git-push.html - pub/scm/git/git-htmldocs - Git at Google

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 </head>
 <body class="manpage">
 <div id="header">
 <h1>git-push(1) Manual Page</h1>
 <h2 id="_name">NAME</h2>
 <div class="sectionbody">
 <p>git-push - Update remote refs along with associated objects</p>
 </div>
 </div>
 <div id="content">
 <div class="sect1">
 <h2 id="_synopsis">SYNOPSIS</h2>
 <div class="sectionbody">
 <div class="verseblock">
 <pre class="content"><em>git push</em> [--all | --branches | --mirror | --tags] [--follow-tags] [--atomic] [-n | --dry-run] [--receive-pack=&lt;git-receive-pack&gt;]
            [--repo=&lt;repository&gt;] [-f | --force] [-d | --delete] [--prune] [-q | --quiet] [-v | --verbose]
            [-u | --set-upstream] [-o &lt;string&gt; | --push-option=&lt;string&gt;]
            [--[no-]signed|--signed=(true|false|if-asked)]
            [--force-with-lease[=&lt;refname&gt;[:&lt;expect&gt;]] [--force-if-includes]]
            [--no-verify] [&lt;repository&gt; [&lt;refspec&gt;&#8230;&#8203;]]</pre>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_description">DESCRIPTION</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>Updates remote refs using local refs, while sending objects
 necessary to complete the given refs.</p>
 </div>
 <div class="paragraph">
 <p>You can make interesting things happen to a repository
 every time you push into it, by setting up <em>hooks</em> there.  See
 documentation for <a href="git-receive-pack.html">git-receive-pack(1)</a>.</p>
 </div>
 <div class="paragraph">
 <p>When the command line does not specify where to push with the
 <em>&lt;repository&gt;</em> argument, <code>branch.*.remote</code> configuration for the
 current branch is consulted to determine where to push.  If the
 configuration is missing, it defaults to <em>origin</em>.</p>
 </div>
 <div class="paragraph">
 <p>When the command line does not specify what to push with <em>&lt;refspec&gt;</em>...
 arguments or <code>--all</code>, <code>--mirror</code>, <code>--tags</code> options, the command finds
 the default <em>&lt;refspec&gt;</em> by consulting <code>remote.*.push</code> configuration,
 and if it is not found, honors <code>push.default</code> configuration to decide
 what to push (See <a href="git-config.html">git-config(1)</a> for the meaning of <code>push.default</code>).</p>
 </div>
 <div class="paragraph">
 <p>When neither the command-line nor the configuration specifies what to
 push, the default behavior is used, which corresponds to the <code>simple</code>
 value for <code>push.default</code>: the current branch is pushed to the
 corresponding upstream branch, but as a safety measure, the push is
 aborted if the upstream branch does not have the same name as the
 local one.</p>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_options">OPTIONS<a id="OPTIONS"></a></h2>
 <div class="sectionbody">
 <div class="dlist">
 <dl>
 <dt class="hdlist1">&lt;repository&gt;</dt>
 <dd>
 <p>The "remote" repository that is the destination of a push
 operation.  This parameter can be either a URL
 (see the section <a href="#URLS">GIT URLS</a> below) or the name
 of a remote (see the section <a href="#REMOTES">REMOTES</a> below).</p>
 </dd>
 <dt class="hdlist1">&lt;refspec&gt;&#8230;&#8203;</dt>
 <dd>
 <p>Specify what destination ref to update with what source object.
 The format of a &lt;refspec&gt; parameter is an optional plus
 <code>+</code>, followed by the source object &lt;src&gt;, followed
 by a colon <code>:</code>, followed by the destination ref &lt;dst&gt;.</p>
 <div class="paragraph">
 <p>The &lt;src&gt; is often the name of the branch you would want to push, but
 it can be any arbitrary "SHA-1 expression", such as <code>master~4</code> or
 <code>HEAD</code> (see <a href="gitrevisions.html">gitrevisions(7)</a>).</p>
 </div>
 <div class="paragraph">
 <p>The &lt;dst&gt; tells which ref on the remote side is updated with this
 push. Arbitrary expressions cannot be used here, an actual ref must
 be named.
 If <code>git</code> <code>push</code> [<em>&lt;repository&gt;</em>] without any <em>&lt;refspec&gt;</em> argument is set to
 update some ref at the destination with <em>&lt;src&gt;</em> with
 <code>remote.</code><em>&lt;repository&gt;</em><code>.push</code> configuration variable, <code>:</code><em>&lt;dst&gt;</em> part can
 be omitted&#8212;&#8203;such a push will update a ref that <em>&lt;src&gt;</em> normally updates
 without any <em>&lt;refspec&gt;</em> on the command line.  Otherwise, missing
 <code>:</code><em>&lt;dst&gt;</em> means to update the same ref as the <em>&lt;src&gt;</em>.</p>
 </div>
 <div class="paragraph">
 <p>If &lt;dst&gt; doesn&#8217;t start with <code>refs/</code> (e.g. <code>refs/heads/master</code>) we will
 try to infer where in <code>refs/*</code> on the destination &lt;repository&gt; it
 belongs based on the type of &lt;src&gt; being pushed and whether &lt;dst&gt;
 is ambiguous.</p>
 </div>
 <div class="openblock">
 <div class="content">
 <div class="ulist">
 <ul>
 <li>
 <p>If &lt;dst&gt; unambiguously refers to a ref on the &lt;repository&gt; remote,
 then push to that ref.</p>
 </li>
 <li>
 <p>If &lt;src&gt; resolves to a ref starting with refs/heads/ or refs/tags/,
 then prepend that to &lt;dst&gt;.</p>
 </li>
 <li>
 <p>Other ambiguity resolutions might be added in the future, but for
 now any other cases will error out with an error indicating what we
 tried, and depending on the <code>advice.pushUnqualifiedRefname</code>
 configuration (see <a href="git-config.html">git-config(1)</a>) suggest what refs/
 namespace you may have wanted to push to.</p>
 </li>
 </ul>
 </div>
 </div>
 </div>
 <div class="paragraph">
 <p>The object referenced by &lt;src&gt; is used to update the &lt;dst&gt; reference
 on the remote side. Whether this is allowed depends on where in
 <code>refs/*</code> the &lt;dst&gt; reference lives as described in detail below, in
 those sections "update" means any modifications except deletes, which
 as noted after the next few sections are treated differently.</p>
 </div>
 <div class="paragraph">
 <p>The <code>refs/heads/*</code> namespace will only accept commit objects, and
 updates only if they can be fast-forwarded.</p>
 </div>
 <div class="paragraph">
 <p>The <code>refs/tags/*</code> namespace will accept any kind of object (as
 commits, trees and blobs can be tagged), and any updates to them will
 be rejected.</p>
 </div>
 <div class="paragraph">
 <p>It&#8217;s possible to push any type of object to any namespace outside of
