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<p>Folks,</p>
<p>Alex A. was asking me some questions on this change and I thought
I would share some of the answers generally.</p>
<p>The change comes in the default definition of <span
class="blob-code-inner">JANA_GEOMETRY_URL. This variable
controls where geometry information comes from. In the bad old
days information could only come from files in $HDDS_HOME. The
modern approach is to get it from the CCDB.<br>
</span></p>
<p><span class="blob-code-inner">Old default:</span></p>
<p><span class="blob-code-inner"> </span><span
class="blob-code-inner"><span class="blob-code-inner">setenv
JANA_GEOMETRY_URL <span class="x x-first x-last">xmlfile</span>://<span
class="pl-smi x x-first x-last">$HDDS_HOME</span>/main_HDDS.xml</span></span></p>
<p><span class="blob-code-inner"><span class="blob-code-inner">New
default:</span></span></p>
<p><span class="blob-code-inner"><span class="blob-code-inner"><span
class="blob-code-inner"> setenv JANA_GEOMETRY_URL <span
class="x x-first x-last">ccdb</span>://<span class="x
x-first x-last">/GEOMETRY</span>/main_HDDS.xml</span></span></span></p>
<p><span class="blob-code-inner"><span class="blob-code-inner"><span
class="blob-code-inner">so this change modernizes the
default.<br>
</span></span></span></p>
<p><span class="blob-code-inner"><span class="blob-code-inner"><span
class="blob-code-inner">These definitions are done in
gluex_env.(c)sh, upon which gluex_env_jlab.(c)sh is based.
Note that users are free to overwrite these defaults in
their environments to get whatever behavior is desired.<br>
</span></span></span></p>
If you have an old analysis, and you were depending on the default
definition of JANA_GEOMETRY_URL, then in the new world, you will
have to explicitly set this variable to the old definition to
guarantee your old behavior.<br>
<br>
-- Mark<br>
<br>
<div class="moz-cite-prefix">On 05/22/2018 04:31 PM, Mark Ito wrote:<br>
</div>
<blockquote type="cite"
cite="mid:057a801e-e7fe-3abe-917a-a36fd3f85c45@jlab.org">Folks,
<br>
<br>
There is new version of build_scripts installed at JLab. By
default, the geometry is obtained from the CCDB rather than the
XML files in HDDS_HOME. See the release notes at
<br>
<br>
<a class="moz-txt-link-freetext" href="https://github.com/JeffersonLab/build_scripts/releases/tag/1.31">https://github.com/JeffersonLab/build_scripts/releases/tag/1.31</a>
<br>
<br>
-- Mark
<br>
<br>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Mark Ito, <a class="moz-txt-link-abbreviated" href="mailto:marki@jlab.org">marki@jlab.org</a>, (757)269-5295
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