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<h1><a href="../index.html">
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<ul><li><a href="../index.html">home</a></li>
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<!--Weave of 'Build Methodology' 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="../inbuildn.html">Inbuild Modules</a></li><li><a href="index.html">supervisor</a></li><li><a href="index.html#3">Chapter 3: Incremental Builds</a></li><li><b>Build Methodology</b></li></ul></div>
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<p class="purpose">Whether to run tasks internally in some merged tool, or run via the shell, or simply trace to the standard output what we think ought to be done.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>This is rather grandly named for what it is: it's just a bundle of settings
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about how to carry out build steps. Should we (a) make a dry run, just printing
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hypothetical shell commands, or (b) issue those shell commands via <span class="extract"><span class="extract-syntax">system</span></span>,
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or (c) take direct action by calling functions within the current executable?
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If (a) or (b) then we will need to know the locations of the executable files
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for the tools <span class="extract"><span class="extract-syntax">inter</span></span>, <span class="extract"><span class="extract-syntax">inform6</span></span>, <span class="extract"><span class="extract-syntax">inform7</span></span> and <span class="extract"><span class="extract-syntax">inblorb</span></span>.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">DRY_RUN_METHODOLOGY</span><span class="plain-syntax"> </span><span class="identifier-syntax">from</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">SHELL_METHODOLOGY</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">INTERNAL_METHODOLOGY</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">build_methodology</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">to_inter</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">to_inform6</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">to_inform7</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">to_inblorb</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">methodology</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">build_methodology</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure build_methodology is accessed in 3/bs2, 3/is, 3/is2, 3/is3, 3/is4, 4/em, 4/ebm, 4/km, 4/lm, 4/pm, 4/tm and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>If the <span class="extract"><span class="extract-syntax">tangled</span></span> flag is set, we expect <span class="extract"><span class="extract-syntax">inform7</span></span>, for example, to be at
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<span class="extract"><span class="extract-syntax">tools_path/inform7/Tangled/inform7</span></span>; if it is clear, we expect it only to
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be <span class="extract"><span class="extract-syntax">tools_path/inform7</span></span>. This is relevant only for the command-line Inbuild,
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which used tangled mode by default, but untangled mode if the user has
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specified an explicit path at the command line.
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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">build_methodology</span><span class="plain-syntax"> *</span><span class="function-syntax">BuildMethodology::new</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">BuildMethodology::new</span></span>:<br/><a href="3-bm.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">tools_path</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">tangled</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">meth</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">build_methodology</span><span class="plain-syntax"> *</span><span class="identifier-syntax">BM</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">build_methodology</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">BM</span><span class="plain-syntax">-></span><span class="element-syntax">methodology</span><span class="plain-syntax"> = </span><span class="identifier-syntax">meth</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inter_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">tools_path</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">tangled</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">inter_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inter"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">inter_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Tangled"</span><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">BM</span><span class="plain-syntax">-></span><span class="element-syntax">to_inter</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">inter_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inter"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inform6_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">tools_path</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">tangled</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inform6_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">inform6_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inform6"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inform6_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">inform6_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Tangled"</span><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">BM</span><span class="plain-syntax">-></span><span class="element-syntax">to_inform6</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">inform6_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inform6"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inform7_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">tools_path</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">tangled</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inform7_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">inform7_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inform7"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inform7_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">inform7_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Tangled"</span><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">BM</span><span class="plain-syntax">-></span><span class="element-syntax">to_inform7</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">inform7_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inform7"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inblorb_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">tools_path</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">tangled</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inblorb_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">inblorb_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inblorb"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inblorb_path</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">inblorb_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Tangled"</span><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">BM</span><span class="plain-syntax">-></span><span class="element-syntax">to_inblorb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">inblorb_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inblorb"</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">BM</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>The <span class="extract"><span class="extract-syntax">inform7</span></span> tool only ever uses the internal methodology, for which
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these filenames are irrelevant, since no shell commands are ever issued.
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It gets its BM by calling the following:
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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">build_methodology</span><span class="plain-syntax"> *</span><span class="function-syntax">BuildMethodology::stay_in_current_process</span><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">return</span><span class="plain-syntax"> </span><a href="3-bm.html#SP2" class="function-link"><span class="function-syntax">BuildMethodology::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="constant-syntax">INTERNAL_METHODOLOGY</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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