 <code>refs/</code>{tags,heads}/*. In the case of tags and commits, these will be
 treated as if they were the commits inside <code>refs/heads/*</code> for the
 purposes of whether the update is allowed.</p>
 </div>
 <div class="paragraph">
 <p>I.e. a fast-forward of commits and tags outside <code>refs/</code>{tags,heads}/*
 is allowed, even in cases where what&#8217;s being fast-forwarded is not a
 commit, but a tag object which happens to point to a new commit which
 is a fast-forward of the commit the last tag (or commit) it&#8217;s
 replacing. Replacing a tag with an entirely different tag is also
 allowed, if it points to the same commit, as well as pushing a peeled
 tag, i.e. pushing the commit that existing tag object points to, or a
 new tag object which an existing commit points to.</p>
 </div>
 <div class="paragraph">
 <p>Tree and blob objects outside of <code>refs/</code>{tags,heads}/* will be treated
 the same way as if they were inside <code>refs/tags/*</code>, any update of them
 will be rejected.</p>
 </div>
 <div class="paragraph">
 <p>All of the rules described above about what&#8217;s not allowed as an update
 can be overridden by adding an the optional leading <code>+</code> to a refspec
 (or using <code>--force</code> command line option). The only exception to this
 is that no amount of forcing will make the <code>refs/heads/*</code> namespace
 accept a non-commit object. Hooks and configuration can also override
 or amend these rules, see e.g. <code>receive.denyNonFastForwards</code> in
 <a href="git-config.html">git-config(1)</a> and <code>pre-receive</code> and <code>update</code> in
 <a href="githooks.html">githooks(5)</a>.</p>
 </div>
 <div class="paragraph">
 <p>Pushing an empty &lt;src&gt; allows you to delete the &lt;dst&gt; ref from the
 remote repository. Deletions are always accepted without a leading <code>+</code>
 in the refspec (or <code>--force</code>), except when forbidden by configuration
 or hooks. See <code>receive.denyDeletes</code> in <a href="git-config.html">git-config(1)</a> and
 <code>pre-receive</code> and <code>update</code> in <a href="githooks.html">githooks(5)</a>.</p>
 </div>
 <div class="paragraph">
 <p>The special refspec <code>:</code> (or <code>+:</code> to allow non-fast-forward updates)
 directs Git to push "matching" branches: for every branch that exists on
 the local side, the remote side is updated if a branch of the same name
 already exists on the remote side.</p>
 </div>
 <div class="paragraph">
 <p><code>tag</code> <em>&lt;tag&gt;</em> means the same as <code>refs/tags/</code><em>&lt;tag&gt;</em><code>:refs/tags/</code><em>&lt;tag&gt;</em>.</p>
 </div>
 </dd>
 <dt class="hdlist1">--all</dt>
 <dt class="hdlist1">--branches</dt>
 <dd>
 <p>Push all branches (i.e. refs under <code>refs/heads/</code>); cannot be
 used with other &lt;refspec&gt;.</p>
 </dd>
 <dt class="hdlist1">--prune</dt>
 <dd>
 <p>Remove remote branches that don&#8217;t have a local counterpart. For example
 a remote branch <code>tmp</code> will be removed if a local branch with the same
 name doesn&#8217;t exist any more. This also respects refspecs, e.g.
 <code>git</code> <code>push</code> <code>--prune</code> <code>remote</code> <code>refs/heads/*:refs/tmp/*</code> would
 make sure that remote <code>refs/tmp/foo</code> will be removed if <code>refs/heads/foo</code>
 doesn&#8217;t exist.</p>
 </dd>
 <dt class="hdlist1">--mirror</dt>
 <dd>
 <p>Instead of naming each ref to push, specifies that all
 refs under <code>refs/</code> (which includes but is not
 limited to <code>refs/heads/</code>, <code>refs/remotes/</code>, and <code>refs/tags/</code>)
 be mirrored to the remote repository.  Newly created local
 refs will be pushed to the remote end, locally updated refs
 will be force updated on the remote end, and deleted refs
 will be removed from the remote end.  This is the default
 if the configuration option <code>remote.</code><em>&lt;remote&gt;</em><code>.mirror</code> is
 set.</p>
 </dd>
 <dt class="hdlist1">-n</dt>
 <dt class="hdlist1">--dry-run</dt>
 <dd>
 <p>Do everything except actually send the updates.</p>
 </dd>
 <dt class="hdlist1">--porcelain</dt>
 <dd>
 <p>Produce machine-readable output.  The output status line for each ref
 will be tab-separated and sent to stdout instead of stderr.  The full
 symbolic names of the refs will be given.</p>
 </dd>
 <dt class="hdlist1">-d</dt>
 <dt class="hdlist1">--delete</dt>
 <dd>
 <p>All listed refs are deleted from the remote repository. This is
 the same as prefixing all refs with a colon.</p>
 </dd>
 <dt class="hdlist1">--tags</dt>
 <dd>
 <p>All refs under <code>refs/tags</code> are pushed, in
 addition to refspecs explicitly listed on the command
 line.</p>
 </dd>
 <dt class="hdlist1">--follow-tags</dt>
 <dd>
 <p>Push all the refs that would be pushed without this option,
 and also push annotated tags in <code>refs/tags</code> that are missing
 from the remote but are pointing at commit-ish that are
 reachable from the refs being pushed.  This can also be specified
 with configuration variable <code>push.followTags</code>.  For more
 information, see <code>push.followTags</code> in <a href="git-config.html">git-config(1)</a>.</p>
 </dd>
 <dt class="hdlist1">--[no-]signed</dt>
 <dt class="hdlist1">--signed=(true|false|if-asked)</dt>
 <dd>
 <p>GPG-sign the push request to update refs on the receiving
 side, to allow it to be checked by the hooks and/or be
 logged.  If <code>false</code> or <code>--no-signed</code>, no signing will be
 attempted.  If <code>true</code> or <code>--signed</code>, the push will fail if the
 server does not support signed pushes.  If set to <code>if-asked</code>,
 sign if and only if the server supports signed pushes.  The push
 will also fail if the actual call to <code>gpg</code> <code>--sign</code> fails.  See
 <a href="git-receive-pack.html">git-receive-pack(1)</a> for the details on the receiving end.</p>
 </dd>
 <dt class="hdlist1">--[no-]atomic</dt>
 <dd>
 <p>Use an atomic transaction on the remote side if available.
 Either all refs are updated, or on error, no refs are updated.
 If the server does not support atomic pushes the push will fail.</p>
 </dd>
 <dt class="hdlist1">-o &lt;option&gt;</dt>
 <dt class="hdlist1">--push-option=&lt;option&gt;</dt>
 <dd>
 <p>Transmit the given string to the server, which passes them to
 the pre-receive as well as the post-receive hook. The given string
 must not contain a NUL or LF character.
 When multiple <code>--push-option=</code><em>&lt;option&gt;</em> are given, they are
 all sent to the other side in the order listed on the
 command line.
