Documentation / git-branch.txton commit Merge branch 'as/api-allocation-doc' into maint (ab60f2c)
   1git-branch(1)
   2=============
   3
   4NAME
   5----
   6git-branch - List, create, or delete branches
   7
   8SYNOPSIS
   9--------
  10[verse]
  11'git branch' [--color[=<when>] | --no-color] [-r | -a]
  12        [--list] [-v [--abbrev=<length> | --no-abbrev]]
  13        [--column[=<options>] | --no-column]
  14        [(--merged | --no-merged | --contains) [<commit>]] [<pattern>...]
  15'git branch' [--set-upstream | --track | --no-track] [-l] [-f] <branchname> [<start-point>]
  16'git branch' (--set-upstream-to=<upstream> | -u <upstream>) [<branchname>]
  17'git branch' --unset-upstream [<branchname>]
  18'git branch' (-m | -M) [<oldbranch>] <newbranch>
  19'git branch' (-d | -D) [-r] <branchname>...
  20'git branch' --edit-description [<branchname>]
  21
  22DESCRIPTION
  23-----------
  24
  25With no arguments, existing branches are listed and the current branch will
  26be highlighted with an asterisk.  Option `-r` causes the remote-tracking
  27branches to be listed, and option `-a` shows both. This list mode is also
  28activated by the `--list` option (see below).
  29<pattern> restricts the output to matching branches, the pattern is a shell
  30wildcard (i.e., matched using fnmatch(3)).
  31Multiple patterns may be given; if any of them matches, the branch is shown.
  32
  33With `--contains`, shows only the branches that contain the named commit
  34(in other words, the branches whose tip commits are descendants of the
  35named commit).  With `--merged`, only branches merged into the named
  36commit (i.e. the branches whose tip commits are reachable from the named
  37commit) will be listed.  With `--no-merged` only branches not merged into
  38the named commit will be listed.  If the <commit> argument is missing it
  39defaults to 'HEAD' (i.e. the tip of the current branch).
  40
  41The command's second form creates a new branch head named <branchname>
  42which points to the current 'HEAD', or <start-point> if given.
  43
  44Note that this will create the new branch, but it will not switch the
  45working tree to it; use "git checkout <newbranch>" to switch to the
  46new branch.
  47
  48When a local branch is started off a remote-tracking branch, git sets up the
  49branch so that 'git pull' will appropriately merge from
  50the remote-tracking branch. This behavior may be changed via the global
  51`branch.autosetupmerge` configuration flag. That setting can be
  52overridden by using the `--track` and `--no-track` options, and
  53changed later using `git branch --set-upstream-to`.
  54
  55With a `-m` or `-M` option, <oldbranch> will be renamed to <newbranch>.
  56If <oldbranch> had a corresponding reflog, it is renamed to match
  57<newbranch>, and a reflog entry is created to remember the branch
  58renaming. If <newbranch> exists, -M must be used to force the rename
  59to happen.
  60
  61With a `-d` or `-D` option, `<branchname>` will be deleted.  You may
  62specify more than one branch for deletion.  If the branch currently
  63has a reflog then the reflog will also be deleted.
  64
  65Use `-r` together with `-d` to delete remote-tracking branches. Note, that it
  66only makes sense to delete remote-tracking branches if they no longer exist
  67in the remote repository or if 'git fetch' was configured not to fetch
  68them again. See also the 'prune' subcommand of linkgit:git-remote[1] for a
  69way to clean up all obsolete remote-tracking branches.
  70
  71
  72OPTIONS
  73-------
  74-d::
  75--delete::
  76        Delete a branch. The branch must be fully merged in its
  77        upstream branch, or in `HEAD` if no upstream was set with
  78        `--track` or `--set-upstream`.
  79
  80-D::
  81        Delete a branch irrespective of its merged status.
  82
  83-l::
  84--create-reflog::
  85        Create the branch's reflog.  This activates recording of
  86        all changes made to the branch ref, enabling use of date
  87        based sha1 expressions such as "<branchname>@\{yesterday}".
  88        Note that in non-bare repositories, reflogs are usually
  89        enabled by default by the `core.logallrefupdates` config option.
  90
  91-f::
  92--force::
  93        Reset <branchname> to <startpoint> if <branchname> exists
  94        already. Without `-f` 'git branch' refuses to change an existing branch.
  95
  96-m::
  97--move::
  98        Move/rename a branch and the corresponding reflog.
  99
 100-M::
 101        Move/rename a branch even if the new branch name already exists.
 102
 103--color[=<when>]::
 104        Color branches to highlight current, local, and
 105        remote-tracking branches.
 106        The value must be always (the default), never, or auto.
 107
 108--no-color::
 109        Turn off branch colors, even when the configuration file gives the
 110        default to color output.
 111        Same as `--color=never`.
 112
 113--column[=<options>]::
 114--no-column::
 115        Display branch listing in columns. See configuration variable
 116        column.branch for option syntax.`--column` and `--no-column`
 117        without options are equivalent to 'always' and 'never' respectively.
 118+
 119This option is only applicable in non-verbose mode.
 120
 121-r::
 122--remotes::
 123        List or delete (if used with -d) the remote-tracking branches.
 124
 125-a::
 126--all::
 127        List both remote-tracking branches and local branches.
 128
 129--list::
 130        Activate the list mode. `git branch <pattern>` would try to create a branch,
 131        use `git branch --list <pattern>` to list matching branches.
