Add a family of git-commands to assist with the management of multiple CLs/branches.
git-rebase-update - ensure all branches are up to date
git-new-branch - create branches
git-rename-branch - rename a branch while preserving parentage relationships
git-reparent-branch - change the parent of a branch, including rebasing it correctly onto that new parent.
git-squash-branch - collapse a branch into a single commit
git-upstream-diff - show the diff between the current branch and it's upstream branch
git-mark-merge-base - explicitly set what you want the above tools to consider the merge-base for the current branch.
R=agable@chromium.org, hinoka@chromium.org, stip@chromium.org, szager@chromium.org
BUG=261738
Review URL: https://codereview.chromium.org/184253003
git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@259520 0039d316-1c4b-4281-b951-d872f2087c98
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+<body class="manpage">
+<div id="header">
+<h1>
+git-upstream-diff(1) Manual Page
+</h1>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>git-upstream-diff -
+ Print a diff of the current branch, compared to its upstream.
+</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 upstream-diff</em> [--wordwise] [<extra args for git-diff>*]</pre>
+<div class="attribution">
+</div></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_description">DESCRIPTION</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>Shows a diff beween your current branch and it’s upstream. This is <em>roughly</em> the
+same as:</p></div>
+<div class="listingblock">
+<div class="content">
+<pre><code>git diff --patience -C -C HEAD@{upstream} <b><1></b> <b><2></b></code></pre>
+</div></div>
+<div class="colist arabic"><ol>
+<li>
+<p>
+<code>-C -C</code> detects file copies/renames
+</p>
+</li>
+<li>
+<p>
+<code>--patience</code> uses the patience-diff algorithm, which tends to produce nicer
+ diffs in many cases.
+</p>
+</li>
+</ol></div>
+<div class="paragraph"><p>The difference is that <code>HEAD@{upstream}</code> is actually the tagged merge base of
+your branch (See <a href="git-rebase-update.html">git-rebase-update(1)</a>). This means that if your upstream
+branch was rebased, but you haven’t yet rebased the current branch on top of it,
+you’ll still see an accurate diff compared to just diffing against
+<code>@{upstream}</code>.</p></div>
+<div class="paragraph"><p>The <code>--wordwise</code> option also allows <code>git-diff</code> to do word-by-word comparison
+in a semi-intelligent way. However, sometimes it can produce surprising results,
+so it is disabled by default.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_options">OPTIONS</h2>
+<div class="sectionbody">
+<div class="dlist"><dl>
+<dt class="hdlist1">
+--wordwise
+</dt>
+<dd>
+<p>
+ Print a colorized word-wise diff instead of a line-wise diff.
+</p>
+</dd>
+<dt class="hdlist1">
+<extra args for git-diff>
+</dt>
+<dd>
+<p>
+ Extra arguments are included in the invocation of <a href="git-diff.html">git-diff(1)</a>. These
+ can be anything that <code>git-diff</code> normally takes.
+</p>
+<div class="openblock">
+<div class="content">
+<div class="dlist"><dl>
+<dt class="hdlist1">
+<code>--stat</code>
+</dt>
+<dd>
+<p>
+ This is particularly useful to show <em>which</em> files have been changed in
+ comparison to the upstream branch.
+</p>
+</dd>
+<dt class="hdlist1">
+<code>-- <filename patterns>*</code>
+</dt>
+<dd>
+<p>
+ Restrict the diff to only show the diff for given files compared to the
+ upstream.
+</p>
+</dd>
+</dl></div>
+</div></div>
+</dd>
+</dl></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_configuration_variables">CONFIGURATION VARIABLES</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="_depot_tools_upstream_diff_default_args">depot-tools.upstream-diff.default-args</h3>
+<div class="paragraph"><p>A list-configuration variable. Each instance of this config variable will be
+prepended to all invocations of <code>git upstream-diff</code>, as if you had passed them
+on the command line.</p></div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_suggested_aliases">SUGGESTED ALIASES</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>Some common short-hand aliases. Feel free to add these to your <em>~/.gitconfig</em>
+file.</p></div>
+<div class="listingblock">
+<div class="content">
+<pre><code>[alias]
+ git udiff = upstream-diff</code></pre>
+</div></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph"><p><a href="git-rebase-update.html">git-rebase-update(1)</a></p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_chromium_depot_tools">CHROMIUM DEPOT_TOOLS</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>Part of the chromium <a href="depot_tools.html">depot_tools(1)</a> suite. These tools are meant to
+assist with the development of chromium and related projects. Download the tools
+from <a href="https://chromium.googlesource.com/chromium/tools/depot_tools.git">here</a>.</p></div>
+</div>
+</div>
+</div>
+<div id="footnotes"><hr /></div>
+<div id="footer">
+<div id="footer-text">
+Last updated 2014-03-25 15:03:05 PDT
+</div>
+</div>
+</body>
+</html>