 When no <code>--push-option=</code><em>&lt;option&gt;</em> is given from the command
 line, the values of configuration variable <code>push.pushOption</code>
 are used instead.</p>
 </dd>
 <dt class="hdlist1">--receive-pack=&lt;git-receive-pack&gt;</dt>
 <dt class="hdlist1">--exec=&lt;git-receive-pack&gt;</dt>
 <dd>
 <p>Path to the <em>git-receive-pack</em> program on the remote
 end.  Sometimes useful when pushing to a remote
 repository over ssh, and you do not have the program in
 a directory on the default $PATH.</p>
 </dd>
 <dt class="hdlist1">--[no-]force-with-lease</dt>
 <dt class="hdlist1">--force-with-lease=&lt;refname&gt;</dt>
 <dt class="hdlist1">--force-with-lease=&lt;refname&gt;:&lt;expect&gt;</dt>
 <dd>
 <p>Usually, "git push" refuses to update a remote ref that is
 not an ancestor of the local ref used to overwrite it.</p>
 <div class="paragraph">
 <p>This option overrides this restriction if the current value of the
 remote ref is the expected value.  "git push" fails otherwise.</p>
 </div>
 <div class="paragraph">
 <p>Imagine that you have to rebase what you have already published.
 You will have to bypass the "must fast-forward" rule in order to
 replace the history you originally published with the rebased history.
 If somebody else built on top of your original history while you are
 rebasing, the tip of the branch at the remote may advance with their
 commit, and blindly pushing with <code>--force</code> will lose their work.</p>
 </div>
 <div class="paragraph">
 <p>This option allows you to say that you expect the history you are
 updating is what you rebased and want to replace. If the remote ref
 still points at the commit you specified, you can be sure that no
 other people did anything to the ref. It is like taking a "lease" on
 the ref without explicitly locking it, and the remote ref is updated
 only if the "lease" is still valid.</p>
 </div>
 <div class="paragraph">
 <p><code>--force-with-lease</code> alone, without specifying the details, will protect
 all remote refs that are going to be updated by requiring their
 current value to be the same as the remote-tracking branch we have
 for them.</p>
 </div>
 <div class="paragraph">
 <p><code>--force-with-lease=</code><em>&lt;refname&gt;</em>, without specifying the expected value, will
 protect the named ref (alone), if it is going to be updated, by
 requiring its current value to be the same as the remote-tracking
 branch we have for it.</p>
 </div>
 <div class="paragraph">
 <p><code>--force-with-lease=</code><em>&lt;refname&gt;</em><code>:</code><em>&lt;expect&gt;</em> will protect the named ref (alone),
 if it is going to be updated, by requiring its current value to be
 the same as the specified value <em>&lt;expect&gt;</em> (which is allowed to be
 different from the remote-tracking branch we have for the refname,
 or we do not even have to have such a remote-tracking branch when
 this form is used).  If <em>&lt;expect&gt;</em> is the empty string, then the named ref
 must not already exist.</p>
 </div>
 <div class="paragraph">
 <p>Note that all forms other than <code>--force-with-lease=</code><em>&lt;refname&gt;</em><code>:</code><em>&lt;expect&gt;</em>
 that specifies the expected current value of the ref explicitly are
 still experimental and their semantics may change as we gain experience
 with this feature.</p>
 </div>
 <div class="paragraph">
 <p>"--no-force-with-lease" will cancel all the previous --force-with-lease on the
 command line.</p>
 </div>
 <div class="paragraph">
 <p>A general note on safety: supplying this option without an expected
 value, i.e. as <code>--force-with-lease</code> or <code>--force-with-lease=</code><em>&lt;refname&gt;</em>
 interacts very badly with anything that implicitly runs <code>git</code> <code>fetch</code> on
 the remote to be pushed to in the background, e.g. <code>git</code> <code>fetch</code> <code>origin</code>
 on your repository in a cronjob.</p>
 </div>
 <div class="paragraph">
 <p>The protection it offers over <code>--force</code> is ensuring that subsequent
 changes your work wasn&#8217;t based on aren&#8217;t clobbered, but this is
 trivially defeated if some background process is updating refs in the
 background. We don&#8217;t have anything except the remote tracking info to
 go by as a heuristic for refs you&#8217;re expected to have seen &amp; are
 willing to clobber.</p>
 </div>
 <div class="paragraph">
 <p>If your editor or some other system is running <code>git</code> <code>fetch</code> in the
 background for you a way to mitigate this is to simply set up another
 remote:</p>
 </div>
 <div class="literalblock">
 <div class="content">
 <pre>git remote add origin-push $(git config remote.origin.url)
 git fetch origin-push</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>Now when the background process runs <code>git</code> <code>fetch</code> <code>origin</code> the references
 on <code>origin-push</code> won&#8217;t be updated, and thus commands like:</p>
 </div>
 <div class="literalblock">
 <div class="content">
 <pre>git push --force-with-lease origin-push</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>Will fail unless you manually run <code>git</code> <code>fetch</code> <code>origin-push</code>. This method
 is of course entirely defeated by something that runs <code>git</code> <code>fetch</code>
 <code>--all</code>, in that case you&#8217;d need to either disable it or do something
 more tedious like:</p>
 </div>
 <div class="literalblock">
 <div class="content">
 <pre>git fetch              # update 'master' from remote
 git tag base master    # mark our base point
 git rebase -i master   # rewrite some commits
 git push --force-with-lease=master:base master:master</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>I.e. create a <code>base</code> tag for versions of the upstream code that you&#8217;ve
 seen and are willing to overwrite, then rewrite history, and finally
 force push changes to <code>master</code> if the remote version is still at
 <code>base</code>, regardless of what your local <code>remotes/origin/master</code> has been
 updated to in the background.</p>
 </div>
 <div class="paragraph">
 <p>Alternatively, specifying <code>--force-if-includes</code> as an ancillary option
 along with <code>--force-with-lease</code>[<code>=</code><em>&lt;refname&gt;</em>] (i.e., without saying what
 exact commit the ref on the remote side must be pointing at, or which
 refs on the remote side are being protected) at the time of "push" will
 verify if updates from the remote-tracking refs that may have been
 implicitly updated in the background are integrated locally before
 allowing a forced update.</p>
 </div>
 </dd>
 <dt class="hdlist1">-f</dt>
 <dt class="hdlist1">--force</dt>
 <dd>
 <p>Usually, the command refuses to update a remote ref that is
 not an ancestor of the local ref used to overwrite it.
