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-rw-r--r--Documentation/config/user.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/config/user.txt b/Documentation/config/user.txt
index 59aec7c3ae..ec9233b060 100644
--- a/Documentation/config/user.txt
+++ b/Documentation/config/user.txt
@@ -36,3 +36,13 @@ user.signingKey::
commit, you can override the default selection with this variable.
This option is passed unchanged to gpg's --local-user parameter,
so you may specify a key using any method that gpg supports.
+ If gpg.format is set to `ssh` this can contain the path to either
+ your private ssh key or the public key when ssh-agent is used.
+ Alternatively it can contain a public key prefixed with `key::`
+ directly (e.g.: "key::ssh-rsa XXXXXX identifier"). The private key
+ needs to be available via ssh-agent. If not set git will call
+ gpg.ssh.defaultKeyCommand (e.g.: "ssh-add -L") and try to use the
+ first key available. For backward compatibility, a raw key which
+ begins with "ssh-", such as "ssh-rsa XXXXXX identifier", is treated
+ as "key::ssh-rsa XXXXXX identifier", but this form is deprecated;
+ use the `key::` form instead.