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t4034: abstract away SHA-1-specific constants
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1 git-branch(1)
2 =============
3
4 NAME
5 ----
6 git-branch - List, create, or delete branches
7
8 SYNOPSIS
9 --------
10 [verse]
11 'git branch' [--color[=<when>] | --no-color] [--show-current]
12 [-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>]
17 [(-r | --remotes) | (-a | --all)]
18 [--list] [<pattern>...]
19 'git branch' [--track | --no-track] [-f] <branchname> [<start-point>]
20 'git branch' (--set-upstream-to=<upstream> | -u <upstream>) [<branchname>]
21 'git branch' --unset-upstream [<branchname>]
22 'git branch' (-m | -M) [<oldbranch>] <newbranch>
23 'git branch' (-c | -C) [<oldbranch>] <newbranch>
24 'git branch' (-d | -D) [-r] <branchname>...
25 'git branch' --edit-description [<branchname>]
26
27 DESCRIPTION
28 -----------
29
30 If `--list` is given, or if there are no non-option arguments, existing
31 branches are listed; the current branch will be highlighted in green and
32 marked with an asterisk. Any branches checked out in linked worktrees will
33 be highlighted in cyan and marked with a plus sign. Option `-r` causes the
34 remote-tracking branches to be listed,
35 and option `-a` shows both local and remote branches.
36
37 If a `<pattern>`
38 is given, it is used as a shell wildcard to restrict the output to
39 matching branches. If multiple patterns are given, a branch is shown if
40 it matches any of the patterns.
41
42 Note that when providing a
43 `<pattern>`, you must use `--list`; otherwise the command may be interpreted
44 as branch creation.
45
46 With `--contains`, shows only the branches that contain the named commit
47 (in other words, the branches whose tip commits are descendants of the
48 named commit), `--no-contains` inverts it. With `--merged`, only branches
49 merged into the named commit (i.e. the branches whose tip commits are
50 reachable from the named commit) will be listed. With `--no-merged` only
51 branches not merged into the named commit will be listed. If the <commit>
52 argument is missing it defaults to `HEAD` (i.e. the tip of the current
53 branch).
54
55 The command's second form creates a new branch head named <branchname>
56 which points to the current `HEAD`, or <start-point> if given. As a
57 special case, for <start-point>, you may use `"A...B"` as a shortcut for
58 the merge base of `A` and `B` if there is exactly one merge base. You
59 can leave out at most one of `A` and `B`, in which case it defaults to
60 `HEAD`.
61
62 Note that this will create the new branch, but it will not switch the
63 working tree to it; use "git switch <newbranch>" to switch to the
64 new branch.
65
66 When a local branch is started off a remote-tracking branch, Git sets up the
67 branch (specifically the `branch.<name>.remote` and `branch.<name>.merge`
68 configuration entries) so that 'git pull' will appropriately merge from
69 the remote-tracking branch. This behavior may be changed via the global
70 `branch.autoSetupMerge` configuration flag. That setting can be
71 overridden by using the `--track` and `--no-track` options, and
72 changed later using `git branch --set-upstream-to`.
73
74 With a `-m` or `-M` option, <oldbranch> will be renamed to <newbranch>.
75 If <oldbranch> had a corresponding reflog, it is renamed to match
76 <newbranch>, and a reflog entry is created to remember the branch
77 renaming. If <newbranch> exists, -M must be used to force the rename
78 to happen.
79
80 The `-c` and `-C` options have the exact same semantics as `-m` and
81 `-M`, except instead of the branch being renamed it along with its
82 config and reflog will be copied to a new name.
83
84 With a `-d` or `-D` option, `<branchname>` will be deleted. You may
85 specify more than one branch for deletion. If the branch currently
86 has a reflog then the reflog will also be deleted.
87
88 Use `-r` together with `-d` to delete remote-tracking branches. Note, that it
89 only makes sense to delete remote-tracking branches if they no longer exist
90 in the remote repository or if 'git fetch' was configured not to fetch
91 them again. See also the 'prune' subcommand of linkgit:git-remote[1] for a
92 way to clean up all obsolete remote-tracking branches.
93
94
95 OPTIONS
96 -------
97 -d::
98 --delete::
99 Delete a branch. The branch must be fully merged in its
100 upstream branch, or in `HEAD` if no upstream was set with
101 `--track` or `--set-upstream-to`.
102
103 -D::
104 Shortcut for `--delete --force`.
105
106 --create-reflog::
107 Create the branch's reflog. This activates recording of
108 all changes made to the branch ref, enabling use of date
109 based sha1 expressions such as "<branchname>@\{yesterday}".
110 Note that in non-bare repositories, reflogs are usually
111 enabled by default by the `core.logAllRefUpdates` config option.