 Also, when <code>--force-with-lease</code> option is used, the command refuses
 to update a remote ref whose current value does not match
 what is expected.</p>
 <div class="paragraph">
 <p>This flag disables these checks, and can cause the remote repository
 to lose commits; use it with care.</p>
 </div>
 <div class="paragraph">
 <p>Note that <code>--force</code> applies to all the refs that are pushed, hence
 using it with <code>push.default</code> set to <code>matching</code> or with multiple push
 destinations configured with <code>remote.*.push</code> may overwrite refs
 other than the current branch (including local refs that are
 strictly behind their remote counterpart).  To force a push to only
 one branch, use a <code>+</code> in front of the refspec to push (e.g <code>git</code> <code>push</code>
 <code>origin</code> <code>+master</code> to force a push to the <code>master</code> branch). See the
 <em>&lt;refspec&gt;</em>... section above for details.</p>
 </div>
 </dd>
 <dt class="hdlist1">--[no-]force-if-includes</dt>
 <dd>
 <p>Force an update only if the tip of the remote-tracking ref
 has been integrated locally.</p>
 <div class="paragraph">
 <p>This option enables a check that verifies if the tip of the
 remote-tracking ref is reachable from one of the "reflog" entries of
 the local branch based in it for a rewrite. The check ensures that any
 updates from the remote have been incorporated locally by rejecting the
 forced update if that is not the case.</p>
 </div>
 <div class="paragraph">
 <p>If the option is passed without specifying <code>--force-with-lease</code>, or
 specified along with <code>--force-with-lease=</code><em>&lt;refname&gt;</em><code>:</code><em>&lt;expect&gt;</em>, it is
 a "no-op".</p>
 </div>
 <div class="paragraph">
 <p>Specifying <code>--no-force-if-includes</code> disables this behavior.</p>
 </div>
 </dd>
 <dt class="hdlist1">--repo=&lt;repository&gt;</dt>
 <dd>
 <p>This option is equivalent to the &lt;repository&gt; argument. If both
 are specified, the command-line argument takes precedence.</p>
 </dd>
 <dt class="hdlist1">-u</dt>
 <dt class="hdlist1">--set-upstream</dt>
 <dd>
 <p>For every branch that is up to date or successfully pushed, add
 upstream (tracking) reference, used by argument-less
 <a href="git-pull.html">git-pull(1)</a> and other commands. For more information,
 see <code>branch.</code><em>&lt;name&gt;</em><code>.merge</code> in <a href="git-config.html">git-config(1)</a>.</p>
 </dd>
 <dt class="hdlist1">--[no-]thin</dt>
 <dd>
 <p>These options are passed to <a href="git-send-pack.html">git-send-pack(1)</a>. A thin transfer
 significantly reduces the amount of sent data when the sender and
 receiver share many of the same objects in common. The default is
 <code>--thin</code>.</p>
 </dd>
 <dt class="hdlist1">-q</dt>
 <dt class="hdlist1">--quiet</dt>
 <dd>
 <p>Suppress all output, including the listing of updated refs,
 unless an error occurs. Progress is not reported to the standard
 error stream.</p>
 </dd>
 <dt class="hdlist1">-v</dt>
 <dt class="hdlist1">--verbose</dt>
 <dd>
 <p>Run verbosely.</p>
 </dd>
 <dt class="hdlist1">--progress</dt>
 <dd>
 <p>Progress status is reported on the standard error stream
 by default when it is attached to a terminal, unless -q
 is specified. This flag forces progress status even if the
 standard error stream is not directed to a terminal.</p>
 </dd>
 <dt class="hdlist1">--no-recurse-submodules</dt>
 <dt class="hdlist1">--recurse-submodules=check|on-demand|only|no</dt>
 <dd>
 <p>May be used to make sure all submodule commits used by the
 revisions to be pushed are available on a remote-tracking branch.
 If <em>check</em> is used Git will verify that all submodule commits that
 changed in the revisions to be pushed are available on at least one
 remote of the submodule. If any commits are missing the push will
 be aborted and exit with non-zero status. If <em>on-demand</em> is used
 all submodules that changed in the revisions to be pushed will be
 pushed. If on-demand was not able to push all necessary revisions it will
 also be aborted and exit with non-zero status. If <em>only</em> is used all
 submodules will be pushed while the superproject is left
 unpushed. A value of <em>no</em> or using <code>--no-recurse-submodules</code> can be used
 to override the push.recurseSubmodules configuration variable when no
 submodule recursion is required.</p>
 <div class="paragraph">
 <p>When using <em>on-demand</em> or <em>only</em>, if a submodule has a
 "push.recurseSubmodules={on-demand,only}" or "submodule.recurse" configuration,
 further recursion will occur. In this case, "only" is treated as "on-demand".</p>
 </div>
 </dd>
 <dt class="hdlist1">--[no-]verify</dt>
 <dd>
 <p>Toggle the pre-push hook (see <a href="githooks.html">githooks(5)</a>).  The
 default is --verify, giving the hook a chance to prevent the
 push.  With --no-verify, the hook is bypassed completely.</p>
 </dd>
 <dt class="hdlist1">-4</dt>
 <dt class="hdlist1">--ipv4</dt>
 <dd>
 <p>Use IPv4 addresses only, ignoring IPv6 addresses.</p>
 </dd>
 <dt class="hdlist1">-6</dt>
 <dt class="hdlist1">--ipv6</dt>
 <dd>
 <p>Use IPv6 addresses only, ignoring IPv4 addresses.</p>
 </dd>
 </dl>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_git_urls">GIT URLS<a id="URLS"></a></h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>In general, URLs contain information about the transport protocol, the
 address of the remote server, and the path to the repository.
 Depending on the transport protocol, some of this information may be
 absent.</p>
 </div>
 <div class="paragraph">
 <p>Git supports ssh, git, http, and https protocols (in addition, ftp
 and ftps can be used for fetching, but this is inefficient and
 deprecated; do not use them).</p>
 </div>
 <div class="paragraph">
 <p>The native transport (i.e. <code>git://</code> URL) does no authentication and
 should be used with caution on unsecured networks.</p>
 </div>
 <div class="paragraph">
 <p>The following syntaxes may be used with them:</p>
 </div>
 <div class="ulist">
 <ul>
 <li>
 <p><code>ssh://</code>[<em>&lt;user&gt;</em><code>@</code>]<em>&lt;host&gt;</em>[<code>:</code><em>&lt;port&gt;</em>]<code>/</code><em>&lt;path-to-git-repo&gt;</em></p>
 </li>
 <li>
 <p><code>git://</code><em>&lt;host&gt;</em>[<code>:</code><em>&lt;port&gt;</em>]<code>/</code><em>&lt;path-to-git-repo&gt;</em></p>
 </li>
 <li>
 <p><code>http</code>[<code>s</code>]<code>://</code><em>&lt;host&gt;</em>[<code>:</code><em>&lt;port&gt;</em>]<code>/</code><em>&lt;path-to-git-repo&gt;</em></p>
 </li>
 <li>
 <p><code>ftp</code>[<code>s</code>]<code>://</code><em>&lt;host&gt;</em>[<code>:</code><em>&lt;port&gt;</em>]<code>/</code><em>&lt;path-to-git-repo&gt;</em></p>
 </li>
 </ul>
 </div>
 <div class="paragraph">
 <p>An alternative scp-like syntax may also be used with the ssh protocol:</p>
 </div>
 <div class="ulist">
 <ul>
 <li>
 <p>[<em>&lt;user&gt;</em><code>@</code>]<em>&lt;host&gt;</em><code>:/</code><em>&lt;path-to-git-repo&gt;</em></p>
 </li>
 </ul>
 </div>
 <div class="paragraph">
 <p>This syntax is only recognized if there are no slashes before the
 first colon. This helps differentiate a local path that contains a
