6 git-tag - Create, list, delete or verify a tag object signed with GPG
12 'git tag' [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>]
13 <tagname> [<commit> | <object>]
14 'git tag' -d <tagname>...
15 'git tag' [-n[<num>]] -l [--contains <commit>] [--points-at <object>]
16 [--column[=<options>] | --no-column] [<pattern>...]
18 'git tag' -v <tagname>...
23 Add a tag reference in `refs/tags/`, unless `-d/-l/-v` is given
24 to delete, list or verify tags.
26 Unless `-f` is given, the named tag must not yet exist.
28 If one of `-a`, `-s`, or `-u <key-id>` is passed, the command
29 creates a 'tag' object, and requires a tag message. Unless
30 `-m <msg>` or `-F <file>` is given, an editor is started for the user to type
33 If `-m <msg>` or `-F <file>` is given and `-a`, `-s`, and `-u <key-id>`
34 are absent, `-a` is implied.
36 Otherwise just a tag reference for the SHA-1 object name of the commit object is
37 created (i.e. a lightweight tag).
39 A GnuPG signed tag object will be created when `-s` or `-u
40 <key-id>` is used. When `-u <key-id>` is not used, the
41 committer identity for the current user is used to find the
42 GnuPG key for signing. The configuration variable `gpg.program`
43 is used to specify custom GnuPG binary.
45 Tag objects (created with `-a`, `s`, or `-u`) are called "annotated"
46 tags; they contain a creation date, the tagger name and e-mail, a
47 tagging message, and an optional GnuPG signature. Whereas a
48 "lightweight" tag is simply a name for an object (usually a commit
51 Annotated tags are meant for release while lightweight tags are meant
52 for private or temporary object labels. For this reason, some git
53 commands for naming objects (like `git describe`) will ignore
54 lightweight tags by default.
61 Make an unsigned, annotated tag object
65 Make a GPG-signed tag, using the default e-mail address's key.
68 --local-user=<key-id>::
69 Make a GPG-signed tag, using the given key.
73 Replace an existing tag with the given name (instead of failing)
77 Delete existing tags with the given names.
81 Verify the gpg signature of the given tag names.
84 <num> specifies how many lines from the annotation, if any,
85 are printed when using -l.
86 The default is not to print any annotation lines.
87 If no number is given to `-n`, only the first line is printed.
88 If the tag is not annotated, the commit message is displayed instead.
92 List tags with names that match the given pattern (or all if no
93 pattern is given). Running "git tag" without arguments also
94 lists all tags. The pattern is a shell wildcard (i.e., matched
95 using fnmatch(3)). Multiple patterns may be given; if any of
96 them matches, the tag is shown.
98 --column[=<options>]::
100 Display tag listing in columns. See configuration variable
101 column.tag for option syntax.`--column` and `--no-column`
102 without options are equivalent to 'always' and 'never' respectively.
104 This option is only applicable when listing tags without annotation lines.
106 --contains [<commit>]::
107 Only list tags which contain the specified commit (HEAD if not
110 --points-at <object>::
111 Only list tags of the given object.
115 Use the given tag message (instead of prompting).
116 If multiple `-m` options are given, their values are
117 concatenated as separate paragraphs.
118 Implies `-a` if none of `-a`, `-s`, or `-u <key-id>`
123 Take the tag message from the given file. Use '-' to
124 read the message from the standard input.
125 Implies `-a` if none of `-a`, `-s`, or `-u <key-id>`
129 This option sets how the tag message is cleaned up.
130 The '<mode>' can be one of 'verbatim', 'whitespace' and 'strip'. The
131 'strip' mode is default. The 'verbatim' mode does not change message at
132 all, 'whitespace' removes just leading/trailing whitespace lines and
133 'strip' removes both whitespace and commentary.
136 The name of the tag to create, delete, or describe.
137 The new tag name must pass all checks defined by
138 linkgit:git-check-ref-format[1]. Some of these checks
139 may restrict the characters allowed in a tag name.
143 The object that the new tag will refer to, usually a commit.
149 By default, 'git tag' in sign-with-default mode (-s) will use your
150 committer identity (of the form "Your Name <\your@email.address>") to
151 find a key. If you want to use a different default key, you can specify
152 it in the repository configuration as follows:
154 -------------------------------------
156 signingkey = <gpg-key-id>
157 -------------------------------------
166 What should you do when you tag a wrong commit and you would
169 If you never pushed anything out, just re-tag it. Use "-f" to
170 replace the old one. And you're done.
