Subject: [PATCH v4 03/20] mktag doc: update to explain why to use this

From: Ævar Arnfjörð Bjarmason <[email-masked]>
Date: Wed, 23 Dec 2020 02:35:48 +0100

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 <[email-masked]>
---
 Documentation/git-hash-object.txt |  4 ++++
 Documentation/git-mktag.txt       | 21 +++++++++++++++++----
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/Documentation/git-hash-object.txt b/Documentation/git-hash-object.txt
index df9e2c58bd..c535661ced 100644
--- a/Documentation/git-hash-object.txt
+++ b/Documentation/git-hash-object.txt
@@ -58,6 +58,10 @@ OPTIONS
 	stress-testing Git itself or reproducing characteristics of corrupt or
 	bogus objects encountered in the wild.
 
+SEE ALSO
+--------
+linkgit:git-mktag[1]
+
 GIT
 ---
 Part of the linkgit:git[1] suite
diff --git a/Documentation/git-mktag.txt b/Documentation/git-mktag.txt
index 1b0667e372..adc63f6d4e 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
 ----------
@@ -34,6 +43,10 @@ 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.
 
+SEE ALSO
+--------
+linkgit:git-hash-object[1],
+
 GIT
 ---
 Part of the linkgit:git[1] suite
-- 
2.29.2.222.g5d2a92d10f8