 colon. For example the local path <code>foo:bar</code> could be specified as an
 absolute path or .<code>/foo:bar</code> to avoid being misinterpreted as an ssh
 url.</p>
 </div>
 <div class="paragraph">
 <p>The ssh and git protocols additionally support <code>~</code><em>&lt;username&gt;</em> expansion:</p>
 </div>
 <div class="ulist">
 <ul>
 <li>
 <p><code>ssh://</code>[<em>&lt;user&gt;</em><code>@</code>]<em>&lt;host&gt;</em>[<code>:</code><em>&lt;port&gt;</em>]<code>/~</code><em>&lt;user&gt;</em><code>/</code><em>&lt;path-to-git-repo&gt;</em></p>
 </li>
 <li>
 <p><code>git://</code><em>&lt;host&gt;</em>[<code>:</code><em>&lt;port&gt;</em>]<code>/~</code><em>&lt;user&gt;</em><code>/</code><em>&lt;path-to-git-repo&gt;</em></p>
 </li>
 <li>
 <p>[<em>&lt;user&gt;</em><code>@</code>]<em>&lt;host&gt;</em><code>:~</code><em>&lt;user&gt;</em><code>/</code><em>&lt;path-to-git-repo&gt;</em></p>
 </li>
 </ul>
 </div>
 <div class="paragraph">
 <p>For local repositories, also supported by Git natively, the following
 syntaxes may be used:</p>
 </div>
 <div class="ulist">
 <ul>
 <li>
 <p><code>/path/to/repo.git/</code></p>
 </li>
 <li>
 <p><code>file:///path/to/repo.git/</code></p>
 </li>
 </ul>
 </div>
 <div class="paragraph">
 <p>These two syntaxes are mostly equivalent, except when cloning, when
 the former implies <code>--local</code> option. See <a href="git-clone.html">git-clone(1)</a> for
 details.</p>
 </div>
 <div class="paragraph">
 <p><code>git</code> <code>clone</code>, <code>git</code> <code>fetch</code> and <code>git</code> <code>pull</code>, but not <code>git</code> <code>push</code>, will also
 accept a suitable bundle file. See <a href="git-bundle.html">git-bundle(1)</a>.</p>
 </div>
 <div class="paragraph">
 <p>When Git doesn&#8217;t know how to handle a certain transport protocol, it
 attempts to use the <code>remote-</code><em>&lt;transport&gt;</em> remote helper, if one
 exists. To explicitly request a remote helper, the following syntax
 may be used:</p>
 </div>
 <div class="ulist">
 <ul>
 <li>
 <p><em>&lt;transport&gt;</em><code>::</code><em>&lt;address&gt;</em></p>
 </li>
 </ul>
 </div>
 <div class="paragraph">
 <p>where <em>&lt;address&gt;</em> may be a path, a server and path, or an arbitrary
 URL-like string recognized by the specific remote helper being
 invoked. See <a href="gitremote-helpers.html">gitremote-helpers(7)</a> for details.</p>
 </div>
 <div class="paragraph">
 <p>If there are a large number of similarly-named remote repositories and
 you want to use a different format for them (such that the URLs you
 use will be rewritten into URLs that work), you can create a
 configuration section of the form:</p>
 </div>
 <div class="verseblock">
 <pre class="content">        [url "<em>&lt;actual-url-base&gt;</em>"]
                 insteadOf = <em>&lt;other-url-base&gt;</em></pre>
 </div>
 <div class="paragraph">
 <p>For example, with this:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>        [url "git://git.host.xz/"]
                 insteadOf = host.xz:/path/to/
                 insteadOf = work:</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>a URL like "work:repo.git" or like "host.xz:/path/to/repo.git" will be
 rewritten in any context that takes a URL to be "git://git.host.xz/repo.git".</p>
 </div>
 <div class="paragraph">
 <p>If you want to rewrite URLs for push only, you can create a
 configuration section of the form:</p>
 </div>
 <div class="verseblock">
 <pre class="content">        [url "<em>&lt;actual-url-base&gt;</em>"]
                 pushInsteadOf = <em>&lt;other-url-base&gt;</em></pre>
 </div>
 <div class="paragraph">
 <p>For example, with this:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>        [url "ssh://example.org/"]
                 pushInsteadOf = git://example.org/</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>a URL like "git://example.org/path/to/repo.git" will be rewritten to
 "ssh://example.org/path/to/repo.git" for pushes, but pulls will still
 use the original URL.</p>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_remotes">REMOTES<a id="REMOTES"></a></h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>The name of one of the following can be used instead
 of a URL as <em>&lt;repository&gt;</em> argument:</p>
 </div>
 <div class="ulist">
 <ul>
 <li>
 <p>a remote in the Git configuration file: <code>$GIT_DIR/config</code>,</p>
 </li>
 <li>
 <p>a file in the <code>$GIT_DIR/remotes</code> directory, or</p>
 </li>
 <li>
 <p>a file in the <code>$GIT_DIR/branches</code> directory.</p>
 </li>
 </ul>
 </div>
 <div class="paragraph">
 <p>All of these also allow you to omit the refspec from the command line
 because they each contain a refspec which git will use by default.</p>
 </div>
 <div class="sect2">
 <h3 id="_named_remote_in_configuration_file">Named remote in configuration file</h3>
 <div class="paragraph">
 <p>You can choose to provide the name of a remote which you had previously
 configured using <a href="git-remote.html">git-remote(1)</a>, <a href="git-config.html">git-config(1)</a>
 or even by a manual edit to the <code>$GIT_DIR/config</code> file.  The URL of
 this remote will be used to access the repository.  The refspec
 of this remote will be used by default when you do
 not provide a refspec on the command line.  The entry in the
 config file would appear like this:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>        [remote "&lt;name&gt;"]
                 url = &lt;URL&gt;
                 pushurl = &lt;pushurl&gt;
                 push = &lt;refspec&gt;
                 fetch = &lt;refspec&gt;</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>The <em>&lt;pushurl&gt;</em> is used for pushes only. It is optional and defaults
 to <em>&lt;URL&gt;</em>. Pushing to a remote affects all defined pushurls or all
 defined urls if no pushurls are defined. Fetch, however, will only
 fetch from the first defined url if multiple urls are defined.</p>
 </div>
 </div>
 <div class="sect2">
 <h3 id="_named_file_in_git_dirremotes">Named file in <code>$GIT_DIR/remotes</code></h3>
 <div class="paragraph">
 <p>You can choose to provide the name of a
 file in <code>$GIT_DIR/remotes</code>.  The URL
 in this file will be used to access the repository.  The refspec
 in this file will be used as default when you do not
 provide a refspec on the command line.  This file should have the
 following format:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>        URL: one of the above URL formats
         Push: &lt;refspec&gt;
         Pull: &lt;refspec&gt;</pre>
 </div>
 </div>
 <div class="paragraph">
 <p><code>Push:</code> lines are used by <em>git push</em> and
 <code>Pull:</code> lines are used by <em>git pull</em> and <em>git fetch</em>.
 Multiple <code>Push:</code> and <code>Pull:</code> lines may
 be specified for additional branch mappings.</p>
 </div>
 </div>
 <div class="sect2">
 <h3 id="_named_file_in_git_dirbranches">Named file in <code>$GIT_DIR/branches</code></h3>
 <div class="paragraph">
 <p>You can choose to provide the name of a
 file in <code>$GIT_DIR/branches</code>.
 The URL in this file will be used to access the repository.
