Documentation / git-branch.txton commit wrapper.c: add and use fopen_or_warn() (e9d983f)
   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] [--sort=<key>]
  14        [(--merged | --no-merged) [<commit>]]
  15        [--contains [<commit]] [--no-contains [<commit>]]
  16        [--points-at <object>] [--format=<format>] [<pattern>...]
  17'git branch' [--set-upstream | --track | --no-track] [-l] [-f] <branchname> [<start-point>]
  18'git branch' (--set-upstream-to=<upstream> | -u <upstream>) [<branchname>]
  19'git branch' --unset-upstream [<branchname>]
  20'git branch' (-m | -M) [<oldbranch>] <newbranch>
  21'git branch' (-d | -D) [-r] <branchname>...
  22'git branch' --edit-description [<branchname>]
  23
  24DESCRIPTION
  25-----------
  26
  27If `--list` is given, or if there are no non-option arguments, existing
  28branches are listed; the current branch will be highlighted with an
  29asterisk.  Option `-r` causes the remote-tracking branches to be listed,
  30and option `-a` shows both local and remote branches. If a `<pattern>`
  31is given, it is used as a shell wildcard to restrict the output to
  32matching branches. If multiple patterns are given, a branch is shown if
  33it matches any of the patterns.  Note that when providing a
  34`<pattern>`, you must use `--list`; otherwise the command is interpreted
  35as branch creation.
  36
  37With `--contains`, shows only the branches that contain the named commit
  38(in other words, the branches whose tip commits are descendants of the
  39named commit), `--no-contains` inverts it. With `--merged`, only branches
  40merged into the named commit (i.e. the branches whose tip commits are
  41reachable from the named commit) will be listed.  With `--no-merged` only
  42branches not merged into the named commit will be listed.  If the <commit>
  43argument is missing it defaults to `HEAD` (i.e. the tip of the current
  44branch).
  45
  46The command's second form creates a new branch head named <branchname>
  47which points to the current `HEAD`, or <start-point> if given.
  48
  49Note that this will create the new branch, but it will not switch the
  50working tree to it; use "git checkout <newbranch>" to switch to the
  51new branch.
  52
  53When a local branch is started off a remote-tracking branch, Git sets up the
  54branch (specifically the `branch.<name>.remote` and `branch.<name>.merge`
  55configuration entries) so that 'git pull' will appropriately merge from
  56the remote-tracking branch. This behavior may be changed via the global
  57`branch.autoSetupMerge` configuration flag. That setting can be
  58overridden by using the `--track` and `--no-track` options, and
  59changed later using `git branch --set-upstream-to`.
  60
  61With a `-m` or `-M` option, <oldbranch> will be renamed to <newbranch>.
  62If <oldbranch> had a corresponding reflog, it is renamed to match
  63<newbranch>, and a reflog entry is created to remember the branch
  64renaming. If <newbranch> exists, -M must be used to force the rename
  65to happen.
  66
  67With a `-d` or `-D` option, `<branchname>` will be deleted.  You may
  68specify more than one branch for deletion.  If the branch currently
  69has a reflog then the reflog will also be deleted.
  70
  71Use `-r` together with `-d` to delete remote-tracking branches. Note, that it
  72only makes sense to delete remote-tracking branches if they no longer exist
  73in the remote repository or if 'git fetch' was configured not to fetch
  74them again. See also the 'prune' subcommand of linkgit:git-remote[1] for a
  75way to clean up all obsolete remote-tracking branches.
  76
  77
  78OPTIONS
  79-------
  80-d::
  81--delete::
  82        Delete a branch. The branch must be fully merged in its
  83        upstream branch, or in `HEAD` if no upstream was set with
  84        `--track` or `--set-upstream`.
  85
  86-D::
  87        Shortcut for `--delete --force`.
  88
  89-l::
  90--create-reflog::
  91        Create the branch's reflog.  This activates recording of
  92        all changes made to the branch ref, enabling use of date
  93        based sha1 expressions such as "<branchname>@\{yesterday}".
  94        Note that in non-bare repositories, reflogs are usually
  95        enabled by default by the `core.logallrefupdates` config option.
  96        The negated form `--no-create-reflog` only overrides an earlier
  97        `--create-reflog`, but currently does not negate the setting of
  98        `core.logallrefupdates`.