112 The negated form `--no-create-reflog` only overrides an earlier
113 `--create-reflog`, but currently does not negate the setting of
114 `core.logAllRefUpdates`.
115
116 -f::
117 --force::
118 Reset <branchname> to <startpoint>, even if <branchname> exists
119 already. Without `-f`, 'git branch' refuses to change an existing branch.
120 In combination with `-d` (or `--delete`), allow deleting the
121 branch irrespective of its merged status. In combination with
122 `-m` (or `--move`), allow renaming the branch even if the new
123 branch name already exists, the same applies for `-c` (or `--copy`).
124
125 -m::
126 --move::
127 Move/rename a branch and the corresponding reflog.
128
129 -M::
130 Shortcut for `--move --force`.
131
132 -c::
133 --copy::
134 Copy a branch and the corresponding reflog.
135
136 -C::
137 Shortcut for `--copy --force`.
138
139 --color[=<when>]::
140 Color branches to highlight current, local, and
141 remote-tracking branches.
142 The value must be always (the default), never, or auto.
143
144 --no-color::
145 Turn off branch colors, even when the configuration file gives the
146 default to color output.
147 Same as `--color=never`.
148
149 -i::
150 --ignore-case::
151 Sorting and filtering branches are case insensitive.
152
153 --column[=<options>]::
154 --no-column::
155 Display branch listing in columns. See configuration variable
156 column.branch for option syntax.`--column` and `--no-column`
157 without options are equivalent to 'always' and 'never' respectively.
158 +
159 This option is only applicable in non-verbose mode.
160
161 -r::
162 --remotes::
163 List or delete (if used with -d) the remote-tracking branches.
164 Combine with `--list` to match the optional pattern(s).
165
166 -a::
167 --all::
168 List both remote-tracking branches and local branches.
169 Combine with `--list` to match optional pattern(s).
170
171 -l::
172 --list::
173 List branches. With optional `<pattern>...`, e.g. `git
174 branch --list 'maint-*'`, list only the branches that match
175 the pattern(s).
176
177 --show-current::
178 Print the name of the current branch. In detached HEAD state,
179 nothing is printed.
180
181 -v::
182 -vv::
183 --verbose::
184 When in list mode,
185 show sha1 and commit subject line for each head, along with
186 relationship to upstream branch (if any). If given twice, print
187 the path of the linked worktree (if any) and the name of the upstream
188 branch, as well (see also `git remote show <remote>`). Note that the
189 current worktree's HEAD will not have its path printed (it will always
190 be your current directory).
191
192 -q::
193 --quiet::
194 Be more quiet when creating or deleting a branch, suppressing
195 non-error messages.
196
197 --abbrev=<length>::
198 Alter the sha1's minimum display length in the output listing.
199 The default value is 7 and can be overridden by the `core.abbrev`
200 config option.
201
202 --no-abbrev::
203 Display the full sha1s in the output listing rather than abbreviating them.
204
205 -t::
206 --track::
207 When creating a new branch, set up `branch.<name>.remote` and
208 `branch.<name>.merge` configuration entries to mark the
209 start-point branch as "upstream" from the new branch. This
210 configuration will tell git to show the relationship between the
211 two branches in `git status` and `git branch -v`. Furthermore,
212 it directs `git pull` without arguments to pull from the
213 upstream when the new branch is checked out.
214 +
215 This behavior is the default when the start point is a remote-tracking branch.
216 Set the branch.autoSetupMerge configuration variable to `false` if you
217 want `git switch`, `git checkout` and `git branch` to always behave as if `--no-track`
218 were given. Set it to `always` if you want this behavior when the
219 start-point is either a local or remote-tracking branch.
220
221 --no-track::
222 Do not set up "upstream" configuration, even if the
223 branch.autoSetupMerge configuration variable is true.
224
225 --set-upstream::
226 As this option had confusing syntax, it is no longer supported.
227 Please use `--track` or `--set-upstream-to` instead.
228
229 -u <upstream>::
230 --set-upstream-to=<upstream>::
231 Set up <branchname>'s tracking information so <upstream> is
232 considered <branchname>'s upstream branch. If no <branchname>
233 is specified, then it defaults to the current branch.
234
235 --unset-upstream::
236 Remove the upstream information for <branchname>. If no branch
237 is specified it defaults to the current branch.
238
239 --edit-description::
240 Open an editor and edit the text to explain what the branch is
241 for, to be used by various other commands (e.g. `format-patch`,
242 `request-pull`, and `merge` (if enabled)). Multi-line explanations
243 may be used.
244
245 --contains [<commit>]::
246 Only list branches which contain the specified commit (HEAD
247 if not specified). Implies `--list`.