 This file should have the following format:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>        &lt;URL&gt;#&lt;head&gt;</pre>
 </div>
 </div>
 <div class="paragraph">
 <p><em>&lt;URL&gt;</em> is required; #<em>&lt;head&gt;</em> is optional.</p>
 </div>
 <div class="paragraph">
 <p>Depending on the operation, git will use one of the following
 refspecs, if you don&#8217;t provide one on the command line.
 <em>&lt;branch&gt;</em> is the name of this file in <code>$GIT_DIR/branches</code> and
 <em>&lt;head&gt;</em> defaults to <code>master</code>.</p>
 </div>
 <div class="paragraph">
 <p>git fetch uses:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>        refs/heads/&lt;head&gt;:refs/heads/&lt;branch&gt;</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>git push uses:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>        HEAD:refs/heads/&lt;head&gt;</pre>
 </div>
 </div>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_output">OUTPUT</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>The output of "git push" depends on the transport method used; this
 section describes the output when pushing over the Git protocol (either
 locally or via ssh).</p>
 </div>
 <div class="paragraph">
 <p>The status of the push is output in tabular form, with each line
 representing the status of a single ref. Each line is of the form:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre> &lt;flag&gt; &lt;summary&gt; &lt;from&gt; -&gt; &lt;to&gt; (&lt;reason&gt;)</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>If --porcelain is used, then each line of the output is of the form:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre> &lt;flag&gt; \t &lt;from&gt;:&lt;to&gt; \t &lt;summary&gt; (&lt;reason&gt;)</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>The status of up-to-date refs is shown only if --porcelain or --verbose
 option is used.</p>
 </div>
 <div class="dlist">
 <dl>
 <dt class="hdlist1">flag</dt>
 <dd>
 <p>A single character indicating the status of the ref:</p>
 <div class="dlist">
 <dl>
 <dt class="hdlist1">(space)</dt>
 <dd>
 <p>for a successfully pushed fast-forward;</p>
 </dd>
 <dt class="hdlist1"><code>+</code></dt>
 <dd>
 <p>for a successful forced update;</p>
 </dd>
 <dt class="hdlist1"><code>-</code></dt>
 <dd>
 <p>for a successfully deleted ref;</p>
 </dd>
 <dt class="hdlist1"><code>*</code></dt>
 <dd>
 <p>for a successfully pushed new ref;</p>
 </dd>
 <dt class="hdlist1">!</dt>
 <dd>
 <p>for a ref that was rejected or failed to push; and</p>
 </dd>
 <dt class="hdlist1"><code>=</code></dt>
 <dd>
 <p>for a ref that was up to date and did not need pushing.</p>
 </dd>
 </dl>
 </div>
 </dd>
 <dt class="hdlist1">summary</dt>
 <dd>
 <p>For a successfully pushed ref, the summary shows the old and new
 values of the ref in a form suitable for using as an argument to
 <code>git</code> <code>log</code> (this is <em>&lt;old&gt;</em><code>..</code><em>&lt;new&gt;</em> in most cases, and
 <em>&lt;old&gt;</em><code>...</code><em>&lt;new&gt;</em> for forced non-fast-forward updates).</p>
 <div class="paragraph">
 <p>For a failed update, more details are given:</p>
 </div>
 <div class="openblock">
 <div class="content">
 <div class="dlist">
 <dl>
 <dt class="hdlist1">rejected</dt>
 <dd>
 <p>Git did not try to send the ref at all, typically because it
 is not a fast-forward and you did not force the update.</p>
 </dd>
 <dt class="hdlist1">remote rejected</dt>
 <dd>
 <p>The remote end refused the update.  Usually caused by a hook
 on the remote side, or because the remote repository has one
 of the following safety options in effect:
 <code>receive.denyCurrentBranch</code> (for pushes to the checked out
 branch), <code>receive.denyNonFastForwards</code> (for forced
 non-fast-forward updates), <code>receive.denyDeletes</code> or
 <code>receive.denyDeleteCurrent</code>.  See <a href="git-config.html">git-config(1)</a>.</p>
 </dd>
 <dt class="hdlist1">remote failure</dt>
 <dd>
 <p>The remote end did not report the successful update of the ref,
 perhaps because of a temporary error on the remote side, a
 break in the network connection, or other transient error.</p>
 </dd>
 </dl>
 </div>
 </div>
 </div>
 </dd>
 <dt class="hdlist1">from</dt>
 <dd>
 <p>The name of the local ref being pushed, minus its
 <code>refs/</code><em>&lt;type&gt;</em><code>/</code> prefix. In the case of deletion, the
 name of the local ref is omitted.</p>
 </dd>
 <dt class="hdlist1">to</dt>
 <dd>
 <p>The name of the remote ref being updated, minus its
 <code>refs/</code><em>&lt;type&gt;</em><code>/</code> prefix.</p>
 </dd>
 <dt class="hdlist1">reason</dt>
 <dd>
 <p>A human-readable explanation. In the case of successfully pushed
 refs, no explanation is needed. For a failed ref, the reason for
 failure is described.</p>
 </dd>
 </dl>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_note_about_fast_forwards">NOTE ABOUT FAST-FORWARDS</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>When an update changes a branch (or more in general, a ref) that used to
 point at commit A to point at another commit B, it is called a
 fast-forward update if and only if B is a descendant of A.</p>
 </div>
 <div class="paragraph">
 <p>In a fast-forward update from A to B, the set of commits that the original
 commit A built on top of is a subset of the commits the new commit B
 builds on top of.  Hence, it does not lose any history.</p>
 </div>
 <div class="paragraph">
 <p>In contrast, a non-fast-forward update will lose history.  For example,
 suppose you and somebody else started at the same commit X, and you built
 a history leading to commit B while the other person built a history
 leading to commit A.  The history looks like this:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>      B
      /
  ---X---A</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>Further suppose that the other person already pushed changes leading to A
 back to the original repository from which you two obtained the original
 commit X.</p>
 </div>
 <div class="paragraph">
 <p>The push done by the other person updated the branch that used to point at
 commit X to point at commit A.  It is a fast-forward.</p>
 </div>
 <div class="paragraph">
 <p>But if you try to push, you will attempt to update the branch (that
 now points at A) with commit B.  This does <em>not</em> fast-forward.  If you did
 so, the changes introduced by commit A will be lost, because everybody
 will now start building on top of B.</p>
 </div>
 <div class="paragraph">
 <p>The command by default does not allow an update that is not a fast-forward
 to prevent such loss of history.</p>
 </div>
 <div class="paragraph">
 <p>If you do not want to lose your work (history from X to B) or the work by
 the other person (history from X to A), you would need to first fetch the
 history from the repository, create a history that contains changes done
 by both parties, and push the result back.</p>
 </div>
 <div class="paragraph">
 <p>You can perform "git pull", resolve potential conflicts, and "git push"
 the result.  A "git pull" will create a merge commit C between commits A
 and B.</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>      B---C
      /   /
  ---X---A</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>Updating A with the resulting merge commit will fast-forward and your
 push will be accepted.</p>
 </div>
 <div class="paragraph">
 <p>Alternatively, you can rebase your change between X and B on top of A,
 with "git pull --rebase", and push the result back.  The rebase will
 create a new commit D that builds the change between X and B on top of
 A.</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>      B   D
      /   /
  ---X---A</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>Again, updating A with this commit will fast-forward and your push will be
 accepted.</p>
 </div>
 <div class="paragraph">
 <p>There is another common situation where you may encounter non-fast-forward
 rejection when you try to push, and it is possible even when you are
 pushing into a repository nobody else pushes into. After you push commit
 A yourself (in the first picture in this section), replace it with "git
