Documentation / git-branch.txton commit struct ref_update: move "have_old" into "flags" (8df4e51)
   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 (specifically the `branch.<name>.remote` and `branch.<name>.merge`
  52configuration entries) so that 'git pull' will appropriately merge from
  53the remote-tracking branch. This behavior may be changed via the global
  54`branch.autosetupmerge` configuration flag. That setting can be
  55overridden by using the `--track` and `--no-track` options, and
  56changed later using `git branch --set-upstream-to`.
  57
  58With a `-m` or `-M` option, <oldbranch> will be renamed to <newbranch>.
  59If <oldbranch> had a corresponding reflog, it is renamed to match
  60<newbranch>, and a reflog entry is created to remember the branch
  61renaming. If <newbranch> exists, -M must be used to force the rename
  62to happen.
  63
  64With a `-d` or `-D` option, `<branchname>` will be deleted.  You may
  65specify more than one branch for deletion.  If the branch currently
  66has a reflog then the reflog will also be deleted.
  67
  68Use `-r` together with `-d` to delete remote-tracking branches. Note, that it
  69only makes sense to delete remote-tracking branches if they no longer exist
  70in the remote repository or if 'git fetch' was configured not to fetch
  71them again. See also the 'prune' subcommand of linkgit:git-remote[1] for a
  72way to clean up all obsolete remote-tracking branches.
  73
  74
  75OPTIONS
  76-------
  77-d::
  78--delete::
  79        Delete a branch. The branch must be fully merged in its
  80        upstream branch, or in `HEAD` if no upstream was set with
  81        `--track` or `--set-upstream`.
  82
  83-D::
  84        Delete a branch irrespective of its merged status.
  85
  86-l::
  87--create-reflog::
  88        Create the branch's reflog.  This activates recording of
  89        all changes made to the branch ref, enabling use of date
  90        based sha1 expressions such as "<branchname>@\{yesterday}".
  91        Note that in non-bare repositories, reflogs are usually
  92        enabled by default by the `core.logallrefupdates` config option.
  93
  94-f::
  95--force::
  96        Reset <branchname> to <startpoint> if <branchname> exists
  97        already. Without `-f` 'git branch' refuses to change an existing branch.
  98
  99-m::
 100--move::
 101        Move/rename a branch and the corresponding reflog.
 102
 103-M::
 104        Move/rename a branch even if the new branch name already exists.
 105
 106--color[=<when>]::
 107        Color branches to highlight current, local, and
 108        remote-tracking branches.
 109        The value must be always (the default), never, or auto.
 110
 111--no-color::
 112        Turn off branch colors, even when the configuration file gives the
 113        default to color output.
 114        Same as `--color=never`.
 115
 116--column[=<options>]::
 117--no-column::
 118        Display branch listing in columns. See configuration variable
 119        column.branch for option syntax.`--column` and `--no-column`
 120        without options are equivalent to 'always' and 'never' respectively.
 121+
 122This option is only applicable in non-verbose mode.
 123
 124-r::
 125--remotes::
 126        List or delete (if used with -d) the remote-tracking branches.
 127
 128-a::
 129--all::
 130        List both remote-tracking branches and local branches.
 131
 132--list::
 133        Activate the list mode. `git branch <pattern>` would try to create a branch,
 134        use `git branch --list <pattern>` to list matching branches.
 135
 136-v::
 137-vv::
 138--verbose::
 139        When in list mode,
 140        show sha1 and commit subject line for each head, along with
 141        relationship to upstream branch (if any). If given twice, print
 142        the name of the upstream branch, as well (see also `git remote
 143        show <remote>`).
 144
 145-q::
 146--quiet::
 147        Be more quiet when creating or deleting a branch, suppressing
 148        non-error messages.
 149
 150--abbrev=<length>::
 151        Alter the sha1's minimum display length in the output listing.
 152        The default value is 7 and can be overridden by the `core.abbrev`
 153        config option.
 154
 155--no-abbrev::
 156        Display the full sha1s in the output listing rather than abbreviating them.
 157
 158-t::
 159--track::
 160        When creating a new branch, set up `branch.<name>.remote` and
 161        `branch.<name>.merge` configuration entries to mark the
 162        start-point branch as "upstream" from the new branch. This
 163        configuration will tell git to show the relationship between the
 164        two branches in `git status` and `git branch -v`. Furthermore,
 165        it directs `git pull` without arguments to pull from the
 166        upstream when the new branch is checked out.