248
249 --no-contains [<commit>]::
250 Only list branches which don't contain the specified commit
251 (HEAD if not specified). Implies `--list`.
252
253 --merged [<commit>]::
254 Only list branches whose tips are reachable from the
255 specified commit (HEAD if not specified). Implies `--list`,
256 incompatible with `--no-merged`.
257
258 --no-merged [<commit>]::
259 Only list branches whose tips are not reachable from the
260 specified commit (HEAD if not specified). Implies `--list`,
261 incompatible with `--merged`.
262
263 <branchname>::
264 The name of the branch to create or delete.
265 The new branch name must pass all checks defined by
266 linkgit:git-check-ref-format[1]. Some of these checks
267 may restrict the characters allowed in a branch name.
268
269 <start-point>::
270 The new branch head will point to this commit. It may be
271 given as a branch name, a commit-id, or a tag. If this
272 option is omitted, the current HEAD will be used instead.
273
274 <oldbranch>::
275 The name of an existing branch to rename.
276
277 <newbranch>::
278 The new name for an existing branch. The same restrictions as for
279 <branchname> apply.
280
281 --sort=<key>::
282 Sort based on the key given. Prefix `-` to sort in descending
283 order of the value. You may use the --sort=<key> option
284 multiple times, in which case the last key becomes the primary
285 key. The keys supported are the same as those in `git
286 for-each-ref`. Sort order defaults to the value configured for the
287 `branch.sort` variable if exists, or to sorting based on the
288 full refname (including `refs/...` prefix). This lists
289 detached HEAD (if present) first, then local branches and
290 finally remote-tracking branches. See linkgit:git-config[1].
291
292
293 --points-at <object>::
294 Only list branches of the given object.
295
296 --format <format>::
297 A string that interpolates `%(fieldname)` from a branch ref being shown
298 and the object it points at. The format is the same as
299 that of linkgit:git-for-each-ref[1].
300
301 CONFIGURATION
302 -------------
303 `pager.branch` is only respected when listing branches, i.e., when
304 `--list` is used or implied. The default is to use a pager.
305 See linkgit:git-config[1].
306
307 EXAMPLES
308 --------
309
310 Start development from a known tag::
311 +
312 ------------
313 $ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
314 $ cd my2.6
315 $ git branch my2.6.14 v2.6.14 <1>
316 $ git switch my2.6.14
317 ------------
318 +
319 <1> This step and the next one could be combined into a single step with
320 "checkout -b my2.6.14 v2.6.14".
321
322 Delete an unneeded branch::
323 +
324 ------------
325 $ git clone git://git.kernel.org/.../git.git my.git
326 $ cd my.git
327 $ git branch -d -r origin/todo origin/html origin/man <1>
328 $ git branch -D test <2>
329 ------------
330 +
331 <1> Delete the remote-tracking branches "todo", "html" and "man". The next
332 'fetch' or 'pull' will create them again unless you configure them not to.
333 See linkgit:git-fetch[1].
334 <2> Delete the "test" branch even if the "master" branch (or whichever branch
335 is currently checked out) does not have all commits from the test branch.
336
337 Listing branches from a specific remote::
338 +
339 ------------
340 $ git branch -r -l '<remote>/<pattern>' <1>
341 $ git for-each-ref 'refs/remotes/<remote>/<pattern>' <2>
342 ------------
343 +
344 <1> Using `-a` would conflate <remote> with any local branches you happen to
345 have been prefixed with the same <remote> pattern.
346 <2> `for-each-ref` can take a wide range of options. See linkgit:git-for-each-ref[1]
347
348 Patterns will normally need quoting.
349
350 NOTES
351 -----
352
353 If you are creating a branch that you want to switch to immediately,
354 it is easier to use the "git switch" command with its `-c` option to
355 do the same thing with a single command.
356
357 The options `--contains`, `--no-contains`, `--merged` and `--no-merged`
358 serve four related but different purposes:
359
360 - `--contains <commit>` is used to find all branches which will need
361 special attention if <commit> were to be rebased or amended, since those
362 branches contain the specified <commit>.
363
364 - `--no-contains <commit>` is the inverse of that, i.e. branches that don't
365 contain the specified <commit>.
366
367 - `--merged` is used to find all branches which can be safely deleted,
368 since those branches are fully contained by HEAD.
369
370 - `--no-merged` is used to find branches which are candidates for merging
371 into HEAD, since those branches are not fully contained by HEAD.
372
373 SEE ALSO
374 --------
375 linkgit:git-check-ref-format[1],
376 linkgit:git-fetch[1],
377 linkgit:git-remote[1],
378 link:user-manual.html#what-is-a-branch[``Understanding history: What is
379 a branch?''] in the Git User's Manual.
380
381 GIT
382 ---
383 Part of the linkgit:git[1] suite