GIT-REMOTE-EXT(1)		  Git Manual		     GIT-REMOTE-EXT(1)

NAME
       git-remote-ext - Bridge smart transport to external command.

SYNOPSIS
       git remote add <nick> "ext::<command>[ <arguments>...]"


DESCRIPTION
       This remote helper uses the specified <command> to connect to a remote
       Git server.

       Data written to stdin of the specified <command> is assumed to be sent
       to a git:// server, git-upload-pack, git-receive-pack or
       git-upload-archive (depending on situation), and data read from stdout
       of <command> is assumed to be received from the same service.

       Command and arguments are separated by an unescaped space.

       The following sequences have a special meaning:

       '% '
	   Literal space in command or argument.

       %%
	   Literal percent sign.

       %s
	   Replaced with name (receive-pack, upload-pack, or upload-archive)
	   of the service Git wants to invoke.

       %S
	   Replaced with long name (git-receive-pack, git-upload-pack, or
	   git-upload-archive) of the service Git wants to invoke.

       %G (must be the first characters in an argument)
	   This argument will not be passed to <command>. Instead, it will
	   cause the helper to start by sending git:// service requests to the
	   remote side with the service field set to an appropriate value and
	   the repository field set to the rest of the argument. Default is
	   not to send such a request.

	   This is useful if the remote side is git:// server accessed over
	   some tunnel.

       %V (must be first characters in argument)
	   This argument will not be passed to <command>. Instead it sets the
	   vhost field in the git:// service request (to the rest of the
	   argument). Default is not to send vhost in such request (if sent).

ENVIRONMENT VARIABLES
       GIT_TRANSLOOP_DEBUG
	   If set, prints debugging information about various reads/writes.

ENVIRONMENT VARIABLES PASSED TO COMMAND
       GIT_EXT_SERVICE
	   Set to long name (git-upload-pack, etc...) of service helper needs
	   to invoke.

       GIT_EXT_SERVICE_NOPREFIX
	   Set to long name (upload-pack, etc...) of service helper needs to
	   invoke.

EXAMPLES
       This remote helper is transparently used by Git when you use commands
       such as "git fetch <URL>", "git clone <URL>", , "git push <URL>" or
       "git remote add <nick> <URL>", where <URL> begins with ext::. Examples:

       "ext::ssh -i /home/foo/.ssh/somekey user@host.example %S foo/repo"
	   Like host.example:foo/repo, but use /home/foo/.ssh/somekey as
	   keypair and user as the user on the remote side. This avoids the
	   need to edit .ssh/config.

       "ext::socat -t3600 - ABSTRACT-CONNECT:/git-server %G/somerepo"
	   Represents repository with path /somerepo accessible over git
	   protocol at the abstract namespace address /git-server.

       "ext::git-server-alias foo %G/repo"
	   Represents a repository with path /repo accessed using the helper
	   program "git-server-alias foo". The path to the repository and type
	   of request are not passed on the command line but as part of the
	   protocol stream, as usual with git:// protocol.

       "ext::git-server-alias foo %G/repo %Vfoo"
	   Represents a repository with path /repo accessed using the helper
	   program "git-server-alias foo". The hostname for the remote server
	   passed in the protocol stream will be "foo" (this allows multiple
	   virtual Git servers to share a link-level address).

       "ext::git-server-alias foo %G/repo% with% spaces %Vfoo"
	   Represents a repository with path /repo with spaces accessed using
	   the helper program "git-server-alias foo". The hostname for the
	   remote server passed in the protocol stream will be "foo" (this
	   allows multiple virtual Git servers to share a link-level address).

       "ext::git-ssl foo.example /bar"
	   Represents a repository accessed using the helper program "git-ssl
	   foo.example /bar". The type of request can be determined by the
	   helper using environment variables (see above).

SEE ALSO
       gitremote-helpers(7)

GIT
       Part of the git(1) suite

Git 2.51.0			  2025-08-17		     GIT-REMOTE-EXT(1)