  99
 100-f::
 101--force::
 102        Reset <branchname> to <startpoint> if <branchname> exists
 103        already. Without `-f` 'git branch' refuses to change an existing branch.
 104        In combination with `-d` (or `--delete`), allow deleting the
 105        branch irrespective of its merged status. In combination with
 106        `-m` (or `--move`), allow renaming the branch even if the new
 107        branch name already exists.
 108
 109-m::
 110--move::
 111        Move/rename a branch and the corresponding reflog.
 112
 113-M::
 114        Shortcut for `--move --force`.
 115
 116--color[=<when>]::
 117        Color branches to highlight current, local, and
 118        remote-tracking branches.
 119        The value must be always (the default), never, or auto.
 120
 121--no-color::
 122        Turn off branch colors, even when the configuration file gives the
 123        default to color output.
 124        Same as `--color=never`.
 125
 126-i::
 127--ignore-case::
 128        Sorting and filtering branches are case insensitive.
 129
 130--column[=<options>]::
 131--no-column::
 132        Display branch listing in columns. See configuration variable
 133        column.branch for option syntax.`--column` and `--no-column`
 134        without options are equivalent to 'always' and 'never' respectively.
 135+
 136This option is only applicable in non-verbose mode.
 137
 138-r::
 139--remotes::
 140        List or delete (if used with -d) the remote-tracking branches.
 141
 142-a::
 143--all::
 144        List both remote-tracking branches and local branches.
 145
 146--list::
 147        List branches.  With optional `<pattern>...`, e.g. `git
 148        branch --list 'maint-*'`, list only the branches that match
 149        the pattern(s).
 150+
 151This should not be confused with `git branch -l <branchname>`,
 152which creates a branch named `<branchname>` with a reflog.
 153See `--create-reflog` above for details.
 154
 155-v::
 156-vv::
 157--verbose::
 158        When in list mode,
 159        show sha1 and commit subject line for each head, along with
 160        relationship to upstream branch (if any). If given twice, print
 161        the name of the upstream branch, as well (see also `git remote
 162        show <remote>`).
 163
 164-q::
 165--quiet::
 166        Be more quiet when creating or deleting a branch, suppressing
 167        non-error messages.
 168
 169--abbrev=<length>::
 170        Alter the sha1's minimum display length in the output listing.
 171        The default value is 7 and can be overridden by the `core.abbrev`
 172        config option.
 173
 174--no-abbrev::
 175        Display the full sha1s in the output listing rather than abbreviating them.
 176
 177-t::
 178--track::
 179        When creating a new branch, set up `branch.<name>.remote` and
 180        `branch.<name>.merge` configuration entries to mark the
 181        start-point branch as "upstream" from the new branch. This
 182        configuration will tell git to show the relationship between the
 183        two branches in `git status` and `git branch -v`. Furthermore,
 184        it directs `git pull` without arguments to pull from the
 185        upstream when the new branch is checked out.
 186+
 187This behavior is the default when the start point is a remote-tracking branch.
 188Set the branch.autoSetupMerge configuration variable to `false` if you
 189want `git checkout` and `git branch` to always behave as if `--no-track`
 190were given. Set it to `always` if you want this behavior when the
 191start-point is either a local or remote-tracking branch.
 192
 193--no-track::
 194        Do not set up "upstream" configuration, even if the
 195        branch.autoSetupMerge configuration variable is true.
 196
 197--set-upstream::
 198        If specified branch does not exist yet or if `--force` has been
 199        given, acts exactly like `--track`. Otherwise sets up configuration
 200        like `--track` would when creating the branch, except that where
 201        branch points to is not changed.
 202
 203-u <upstream>::
 204--set-upstream-to=<upstream>::
 205        Set up <branchname>'s tracking information so <upstream> is
 206        considered <branchname>'s upstream branch. If no <branchname>
 207        is specified, then it defaults to the current branch.
 208
 209--unset-upstream::
 210        Remove the upstream information for <branchname>. If no branch
 211        is specified it defaults to the current branch.
 212
 213--edit-description::
 214        Open an editor and edit the text to explain what the branch is
 215        for, to be used by various other commands (e.g. `format-patch`,
 216        `request-pull`, and `merge` (if enabled)). Multi-line explanations
 217        may be used.
