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Diffstat (limited to 'Documentation/git-branch.txt')
| -rw-r--r-- | Documentation/git-branch.txt | 221 |
1 files changed, 192 insertions, 29 deletions
diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt index 4cd0cb90ad..507b8d0ab2 100644 --- a/Documentation/git-branch.txt +++ b/Documentation/git-branch.txt @@ -3,73 +3,236 @@ git-branch(1) NAME ---- -git-branch - Create a new branch, or remove an old one +git-branch - List, create, or delete branches SYNOPSIS -------- -'git-branch' [(-d | -D) <branchname>] | [[-f] <branchname> [<start-point>]] +[verse] +'git branch' [--color[=<when>] | --no-color] [-r | -a] + [-v [--abbrev=<length> | --no-abbrev]] + [(--merged | --no-merged | --contains) [<commit>]] +'git branch' [--set-upstream | --track | --no-track] [-l] [-f] <branchname> [<start-point>] +'git branch' (-m | -M) [<oldbranch>] <newbranch> +'git branch' (-d | -D) [-r] <branchname>... DESCRIPTION ----------- -If no argument is provided, show available branches and mark current -branch with star. Otherwise, create a new branch of name <branchname>. -If a starting point is also specified, that will be where the branch is -created, otherwise it will be created at the current HEAD. +With no arguments, existing branches are listed and the current branch will +be highlighted with an asterisk. Option `-r` causes the remote-tracking +branches to be listed, and option `-a` shows both. + +With `--contains`, shows only the branches that contain the named commit +(in other words, the branches whose tip commits are descendants of the +named commit). With `--merged`, only branches merged into the named +commit (i.e. the branches whose tip commits are reachable from the named +commit) will be listed. With `--no-merged` only branches not merged into +the named commit will be listed. If the <commit> argument is missing it +defaults to 'HEAD' (i.e. the tip of the current branch). + +The command's second form creates a new branch head named <branchname> +which points to the current 'HEAD', or <start-point> if given. + +Note that this will create the new branch, but it will not switch the +working tree to it; use "git checkout <newbranch>" to switch to the +new branch. + +When a local branch is started off a remote-tracking branch, git sets up the +branch so that 'git pull' will appropriately merge from +the remote-tracking branch. This behavior may be changed via the global +`branch.autosetupmerge` configuration flag. That setting can be +overridden by using the `--track` and `--no-track` options, and +changed later using `git branch --set-upstream`. + +With a '-m' or '-M' option, <oldbranch> will be renamed to <newbranch>. +If <oldbranch> had a corresponding reflog, it is renamed to match +<newbranch>, and a reflog entry is created to remember the branch +renaming. If <newbranch> exists, -M must be used to force the rename +to happen. + +With a `-d` or `-D` option, `<branchname>` will be deleted. You may +specify more than one branch for deletion. If the branch currently +has a reflog then the reflog will also be deleted. + +Use -r together with -d to delete remote-tracking branches. Note, that it +only makes sense to delete remote-tracking branches if they no longer exist +in the remote repository or if 'git fetch' was configured not to fetch +them again. See also the 'prune' subcommand of linkgit:git-remote[1] for a +way to clean up all obsolete remote-tracking branches. + OPTIONS ------- -d:: - Delete a branch. The branch must be fully merged. + Delete a branch. The branch must be fully merged in its + upstream branch, or in `HEAD` if no upstream was set with + `--track` or `--set-upstream`. -D:: - Delete a branch irrespective of its index status. + Delete a branch irrespective of its merged status. + +-l:: + Create the branch's reflog. This activates recording of + all changes made to the branch ref, enabling use of date + based sha1 expressions such as "<branchname>@\{yesterday}". + Note that in non-bare repositories, reflogs are usually + enabled by default by the `core.logallrefupdates` config option. -f:: - Force a reset of <branchname> to <start-point> (or current head). +--force:: + Reset <branchname> to <startpoint> if <branchname> exists + already. Without `-f` 'git branch' refuses to change an existing branch. + +-m:: + Move/rename a branch and the corresponding reflog. + +-M:: + Move/rename a branch even if the new branch name already exists. + +--color[=<when>]:: + Color branches to highlight current, local, and + remote-tracking branches. + The value must be always (the default), never, or auto. + +--no-color:: + Turn off branch colors, even when the configuration file gives the + default to color output. + Same as `--color=never`. + +-r:: + List or delete (if used with -d) the remote-tracking branches. + +-a:: + List both remote-tracking branches and local branches. + +-v:: +--verbose:: + Show sha1 and commit subject