 commit --amend" to produce commit B, and you try to push it out, because
 forgot that you have pushed A out already. In such a case, and only if
 you are certain that nobody in the meantime fetched your earlier commit A
 (and started building on top of it), you can run "git push --force" to
 overwrite it. In other words, "git push --force" is a method reserved for
 a case where you do mean to lose history.</p>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_examples">EXAMPLES</h2>
 <div class="sectionbody">
 <div class="dlist">
 <dl>
 <dt class="hdlist1"><code>git</code> <code>push</code></dt>
 <dd>
 <p>Works like <code>git</code> <code>push</code> <em>&lt;remote&gt;</em>, where &lt;remote&gt; is the
 current branch&#8217;s remote (or <code>origin</code>, if no remote is
 configured for the current branch).</p>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>origin</code></dt>
 <dd>
 <p>Without additional configuration, pushes the current branch to
 the configured upstream (<code>branch.</code><em>&lt;name&gt;</em><code>.merge</code> configuration
 variable) if it has the same name as the current branch, and
 errors out without pushing otherwise.</p>
 <div class="paragraph">
 <p>The default behavior of this command when no &lt;refspec&gt; is given can be
 configured by setting the <code>push</code> option of the remote, or the <code>push.default</code>
 configuration variable.</p>
 </div>
 <div class="paragraph">
 <p>For example, to default to pushing only the current branch to <code>origin</code>
 use <code>git</code> <code>config</code> <code>remote.origin.push</code> <code>HEAD</code>.  Any valid &lt;refspec&gt; (like
 the ones in the examples below) can be configured as the default for
 <code>git</code> <code>push</code> <code>origin</code>.</p>
 </div>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>origin</code> <code>:</code></dt>
 <dd>
 <p>Push "matching" branches to <code>origin</code>. See
 &lt;refspec&gt; in the <a href="#OPTIONS">OPTIONS</a> section above for a
 description of "matching" branches.</p>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>origin</code> <code>master</code></dt>
 <dd>
 <p>Find a ref that matches <code>master</code> in the source repository
 (most likely, it would find <code>refs/heads/master</code>), and update
 the same ref (e.g. <code>refs/heads/master</code>) in <code>origin</code> repository
 with it.  If <code>master</code> did not exist remotely, it would be
 created.</p>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>origin</code> <code>HEAD</code></dt>
 <dd>
 <p>A handy way to push the current branch to the same name on the
 remote.</p>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>mothership</code> <code>master:satellite/master</code> <code>dev:satellite/dev</code></dt>
 <dd>
 <p>Use the source ref that matches <code>master</code> (e.g. <code>refs/heads/master</code>)
 to update the ref that matches <code>satellite/master</code> (most probably
 <code>refs/remotes/satellite/master</code>) in the <code>mothership</code> repository;
 do the same for <code>dev</code> and <code>satellite/dev</code>.</p>
 <div class="paragraph">
 <p>See the section describing <em>&lt;refspec&gt;</em>... above for a discussion of
 the matching semantics.</p>
 </div>
 <div class="paragraph">
 <p>This is to emulate <code>git</code> <code>fetch</code> run on the <code>mothership</code> using <code>git</code>
 <code>push</code> that is run in the opposite direction in order to integrate
 the work done on <code>satellite</code>, and is often necessary when you can
 only make connection in one way (i.e. satellite can ssh into
 mothership but mothership cannot initiate connection to satellite
 because the latter is behind a firewall or does not run sshd).</p>
 </div>
 <div class="paragraph">
 <p>After running this <code>git</code> <code>push</code> on the <code>satellite</code> machine, you would
 ssh into the <code>mothership</code> and run <code>git</code> <code>merge</code> there to complete the
 emulation of <code>git</code> <code>pull</code> that were run on <code>mothership</code> to pull changes
 made on <code>satellite</code>.</p>
 </div>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>origin</code> <code>HEAD:master</code></dt>
 <dd>
 <p>Push the current branch to the remote ref matching <code>master</code> in the
 <code>origin</code> repository. This form is convenient to push the current
 branch without thinking about its local name.</p>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>origin</code> <code>master:refs/heads/experimental</code></dt>
 <dd>
 <p>Create the branch <code>experimental</code> in the <code>origin</code> repository
 by copying the current <code>master</code> branch.  This form is only
 needed to create a new branch or tag in the remote repository when
 the local name and the remote name are different; otherwise,
 the ref name on its own will work.</p>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>origin</code> <code>:experimental</code></dt>
 <dd>
 <p>Find a ref that matches <code>experimental</code> in the <code>origin</code> repository
 (e.g. <code>refs/heads/experimental</code>), and delete it.</p>
 </dd>
 <dt class="hdlist1"><code>git</code> <code>push</code> <code>origin</code> <code>+dev:master</code></dt>
 <dd>
 <p>Update the origin repository&#8217;s master branch with the dev branch,
 allowing non-fast-forward updates.  <strong>This can leave unreferenced
 commits dangling in the origin repository.</strong>  Consider the
 following situation, where a fast-forward is not possible:</p>
 <div class="listingblock">
 <div class="content">
 <pre>            o---o---o---A---B  origin/master
                      \
                       X---Y---Z  dev</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>The above command would change the origin repository to</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>                      A---B  (unnamed branch)
                      /
             o---o---o---X---Y---Z  master</pre>
 </div>
 </div>
 <div class="paragraph">
 <p>Commits A and B would no longer belong to a branch with a symbolic name,
 and so would be unreachable.  As such, these commits would be removed by
 a <code>git</code> <code>gc</code> command on the origin repository.</p>
 </div>
 </dd>
 </dl>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_security">SECURITY</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>The fetch and push protocols are not designed to prevent one side from
 stealing data from the other repository that was not intended to be
 shared. If you have private data that you need to protect from a malicious
 peer, your best option is to store it in another repository. This applies
 to both clients and servers. In particular, namespaces on a server are not
 effective for read access control; you should only grant read access to a
 namespace to clients that you would trust with read access to the entire
 repository.</p>
 </div>
 <div class="paragraph">
 <p>The known attack vectors are as follows:</p>
 </div>
 <div class="olist arabic">
 <ol class="arabic">
 <li>
 <p>The victim sends "have" lines advertising the IDs of objects it has that
 are not explicitly intended to be shared but can be used to optimize the
 transfer if the peer also has them. The attacker chooses an object ID X
 to steal and sends a ref to X, but isn&#8217;t required to send the content of
 X because the victim already has it. Now the victim believes that the
 attacker has X, and it sends the content of X back to the attacker
 later. (This attack is most straightforward for a client to perform on a
 server, by creating a ref to X in the namespace the client has access
 to and then fetching it. The most likely way for a server to perform it
 on a client is to "merge" X into a public branch and hope that the user
 does additional work on this branch and pushes it back to the server
 without noticing the merge.)</p>
 </li>
 <li>
 <p>As in #1, the attacker chooses an object ID X to steal. The victim sends
 an object Y that the attacker already has, and the attacker falsely
 claims to have X and not Y, so the victim sends Y as a delta against X.