 167+
 168This behavior is the default when the start point is a remote-tracking branch.
 169Set the branch.autosetupmerge configuration variable to `false` if you
 170want `git checkout` and `git branch` to always behave as if '--no-track'
 171were given. Set it to `always` if you want this behavior when the
 172start-point is either a local or remote-tracking branch.
 173
 174--no-track::
 175        Do not set up "upstream" configuration, even if the
 176        branch.autosetupmerge configuration variable is true.
 177
 178--set-upstream::
 179        If specified branch does not exist yet or if `--force` has been
 180        given, acts exactly like `--track`. Otherwise sets up configuration
 181        like `--track` would when creating the branch, except that where
 182        branch points to is not changed.
 183
 184-u <upstream>::
 185--set-upstream-to=<upstream>::
 186        Set up <branchname>'s tracking information so <upstream> is
 187        considered <branchname>'s upstream branch. If no <branchname>
 188        is specified, then it defaults to the current branch.
 189
 190--unset-upstream::
 191        Remove the upstream information for <branchname>. If no branch
 192        is specified it defaults to the current branch.
 193
 194--edit-description::
 195        Open an editor and edit the text to explain what the branch is
 196        for, to be used by various other commands (e.g. `request-pull`).
 197
 198--contains [<commit>]::
 199        Only list branches which contain the specified commit (HEAD
 200        if not specified). Implies `--list`.
 201
 202--merged [<commit>]::
 203        Only list branches whose tips are reachable from the
 204        specified commit (HEAD if not specified). Implies `--list`.
 205
 206--no-merged [<commit>]::
 207        Only list branches whose tips are not reachable from the
 208        specified commit (HEAD if not specified). Implies `--list`.
 209
 210<branchname>::
 211        The name of the branch to create or delete.
 212        The new branch name must pass all checks defined by
 213        linkgit:git-check-ref-format[1].  Some of these checks
 214        may restrict the characters allowed in a branch name.
 215
 216<start-point>::
 217        The new branch head will point to this commit.  It may be
 218        given as a branch name, a commit-id, or a tag.  If this
 219        option is omitted, the current HEAD will be used instead.
 220
 221<oldbranch>::
 222        The name of an existing branch to rename.
 223
 224<newbranch>::
 225        The new name for an existing branch. The same restrictions as for
 226        <branchname> apply.
 227
 228
 229Examples
 230--------
 231
 232Start development from a known tag::
 233+
 234------------
 235$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
 236$ cd my2.6
 237$ git branch my2.6.14 v2.6.14   <1>
 238$ git checkout my2.6.14
 239------------
 240+
 241<1> This step and the next one could be combined into a single step with
 242"checkout -b my2.6.14 v2.6.14".
 243
 244Delete an unneeded branch::
 245+
 246------------
 247$ git clone git://git.kernel.org/.../git.git my.git
 248$ cd my.git
 249$ git branch -d -r origin/todo origin/html origin/man   <1>
 250$ git branch -D test                                    <2>
 251------------
 252+
 253<1> Delete the remote-tracking branches "todo", "html" and "man". The next
 254'fetch' or 'pull' will create them again unless you configure them not to.
 255See linkgit:git-fetch[1].
 256<2> Delete the "test" branch even if the "master" branch (or whichever branch
 257is currently checked out) does not have all commits from the test branch.
 258
 259
 260Notes
 261-----
 262
 263If you are creating a branch that you want to checkout immediately, it is
 264easier to use the git checkout command with its `-b` option to create
 265a branch and check it out with a single command.
 266
 267The options `--contains`, `--merged` and `--no-merged` serve three related
 268but different purposes:
 269
 270- `--contains <commit>` is used to find all branches which will need
 271  special attention if <commit> were to be rebased or amended, since those
 272  branches contain the specified <commit>.
 273
 274- `--merged` is used to find all branches which can be safely deleted,
 275  since those branches are fully contained by HEAD.
 276
 277- `--no-merged` is used to find branches which are candidates for merging
 278  into HEAD, since those branches are not fully contained by HEAD.
 279
 280SEE ALSO
 281--------
 282linkgit:git-check-ref-format[1],
 283linkgit:git-fetch[1],
 284linkgit:git-remote[1],
 285link:user-manual.html#what-is-a-branch[``Understanding history: What is
 286a branch?''] in the Git User's Manual.
 287
 288GIT
 289---
 290Part of the linkgit:git[1] suite