIR/remotes/<origin>`
 143file is consulted and its `Pull: ` lines are used.
 144In addition to the refspec formats described in the OPTIONS
 145section, you can have a globbing refspec that looks like this:
 146
 147------------
 148refs/heads/*:refs/remotes/origin/*
 149------------
 150
 151A globbing refspec must have a non-empty RHS (i.e. must store
 152what were fetched in tracking branches), and its LHS and RHS
 153must end with `/*`.  The above specifies that all remote
 154branches are tracked using tracking branches in
 155`refs/remotes/origin/` hierarchy under the same name.
 156
 157The rule to determine which remote branch to merge after
 158fetching is a bit involved, in order not to break backward
 159compatibility.
 160
 161If explicit refspecs were given on the command
 162line of `git pull`, they are all merged.
 163
 164When no refspec was given on the command line, then `git pull`
 165uses the refspec from the configuration or
 166`$GIT_DIR/remotes/<origin>`.  In such cases, the following
 167rules apply:
 168
 169. If `branch.<name>.merge` configuration for the current
 170  branch `<name>` exists, that is the name of the branch at the
 171  remote site that is merged.
 172
 173. If the refspec is a globbing one, nothing is merged.
 174
 175. Otherwise the remote branch of the first refspec is merged.
 176
 177
 178EXAMPLES
 179--------
 180
 181* Update the remote-tracking branches for the repository
 182  you cloned from, then merge one of them into your
 183  current branch:
 184+
 185------------------------------------------------
 186$ git pull, git pull origin
 187------------------------------------------------
 188+
 189Normally the branch merged in is the HEAD of the remote repository,
 190but the choice is determined by the branch.<name>.remote and
 191branch.<name>.merge options; see linkgit:git-config[1] for details.
 192
 193* Merge into the current branch the remote branch `next`:
 194+
 195------------------------------------------------
 196$ git pull origin next
 197------------------------------------------------
 198+
 199This leaves a copy of `next` temporarily in FETCH_HEAD, but
 200does not update any remote-tracking branches. Using remote-tracking
 201branches, the same can be done by invoking fetch and merge:
 202+
 203------------------------------------------------
 204$ git fetch origin
 205$ git merge origin/next
 206------------------------------------------------
 207
 208
 209If you tried a pull which resulted in a complex conflicts and
 210would want to start over, you can recover with 'git reset'.
 211
 212
 213SEE ALSO
 214--------
 215linkgit:git-fetch[1], linkgit:git-merge[1], linkgit:git-config[1]
 216
 217
 218Author
 219------
 220Written by Linus Torvalds <torvalds@osdl.org>
 221and Junio C Hamano <gitster@pobox.com>
 222
 223Documentation
 224--------------
 225Documentation by Jon Loeliger,
 226David Greaves,
 227Junio C Hamano and the git-list <git@vger.kernel.org>.
 228
 229GIT
 230---
 231Part of the linkgit:git[1] suite