Documentation / git-branch.txton commit Merge branch 'rs/pp-user-info-without-extra-allocation' (d9291ec)
   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
  25If `--list` is given, or if there are no non-option arguments, existing
  26branches are listed; the current branch will be highlighted with an
  27asterisk.  Option `-r` causes the remote-tracking branches to be listed,
  28and option `-a` shows both local and remote branches. If a `<pattern>`
  29is given, it is used as a shell wildcard to restrict the output to
  30matching branches. If multiple patterns are given, a branch is shown if
  31it matches any of the patterns.  Note that when providing a
  32`<pattern>`, you must use `--list`; otherwise the command is interpreted
  33as branch creation.
  34
  35With `--contains`, shows only the branches that contain the named commit
  36(in other words, the branches whose tip commits are descendants of the
  37named commit).  With `--merged`, only branches merged into the named
  38commit (i.e. the branches whose tip commits are reachable from the named
  39commit) will be listed.  With `--no-merged` only branches not merged into
  40the named commit will be listed.  If the <commit> argument is missing it
  41defaults to 'HEAD' (i.e. the tip of the current branch).
  42
  43The command's second form creates a new branch head named <branchname>
  44which points to the current 'HEAD', or <start-point> if given.
  45
  46Note that this will create the new branch, but it will not switch the
  47working tree to it; use "git checkout <newbranch>" to switch to the
  48new branch.
  49
  50When a local branch is started off a remote-tracking branch, Git sets up the
  51branch so that 'git pull' will appropriately merge from
  52the remote-tracking branch. This behavior may be changed via the global
  53`branch.autosetupmerge` configuration flag. That setting can be
  54overridden by using the `--track` and `--no-track` options, and
  55changed later using `git branch --set-upstream-to`.
  56
  57With a `-m` or `-M` option, <oldbranch> will be renamed to <newbranch>.
  58If <oldbranch> had a corresponding reflog, it is renamed to match
  59<newbranch>, and a reflog entry is created to remember the branch
  60renaming. If <newbranch> exists, -M must be used to force the rename
  61to happen.
  62
  63With a `-d` or `-D` option, `<branchname>` will be deleted.  You may
  64specify more than one branch for deletion.  If the branch currently
  65has a reflog then the reflog will also be deleted.
  66
  67Use `-r` together with `-d` to delete remote-tracking branches. Note, that it
  68only makes sense to delete remote-tracking branches if they no longer exist
  69in the remote repository or if 'git fetch' was configured not to fetch
  70them again. See also the 'prune' subcommand of linkgit:git-remote[1] for a
  71way to clean up all obsolete remote-tracking branches.
  72
  73
  74OPTIONS
  75-------
  76-d::
  77--delete::
  78        Delete a branch. The branch must be fully merged in its
  79        upstream branch, or in `HEAD` if no upstream was set with
  80        `--track` or `--set-upstream`.
  81
  82-D::
  83        Delete a branch irrespective of its merged status.
  84
  85-l::
  86--create-reflog::
  87        Create the branch's reflog.  This activates recording of
  88        all changes made to the branch ref, enabling use of date
  89        based sha1 expressions such as "<branchname>@\{yesterday}".
  90        Note that in non-bare repositories, reflogs are usually
  91        enabled by default by the `core.logallrefupdates` config option.
  92
  93-f::
  94--force::
  95        Reset <branchname> to <startpoint> if <branchname> exists
  96        already. Without `-f` 'git branch' refuses to change an existing branch.
  97
  98-m::
  99--move::
 100        Move/rename a branch and the corresponding reflog.
 101
 102-M::
 103        Move/rename a branch even if the new branch name already exists.
 104
 105--color[=<when>]::
 106        Color branches to highlight current, local, and
 107        remote-tracking branches.
 108        The value must be always (the default), never, or auto.
 109
 110--no-color::
 111        Turn off branch colors, even when the configuration file gives the
 112        default to color output.
 113        Same as `--color=never`.
 114
 115--column[=<options>]::
 116--no-column::
 117        Display branch listing in columns. See configuration variable
 118        column.branch for option syntax.`--column` and `--no-column`
 119        without options are equivalent to 'always' and 'never' respectively.
 120+
 121This option is only applicable in non-verbose mode.
 122
 123-r::
 124--remotes::
 125        List or delete (if used with -d) the remote-tracking branches.
 126
 127-a::
 128--all::
 129        List both remote-tracking branches and local branches.
 130
 131--list::
 132        Activate the list mode. `git branch <pattern>` would try to create a branch,
 133        use `git branch --list <pattern>` to list matching branches.
 134
 135-v::
 136-vv::
 137--verbose::
 138        When in list mode,
 139        show sha1 and commit subject line for each head, along with
 140        relationship to upstream branch (if any). If given twice, print
 141        the name of the upstream branch, as well (see also `git remote
 142        show <remote>`).
 143
 144-q::
 145--quiet::
 146        Be more quiet when creating or deleting a branch, suppressing
 147        non-error messages.
