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Version changes of the grunt-contrib-uglify version can result in different min.js output. Lock it so the minified files won't have spurious changes.
42 lines
1.4 KiB
Markdown
42 lines
1.4 KiB
Markdown
This directory contains build tools for Shiny.
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## Grunt
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Grunt is a build tool that runs on node.js. In Shiny, it is used for concatenating, minifying, and linting Javascript code.
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### Installing Grunt
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Grunt requires Node.js and npm (the Node.js package manager). Installation of these programs differs across platforms and is generally pretty easy, so I won't include instructions here.
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Once node and npm are installed, install grunt:
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```
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# Install grunt command line tool globally
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sudo npm install -g grunt-cli
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# Install grunt plus modules for this project
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npm install
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# To update modules in the future
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npm update
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```
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### Using Grunt
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To run all default grunt tasks (concatenation, minification, and jshint), simply go into the `tools` directory and run:
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```
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grunt
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```
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It's also useful to run `grunt` so that it monitors files for changes and run tasks as necessary. This is done with:
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```
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grunt watch
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```
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One of the tasks concatenates all the .js files in `/srcjs` together into `/inst/www/shared/shiny.js`. Another task minifies `shiny.js` to generate `shiny.min.js`. The minified file is supplied to the browser, along with a source map file, `shiny.min.js.map`, which allows a user to view the original Javascript source when using the debugging console in the browser.
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During development of Shiny's Javascript code, it's best to use `grunt watch` so that the minified file will get updated whenever you make changes the Javascript sources.
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