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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<title>Kit Versioning</title>
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<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<meta name="viewport" content="width=device-width initial-scale=1">
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popup.classList.toggle("show");
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}
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<h1><a href="../index.html">
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<img src="../docs-assets/Inform.png" height=72">
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</a></h1>
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<ul><li><a href="../index.html">home</a></li>
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</ul><h2>Compiler</h2><ul>
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<li><a href="../structure.html">structure</a></li>
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<li><a href="../inbuildn.html">inbuild</a></li>
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<li><a href="../inform7n.html">inform7</a></li>
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<li><a href="../intern.html">inter</a></li>
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<li><a href="../services.html">services</a></li>
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<li><a href="../secrets.html">secrets</a></li>
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</ul><h2>Other Tools</h2><ul>
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<li><a href="../inblorbn.html">inblorb</a></li>
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<li><a href="../inform6.html">inform6</a></li>
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<li><a href="../inpolicyn.html">inpolicy</a></li>
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</ul><h2>Resources</h2><ul>
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<li><a href="../extensions.html">extensions</a></li>
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<li><a href="../kits.html">kits</a></li>
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</ul><h2>Repository</h2><ul>
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<li><a href="https://github.com/ganelson/inform"><img src="../docs-assets/github.png" height=18> github</a></li>
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</ul><h2>Related Projects</h2><ul>
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<li><a href="../../../inweb/index.html">inweb</a></li>
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<li><a href="../../../intest/index.html">intest</a></li>
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</ul>
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</nav>
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<main role="main">
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<!--Weave of 'Kit Versioning' generated by Inweb-->
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<div class="breadcrumbs">
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="index.html">inpolicy</a></li><li><a href="index.html#2">Chapter 2: Policies</a></li><li><b>Kit Versioning</b></li></ul></div>
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<p class="purpose">To ensure that the built-in kits share version numbers with the core compiler.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>This implements <span class="extract"><span class="extract-syntax">-kit-versions</span></span>:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">KitVersioning::show_versions</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">KitVersioning::show_versions</span></span>:<br/>Main - <a href="1-mn.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">web_md</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inform7_web</span><span class="plain-syntax"> =</span>
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<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/8-ws.html#SP5" class="function-link"><span class="function-syntax">WebMetadata::get_without_modules</span></a><span class="plain-syntax">(</span><a href="../../../inweb/foundation-module/3-pth.html#SP5" class="function-link"><span class="function-syntax">Pathnames::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"inform7"</span><span class="plain-syntax">), </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">semantic_version_number</span><span class="plain-syntax"> </span><span class="identifier-syntax">core_V</span><span class="plain-syntax"> = </span><span class="identifier-syntax">inform7_web</span><span class="plain-syntax">-></span><span class="element-syntax">version_number</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"Core version is %v\n"</span><span class="plain-syntax">, &</span><span class="identifier-syntax">core_V</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-kv.html#SP3" class="function-link"><span class="function-syntax">KitVersioning::iterate</span></a><span class="plain-syntax">(</span><a href="../../../inweb/foundation-module/7-vn.html#SP4" class="function-link"><span class="function-syntax">VersionNumbers::null</span></a><span class="plain-syntax">());</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>And <span class="extract"><span class="extract-syntax">-sync-kit-versions</span></span>:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">KitVersioning::sync_versions</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">KitVersioning::sync_versions</span></span>:<br/>Main - <a href="1-mn.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">web_md</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inform7_web</span><span class="plain-syntax"> =</span>
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<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/8-ws.html#SP5" class="function-link"><span class="function-syntax">WebMetadata::get_without_modules</span></a><span class="plain-syntax">(</span><a href="../../../inweb/foundation-module/3-pth.html#SP5" class="function-link"><span class="function-syntax">Pathnames::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"inform7"</span><span class="plain-syntax">), </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">semantic_version_number</span><span class="plain-syntax"> </span><span class="identifier-syntax">core_V</span><span class="plain-syntax"> = </span><span class="identifier-syntax">inform7_web</span><span class="plain-syntax">-></span><span class="element-syntax">version_number</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"inform7 web has version %v\n"</span><span class="plain-syntax">, &</span><span class="identifier-syntax">core_V</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-kv.html#SP3" class="function-link"><span class="function-syntax">KitVersioning::iterate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">core_V</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>Both use the following to work through the built-in kits:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">KitVersioning::iterate</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">KitVersioning::iterate</span></span>:<br/><a href="2-kv.html#SP1">§1</a>, <a href="2-kv.