mktag doc: update to explain why to use this

Change the mktag documentation to compare itself to the similar "hash-object -t tag" command. Before this someone reading the documentation wouldn't have much of an idea what the difference was. Let's allude to our own validation logic, and cross-link the "mktag" and "hash-object" documentation to aid discover-ability. A follow-up change to migrate "mktag" to use "fsck" validation will make the part about validation logic clearer. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed Jan 5, 2021 at 20:42 UTC 18430ed363f469d5fe6e143857b7fe72aca807ba
1 file changed +13 -4
Documentation/git-mktag.txt
+13 -4
index 1b0667e372..20af1915e9 100644 --- a/Documentation/git-mktag.txt +++ b/Documentation/git-mktag.txt @@ -3,7 +3,7 @@ git-mktag(1) NAME ---- -git-mktag - Creates a tag object +git-mktag - Creates a tag object with extra validation SYNOPSIS @@ -13,10 +13,19 @@ SYNOPSIS DESCRIPTION ----------- -Reads a tag contents on standard input and creates a tag object -that can also be used to sign other objects. -The output is the new tag's <object> identifier. +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 linkgit: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 sanity check. Tag Format ----------