GIT-MKTAG(1) Git Manual GIT-MKTAG(1)
NAME
git-mktag - Creates a tag object with extra validation
SYNOPSIS
git mktag
DESCRIPTION
Reads a tag contents on standard input and creates a tag object. The output is the new
tag's <object> identifier.
This command is mostly equivalent to git-hash-object(1) invoked with -t tag -w --stdin.
I.e. both of these will create and write a tag found in my-tag:
git mktag <my-tag
git hash-object -t tag -w --stdin <my-tag
The difference is that mktag will die before writing the tag if the tag doesn't pass a
git-fsck(1) check.
The "fsck" check done mktag is stricter than what git-fsck(1) would run by default in that
all fsck.<msg-id> messages are promoted from warnings to errors (so e.g. a missing
"tagger" line is an error).
Extra headers in the object are also an error under mktag, but ignored by git-fsck(1).
This extra check can be turned off by setting the appropriate fsck.<msg-id> varible:
git -c fsck.extraHeaderEntry=ignore mktag <my-tag-with-headers
OPTIONS
--strict
By default mktag turns on the equivalent of git-fsck(1) --strict mode. Use --no-strict
to disable it.
TAG FORMAT
A tag signature file, to be fed to this command's standard input, has a very simple fixed
format: four lines of
object <hash>
type <typename>
tag <tagname>
tagger <tagger>
followed by some optional free-form message (some tags created by older Git may not have
tagger line). The message, when it exists, is separated by a blank line from the header.
The message part may contain a signature that Git itself doesn't care about, but that can
be verified with gpg.
GIT
Part of the git(1) suite
Git 2.34.1 07/09/2025 GIT-MKTAG(1)
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