git-remote-ext

git-remote-ext url

git-remote-ext is a remote helper that allows arbitrary external commands to handle Git transport. The `ext::` URL scheme specifies a command to run for communication, enabling custom transport mechanisms like specific SSH commands or non-standard protocols.Template variables (such as `%s`, `%S`, `%G`) allow dynamic command construction based on the Git service being requested. This helper is typically not invoked directly but is used through `ext::` URLs in remote configurations.

URL

ext:: URL with command template.

Replaced with service name (e.g. `upload-pack`, `receive-pack`, `upload-archive`) without the `git-` prefix.

Replaced with long service name (e.g. `git-upload-pack`) including the `git-` prefix.

Placed as the first argument; suppresses the service-name argument so the remote command can accept extra positional arguments.

Only valid as the second argument; injects the Git protocol version (e.g. `version=2`) as an environment setting.

Literal percent sign.

Display help information.

Security sensitive: commands run from URLs. Internal helper, not typically used directly. Used through ext:: URLs.

git-remote-ext is a Git remote helper enabling custom transport mechanisms through arbitrary command execution.

git-remote(1), git-remote-fd(1)