 The delta reveals regions of X that are similar to Y to the attacker.</p>
 </li>
 </ol>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_configuration">CONFIGURATION</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>Everything below this line in this section is selectively included
 from the <a href="git-config.html">git-config(1)</a> documentation. The content is the same
 as what&#8217;s found there:</p>
 </div>
 <div class="dlist">
 <dl>
 <dt class="hdlist1">push.autoSetupRemote</dt>
 <dd>
 <p>If set to "true" assume <code>--set-upstream</code> on default push when no
 upstream tracking exists for the current branch; this option
 takes effect with push.default options <em>simple</em>, <em>upstream</em>,
 and <em>current</em>. It is useful if by default you want new branches
 to be pushed to the default remote (like the behavior of
 <em>push.default=current</em>) and you also want the upstream tracking
 to be set. Workflows most likely to benefit from this option are
 <em>simple</em> central workflows where all branches are expected to
 have the same name on the remote.</p>
 </dd>
 <dt class="hdlist1">push.default</dt>
 <dd>
 <p>Defines the action <code>git</code> <code>push</code> should take if no refspec is
 given (whether from the command-line, config, or elsewhere).
 Different values are well-suited for
 specific workflows; for instance, in a purely central workflow
 (i.e. the fetch source is equal to the push destination),
 <code>upstream</code> is probably what you want.  Possible values are:</p>
 <div class="openblock">
 <div class="content">
 <div class="ulist">
 <ul>
 <li>
 <p><code>nothing</code> - do not push anything (error out) unless a refspec is
 given. This is primarily meant for people who want to
 avoid mistakes by always being explicit.</p>
 </li>
 <li>
 <p><code>current</code> - push the current branch to update a branch with the same
 name on the receiving end.  Works in both central and non-central
 workflows.</p>
 </li>
 <li>
 <p><code>upstream</code> - push the current branch back to the branch whose
 changes are usually integrated into the current branch (which is
 called <code>@</code>{upstream}).  This mode only makes sense if you are
 pushing to the same repository you would normally pull from
 (i.e. central workflow).</p>
 </li>
 <li>
 <p><code>tracking</code> - This is a deprecated synonym for <code>upstream</code>.</p>
 </li>
 <li>
 <p><code>simple</code> - push the current branch with the same name on the remote.</p>
 <div class="paragraph">
 <p>If you are working on a centralized workflow (pushing to the same repository you
 pull from, which is typically <code>origin</code>), then you need to configure an upstream
 branch with the same name.</p>
 </div>
 <div class="paragraph">
 <p>This mode is the default since Git 2.0, and is the safest option suited for
 beginners.</p>
 </div>
 </li>
 <li>
 <p><code>matching</code> - push all branches having the same name on both ends.
 This makes the repository you are pushing to remember the set of
 branches that will be pushed out (e.g. if you always push <em>maint</em>
 and <em>master</em> there and no other branches, the repository you push
 to will have these two branches, and your local <em>maint</em> and
 <em>master</em> will be pushed there).</p>
 <div class="paragraph">
 <p>To use this mode effectively, you have to make sure <em>all</em> the
 branches you would push out are ready to be pushed out before
 running <em>git push</em>, as the whole point of this mode is to allow you
 to push all of the branches in one go.  If you usually finish work
 on only one branch and push out the result, while other branches are
 unfinished, this mode is not for you.  Also this mode is not
 suitable for pushing into a shared central repository, as other
 people may add new branches there, or update the tip of existing
 branches outside your control.</p>
 </div>
 <div class="paragraph">
 <p>This used to be the default, but not since Git 2.0 (<code>simple</code> is the
 new default).</p>
 </div>
 </li>
 </ul>
 </div>
 </div>
 </div>
 </dd>
 <dt class="hdlist1">push.followTags</dt>
 <dd>
 <p>If set to true, enable <code>--follow-tags</code> option by default.  You
 may override this configuration at time of push by specifying
 <code>--no-follow-tags</code>.</p>
 </dd>
 <dt class="hdlist1">push.gpgSign</dt>
 <dd>
 <p>May be set to a boolean value, or the string <em>if-asked</em>. A true
 value causes all pushes to be GPG signed, as if <code>--signed</code> is
 passed to <a href="git-push.html">git-push(1)</a>. The string <em>if-asked</em> causes
 pushes to be signed if the server supports it, as if
 <code>--signed=if-asked</code> is passed to <em>git push</em>. A false value may
 override a value from a lower-priority config file. An explicit
 command-line flag always overrides this config option.</p>
 </dd>
 <dt class="hdlist1">push.pushOption</dt>
 <dd>
 <p>When no <code>--push-option=</code><em>&lt;option&gt;</em> argument is given from the
 command line, <code>git</code> <code>push</code> behaves as if each &lt;value&gt; of
 this variable is given as <code>--push-option=</code><em>&lt;value&gt;</em>.</p>
 <div class="paragraph">
 <p>This is a multi-valued variable, and an empty value can be used in a
 higher priority configuration file (e.g. .<code>git/config</code> in a
 repository) to clear the values inherited from a lower priority
 configuration files (e.g. <code>$HOME/.gitconfig</code>).</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>Example:

 /etc/gitconfig
   push.pushoption = a
   push.pushoption = b

 ~/.gitconfig
   push.pushoption = c

 repo/.git/config
   push.pushoption =
   push.pushoption = b

 This will result in only b (a and c are cleared).</pre>
 </div>
 </div>
 </dd>
 <dt class="hdlist1">push.recurseSubmodules</dt>
 <dd>
 <p>May be "check", "on-demand", "only", or "no", with the same behavior
 as that of "push --recurse-submodules".
 If not set, <em>no</em> is used by default, unless <em>submodule.recurse</em> is
 set (in which case a <em>true</em> value means <em>on-demand</em>).</p>
 </dd>
 <dt class="hdlist1">push.useForceIfIncludes</dt>
 <dd>
 <p>If set to "true", it is equivalent to specifying
 <code>--force-if-includes</code> as an option to <a href="git-push.html">git-push(1)</a>
 in the command line. Adding <code>--no-force-if-includes</code> at the
 time of push overrides this configuration setting.</p>
 </dd>
 <dt class="hdlist1">push.negotiate</dt>
 <dd>
 <p>If set to "true", attempt to reduce the size of the packfile
 sent by rounds of negotiation in which the client and the
 server attempt to find commits in common. If "false", Git will
 rely solely on the server&#8217;s ref advertisement to find commits
 in common.</p>
 </dd>
 <dt class="hdlist1">push.useBitmaps</dt>
 <dd>
 <p>If set to "false", disable use of bitmaps for "git push" even if
 <code>pack.useBitmaps</code> is "true", without preventing other git operations
 from using bitmaps. Default is true.</p>
 </dd>
 </dl>
 </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>
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