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">semantic_version_number</span><span class="plain-syntax"> </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><a href="2-kv.html#SP3" class="function-link"><span class="function-syntax">KitVersioning::show_version</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"WorldModelKit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-kv.html#SP3" class="function-link"><span class="function-syntax">KitVersioning::show_version</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"EnglishLanguageKit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-kv.html#SP3" class="function-link"><span class="function-syntax">KitVersioning::show_version</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"CommandParserKit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-kv.html#SP3" class="function-link"><span class="function-syntax">KitVersioning::show_version</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"BasicInformKit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-kv.html#SP3" class="function-link"><span class="function-syntax">KitVersioning::show_version</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"Architecture16Kit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-kv.html#SP3" class="function-link"><span class="function-syntax">KitVersioning::show_version</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"Architecture32Kit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">KitVersioning::show_version</span><span class="plain-syntax">(</span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="reserved-syntax">semantic_version_number</span><span class="plain-syntax"> </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/3-pth.html#SP5" class="function-link"><span class="function-syntax">Pathnames::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"inform7/Internal/Inter"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/3-pth.html#SP4" class="function-link"><span class="function-syntax">Pathnames::down</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">semantic_version_number</span><span class="plain-syntax"> </span><span class="identifier-syntax">V</span><span class="plain-syntax"> = </span><a href="2-kv.html#SP4" class="function-link"><span class="function-syntax">KitVersioning::read_version</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"Kit %S has version %v\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</span><span class="plain-syntax">, &</span><span class="identifier-syntax">V</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>The actual work, then, is done by this function, which returns the version
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number of the kit stored at the path <span class="extract"><span class="extract-syntax">kit</span></span>; if <span class="extract"><span class="extract-syntax">set_to</span></span> is other than null,
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the kit's version is changed to <span class="extract"><span class="extract-syntax">set_to</span></span>, and this value returned. In both
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cases, the kit's JSON metadata file is read in; in the second case, it is
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then written back out, modified to include the new version number. (Note
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that no file write occurs unless an actual change is needed: if <span class="extract"><span class="extract-syntax">set_to</span></span>
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is the same as the version it already has, there's no need to rewrite.)
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">semantic_version_number</span><span class="plain-syntax"> </span><span class="function-syntax">KitVersioning::read_version</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">KitVersioning::read_version</span></span>:<br/><a href="2-kv.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">kit</span><span class="plain-syntax">, </span><span class="reserved-syntax">semantic_version_number</span><span class="plain-syntax"> </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/3-fln.html#SP2" class="function-link"><span class="function-syntax">Filenames::in</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">kit</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"kit_metadata.json"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">contents</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/4-tf.html#SP5" class="function-link"><span class="function-syntax">TextFiles::read</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">, </span><span class="string-syntax">"unable to read file of JSON metadata"</span><span class="plain-syntax">, </span><span class="constant-syntax">TRUE</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> &</span><a href="2-kv.html#SP5" class="function-link"><span class="function-syntax">KitVersioning::read_metadata_file_helper</span></a><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">contents</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">text_file_position</span><span class="plain-syntax"> </span><span class="identifier-syntax">tfp</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-tf.html#SP4" class="function-link"><span class="function-syntax">TextFiles::at</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">JSON_value</span><span class="plain-syntax"> *</span><span class="identifier-syntax">value</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-jsn.html#SP11" class="function-link"><span class="function-syntax">JSON::decode</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">contents</span><span class="plain-syntax">, &</span><span class="identifier-syntax">tfp</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">value</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">value</span><span class="plain-syntax">-></span><span class="element-syntax">JSON_type</span><span class="plain-syntax"> == </span><span class="constant-syntax">ERROR_JSONTYPE</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/3-em.html#SP6" class="function-link"><span class="function-syntax">Errors::at_position</span></a><span class="plain-syntax">(</span><span class="string-syntax">"Syntax error in metadata file for kit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/7-vn.html#SP4" class="function-link"><span class="function-syntax">VersionNumbers::null</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">contents</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">JSON_value</span><span class="plain-syntax"> *</span><span class="identifier-syntax">is</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-jsn.html#SP7" class="function-link"><span class="function-syntax">JSON::look_up_object</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">value</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"is"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">is</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/3-em.html#SP6" class="function-link"><span class="function-syntax">Errors::at_position</span></a><span class="plain-syntax">(</span><span class="string-syntax">"Semantic error in metadata file for kit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/7-vn.html#SP4" class="function-link"><span class="function-syntax">VersionNumbers::null</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">JSON_value</span><span class="plain-syntax"> *</span><span class="identifier-syntax">version</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-jsn.html#SP7" class="function-link"><span class="function-syntax">JSON::look_up_object</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">is</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"version"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">semantic_version_number</span><span class="plain-syntax"> </span><span class="identifier-syntax">V</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/7-vn.html#SP4" class="function-link"><span