line for each head, along with + relationship to upstream branch (if any). If given twice, print + the name of the upstream branch, as well. + +--abbrev=<length>:: + Alter the sha1's minimum display length in the output listing. + The default value is 7 and can be overridden by the `core.abbrev` + config option. + +--no-abbrev:: + Display the full sha1s in the output listing rather than abbreviating them. + +-t:: +--track:: + When creating a new branch, set up configuration to mark the + start-point branch as "upstream" from the new branch. This + configuration will tell git to show the relationship between the + two branches in `git status` and `git branch -v`. Furthermore, + it directs `git pull` without arguments to pull from the + upstream when the new branch is checked out. ++ +This behavior is the default when the start point is a remote-tracking branch. +Set the branch.autosetupmerge configuration variable to `false` if you +want `git checkout` and `git branch` to always behave as if '--no-track' +were given. Set it to `always` if you want this behavior when the +start-point is either a local or remote-tracking branch. + +--no-track:: + Do not set up "upstream" configuration, even if the + branch.autosetupmerge configuration variable is true. + +--set-upstream:: + If specified branch does not exist yet or if '--force' has been + given, acts exactly like '--track'. Otherwise sets up configuration + like '--track' would when creating the branch, except that where + branch points to is not changed. + +--contains <commit>:: + Only list branches which contain the specified commit. + +--merged [<commit>]:: + Only list branches whose tips are reachable from the + specified commit (HEAD if not specified). + +--no-merged [<commit>]:: + Only list branches whose tips are not reachable from the + specified commit (HEAD if not specified). <branchname>:: The name of the branch to create or delete. + The new branch name must pass all checks defined by + linkgit:git-check-ref-format[1]. Some of these checks + may restrict the characters allowed in a branch name. <start-point>:: - Where to create the branch; defaults to HEAD. This - option has no meaning with -d and -D. + The new branch head will point to this commit. It may be + given as a branch name, a commit-id, or a tag. If this + option is omitted, the current HEAD will be used instead. + +<oldbranch>:: + The name of an existing branch to rename. + +<newbranch>:: + The new name for an existing branch. The same restrictions as for + <branchname> apply. Examples -~~~~~~~~ +-------- -Start development off of a know tag:: +Start development from a known tag:: + ------------ $ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6 $ cd my2.6 -$ git branch my2.6.14 v2.6.14 <1> +$ git branch my2.6.14 v2.6.14 <1> $ git checkout my2.6.14 - -<1> These two steps are the same as "checkout -b my2.6.14 v2.6.14". ------------ ++ +<1> This step and the next one could be combined into a single step with +"checkout -b my2.6.14 v2.6.14". -Delete unneeded branch:: +Delete an unneeded branch:: + ------------ $ git clone git://git.kernel.org/.../git.git my.git $ cd my.git -$ git branch -D todo <1> - -<1> delete todo branch even if the "master" branch does not have all -commits from todo branch. +$ git branch -d -r origin/todo origin/html origin/man <1> +$ git branch -D test <2> ------------ ++ +<1> Delete the remote-tracking branches "todo", "html" and "man". The next +'fetch' or 'pull' will create them again unless you configure them not to. +See linkgit:git-fetch[1]. +<2> Delete the "test" branch even if the "master" branch (or whichever branch +is currently checked out) does not have all commits from the test branch. + + +Notes +----- + +If you are creating a branch that you want to checkout immediately, it is +easier to use the git checkout command with its `-b` option to create +a branch and check it out with a single command. -Author ------- -Written by Linus Torvalds <torvalds@osdl.org> and Junio C Hamano <junkio@cox.net> +The options `--contains`, `--merged` and `--no-merged` serve three related +but different purposes: -Documentation --------------- -Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. +- `--contains <commit>` is used to find all branches which will need + special attention if <commit> were to be rebased or amended, since those + branches contain the specified <commit>. + +- `--merged` is used to find all branches which can be safely deleted, + since those branches are fully contained by HEAD. + +- `--no-merged` is used to find branches which are candidates for merging + into HEAD, since those branches are not fully contained by HEAD. + +SEE ALSO +-------- +linkgit:git-check-ref-format[1], +linkgit:git-fetch[1], +linkgit:git-remote[1], +link:user-manual.html#what-is-a-branch[``Understanding history: What is +a branch?''] in the Git User's Manual. GIT --- -Part of the gitlink:git[7] suite - +Part of the linkgit:git[1] suite |