 148
 149--abbrev=<length>::
 150        Alter the sha1's minimum display length in the output listing.
 151        The default value is 7 and can be overridden by the `core.abbrev`
 152        config option.
 153
 154--no-abbrev::
 155        Display the full sha1s in the output listing rather than abbreviating them.
 156
 157-t::
 158--track::
 159        When creating a new branch, set up configuration to mark the
 160        start-point branch as "upstream" from the new branch. This
 161        configuration will tell git to show the relationship between the
 162        two branches in `git status` and `git branch -v`. Furthermore,
 163        it directs `git pull` without arguments to pull from the
 164        upstream when the new branch is checked out.
 165+
 166This behavior is the default when the start point is a remote-tracking branch.
 167Set the branch.autosetupmerge configuration variable to `false` if you
 168want `git checkout` and `git branch` to always behave as if '--no-track'
 169were given. Set it to `always` if you want this behavior when the
 170start-point is either a local or remote-tracking branch.
 171
 172--no-track::
 173        Do not set up "upstream" configuration, even if the
 174        branch.autosetupmerge configuration variable is true.
 175
 176--set-upstream::
 177        If specified branch does not exist yet or if `--force` has been
 178        given, acts exactly like `--track`. Otherwise sets up configuration
 179        like `--track` would when creating the branch, except that where
 180        branch points to is not changed.
 181
 182-u <upstream>::
 183--set-upstream-to=<upstream>::
 184        Set up <branchname>'s tracking information so <upstream> is
 185        considered <branchname>'s upstream branch. If no <branchname>
 186        is specified, then it defaults to the current branch.
 187
 188--unset-upstream::
 189        Remove the upstream information for <branchname>. If no branch
 190        is specified it defaults to the current branch.
 191
 192--edit-description::
 193        Open an editor and edit the text to explain what the branch is
 194        for, to be used by various other commands (e.g. `request-pull`).
 195
 196--contains [<commit>]::
 197        Only list branches which contain the specified commit (HEAD
 198        if not specified). Implies `--list`.
 199
 200--merged [<commit>]::
 201        Only list branches whose tips are reachable from the
 202        specified commit (HEAD if not specified). Implies `--list`.
 203
 204--no-merged [<commit>]::
 205        Only list branches whose tips are not reachable from the
 206        specified commit (HEAD if not specified). Implies `--list`.
 207
 208<branchname>::
 209        The name of the branch to create or delete.
 210        The new branch name must pass all checks defined by
 211        linkgit:git-check-ref-format[1].  Some of these checks
 212        may restrict the characters allowed in a branch name.
 213
 214<start-point>::
 215        The new branch head will point to this commit.  It may be
 216        given as a branch name, a commit-id, or a tag.  If this
 217        option is omitted, the current HEAD will be used instead.
 218
 219<oldbranch>::
 220        The name of an existing branch to rename.
 221
 222<newbranch>::
 223        The new name for an existing branch. The same restrictions as for
 224        <branchname> apply.
 225
 226
 227Examples
 228--------
 229
 230Start development from a known tag::
 231+
 232------------
 233$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
 234$ cd my2.6
 235$ git branch my2.6.14 v2.6.14   <1>
 236$ git checkout my2.6.14
 237------------
 238+
 239<1> This step and the next one could be combined into a single step with
 240"checkout -b my2.6.14 v2.6.14".
 241
 242Delete an unneeded branch::
 243+
 244------------
 245$ git clone git://git.kernel.org/.../git.git my.git
 246$ cd my.git
 247$ git branch -d -r origin/todo origin/html origin/man   <1>
 248$ git branch -D test                                    <2>
 249------------
 250+
 251<1> Delete the remote-tracking branches "todo", "html" and "man". The next
 252'fetch' or 'pull' will create them again unless you configure them not to.
 253See linkgit:git-fetch[1].
 254<2> Delete the "test" branch even if the "master" branch (or whichever branch
 255is currently checked out) does not have all commits from the test branch.
 256
 257
 258Notes
 259-----
 260
 261If you are creating a branch that you want to checkout immediately, it is
 262easier to use the git checkout command with its `-b` option to create
 263a branch and check it out with a single command.
 264
 265The options `--contains`, `--merged` and `--no-merged` serve three related
 266but different purposes:
 267
 268- `--contains <commit>` is used to find all branches which will need
 269  special attention if <commit> were to be rebased or amended, since those
 270  branches contain the specified <commit>.
 271
 272- `--merged` is used to find all branches which can be safely deleted,
 273  since those branches are fully contained by HEAD.
 274
 275- `--no-merged` is used to find branches which are candidates for merging
 276  into HEAD, since those branches are not fully contained by HEAD.
 277
 278SEE ALSO
 279--------
 280linkgit:git-check-ref-format[1],
 281linkgit:git-fetch[1],
 282linkgit:git-remote[1],
 283link:user-manual.html#what-is-a-branch[``Understanding history: What is
 284a branch?''] in the Git User's Manual.
 285
 286GIT
 287---
 288Part of the linkgit:git[1] suite