GIT-REMOTE-EXT(1)                                            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 rest of the argument.
              Default is not to send such a request.

              This is useful if 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 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 user on remote side. This avoids needing to
              edit .ssh/config.


       "ext::socat -t3600 - ABSTRACT-CONNECT:/git-server %G/somerepo"
              Represents repository with path /somerepo accessable over git
              protocol at 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).


DOCUMENTATION
       Documentation by Ilari Liusvaara, Jonathan Nieder and the git list
       <git@vger.kernel.org: mailto:git@vger.kernel.org>


GIT
       Part of the git(1) suite




                                                             GIT-REMOTE-EXT(1)
