2 .\" Title: git-show-ref
3 .\" Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
4 .\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
7 .\" Source: Git 2.44.0.368.gc75fd8d815
10 .TH "GIT\-SHOW\-REF" "1" "2024\-03\-25" "Git 2\&.44\&.0\&.368\&.gc75fd8" "Git Manual"
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12 .\" * Define some portability stuff
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15 .\" http://bugs.debian.org/507673
16 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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31 git-show-ref \- List references in a local repository
35 \fIgit show\-ref\fR [\-\-head] [\-d | \-\-dereference]
36 [\-s | \-\-hash[=<n>]] [\-\-abbrev[=<n>]] [\-\-tags]
37 [\-\-heads] [\-\-] [<pattern>\&...]
38 \fIgit show\-ref\fR \-\-verify [\-q | \-\-quiet] [\-d | \-\-dereference]
39 [\-s | \-\-hash[=<n>]] [\-\-abbrev[=<n>]]
41 \fIgit show\-ref\fR \-\-exclude\-existing[=<pattern>]
42 \fIgit show\-ref\fR \-\-exists <ref>
47 Displays references available in a local repository along with the associated commit IDs\&. Results can be filtered using a pattern and tags can be dereferenced into object IDs\&. Additionally, it can be used to test whether a particular ref exists\&.
49 By default, shows the tags, heads, and remote refs\&.
51 The \fB\-\-exclude\-existing\fR form is a filter that does the inverse\&. It reads refs from stdin, one ref per line, and shows those that don\(cqt exist in the local repository\&.
53 The \fB\-\-exists\fR form can be used to check for the existence of a single references\&. This form does not verify whether the reference resolves to an actual object\&.
55 Use of this utility is encouraged in favor of directly accessing files under the \fB\&.git\fR directory\&.
60 Show the HEAD reference, even if it would normally be filtered out\&.
65 Limit to "refs/heads" and "refs/tags", respectively\&. These options are not mutually exclusive; when given both, references stored in "refs/heads" and "refs/tags" are displayed\&.
70 Dereference tags into object IDs as well\&. They will be shown with
77 Only show the OID, not the reference name\&. When combined with
78 \fB\-\-dereference\fR, the dereferenced tag will still be shown after the OID\&.
83 Enable stricter reference checking by requiring an exact ref path\&. Aside from returning an error code of 1, it will also print an error message if
90 Check whether the given reference exists\&. Returns an exit code of 0 if it does, 2 if it is missing, and 1 in case looking up the reference failed with an error other than the reference being missing\&.
95 Abbreviate the object name\&. When using
96 \fB\-\-hash\fR, you do not have to say
97 \fB\-\-hash \-\-abbrev\fR;
104 Do not print any results to stdout\&. Can be used with
106 to silently check if a reference exists\&.
109 \-\-exclude\-existing[=<pattern>]
113 act as a filter that reads refs from stdin of the form
114 \fB^(?:<anything>\es)?<refname>(?:\e^{})?$\fR
115 and performs the following actions on each: (1) strip
117 at the end of line if any; (2) ignore if pattern is provided and does not head\-match refname; (3) warn if refname is not a well\-formed refname and skip; (4) ignore if refname is a ref that exists in the local repository; (5) otherwise output the line\&.
122 Show references matching one or more patterns\&. Patterns are matched from the end of the full name, and only complete parts are matched, e\&.g\&.
125 \fIrefs/heads/master\fR,
126 \fIrefs/remotes/origin/master\fR,
127 \fIrefs/tags/jedi/master\fR
129 \fIrefs/heads/mymaster\fR
131 \fIrefs/remotes/master/jedi\fR\&.
135 The output is in the format:
154 $ git show\-ref \-\-head \-\-dereference
155 832e76a9899f560a90ffd62ae2ce83bbeff58f54 HEAD
156 832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/master
157 832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/origin
158 3521017556c5de4159da4615a39fa4d5d2c279b5 refs/tags/v0\&.99\&.9c
159 6ddc0964034342519a87fe013781abf31c6db6ad refs/tags/v0\&.99\&.9c^{}
160 055e4ae3ae6eb344cbabf2a5256a49ea66040131 refs/tags/v1\&.0rc4
161 423325a2d24638ddcc82ce47be5e40be550f4507 refs/tags/v1\&.0rc4^{}
169 When using \fB\-\-hash\fR (and not \fB\-\-dereference\fR), the output is in the format:
188 $ git show\-ref \-\-heads \-\-hash
189 2e3ba0114a1f52b47df29743d6915d056be13278
190 185008ae97960c8d551adcd9e23565194651b5d1
191 03adf42c988195b50e1a1935ba5fcbc39b2b029b
200 To show all references called "master", whether tags or heads or anything else, and regardless of how deep in the reference naming hierarchy they are, use:
213 This will show "refs/heads/master" but also "refs/remote/other\-repo/master", if such references exist\&.
215 When using the \fB\-\-verify\fR flag, the command requires an exact path:
221 git show\-ref \-\-verify refs/heads/master
228 will only match the exact branch called "master"\&.
230 If nothing matches, \fBgit show\-ref\fR will return an error code of 1, and in the case of verification, it will show an error message\&.
232 For scripting, you can ask it to be quiet with the \fB\-\-quiet\fR flag, which allows you to do things like
238 git show\-ref \-\-quiet \-\-verify \-\- "refs/heads/$headname" ||
239 echo "$headname is not a valid branch"
246 to check whether a particular branch exists or not (notice how we don\(cqt actually want to show any results, and we want to use the full refname for it in order to not trigger the problem with ambiguous partial matches)\&.
248 To show only tags, or only proper branch heads, use \fB\-\-tags\fR and/or \fB\-\-heads\fR respectively (using both means that it shows tags and heads, but not other random references under the refs/ subdirectory)\&.
250 To do automatic tag object dereferencing, use the \fB\-d\fR or \fB\-\-dereference\fR flag, so you can do
256 git show\-ref \-\-tags \-\-dereference
263 to get a listing of all tags together with what they dereference\&.
266 \fB\&.git/refs/*\fR, \fB\&.git/packed\-refs\fR
269 \fBgit-for-each-ref\fR(1), \fBgit-ls-remote\fR(1), \fBgit-update-ref\fR(1), \fBgitrepository-layout\fR(5)
272 Part of the \fBgit\fR(1) suite