 132
 133-v::
 134-vv::
 135--verbose::
 136        When in list mode,
 137        show sha1 and commit subject line for each head, along with
 138        relationship to upstream branch (if any). If given twice, print
 139        the name of the upstream branch, as well (see also `git remote
 140        show <remote>`).
 141
 142-q::
 143--quiet::
 144        Be more quiet when creating or deleting a branch, suppressing
 145        non-error messages.
 146
 147--abbrev=<length>::
 148        Alter the sha1's minimum display length in the output listing.
 149        The default value is 7 and can be overridden by the `core.abbrev`
 150        config option.
 151
 152--no-abbrev::
 153        Display the full sha1s in the output listing rather than abbreviating them.
 154
 155-t::
 156--track::
 157        When creating a new branch, set up configuration to mark the
 158        start-point branch as "upstream" from the new branch. This
 159        configuration will tell git to show the relationship between the
 160        two branches in `git status` and `git branch -v`. Furthermore,
 161        it directs `git pull` without arguments to pull from the
 162        upstream when the new branch is checked out.
 163+
 164This behavior is the default when the start point is a remote-tracking branch.
 165Set the branch.autosetupmerge configuration variable to `false` if you
 166want `git checkout` and `git branch` to always behave as if '--no-track'
 167were given. Set it to `always` if you want this behavior when the
 168start-point is either a local or remote-tracking branch.
 169
 170--no-track::
 171        Do not set up "upstream" configuration, even if the
 172        branch.autosetupmerge configuration variable is true.
 173
 174--set-upstream::
 175        If specified branch does not exist yet or if `--force` has been
 176        given, acts exactly like `--track`. Otherwise sets up configuration
 177        like `--track` would when creating the branch, except that where
 178        branch points to is not changed.
 179
 180-u <upstream>::
 181--set-upstream-to=<upstream>::
 182        Set up <branchname>'s tracking information so <upstream> is
 183        considered <branchname>'s upstream branch. If no <branchname>
 184        is specified, then it defaults to the current branch.
 185
 186--unset-upstream::
 187        Remove the upstream information for <branchname>. If no branch
 188        is specified it defaults to the current branch.
 189
 190--edit-description::
 191        Open an editor and edit the text to explain what the branch is
 192        for, to be used by various other commands (e.g. `request-pull`).
 193
 194--contains [<commit>]::
 195        Only list branches which contain the specified commit (HEAD
 196        if not specified).
 197
 198--merged [<commit>]::
 199        Only list branches whose tips are reachable from the
 200        specified commit (HEAD if not specified).
 201
 202--no-merged [<commit>]::
 203        Only list branches whose tips are not reachable from the
 204        specified commit (HEAD if not specified).
 205
 206<branchname>::
 207        The name of the branch to create or delete.
 208        The new branch name must pass all checks defined by
 209        linkgit:git-check-ref-format[1].  Some of these checks
 210        may restrict the characters allowed in a branch name.
 211
 212<start-point>::
 213        The new branch head will point to this commit.  It may be
 214        given as a branch name, a commit-id, or a tag.  If this
 215        option is omitted, the current HEAD will be used instead.
 216
 217<oldbranch>::
 218        The name of an existing branch to rename.
 219
 220<newbranch>::
 221        The new name for an existing branch. The same restrictions as for
 222        <branchname> apply.
 223
 224
 225Examples
 226--------
 227
 228Start development from a known tag::
 229+
 230------------
 231$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
 232$ cd my2.6
 233$ git branch my2.6.14 v2.6.14   <1>
 234$ git checkout my2.6.14
 235------------
 236+
 237<1> This step and the next one could be combined into a single step with
 238"checkout -b my2.6.14 v2.6.14".
 239
 240Delete an unneeded branch::
 241+
 242------------
 243$ git clone git://git.kernel.org/.../git.git my.git
 244$ cd my.git
 245$ git branch -d -r origin/todo origin/html origin/man   <1>
 246$ git branch -D test                                    <2>
 247------------
 248+
 249<1> Delete the remote-tracking branches "todo", "html" and "man". The next
 250'fetch' or 'pull' will create them again unless you configure them not to.
 251See linkgit:git-fetch[1].
 252<2> Delete the "test" branch even if the "master" branch (or whichever branch
 253is currently checked out) does not have all commits from the test branch.
 254
 255
 256Notes
 257-----
 258
 259If you are creating a branch that you want to checkout immediately, it is
 260easier to use the git checkout command with its `-b` option to create
 261a branch and check it out with a single command.
 262
 263The options `--contains`, `--merged` and `--no-merged` serve three related
 264but different purposes:
 265
 266- `--contains <commit>` is used to find all branches which will need
 267  special attention if <commit> were to be rebased or amended, since those
 268  branches contain the specified <commit>.
 269
 270- `--merged` is used to find all branches which can be safely deleted,
 271  since those branches are fully contained by HEAD.
 272
 273- `--no-merged` is used to find branches which are candidates for merging
 274  into HEAD, since those branches are not fully contained by HEAD.
 275
 276SEE ALSO
 277--------
 278linkgit:git-check-ref-format[1],
 279linkgit:git-fetch[1],
 280linkgit:git-remote[1],
 281link:user-manual.html#what-is-a-branch[``Understanding history: What is
 282a branch?''] in the Git User's Manual.
 283
 284GIT
 285---
 286Part of the linkgit:git[1] suite