 218
 219--contains [<commit>]::
 220        Only list branches which contain the specified commit (HEAD
 221        if not specified). Implies `--list`.
 222
 223--no-contains [<commit>]::
 224        Only list branches which don't contain the specified commit
 225        (HEAD if not specified). Implies `--list`.
 226
 227--merged [<commit>]::
 228        Only list branches whose tips are reachable from the
 229        specified commit (HEAD if not specified). Implies `--list`,
 230        incompatible with `--no-merged`.
 231
 232--no-merged [<commit>]::
 233        Only list branches whose tips are not reachable from the
 234        specified commit (HEAD if not specified). Implies `--list`,
 235        incompatible with `--merged`.
 236
 237<branchname>::
 238        The name of the branch to create or delete.
 239        The new branch name must pass all checks defined by
 240        linkgit:git-check-ref-format[1].  Some of these checks
 241        may restrict the characters allowed in a branch name.
 242
 243<start-point>::
 244        The new branch head will point to this commit.  It may be
 245        given as a branch name, a commit-id, or a tag.  If this
 246        option is omitted, the current HEAD will be used instead.
 247
 248<oldbranch>::
 249        The name of an existing branch to rename.
 250
 251<newbranch>::
 252        The new name for an existing branch. The same restrictions as for
 253        <branchname> apply.
 254
 255--sort=<key>::
 256        Sort based on the key given. Prefix `-` to sort in descending
 257        order of the value. You may use the --sort=<key> option
 258        multiple times, in which case the last key becomes the primary
 259        key. The keys supported are the same as those in `git
 260        for-each-ref`. Sort order defaults to sorting based on the
 261        full refname (including `refs/...` prefix). This lists
 262        detached HEAD (if present) first, then local branches and
 263        finally remote-tracking branches.
 264
 265
 266--points-at <object>::
 267        Only list branches of the given object.
 268
 269--format <format>::
 270        A string that interpolates `%(fieldname)` from the object
 271        pointed at by a ref being shown.  The format is the same as
 272        that of linkgit:git-for-each-ref[1].
 273
 274Examples
 275--------
 276
 277Start development from a known tag::
 278+
 279------------
 280$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
 281$ cd my2.6
 282$ git branch my2.6.14 v2.6.14   <1>
 283$ git checkout my2.6.14
 284------------
 285+
 286<1> This step and the next one could be combined into a single step with
 287"checkout -b my2.6.14 v2.6.14".
 288
 289Delete an unneeded branch::
 290+
 291------------
 292$ git clone git://git.kernel.org/.../git.git my.git
 293$ cd my.git
 294$ git branch -d -r origin/todo origin/html origin/man   <1>
 295$ git branch -D test                                    <2>
 296------------
 297+
 298<1> Delete the remote-tracking branches "todo", "html" and "man". The next
 299'fetch' or 'pull' will create them again unless you configure them not to.
 300See linkgit:git-fetch[1].
 301<2> Delete the "test" branch even if the "master" branch (or whichever branch
 302is currently checked out) does not have all commits from the test branch.
 303
 304
 305Notes
 306-----
 307
 308If you are creating a branch that you want to checkout immediately, it is
 309easier to use the git checkout command with its `-b` option to create
 310a branch and check it out with a single command.
 311
 312The options `--contains`, `--no-contains`, `--merged` and `--no-merged`
 313serve four related but different purposes:
 314
 315- `--contains <commit>` is used to find all branches which will need
 316  special attention if <commit> were to be rebased or amended, since those
 317  branches contain the specified <commit>.
 318
 319- `--no-contains <commit>` is the inverse of that, i.e. branches that don't
 320  contain the specified <commit>.
 321
 322- `--merged` is used to find all branches which can be safely deleted,
 323  since those branches are fully contained by HEAD.
 324
 325- `--no-merged` is used to find branches which are candidates for merging
 326  into HEAD, since those branches are not fully contained by HEAD.
 327
 328SEE ALSO
 329--------
 330linkgit:git-check-ref-format[1],
 331linkgit:git-fetch[1],
 332linkgit:git-remote[1],
 333link:user-manual.html#what-is-a-branch[``Understanding history: What is
 334a branch?''] in the Git User's Manual.
 335
 336GIT
 337---
 338Part of the linkgit:git[1] suite