Revision 513947 of Getting SpiderMonkey source code

<p>You can get the SpiderMonkey source code in gzipped form or directly from the Mercurial repository.</p>
<h2 id="Downloading_gzipped_SpiderMonkey_source_code">Downloading gzipped SpiderMonkey source code</h2>
<p>You can download gzipped SpiderMonkey source code from the following URL:</p>
<pre>
<span class="plain"><a href="https://ftp.mozilla.org/pub/mozilla.org/js/" title="https://ftp.mozilla.org/pub/mozilla.org/js/">https://ftp.mozilla.org/pub/mozilla.org/js/</a></span>
</pre>
<p>Here is a command-line example of downloading and unzipping SpiderMonkey source code version 24.2:</p>
<pre>
mkdir mozilla
cd mozilla
wget <a href="https://ftp.mozilla.org/pub/mozilla.org/js/mozjs-24.2.0.tar.bz2">https://ftp.mozilla.org/pub/mozilla.org/js/mozjs-24.2.0.tar.bz2</a>
tar xzf mozjs-24.2.0.tar.bz2
</pre>
<p>These commands should work on most platforms including Windows, as long as on Windows you are using the <a href="/En/Developer_Guide/Build_Instructions/Windows_Prerequisites#mozillabuild" title="https://developer.mozilla.org/en/Windows_Build_Prerequisites#mozillabuild">MozillaBuild</a> bash shell.</p>
<h2 id="Getting_the_latest_SpiderMonkey_source_code" name="Getting_the_latest_SpiderMonkey_source_code">Getting the latest SpiderMonkey source code from Mercurial</h2>
<p>The <a href="/en/Mercurial" title="en/Mercurial">Mercurial</a> repository at <a class="external" href="https://hg.mozilla.org/mozilla-central/" title="https://hg.mozilla.org/mozilla-central/">https://hg.mozilla.org/mozilla-central/</a> hosts the latest SpiderMonkey sources. Mercurial is also known as hg.</p>
<p>The following command line downloads the entire Mozilla repository, including the full change history and a lot of Gecko and Firefox source code that isn't part of SpiderMonkey. It also changes to the SpiderMonkey directory (js/src).</p>
<pre class="eval">
hg clone <span class="nowiki">https://hg.mozilla.org/mozilla-central/</span>
cd js/src
</pre>
<p>To avoid getting the full change history, click the <code>zip</code> or <code>gz</code> links at <a class="external" href="https://hg.mozilla.org/index.cgi/mozilla-central/file/tip" title="https://hg.mozilla.org/index.cgi/mozilla-central/file/tip">https://hg.mozilla.org/index.cgi/mozilla-central/file/tip</a>. This fetches a snapshot of the current Mozilla tree.</p>
<p>If you have problems with the instructions above, you can read the full details of using Mercurial to get Mozilla code <a href="https://developer.mozilla.org/en-US/docs/Developer_Guide/Source_Code/Mercurial" title="https://developer.mozilla.org/en-US/docs/Developer_Guide/Source_Code/Mercurial">here</a>. That page also contains links to several bundles, which can be useful if you have a poor network connection.</p>
<h2 id="Getting_the_latest_SpiderMonkey_source_code" name="Getting_the_latest_SpiderMonkey_source_code">Getting the latest SpiderMonkey source code from Git</h2>
<p>The following command line downloads the entire Mozilla repository, including the full change history and a lot of Gecko and Firefox source code that isn't part of SpiderMonkey. It also changes to the SpiderMonkey directory (js/src).</p>
<pre class="eval">
git clone https://github.com/mozilla/gecko-dev.git
cd mozilla-central/js/src
</pre>
<p>If you have any problems check the <a href="https://wiki.mozilla.org/Github" title="https://wiki.mozilla.org/Github">https://wiki.mozilla.org/Github</a> page.</p>
<h2 id="Getting_older_SpiderMonkey_sources_from_CVS" name="Getting_older_SpiderMonkey_sources_from_CVS">Getting older SpiderMonkey sources from CVS</h2>
<div class="note">
 <strong>Note:</strong> You will need to explicitly fetch the JavaScript shell sources even if you currently build another Mozilla project, as there are files specific to the shell that are not normally found in a Mozilla source tree.</div>
<p>Just like when you're fetching any other Mozilla project from CVS, you need to log into the CVS server first. To do this, <code>cd</code> into the base directory you'd like to check out the code into, then enter the following command at your command line:</p>
<pre>
cvs -d&nbsp;:pserver:[email protected]:/cvsroot login
</pre>
<p>When prompted, enter the password&nbsp;<code>anonymous</code>.</p>
<p>Once you've logged in, <code>cd</code> into the root of your CVS tree and enter the following command:</p>
<pre>
cvs -d&nbsp;:pserver:[email protected]:/cvsroot co -l mozilla/js/src mozilla/js/src/config mozilla/js/src/editline mozilla/js/src/fdlibm
</pre>
<p>This checks out all the files needed in order to build the JavaScript shell.</p>
<p>If you also want the regression tests, add this command:</p>
<pre>
cvs -d&nbsp;:pserver:[email protected]:/cvsroot co mozilla/js/tests
</pre>
<h2 id="Getting_older_branch_versions_of_SpiderMonkey" name="Getting_older_branch_versions_of_SpiderMonkey">Getting older branch versions of SpiderMonkey</h2>
<p>If you want to experiment with a specific branch's version of SpiderMonkey, you need to check out js/src from branch but check out <code>editline</code> and <code>config</code> from trunk:</p>
<pre>
cvs -d&nbsp;:pserver:[email protected]:/cvsroot co -l -r <em><var>BRANCH_NAME</var></em> mozilla/js/src mozilla/js/src/fdlibm
cvs -d&nbsp;:pserver:[email protected]:/cvsroot co -l mozilla/js/src/config mozilla/js/src/editline
</pre>
<p>Change <code><em>BRANCH_NAME</em></code> to the name of the branch you want to check out. You can use a JavaScript branch name (e.g. <code>JS_1_7_ALPHA_BRANCH</code>) or a Mozilla branch name (e.g. <code>MOZILLA_1_8_BRANCH</code>).</p>