class="function-syntax">VersionNumbers::null</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">version</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">V</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/7-vn.html#SP7" class="function-link"><span class="function-syntax">VersionNumbers::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">version</span><span class="plain-syntax">-></span><span class="element-syntax">if_string</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/foundation-module/7-vn.html#SP4" class="function-link"><span class="function-syntax">VersionNumbers::is_null</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">V</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/3-em.html#SP6" class="function-link"><span class="function-syntax">Errors::at_position</span></a><span class="plain-syntax">(</span><span class="string-syntax">"Malformed version number in metadata file for kit"</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/7-vn.html#SP4" class="function-link"><span class="function-syntax">VersionNumbers::null</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/foundation-module/7-vn.html#SP4" class="function-link"><span class="function-syntax">VersionNumbers::is_null</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">set_to</span><span class="plain-syntax">) == </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">)</span>
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|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-kv.html#SP4_1" class="named-paragraph-link"><span class="named-paragraph">Decide whether to impose the new version</span><span class="named-paragraph-number">4.1</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">V</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
|
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<p class="commentary firstcommentary"><a id="SP4_1" class="paragraph-anchor"></a><b>§4.1. </b>The following test used to be just <span class="extract"><span class="extract-syntax">VersionNumbers::ne(set_to, V)</span></span>, but this,
|
|
because it properly followed the semver standard, regarded them as equal if they
|
|
differed only in the build code — so <span class="extract"><span class="extract-syntax">10.1.0-beta+6V20</span></span> would not be updated to
|
|
<span class="extract"><span class="extract-syntax">10.1.0-beta+6V44</span></span>, for example. We now force a sync if there is any textual
|
|
difference at all.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Decide whether to impose the new version</span><span class="named-paragraph-number">4.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">a</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">b</span><span class="plain-syntax">)</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">a</span><span class="plain-syntax">, </span><span class="string-syntax">"%v"</span><span class="plain-syntax">, &</span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">b</span><span class="plain-syntax">, </span><span class="string-syntax">"%v"</span><span class="plain-syntax">, &</span><span class="identifier-syntax">V</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::ne</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">a</span><span class="plain-syntax">, </span><span class="identifier-syntax">b</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-kv.html#SP4_1_1" class="named-paragraph-link"><span class="named-paragraph">Change the version to set_to</span><span class="named-paragraph-number">4.1.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">a</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">b</span><span class="plain-syntax">)</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="2-kv.html#SP4">§4</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP4_1_1" class="paragraph-anchor"></a><b>§4.1.1. </b>We change the JSON object for the kit's metadata (at object.is.version), and
|
|
then encode the object out as a new version of the file:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Change the version to set_to</span><span class="named-paragraph-number">4.1.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">version</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">version</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-jsn.html#SP4" class="function-link"><span class="function-syntax">JSON::new_string</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">""</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/4-jsn.html#SP6" class="function-link"><span class="function-syntax">JSON::add_to_object</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">is</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"version"</span><span class="plain-syntax">, </span><span class="identifier-syntax">version</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"Rewriting %f to impose version number %v (was %v)\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">, &</span><span class="identifier-syntax">set_to</span><span class="plain-syntax">, &</span><span class="identifier-syntax">V</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/4-sm.html#SP15" class="function-link"><span class="function-syntax">Str::clear</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">version</span><span class="plain-syntax">-></span><span class="element-syntax">if_string</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">version</span><span class="plain-syntax">-></span><span class="element-syntax">if_string</span><span class="plain-syntax">, </span><span class="string-syntax">"%v"</span><span class="plain-syntax">, &</span><span class="identifier-syntax">set_to</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> </span><span class="identifier-syntax">JSON_struct</span><span class="plain-syntax">; </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = &</span><span class="identifier-syntax">JSON_struct</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">STREAM_OPEN_TO_FILE</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="constant-syntax">UTF8_ENC</span><span class="plain-syntax">) == </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/3-em.html#SP2" class="function-link"><span class="function-syntax">Errors::fatal_with_file</span></a><span class="plain-syntax">(</span><span class="string-syntax">"unable to open metadata file for output: %f"</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/4-jsn.html#SP18" class="function-link"><span class="function-syntax">JSON::encode</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">value</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">STREAM_CLOSE</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">V</span><span class="plain-syntax"> = </span><span class="identifier-syntax">set_to</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="2-kv.html#SP4_1">§4.1</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">KitVersioning::read_metadata_file_helper</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">KitVersioning::read_metadata_file_helper</span></span>:<br/><a href="2-kv.html#SP4">§4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_file_position</span><span class="plain-syntax"> *</span><span class="identifier-syntax">tfp</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">v_state</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">contents</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">v_state</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">contents</span><span class="plain-syntax">, </span><span class="string-syntax">"%S\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">text</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
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