63 lines
3.1 KiB
HTML
63 lines
3.1 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>2.4.1. Enabling and Disabling Build History</title>
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<link rel="stylesheet" type="text/css" href="../book.css">
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<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
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<link rel="home" href="index.html" title="The Yocto Project Reference Manual">
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<link rel="up" href="maintaining-build-output-quality.html" title="2.4. Maintaining Build Output Quality">
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<link rel="prev" href="maintaining-build-output-quality.html" title="2.4. Maintaining Build Output Quality">
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<link rel="next" href="understanding-what-the-build-history-contains.html" title="2.4.2. Understanding What the Build History Contains">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.4.1. Enabling and Disabling Build History">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="enabling-and-disabling-build-history"></a>2.4.1. Enabling and Disabling Build History</h3></div></div></div>
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<p>
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Build history is disabled by default.
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To enable it, add the following statements to the end of your
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<code class="filename">conf/local.conf</code> file found in the
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<a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>:
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</p>
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<pre class="literallayout">
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INHERIT += "buildhistory"
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BUILDHISTORY_COMMIT = "1"
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</pre>
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<p>
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Enabling build history as previously described
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causes the build process to collect build
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output information and commit it to a local
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<a class="link" href="../dev-manual/git.html" target="_self">Git</a> repository.
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</p>
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<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
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<h3 class="title">Note</h3>
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Enabling build history increases your build times slightly,
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particularly for images, and increases the amount of disk
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space used during the build.
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</div>
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<p>
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</p>
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<p>
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You can disable build history by removing the previous statements
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from your <code class="filename">conf/local.conf</code> file.
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However, you should realize that enabling and disabling
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build history in this manner can change the
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<code class="filename">do_package</code> task checksums, which if you
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are using the OEBasicHash signature generator (the default
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for many current distro configurations including
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<code class="filename">DISTRO = "poky"</code> and
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<code class="filename">DISTRO = ""</code>) will result in the packaging
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tasks being re-run during the subsequent build.
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</p>
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<p>
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To disable the build history functionality without causing the
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packaging tasks to be re-run, add just this statement to your
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<code class="filename">conf/local.conf</code> file:
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</p>
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<pre class="literallayout">
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BUILDHISTORY_FEATURES = ""
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</pre>
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<p>
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</p>
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</div></body>
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</html>
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