271 lines
18 KiB
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271 lines
18 KiB
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<main>
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<h1 id="the-watch-command"><a class="header" href="#the-watch-command">The watch command</a></h1>
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<p>The <code>watch</code> command is useful when you want your book to be rendered on every
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file change. You could repeatedly issue <code>mdbook build</code> every time a file is
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changed. But using <code>mdbook watch</code> once will watch your files and will trigger a
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build automatically whenever you modify a file; this includes re-creating
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deleted files still mentioned in <code>SUMMARY.md</code>!</p>
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<h4 id="specify-a-directory"><a class="header" href="#specify-a-directory">Specify a directory</a></h4>
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<p>The <code>watch</code> command can take a directory as an argument to use as the book's
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root instead of the current working directory.</p>
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<pre><code class="language-bash">mdbook watch path/to/book
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</code></pre>
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<h4 id="--open"><a class="header" href="#--open">--open</a></h4>
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<p>When you use the <code>--open</code> (<code>-o</code>) option, mdbook will open the rendered book in
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your default web browser.</p>
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<h4 id="--dest-dir"><a class="header" href="#--dest-dir">--dest-dir</a></h4>
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<p>The <code>--dest-dir</code> (<code>-d</code>) option allows you to change the output directory for the
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book. Relative paths are interpreted relative to the book's root directory. If
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not specified it will default to the value of the <code>build.build-dir</code> key in
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<code>book.toml</code>, or to <code>./book</code>.</p>
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<h4 id="specify-exclude-patterns"><a class="header" href="#specify-exclude-patterns">Specify exclude patterns</a></h4>
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<p>The <code>watch</code> command will not automatically trigger a build for files listed in
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the <code>.gitignore</code> file in the book root directory. The <code>.gitignore</code> file may
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contain file patterns described in the <a href="https://git-scm.com/docs/gitignore">gitignore
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documentation</a>. This can be useful for
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ignoring temporary files created by some editors.</p>
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<p><em>Note: Only <code>.gitignore</code> from book root directory is used. Global
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<code>$HOME/.gitignore</code> or <code>.gitignore</code> files in parent directories are not used.</em></p>
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