git/Documentation/config/user.txt
Fabian Stelzer 350a2518c8 ssh signing: support non ssh-* keytypes
The user.signingKey config for ssh signing supports either a path to a
file containing the key or for the sake of convenience a literal string
with the ssh public key. To differentiate between those two cases we
check if the first few characters contain "ssh-" which is unlikely to be
the start of a path. ssh supports other key types which are not prefixed
with "ssh-" and will currently be treated as a file path and therefore
fail to load. To remedy this we move the prefix check into its own
function and introduce the prefix `key::` for literal ssh keys. This way
we don't need to add new key types when they become available. The
existing `ssh-` prefix is retained for compatibility with current user
configs but removed from the official documentation to discourage its
use.

Signed-off-by: Fabian Stelzer <fs@gigacodes.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-19 09:05:25 -08:00

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user.name::
user.email::
author.name::
author.email::
committer.name::
committer.email::
The `user.name` and `user.email` variables determine what ends
up in the `author` and `committer` field of commit
objects.
If you need the `author` or `committer` to be different, the
`author.name`, `author.email`, `committer.name` or
`committer.email` variables can be set.
Also, all of these can be overridden by the `GIT_AUTHOR_NAME`,
`GIT_AUTHOR_EMAIL`, `GIT_COMMITTER_NAME`,
`GIT_COMMITTER_EMAIL` and `EMAIL` environment variables.
+
Note that the `name` forms of these variables conventionally refer to
some form of a personal name. See linkgit:git-commit[1] and the
environment variables section of linkgit:git[1] for more information on
these settings and the `credential.username` option if you're looking
for authentication credentials instead.
user.useConfigOnly::
Instruct Git to avoid trying to guess defaults for `user.email`
and `user.name`, and instead retrieve the values only from the
configuration. For example, if you have multiple email addresses
and would like to use a different one for each repository, then
with this configuration option set to `true` in the global config
along with a name, Git will prompt you to set up an email before
making new commits in a newly cloned repository.
Defaults to `false`.
user.signingKey::
If linkgit:git-tag[1] or linkgit:git-commit[1] is not selecting the
key you want it to automatically when creating a signed tag or
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.