172 But if you have pushed things out (or others could just read
173 your repository directly), then others will have already seen
174 the old tag. In that case you can do one of two things:
177 Just admit you screwed up, and use a different name. Others have
178 already seen one tag-name, and if you keep the same name, you
179 may be in the situation that two people both have "version X",
180 but they actually have 'different' "X"'s. So just call it "X.1"
184 You really want to call the new version "X" too, 'even though'
185 others have already seen the old one. So just use 'git tag -f'
186 again, as if you hadn't already published the old one.
188 However, Git does *not* (and it should not) change tags behind
189 users back. So if somebody already got the old tag, doing a
190 'git pull' on your tree shouldn't just make them overwrite the old
193 If somebody got a release tag from you, you cannot just change
194 the tag for them by updating your own one. This is a big
195 security issue, in that people MUST be able to trust their
196 tag-names. If you really want to do the insane thing, you need
197 to just fess up to it, and tell people that you messed up. You
198 can do that by making a very public announcement saying:
201 Ok, I messed up, and I pushed out an earlier version tagged as X. I
202 then fixed something, and retagged the *fixed* tree as X again.
204 If you got the wrong tag, and want the new one, please delete
205 the old one and fetch the new one by doing:
208 git fetch origin tag X
210 to get my updated tag.
212 You can test which tag you have by doing
216 which should return 0123456789abcdef.. if you have the new version.
218 Sorry for the inconvenience.
221 Does this seem a bit complicated? It *should* be. There is no
222 way that it would be correct to just "fix" it automatically.
223 People need to know that their tags might have been changed.
226 On Automatic following
227 ~~~~~~~~~~~~~~~~~~~~~~
229 If you are following somebody else's tree, you are most likely
230 using remote-tracking branches (`refs/heads/origin` in traditional
231 layout, or `refs/remotes/origin/master` in the separate-remote
232 layout). You usually want the tags from the other end.
234 On the other hand, if you are fetching because you would want a
235 one-shot merge from somebody else, you typically do not want to
236 get tags from there. This happens more often for people near
237 the toplevel but not limited to them. Mere mortals when pulling
238 from each other do not necessarily want to automatically get
239 private anchor point tags from the other person.
241 Often, "please pull" messages on the mailing list just provide
242 two pieces of information: a repo URL and a branch name; this
243 is designed to be easily cut&pasted at the end of a 'git fetch'
247 Linus, please pull from
249 git://git..../proj.git master
251 to get the following updates...
257 $ git pull git://git..../proj.git master
260 In such a case, you do not want to automatically follow the other
263 One important aspect of Git is its distributed nature, which
264 largely means there is no inherent "upstream" or
265 "downstream" in the system. On the face of it, the above
266 example might seem to indicate that the tag namespace is owned
267 by the upper echelon of people and that tags only flow downwards, but
268 that is not the case. It only shows that the usage pattern
269 determines who are interested in whose tags.
271 A one-shot pull is a sign that a commit history is now crossing
272 the boundary between one circle of people (e.g. "people who are
273 primarily interested in the networking part of the kernel") who may
274 have their own set of tags (e.g. "this is the third release
275 candidate from the networking group to be proposed for general
276 consumption with 2.6.21 release") to another circle of people
277 (e.g. "people who integrate various subsystem improvements").
278 The latter are usually not interested in the detailed tags used
279 internally in the former group (that is what "internal" means).
280 That is why it is desirable not to follow tags automatically in
283 It may well be that among networking people, they may want to
284 exchange the tags internal to their group, but in that workflow
285 they are most likely tracking each other's progress by
286 having remote-tracking branches. Again, the heuristic to automatically
287 follow such tags is a good thing.
293 If you have imported some changes from another VCS and would like
294 to add tags for major releases of your work, it is useful to be able
295 to specify the date to embed inside of the tag object; such data in
296 the tag object affects, for example, the ordering of tags in the
299 To set the date used in future tag objects, set the environment
300 variable GIT_COMMITTER_DATE (see the later discussion of possible
301 values; the most common form is "YYYY-MM-DD HH:MM").
306 $ GIT_COMMITTER_DATE="2006-10-02 10:31" git tag -s v1.0.1
309 include::date-formats.txt[]
313 linkgit:git-check-ref-format[1].
317 Part of the linkgit:git[1] suite