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--- | ||
eleventyNavigation: | ||
key: Watch and Serve | ||
parent: Configuration | ||
order: 11 | ||
--- | ||
# Watch and Serve Configuration | ||
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## Watch JavaScript Dependencies {% addedin "0.7.0" %} | ||
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When in `--watch` mode, Eleventy will spider the dependencies of your [JavaScript Templates](/docs/languages/javascript/) (`.11ty.js`), [JavaScript Data Files](/docs/data-js/) (`.11tydata.js` or `_data/**/*.js`), or Configuration File (usually `.eleventy.js`) to watch those files too. Files in `node_modules` directories are ignored. This feature is _enabled by default_. | ||
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{% codetitle ".eleventy.js" %} | ||
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```js | ||
module.exports = function(eleventyConfig) { | ||
// Enabled by default | ||
eleventyConfig.setWatchJavaScriptDependencies(false); | ||
}; | ||
``` | ||
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## Add Your Own Watch Targets {% addedin "0.10.0" %} | ||
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The `addWatchTarget` config method allows you to manually add a file or directory for Eleventy to watch. When the file or the files in this directory change Eleventy will trigger a build. This is useful if Eleventy is not directly aware of any external file dependencies. | ||
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{% codetitle ".eleventy.js" %} | ||
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```js | ||
module.exports = function(eleventyConfig) { | ||
eleventyConfig.addWatchTarget("./src/scss/"); | ||
}; | ||
``` | ||
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Eleventy will not add a watch for files or folders that are in `.gitignore`, unless `setUseGitIgnore` is turned off. See the chapter on [ignore files](/docs/ignores/#opt-out-of-using-.gitignore). | ||
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## Override Browsersync Server Options {% addedin "0.7.0" %} | ||
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Useful if you want to change or override the default Browsersync configuration. Find the Eleventy defaults in [`EleventyServe.js`](https://github.com/11ty/eleventy/blob/master/src/EleventyServe.js). Take special note that Eleventy does not use Browsersync’s watch options and trigger reloads manually after our own internal watch methods are complete. See full options list on the [Browsersync documentation](https://browsersync.io/docs/options). | ||
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_(Read more at [Issue #123](https://github.com/11ty/eleventy/issues/123))_ | ||
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{% codetitle ".eleventy.js" %} | ||
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```js | ||
module.exports = function(eleventyConfig) { | ||
eleventyConfig.setBrowserSyncConfig({ | ||
notify: true | ||
}); | ||
}; | ||
``` | ||
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## Add delay before re-running {% addedin "0.11.0" %} | ||
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A hardcoded amount of time Eleventy will wait before triggering a new build when files have changes during `--watch` or `--serve` modes. You probably won’t need this, but is useful in some edge cases with other task runners (Gulp, Grunt, etc). | ||
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```js | ||
module.exports = function(eleventyConfig) { | ||
// default is 0 | ||
eleventyConfig.setWatchThrottleWaitTime(100); // in milliseconds | ||
}; | ||
``` |