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</head>
<body class="manpage">
<div id="header">
<h1>git-remote-ext(1) Manual Page</h1>
<h2 id="_name">NAME</h2>
<div class="sectionbody">
<p>git-remote-ext - Bridge smart transport to external command.</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content">git remote add &lt;nick&gt; "ext::&lt;command&gt;[ &lt;arguments&gt;&#8230;&#8203;]"</pre>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph">
<p>This remote helper uses the specified <em>&lt;command&gt;</em> to connect
to a remote Git server.</p>
</div>
<div class="paragraph">
<p>Data written to stdin of the specified <em>&lt;command&gt;</em> 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 &lt;command&gt; is assumed to be received from
the same service.</p>
</div>
<div class="paragraph">
<p>Command and arguments are separated by an unescaped space.</p>
</div>
<div class="paragraph">
<p>The following sequences have a special meaning:</p>
</div>
<div class="dlist">
<dl>
<dt class="hdlist1">'% '</dt>
<dd>
<p>Literal space in command or argument.</p>
</dd>
<dt class="hdlist1"><em>%%</em></dt>
<dd>
<p>Literal percent sign.</p>
</dd>
<dt class="hdlist1"><em>%s</em></dt>
<dd>
<p>Replaced with name (receive-pack, upload-pack, or
upload-archive) of the service Git wants to invoke.</p>
</dd>
<dt class="hdlist1"><em>%S</em></dt>
<dd>
<p>Replaced with long name (git-receive-pack,
git-upload-pack, or git-upload-archive) of the service
Git wants to invoke.</p>
</dd>
<dt class="hdlist1"><em>%G</em> (must be the first characters in an argument)</dt>
<dd>
<p>This argument will not be passed to <em>&lt;command&gt;</em>. 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.</p>
<div class="paragraph">
<p>This is useful if the remote side is git:// server accessed over
some tunnel.</p>
</div>
</dd>
<dt class="hdlist1"><em>%V</em> (must be first characters in argument)</dt>
<dd>
<p>This argument will not be passed to <em>&lt;command&gt;</em>. 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).</p>
</dd>
</dl>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_environment_variables">ENVIRONMENT VARIABLES</h2>
<div class="sectionbody">
<div class="dlist">
<dl>
<dt class="hdlist1">GIT_TRANSLOOP_DEBUG</dt>
<dd>
<p>If set, prints debugging information about various reads/writes.</p>
</dd>
</dl>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_environment_variables_passed_to_command">ENVIRONMENT VARIABLES PASSED TO COMMAND</h2>
<div class="sectionbody">
<div class="dlist">
<dl>
<dt class="hdlist1">GIT_EXT_SERVICE</dt>
<dd>
<p>Set to long name (git-upload-pack, etc&#8230;&#8203;) of service helper needs
to invoke.</p>
</dd>
<dt class="hdlist1">GIT_EXT_SERVICE_NOPREFIX</dt>
<dd>
<p>Set to long name (upload-pack, etc&#8230;&#8203;) of service helper needs
to invoke.</p>
</dd>
</dl>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_examples">EXAMPLES</h2>
<div class="sectionbody">
<div class="paragraph">
<p>This remote helper is transparently used by Git when
you use commands such as "git fetch &lt;URL&gt;", "git clone &lt;URL&gt;",
, "git push &lt;URL&gt;" or "git remote add &lt;nick&gt; &lt;URL&gt;", where &lt;URL&gt;
begins with <code>ext::</code>.  Examples:</p>
</div>
<div class="dlist">
<dl>
<dt class="hdlist1">"ext::ssh -i /home/foo/.ssh/somekey user&#64;host.example %S <em>foo/repo</em>"</dt>
<dd>
<p>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.</p>
</dd>
<dt class="hdlist1">"ext::socat -t3600 - ABSTRACT-CONNECT:/git-server %G/somerepo"</dt>
<dd>
<p>Represents repository with path /somerepo accessible over
git protocol at the abstract namespace address /git-server.</p>
</dd>
<dt class="hdlist1">"ext::git-server-alias foo %G/repo"</dt>
<dd>
<p>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.</p>
</dd>
<dt class="hdlist1">"ext::git-server-alias foo %G/repo %Vfoo"</dt>
<dd>
<p>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).</p>
</dd>
<dt class="hdlist1">"ext::git-server-alias foo %G/repo% with% spaces %Vfoo"</dt>
<dd>
<p>Represents a repository with path <code>/repo</code> <code>with</code> <code>spaces</code> 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).</p>
</dd>
<dt class="hdlist1">"ext::git-ssl foo.example /bar"</dt>
<dd>
<p>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).</p>
</dd>
</dl>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph">
<p><a href="gitremote-helpers.html">gitremote-helpers(7)</a></p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_git">GIT</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Part of the <a href="git.html">git(1)</a> suite</p>
</div>
</div>
</div>
</div>
<div id="footer">
<div id="footer-text">
Last updated 2025-02-14 21:38:14 -0800
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