If `-m <msg>` or `-F <file>` is given and `-a`, `-s`, and `-u <key-id>`
are absent, `-a` is implied.
-Otherwise just a tag reference for the SHA1 object name of the commit object is
+Otherwise just a tag reference for the SHA-1 object name of the commit object is
created (i.e. a lightweight tag).
A GnuPG signed tag object will be created when `-s` or `-u
GnuPG key for signing. The configuration variable `gpg.program`
is used to specify custom GnuPG binary.
+Tag objects (created with `-a`, `s`, or `-u`) are called "annotated"
+tags; they contain a creation date, the tagger name and e-mail, a
+tagging message, and an optional GnuPG signature. Whereas a
+"lightweight" tag is simply a name for an object (usually a commit
+object).
+
+Annotated tags are meant for release while lightweight tags are meant
+for private or temporary object labels. For this reason, some git
+commands for naming objects (like `git describe`) will ignore
+lightweight tags by default.
+
OPTIONS
-------
+
This option is only applicable when listing tags without annotation lines.
---contains <commit>::
- Only list tags which contain the specified commit.
+--contains [<commit>]::
+ Only list tags which contain the specified commit (HEAD if not
+ specified).
--points-at <object>::
Only list tags of the given object.